1004 000 --- ss 021- fire fighting system philosopy and design basis rev

Owner

DIRECTORATE GENERAL FOR GAS POWER

PLANT PROJECTS

EPC Contractor

ALKHAIRAT 10x125 MW 9E GAS TURBINES

POWER PLANT PROJECT

Revision History Rev Revision Date Created by Checked by Approved by Description

A 17.05.2011 CBB EB CU FC

B 20.05.2011 CBB EB CU FC

C 24.05.2011 CBB EB CU FC

D 07.06.2011 CBB EB CU FA

Vendor doc No.:

Document Code (ÇALIK )

1004 000 --- SS 021

Vendor Logo Title, Subtitle

Fire Fighting Philosophy and Design Basis

Rev. D Format A4

Date

07.06.2011

Lang.

En

Sheet

59

INDEX:

1. PURPOSE AND SCOPE ..................................................................................................................................... 5

1.1. PURPOSE ......................................................................................................................................................... 5 1.2. SCOPE ............................................................................................................................................................. 5

2. EXECUTIVE SUMMARY .................................................................................................................................. 6

2.1. PROTECTED AREAS.......................................................................................................................................... 6

3. FIRE SYSTEM DESCRIPTION ........................................................................................................................ 7

3.1. WATER MAIN RING ................................................................................................................................... 7 3.2. SITE HYDRANTS .............................................................................................................................................. 8 3.3. HOSE AND STANDPIPE SYSTEM ........................................................................................................................ 8 3.4. PORTABLE EXTINGUISHERS .................................................................................................................. 9 3.5. SPRINKLER SYSTEM ............................................................................................................................... 10 3.6. WATER DELUGE SYSTEM ............................................................................................................................... 11 3.7. STORAGE TANKS COOLING SYSTEM .............................................................................................................. 11 3.8. FOAM SYSTEM ............................................................................................................................................... 12

3.8.1 Storage Tanks Foam System ................................................................................................................... 12 3.8.2 Tank Bund Area Foam System ................................................................................................................ 12 3.8.3 Crude Oil Forwarding Pumps and Diesel Fire Pumps Foam System ................................................... 13 3.8.4 Truck Unloading Area Foam Sprinkler System ...................................................................................... 13

4. FIRE FIGHTING SYSTEMS ........................................................................................................................... 14

4.1. GENERAL ...................................................................................................................................................... 14 4.2. FIRE WATER SYSTEM ................................................................................................................................... 14 4.3. FIRE FOAM SYSTEM ...................................................................................................................................... 15

4.3.1 Fire Foam System for Tank Fires ........................................................................................................... 15 4.3.2 Fire Foam System for Pool Fires and Spills in Dike Areas .................................................................... 16 4.3.3 Fire Foam System for Crude Oil Pumps and Unloading Station ........................................................... 16

4.4. SPRINKLER SYSTEM ...................................................................................................................................... 17 4.5. DELUGE WATER SYSTEM ............................................................................................................................... 17 4.6. FIRE FIGHTING AT THE AUXILIARY FACILITIES ............................................................................ 18

4.6.1 Process Areas .......................................................................................................................................... 18 4.6.2 Control room ........................................................................................................................................... 18 4.6.3 Laboratory ............................................................................................................................................... 18 4.6.4 Electrical substations/switch house ........................................................................................................ 18 4.6.5 General Buildings and Facilities ............................................................................................................ 18

Al- Khairat 10x125 MW 9E Gas Turbines Power Plant Project

Project No. ISSUE DATE

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4.6.6 Metering Station ...................................................................................................................................... 19

5. FIRE FIGHTING DESIGN BASIS .................................................................................................................. 20

5.1. APPLICATION RATES ............................................................................................................................. 20 5.1.1 Storage Tank Fixed Foam System ........................................................................................................... 20 5.1.2 Tank Dike Area Fixed Foam System ....................................................................................................... 21 5.1.3 Crude Oil Pumps and Unloading Station ............................................................................................... 22 5.1.4 Oil Transformers Area ............................................................................................................................ 22 5.1.5 Sprinklers ................................................................................................................................................. 23 5.1.6 Standpipe System and Hose Racks .......................................................................................................... 23

5.2. FIRE SCENARIOS ..................................................................................................................................... 23 5.2.1 Fire in Buildings ...................................................................................................................................... 23 5.2.2 Fire in Oil Transformers ......................................................................................................................... 25 5.2.3 Fire in Crude Oil Forwarding Pumps .................................................................................................... 26 5.2.4 Fire in Diesel Fire Pump ........................................................................................................................ 27 5.2.5 Fire in Truck Unloading Station ............................................................................................................. 28 5.2.6 Fire in Raw Crude Oil Tank 1 (West Tank) ............................................................................................ 28 5.2.7 Fire in Raw Crude Oil Tank 2 (East Tank) ............................................................................................. 31 5.2.8 Fire in LDO Tank 1 (West Tank) ............................................................................................................ 34 5.2.9 Fire in LDO Tank 2 (East Tank) ............................................................................................................. 36 5.2.10 Fire in Certification Tank 1 (North Tank) .......................................................................................... 39 5.2.11 Fire in Certification Tank 2 (South Tank) .......................................................................................... 42 5.2.12 Fire in Treated Tank (West Tank) ...................................................................................................... 45 5.2.13 Fire in Treated Tank (Mid Tank) ........................................................................................................ 47 5.2.14 Fire in Treated Tank (East Tank) ....................................................................................................... 49 5.2.15 Fire in Raw Crude Tanks Dike Area .................................................................................................. 51 5.2.16 Fire in LDO Tanks Dike Area ............................................................................................................ 53 5.2.17 Fire in Certification Tanks Dike Area ................................................................................................ 54 5.2.18 Fire in Treated Tanks Dike Area ........................................................................................................ 56

5.3. WATER DEMAND .................................................................................................................................... 57 5.4. FOAM DEMAND .......................................................................................................................................... 57

5.4.1 Foam Station 1 ........................................................................................................................................ 58 5.4.2 Foam Station 2 ........................................................................................................................................ 58 5.4.3 Foam Station 3 ........................................................................................................................................ 59



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1. PURPOSE AND SCOPE 1.1. PURPOSE

This document describes the Fire Fighting scenarios, the Fire Fighting functionality and facilities

of the Fire Fighting system of the Al Khairat Power Plant.

This document does not describe the fire detection and fire alarm of the Al Khairat Power Plant.

The fire detection and alarm philosophy for all the parts of the Terminal are described in the

specification for fire detection system. In addition this document does not describe the Fire

Fighting philosophy and design basis of the Gas Turbines as these are designed and supplied

by the Turbine Supplier GE.

1.2. SCOPE

The Fire Fighting System covers the following areas:

- The Fuel Storage Area

- Crude Oil Forwarding Pumps Area

- Transformers

- Buildings

- Plant Areas

The fire fighting philosophy is based on implementation of the relevant international standards in

conjunction with development of credible fire scenarios.



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2. EXECUTIVE SUMMARY The fire fighting system is designed to fulfill the IP and NFPA requirements. Fire Fighting Design

will be based on the “Single Fire Risk” concept (Depending on Complexity and Urgency), which

means that only one major fire will occur at a time and fire will not take place simultaneously at

different locations. There are several fire case (fire zone), where each fire zone will be

measured the fire water demand, thus the largest fire water demand is selected as the design

basis.

2.1. PROTECTED AREAS

The following areas are to be equipped with necessary firefighting equipment.

Area Protection Type

Gas Turbine Provided by GE.

Oil Transformers Automatic Water Spray Deluge System.

Cable Floors Automatic Water Spray Deluge System.

Store Building Automatic Water Sprinkler.

Workshop Building Automatic Water Sprinkler.

Crude Oil Forwarding Pumps Station Automatic Foam Spray Deluge System.

Fuel Storage Tanks

Foam System and Shell Spray Cooling

System.

Tank Bund Area

Fixed Foam Discharge Outlets or Fixed

Monitors.

Diesel Engine Fire Pumps Station Automatic Foam Spray Deluge System.

Truck Unloading Area Fixed Foam Nozzle System

Buildings

Standpipe and Hose Reel and Portable

Extinguishers.

Plant Area

Standpipe and Hose Rack System and Yard

Hydrants.



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3. FIRE SYSTEM DESCRIPTION The process description of the different subsystems of the fire fighting system will be described

in the following sections

3.1. WATER MAIN RING

The underground main fire ring will interconnect all the fire installation subsystems to the main

fire water pumping station. The fire main ring is designed to assure that the fire water can be

supplied to all these subsystems from two different ways (just in case of one point of the ring is

out of service). Therefore isolation valves are installed through the fire main ring. The

distribution system shall be designed to ensure a minimum residual pressure of 8 barg is

achieved at the longest and/or tallest point while flowing at the maximum fire water demand.

Hydraulic calculation shall be carried out to assure proper operation of the fire fighting system.

The fire water distribution design shall ensure that at the largest fire water flow requirement the

velocity in any one section of the ring main does not exceed 4.5 m/sec. The fire water ring main

shall be generally laid underground and parallel to plant roads or in open space. Isolation block

valves shall be provided such that no more than 300 meters of line containing hydrants,

monitors, deluge systems or hose reels are lost due to any line failure. The isolation block

valves shall also ensure that during any line failure the recirculation still feeds two of the four

sides of every ring main. Valves shall be located so that no more than six (6) water outlets are

located between isolation valves.

Underground piping and fittings used for the fire water ring main and lateral equipment shall be

carbon steel. No fire water piping shall be installed beneath buildings or stationary equipment.



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3.2. SITE HYDRANTS

Yard Hydrants will be located on site branching from the main fire ring. The spacing between

these hydrants shall not be more than 60 meters and the min distance between the hydrant and

a building will be tried to be kept as minimum 12 meters.

Outdoor hose storage cabinets will be located at each hydrant location and these cabinets will

include;

- hydrant turnkey and bar

- 65 mm hose standpipe with quick coupling

- 25 m lengths of 65 mm hose with quick couplings

- Jet/spray – on/off nozzle

- 65 mm hose branch pipe 22 mm bore nozzle

- Fire axe and crowbar

The aim of the hose cabinets is to suppress small spill and conventional fires with water

3.3. HOSE AND STANDPIPE SYSTEM

Standpipe system is the arrangement of piping, valves, hose connections, and allied equipment

installed in a building or structure, with the hose connections located in such a manner that

water can be discharged in streams or spray patterns through attached hose and nozzles, for

the purpose of extinguishing a fire, thereby protecting a building or structure and its contents in

addition to protecting the occupants.

The buildings, as indicated, will be protected by Standpipe and Hose system. The final location

and allocation of the Hose Cabinets inside the buildings will be determined based on the final

architectural drawings. The Hose cabinets inside the buildings will contain;

- 30 meter length of 25 mm diameter hose mounted on reel drum.

- The hose reel connected to the water supply shall be supplied with 25 mm NB isolating

ball valve and 25 mm NB pressure reducing valve and adjustable spray/jet nozzle.

- Hose cradles shall consist of a 30 meter length of 40 mm hose mounted on a hose rack

which shall be of the swinging arm type.



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- Both hose reels and hose cradles shall be equipped with quick coupling type of gun

metal with adjustable jet/spray nozzles.

- One unit of 9-10 kg dry power fire extinguisher for class ABC fires.

Al the buildings inside the plant are protected with standpipe hose system excluding Store and

Workshop where these buildings are protected with sprinkler system in addition.

3.4. PORTABLE EXTINGUISHERS

Under this section are included all the manual and portable mean of fire extinguishing that will

be installed on every room or enclosed space. Understanding this portable mean as a portable

device, carried or on wheels and operated by hand, containing an extinguishing agent that can

be expelled under pressure for the purpose of suppressing or extinguishing fire.

- 9-10 kg capacity dry power extinguishers for use against oil fires associated with

electrical equipment. The powder shall be expelled from the extinguisher by compressed

CO2 gas and controlled by a pistol grip nozzle attached to the discharge hose.

- 9-10 kg and 6 kg capacity CO2 extinguishers for use against fires associated with

electrical equipment. The extinguishers shall be provided with fixed discharge horn and

trigger valve control and trolley where required.

- 9-10 liters/capacity CO2 gas pressure operated water extinguishers for use against

ordinary small fires. The discharge nozzle shall be supplied with flexible hose and the

control shall be such that intermittent control is possible.

- 9-10 liters capacity foam extinguishers for use against small oil fires. The extinguishers

shall be pressurized with CO2 gas.

The locations of the Portable Extinguishers are to be finalized considering the final process area

layout and buildings architectural drawings.



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3.5. SPRINKLER SYSTEM

A wet pipe sprinkler/spray is a fixed fire protection system that use piping filled with pressurized

water supplied from a dependable source. Closed heat sensitive automatic sprinklers/sprays

spaced and located in accordance with recognized installation standards are used to detect a

fire. Upon operation, the sprinklers distribute the water over a specific area to control or

extinguish the fire. As the water flows through the system, an alarm is activated to indicate the

system is operating. Only those sprinklers immediately over or adjacent to the fire will operate,

minimizing water damage.

This kind of system may be installed structures not subject to freezing to automatically protect

the structure, contents, and/or personnel from loss due to fire. The structure must be substantial

enough to support the piping system filled with water.

In a normal set condition, the system piping is filled with water. When a fire occurs, the heat

operates a sprinkler allowing the water to flow. The alarm valve clapper is opened by the flow of

water allowing pressurized from the source of water to enter the alarm port to activate the

connected alarm devices. In case of using variable pressure water supply, the water flowing

through the alarm port overcomes the retard chamber’s drain restriction, filling the retard

chamber then activating the connected alarm devices. The alarms will continue to sound until

the flow of water is manually turned off.

The Workshop and the Store Buildings are protected with wet bulb sprinkler system. The

number and location of the sprinklers are going to be calculated considering the fire risk

classification of the building. The protected area for these buildings is 12 m2



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3.6. WATER DELUGE SYSTEM

The water deluge system is a fixed fire-protection system which totally floods an area with

pressurized water through a system of piping and open nozzles or sprinklers. The system piping

is empty until the deluge valve is activated by a hydraulic, pneumatic, electric or manual release

system. The deluge valve is activated by a release system (manual, fixed-temperature, rate-of-

temperature rise, radiation, smoke, or combustion gases, hazardous vapors, pressure

increase). When the system is tripped, water flows through all spray nozzles or sprinklers

simultaneously.

The deluge system can be activated by the following release systems:

- Hydraulic release.

- Pneumatic release.

- Electric release.

- Manual release.

The Oil Transformers and Cable Floors will be equipped with Deluge Water system and the

activation of the Deluge Water system at these areas will be triggered by Heat and/or Smoke

Detectors.

The sizing of the water deluge system for the Oil Transformers and Cable Floors is going to be

done considering the protection area of the Transformers and the area of the cable floors.

3.7. STORAGE TANKS COOLING SYSTEM

The storage tanks are equipped with spray system to provide cooling to the tank shell in case of

a fire in an adjacent tank. This spray system is intended to avoid the heating of the by reducing

the radiant effects from the adjacent burning tank by means of spray water. The large fuel

storage tanks are going to be equipped with such system and this system will be manually

activated in case of need.



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The spray system is used, typically only on the upper 3.7 to 7.4 m of shell and up to 3.7 m of

rundown is allowed on inclined and vertical surfaces. If there are wind girders at the top of the

tank, spray nozzles should be placed below each girder ring. The water spray protection is

designed to provide an application rate of 4.1 I/min/ m2 of protected surface. Generally, between

one-quarter to one-half of the total tank surface could be exposed when a fire is in an adjacent

tank. Since the exact location of the exposing fire, or the amount of liquid in the exposed tank,

may not be known before the fire occurs, total protection would require that the entire tank be

sprayed. However, water sprayed on surfaces that are not being exposed to fire is wasted and

takes resources from other fire suppression efforts. Sectionalization of fixed spray systems can

help ensure efficient use of fire water. In this sense LDO and Raw Crude Oil tanks surface

cooling system is divided into four sections to have efficient water usage.

3.8. FOAM SYSTEM

The foam system is primarily used in the Storage tanks. The system can be divided into two

subsections.

3.8.1 Storage Tanks Foam System

The Crude oil (Raw, Certification & Treated ) and Light Diesel Oil Fuel tanks in the fuel storage

area are protected by fixed foam installation system. Generated foam solution is discharged into

the storage tanks to cover the liquid surface in order to suppress the progressing fire.

The foam solution for the storage tanks are generated in a dedicated foam station and pumped

into the storage tank in case of demand. The foam station will include foam concentrate storage

tank, foam concentrate discharge pump, proportioner and necessary piping and cabling.

The sizing of the fixed foam system on the storage tanks are going to be done considering total

surface area for the tanks.

3.8.2 Tank Bund Area Foam System The bund area of the storage tanks is equipped with fixed discharge foam outlets to cover the

surface of the bund in case of a spill event.



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In addition to the fixed discharge foam outlets, the monitors can also provide foam solution to

specific dike surface on fire in case of need. It shall be noted that as per NFPA Code, one of the

installed two systems shall be in operation in case of spill event.

For this purpose a dedicate foam station is allocated to provide foam solution to the bund fixed

foam discharge outlets and Monitors located on the Bund Wall. The foam station will include

foam concentrate storage tank, foam concentrate discharge pump, proportioner and necessary

piping and cabling

3.8.3 Crude Oil Forwarding Pumps and Diesel Fire Pumps Foam System The protection of the crude oil forwarding pumps area and the diesel fire pump is provided by

means of fixed foam system installation. The system will include a piping system together with

foam nozzles (sprinklers) similar to a dry pipe installation.

The foam will be generated in a dedicated foam station including foam concentrate storage

tank, foam concentrate discharge pump, proportioner and necessary piping and cabling

The sizing of the system is done considering the protected area and the protected area is

defined by the size and dimensions of the trucks and the unloading island.

3.8.4 Truck Unloading Area Foam Sprinkler System

The protection of the truck unloading is provided by means of fixed foam system installation.

The system will include a piping system together with foam nozzles (sprinklers) similar to a dry

pipe installation. The foam supply will be done from the Foam Station dedicated for the Crude

Oil Forwarding Pumps station.



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4. FIRE FIGHTING SYSTEMS

4.1. GENERAL

The Power Plant fire fighting system consists of the following equipment:

- One fire water storage tank sized for 2-hours combined storage capacity based on

single largest contingency scenario

- Two Electrical Motor Driven Fire Water Pumps 2 x 50%

- Two Diesel Driven Fire Water Pumps 2 x 50 %

- One Jockey Pump

- Fire water ring mains with hydrants installed around the main areas (approximately 80

hydrants).

- Fixed water spray systems on the storage tanks.

- The storage tanks foam skid, consisting of one foam concentrate storage tank, foam

pumps, foam concentrate dosing valves and foam proportioner

- The foam/water solution header and distributions lines with foam discharge devices to

each storage tank.

- The Tank bund area foam skid, consisting of one foam concentrate storage tank, foam

pumps, foam concentrate dosing valves and foam proportioner

- The Crude Oil Forwarding pumps area foam skid, consisting of one foam concentrate

storage tank, foam pumps, foam concentrate dosing valves and foam proportioner.

- Standpipe system inside the buildings

- Wet Bulb sprinkler system inside Workshop and Store Buildings.

- Deluge Water System for Oil Transformers and Cable Floors

4.2. FIRE WATER SYSTEM

Under normal conditions the fire water system is pressurized by means of Jockey Pump of 30

GPM capacity. The fire water system is filled with pretreated water. Normally all motor operated

valves to the tank water spray systems are closed. The fire water pumps and fire water

replenishing pumps are not operating. Water losses due to a leak or accidental opening of a fire

hydrant with a flow rate less than 30 GPM, are handled by Jockey Pump.



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In case the pressure drops below the pre-set value of pressure switch the first electrical motor

driven fire pump starts immediately. Should the first electrical pump fail to start or the pressure

drops below a preset value of second pressure switch, the second electrical motor driven pump

starts immediately. The two diesel pumps are provided to provide 2x100% redundancy in case

of a failure in the electrical pumps.

The fire water pumps are operated automatically. The fire water ring mains are constantly kept

under pressure so hydrants, water monitors and water spray nozzles can be used practically

immediately.

The fixed water spray systems are actuated by an operator after detection of a fire on one of the

storage tanks. The actuation of the systems can be performed remotely or locally.

4.3. FIRE FOAM SYSTEM

4.3.1 Fire Foam System for Tank Fires One Dedicated foam concentrate storage and proportioning system is foreseen for the main fuel

storage tanks protection. Pre-mixed foam/ water solution will be pumped from this foam station

to the fixed foam deluge systems on each tank. Under normal conditions the foam solution

header is maintained empty. All motor operated valves to the foam discharge devices are

closed.

When a fire is detected, the water supply valve located on a branch from the fire main ring to the

foam proportioner is automatically opened and this results in starting-up of the electrical motor

driven foam pump. Should the pump fail to start, the second electrical driven foam pump starts.

Foam concentrate is supplied by a foam pump and injected into the foam proportioner. The

injection rate of the foam concentrate into the water stream can be adjustable between 3 to 4%.

The rate is automatically controlled by pressure control valve. Motor operated valves are

incorporated for remote selection of the storage tanks. Water is taken from the fire water ring

main and brought to the foam proportioner through the water supply line. The proportioner mix



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foam concentrate automatically with water, resulting in the foam solution. The foam solution is

led through the foam header to the several foam discharge devices. The foam supply valves to

the foam discharge devices on the storage tanks can be remotely or manually operated. The

refilling of the foam storage tank, the foam concentrate is discharged from barrels into the foam

concentrate storage tanks by a portable hand pump.

4.3.2 Fire Foam System for Pool Fires and Spills in Dike Areas The pool fire will be extinguished with Foam Pourers and Monitors. Dosing rate of foam

concentrate is 3%. This ratio is valid for foam concentrate type 1% x 3% AFFF. AFFF foam

selected must be suitable for use with aspirating nozzles.

In case of a spill and a fire within the dike area the foam discharge outlets or the monitors can

discharge foam on the specific fire or spill area in the dike area to cover the surface of the dike

with foam solution. Large dike areas shall be permitted to be subdivided to keep the total design

solution within practical limits as per NFPA 30.

Activation and operation of the foam discharge outlets and monitors is manual only. All these

kinds of the Fire Foam Monitors will be pre-adjusted to provide spray coverage of the bund area

(and possible pool fire). The monitors will be oscillating type with water pressure.

The foam discharge outlets will be located inside the dike wall and the spacing between the

discharge outlets shall be 18 meters as minimum.

4.3.3 Fire Foam System for Crude Oil Pumps and Unloading Station One Dedicated foam concentrate storage and proportioning system is foreseen for the

forwarding pumps, diesel fire pump and truck unloading area protection. Pre-mixed foam/ water

solution will be pumped from this foam station to the fixed foam deluge systems on area. Under

normal conditions the foam solution header is maintained empty. All motor operated valves to

the foam discharge devices are closed.



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4.4. SPRINKLER SYSTEM

The Workshop and the Store Buildings are protected with wet bulb sprinkler system. The

number and location of the sprinklers are going to be calculated considering the fire risk

classification of the building. The protected area for these buildings is 12m2.

The wet bulb sprinklers are activated in case of a heat occurrence under the sprinkler. The heat

flux promotes the expansion of the bulb thus breaks and releases fire water onto the fire. The

minimum protection area is 12m2 and the spacing of the sprinklers shall be done considering

the finished architectural design of the protected buildings.

Each building will be equipped with necessary activation station and valves where in case of a

water release event, the main fire valve shall permit the flow of fire water and generates an

overall alarm locally.

4.5. DELUGE WATER SYSTEM

Oil transformers and Cable Floors are protected by deluge system. The deluge valve will be

located outside the protected area, safe area, and the downstream of the deluge valve is dry

and open to atmosphere. Should a signal, either from smoke detector or heat detector, received

the deluge valve is actuated and releases the pressurized water upstream the valve and

discharges the water through all the nozzles.

Transformer protection shall provide complete water spray impingement on all exposed exterior

surfaces. Where there is insufficient space to install water spray nozzles underneath

transformers such that the water spray cannot directly impinge upon the bottom surfaces, it shall

be permitted to protect the surfaces underneath the transformer by horizontal projection or by

nozzles directed to cool the area below the transformer projections. The water shall be applied

at a net rate not less than 10.2 (l/min)/m2 of projected area of rectangular prism envelope for the

transformer and its appurtenances, and not less than 6.1 (l/min)/m2 on the expected non-

absorbing ground surface area of exposure. The water supply shall be capable of supplying

both the design flow rate and 946 l/min (for hose streams for a minimum duration of 1 hour.



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Water spray piping shall not be routed across the top of the transformer tank or across the face

of the transformer cabinet. Piping shall be permitted to be routed across the top of the

transformer tank or across the face of the transformer cabinet, where impingement cannot be

accomplished with any other configuration and the required distance from live electrical

components is maintained. Nozzles shall be positioned such that the water spray does not

envelop energized bushings or lightning arresters by direct impingement. The water discharge

quantity and sizing of the system is dependent on the protection area of the transformer.

Cable spreading rooms and cable tunnels will be protected with automatic sprinkler, water

spray, or automatic gaseous extinguishing systems. Automatic sprinkler systems should be

designed for a density of 12.2 l/min/m2 232 m2 or the most remote 30 m of cable tunnels up to

232 m2. Cable spreading rooms and cable tunnels should be provided with an early warning fire

detection system.

4.6. FIRE FIGHTING AT THE AUXILIARY FACILITIES

4.6.1 Process Areas A fire hazard for the flange connections is ignition of a relatively small amount of oil released via

a damaged seal. In case of fire, the fire fighting shall be done by means of hand held

extinguishers using dry chemicals. Additionally the fire water main ring with installed hydrants

will be laid near the Process Areas.

4.6.2 Control room Handheld fire extinguishers will be provided for fire fighting.

4.6.3 Laboratory Handheld fire extinguishers shall be installed in hazardous areas of the laboratory.

4.6.4 Electrical substations/switch house Handheld carbon dioxide extinguishers will be located near the entrances to buildings.

4.6.5 General Buildings and Facilities Fire protection of the general facilities is provided by means of stand pipe system and portable

extinguishers. External fire hydrants are provided connected to the fire water main.



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4.6.6 Metering Station Hydrants connected to the fire main ring provide fire protection of the metering station.



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5. FIRE FIGHTING DESIGN BASIS

5.1. APPLICATION RATES

The capacity of the fire system and the equipments are defined based on the application rates

for each type of Protection System.

5.1.1 Storage Tank Fixed Foam System The tanks protection will be surface application as per NFPA Section 5.2.5

The application rate for Surface Protection is

- 4,1 l/min/m2 for 30 minutes discharge duration

The maximum allowable spacing of the foam discharge outlets for the internal floating roofs is

24 meters.

TANK

DIAMETER

(m)

PERIMETER

(m) NUMBER of DISCHARGE OUTLET

Raw Crude Oil 45 135 6

Certification Crude Oil 19 60 3

Treated Crude Oil 30 94 4

The number of the foam discharge outlets in fixed roof tanks is determined considering the

diameter of the tank. Considering the LDO tank diameter as 43 meters and referring to NFPA

Section 5.2.5.2 the required number of foam discharge outlets is 4.

In addition to the fixed foam system, supplementary hose streams should also be considered as

per NFPA 11 Section 5. The foam from the hose streams shall be produced in place meaning

the foam will be produced within the handheld nozzles equipped with necessary educators. The

foam concentrate will be taken from the portable drums.



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5.1.2 Tank Dike Area Fixed Foam System The protection of the dike areas are achieved by fixed discharge outlets or fixed or portable

monitors.

The application rate for fixed discharge outlets and monitors is;

- 4,1 l/min/m2 for 30 minutes discharge duration for fixed discharge outlets as per NFPA

11 Section 5.7 or,

- 6,5 l/min/m2 for 30 minutes discharge duration for fixed discharge outlets as per NFPA

11 Section 5.7

Large dike areas shall be permitted to be subdivided to keep the total design solution within

practical limits as per NFPA 30. For outlets having discharge rates higher than 225 l/min, the

maximum distance between discharge outlets shall be 18 m.

The application area of the foam monitors are defined as ¼ of the total dike area under

coverage as the monitors have the flexibility of providing the foam to the specific on fire area

within the dike and this concept is supported by NFPA.

Considering the length and the width of the tank dikes the number of the calculated fixed

discharge outlets is as follows;

AREA

LENGTH

(m)

WIDTH

(m) NET AREA (m2)

NUMBER of DISCHAGE

OUTLETS

Raw Crude Oil

Dike 146 79 8400 24

Certification

Crude Oil Dike 34 66 1677 10

Treated Crude

Oil Dike 135 46 4797 20

Light Diesel Oil

Dike 148 77 8493 24



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5.1.3 Crude Oil Pumps and Unloading Station The protection of the Unloading Station is provided by a fixed foam system equipped with foam

nozzles covering the potential risk areas. The application rate for the Unloading Station is

- 4,1 l/min/m2 for 15 minutes NFPA 11 Section 5.6

The main protected area in the unloading station is the individual unloading bays. The

dimension of one unloading bay is 25 meters by 5 meters. The protected area is 250 m2

The same application rate is applicable for the crude oil forwarding pumps protection. The

dimension of the forwarding area is 50 meters by 5 meters. The total protected area is 250 m2

The same application rate is applicable for the diesel fire pumps. The dimension of the

protected area is 10 meters by 5 meters. The total protected area is 50 m2,

5.1.4 Oil Transformers Area The Oil Transformers within the plant are as follows;

TRANSFORMER DIMENSIONS (WxLxH)

Generator Step Up Transformer 13 x 13,5 x 5

Unit Auxiliary Transformer 5 x 4x 5,5

Station Transformer 7 x 5 x 6,5

Auto Transformer 5 x 10 x 7

According to NFPA15, section 7.4.4, the required water for the fire protection of the Oil

Transformers shall be applied at a net rate not less than 10,2 (l/min)/m2 of projected area of

rectangular prism envelope for the transformer and its appurtenances, and not less than 6,1

(l/min)/m2 on the expected non absorbing ground surface area of exposure



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5.1.5 Sprinklers The Store Building and Warehouse buildings are protected with wet bulb sprinkler system.

These buildings are classified as ordinary hazard buildings.

The protected area in ordinary hazard is 12 m2 and the application rate 8l/min/m2

5.1.6 Standpipe System and Hose Racks

Standpipe system is an arrangement of piping, valves, hose connections, and allied equipment

installed in a building or structure, with the hose connections located in such a manner that

water can be discharged in streams or spray patterns through attached hose and nozzles, for

the purpose of extinguishing a fire, thereby protecting a building or structure and its contents in

addition to protecting the occupants. This is accomplished by means of connections to water

supply systems or by means of pumps, tanks, and other equipment necessary to provide an

adequate supply of water to the hose connections. Each building in the Plant shall be provided

with a standpipe system complying with NFPA 14 and designed to give Class III service and the

main fire protection of the buildings will be provided by this mean. The minimum flow rate for the

hydraulically most remote standpipe shall be 1893 l/min. The minimum flow rate for additional

standpipes shall be 946 l/min per standpipe. One or more fire department connections will be

provided for each zone of each Class I or Class III standpipe system.

5.2. FIRE SCENARIOS

Identification of the possible fire scenarios is of major importance in order to define the water

and other agent demand and requirements. The below sections defines the possible fire

scenarios and the water and foam requirements for each specific case. It shall be noted that

the water and foam requirements are defined on the basis of the single largest contingency

occurring in one time.

5.2.1 Fire in Buildings Should a fire in Store or Warehouse building happens, the wet bulb sprinkler system will self

activate to suppress the area on fire. The protected area in ordinary hazard is 9m2 and the



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application rate 8l/min/m2. In addition to the activated sprinkler system it is considered that a

Hose Cabinet will be in operation.

In other Buildings the fire protection system consists of Standpipe system with connected Hose

Cabinets and in case of a fire water demand it is considered that the water application rate is

1893 l/min plus 946 l/min as per NFPA 14.

Building Protection Water

application rate Application

Duration Water demand

Store Building

Sprinkler + Hose

Cabinet 8l/min/m2 + 1893 l/min 60 118 m³/h

Workshop

Sprinkler + Hose

Cabinet 8l/min/m2 + 1893 l/min 60 118 m³/h

Gate House Hose Cabinet 1893 l/min 60 114 m³/h

Bachelor House Hose Cabinet 1893 l/min + 946 l/min 60 171 m³/h

Administration Building Hose Cabinet 1893 l/min + 1893 l/min 60 171 m³/h

Canteen Building Hose Cabinet 1893 l/min + 946 l/min 60 171 m³/h

Fire Fighting Building Hose Cabinet 1893 l/min + 946 l/min 60 171 m³/h

Black Start Diesel

Building Hose Cabinet 1893 l/min + 946 l/min 60 171 m³/h

Control Building Hose Cabinet 1893 l/min + 946 l/min 60 171 m³/h

Demin Plant Building Hose Cabinet 1893 l/min + 946 l/min 60 171 m³/h

Auxiliary Boiler House Hose Cabinet 1893 l/min + 946 l/min 60 171 m³/h

Chemical Laboratory Hose Cabinet 1893 l/min + 946 l/min 60 171 m³/h

GT Power Island

Electrical Building Hose Cabinet 1893 l/min + 946 l/min 60 171 m³/h

Electrical Substation Hose Cabinet 1893 l/min + 946 l/min 60 171 m³/h



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5.2.2 Fire in Oil Transformers The Oil Transformers are equipped with Water Deluge System to be activated in case of a

smoke or heat detection signal from the protected area.

Transformers shall be applied at a net rate not less than 10,2 (l/min)/m2 of projected area of

rectangular prism envelope for the transformer and its appurtenances, and not less than 6,1

(l/min)/m2 on the expected non absorbing ground surface area of exposure. Referring to NFPA

15 Section 7.4, the water supply shall be capable of supplying both the design flow rate and

946 L/min for hose streams for a minimum duration of 1 hour

For Generator Step Up Transformers; The dimensions are 13 x 13,5 x 5 (WxLxH)

• Water Demand on Transformer

(13 x 13,5 x 1 + 13,5 x 5 x 2 + 13 x 5 x 2) x 10,2 = 4493 l/min 270 m3/h

• Water Demand on Non Absorbing Ground Surface

(13 x 13,5) x 6,1 = 1071 l/min 65 m3/h

• Hose Stream Demand

57 m3/h

• Total Water Demand on Step Up Transformer

270 m3/h + 65 m3/h + 57 m3/h = 392 m3/h

For Station Auxiliary Transformers; The dimensions are 7 x 5 x 6,5 (WxLxH)


(7 x 5 x 1 + 7 x 6,5 x 2 + 5 x 6,5 x 2) x 10,2 = 1948 l/min 117 m3/h


(7x 5) x 6,1 = 213 l/min 13 m3/h


57 m3/h



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117 m3/h + 13 m3/h + 57 m3/h = 187 m3/h

For Unit Auxiliary Transformers; The dimensions are 5 x 4 x 5,5 (WxLxH)


(5 x 4 x 1 + 5 x 5,5 x 2 + 4 x 5,5 x 2) x 10,2 = 1213 l/min 73 m3/h


(5 x 4) x 6,1 = 122 l/min 7 m3/h


57 m3/h


73 m3/h + 7 m3/h + 57 m3/h = 137 m3/h

For Unit Auxiliary Transformers; The dimensions are 5 x 10 x 7 (WxLxH)


(5 x 10 x 1 + 5 x 7 x 2 + 10 x 7 x 2) x 10,2 = 1548 l/min 93 m3/h


(5 x 10) x 6,1 = 305 l/min 18,3 m3/h


57 m3/h


93 m3/h + 18,3 m3/h + 57 m3/h = 169 m3/h

5.2.3 Fire in Crude Oil Forwarding Pumps The Crude Oil forwarding pumps area is equipped with fixed foam system consisting of relevant

pipe work and foam nozzles. The application rate for the Crude Oil Forwarding Pumps Station is

4,1 l/min/m2 for 15 minutes and the area protected is 250 m2. In case of a fire in the crude oil



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forwarding station area it is considered that the nearest Hydrant will also be in operation in

addition to the fixed foam system.

With this consideration

• Foam Solution Demand

4,1 x 250 x 15 = 15.4 m3 within 15 minutes.

• Foam Concentrate Demand

15.4 m3 x 0,03 = 462 liters

• Water Demand by Foam System

15.4 m3 x 0,97 = 14.9 m3

• Water Flowrate to Foam System

14.9 m3x4 = 60 m3/h

• Total Water Flowrate

60 + 114 = 174 m3/h

5.2.4 Fire in Diesel Fire Pump The Diesel Fire pumps area is equipped with fixed foam system consisting of relevant pipe work

and foam nozzles. The application rate for the Diesel Fire Pumps Station is 4,1 l/min/m2 for 15

minutes and the area protected is 50 m2. In case of a fire in the Diesel Fire Pumps area it is

considered that the nearest Hydrant will also be in operation in addition to the fixed foam

system.



4,1 x 50 x 15 = 3.1 m3 within 15 minutes.


3.1 m3 x 0,03 = 93 liters


3.1 m3 x 0,97 = 3 m3


3 m3 x 4 = 12 m3/h




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12 + 114 = 126 m3/h

5.2.5 Fire in Truck Unloading Station The Truck Unloading Station area is equipped with fixed foam system consisting of relevant

pipe work and foam nozzles. The application rate for the Truck Unloading Station is 4,1 l/min/m2

for 15 minutes and the area protected is considered to be 2 bays simultaneously which is 250

m2. In case of a fire in the Truck Unloading area it is considered that the nearest two Hydrant will

also be in operation in addition to the fixed foam system.



4,1 x 250 x 15 = 15,4 m3 within 15 minutes.


15,4 m3 x 0,03 = 462 liters


15,4 m3 x 0,97 = 15 m3


15 m3 x 4 = 60 m3/h


60 + 2 x 114 = 288 m3/h

5.2.6 Fire in Raw Crude Oil Tank 1 (West Tank) In case of a fire in the Raw Crude Oil tank the following systems shall be in operation

simultaneously;

• Surface Protection of the tank for 30 minutes application as per NFPA 11 Section 5.2

• Spray shell cooling of the adjacent storage tanks for 60 minutes application as per API

2030

• 3 Hose Streams (189 l/min) for 30 minutes application as per NFPA 11 Section 5.9



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The dimensions of the Raw Crude Oil Tank;

Diameter: 45 meters

Height: 18 meters

Tank Roof Area: 1590 m2

Tank Shell Surface Area: 2543 m2

Foam Dam Width: 610 millimeters as per NFPA 11 Section 5.3

Foam Dam Area: 85 m2

Foam Solution Application Rate: 4,1 l/min/m2 for 30 minutes discharge duration as Per NFPA

11 Section 5.2

Foam Solution Demand on Surface : 4,1 x 1590 x 30 = 195570 l 196 m3 in 30 minutes

Foam Solution Flowrate: 196 x 2 = 392 m3/h

Water Demand: 392 x 0,97 = 380 m3/h

Foam Concentrate Demand: 196 x 0,03 = 5880 l

Foam Solution Demand on Hose Stream: 189 x 3 x 30 = 17010 l 17 m3 in 30 minutes

Foam Solution Flowrate: 17 x 2 = 34 m3/h (this foam solution is produced in place by hand held

nozzles)


Foam Concentrate Demand: 17 x 0,03 = 510 l (total for 3 hose streams, 170 liters for each hose

stream, this foam is stored in portable foam concentrate drums).

Total Foam Solution Demand : 196 + 17 = 213 m3

Total Foam Concentrate Demand : 5880 + 510 = 6390 liters

Total Water Flowrate for Foam : 380 + 34 = 414 m3/h

In addition to the above foam system, the spray cooling systems of the following tanks are

activated;

- Raw Crude Oil Tank (East)

- LDO Storage Tank (West)

- LDO Storage Tank (East)



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The cooling water requirements for above tanks are;

LDO Tanks

The dimensions of the LDO Tank;

Diameter: 43 meters

Height: 18 meters

Total Surface Area 2431 m2

Each Quarter Surface Area: 608 m2

Raw Crude Oil Tanks


Diameter: 45 meters

Height: 18 meters



The water application rate is of 4.1 I/min/ m2 of protected surface as per API 2030 and the

surface exposed to radiant heat is subject to spray cooling. In this case the cooling water

demand for the tanks exposed to heat in case of Raw Crude Oil Tank (West) Fire;

TANK # Quarter Area (m2) Water application rate

(l/min/m2)

Water demand (m³/h)

LDO (West) 2 1216 4,1 299 m³/h

LDO (East) 2 1216 4,1 299 m³/h

Raw Crude Oil (East) 2 1272 4,1 313 m³/h

TOTAL 911 m³/h

The summary of the total foam and water demands in case of Raw Crude Oil Tank (West) fire is



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Total Foam Solution Demand 213 m3

Total Foam Concentrate Demand 6390 liters

Water Flow Rate For Foam: 414 m3/h

Spray Cooling Water Demand: 911 m³/h

Total Water Demand (Load on Fire Pump) 1325 m³/h

5.2.7 Fire in Raw Crude Oil Tank 2 (East Tank) In case of a fire in the Raw Crude Oil tank the following systems shall be in operation

simultaneously;

• Surface Protection of the tank for 30 minutes application as per NFPA 11 Section 5.2


2030

• 3 Hose Streams (189 l/min) for 30 minutes application as per NFPA 11 Section 5.9


Diameter: 45 meters

Height: 18 meters





Foam Solution Application Rate: 4,1 l/min/m2 for 30 minutes discharge duration as Per NFPA

11 Section 5.2







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nozzles)



stream, this foam is stored in portable foam concentrate drums).

Total Foam Solution Demand : 196 + 17 = 213 m3

Total Foam Concentrate Demand : 5880 + 510 = 6390 liters

Total Water Flowrate for Foam : 380 + 34 = 414 m3/h


activated;

- Raw Crude Oil Tank (West)



- Certification Tank (North)

- Certification Tank (South)


LDO Tanks


Diameter: 43 meters

Height: 18 meters



Raw Crude Oil Tanks


Diameter: 45 meters

Height: 18 meters



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Certification Crude Oil Tanks

The dimensions of the Certification Crude Oil Tank;

Diameter: 19 meters

Height: 14 meters





demand for the tanks exposed to heat in case of Raw Crude Oil Tank (East) Fire;

TANK # Quarter Area (m2)

Water application rate

(l/min/m2) Water demand

(m³/h)

LDO (West) 2 1216 4,1 299 m³/h LDO (East) 2 1216 4,1 299 m³/h

Raw Crude Oil (West) 2 1272 4,1 313 m³/h Certification Tank (North) 2 418 4,1 103 m³/h

Certification Tank (South) 2 418 4,1 103 m³/h

TOTAL 1117 m³/h

The summary of the total foam and water demands in case of Raw Crude Oil Tank (East) fire is





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5.2.8 Fire in LDO Tank 1 (West Tank) In case of a fire in the LDO tank the following systems shall be in operation simultaneously;

• Surface Foam Protection of the tank for 30 minutes application as per NFPA 11 Section

5.4


2030

• 3 Hose Streams for 30 minutes application as per NFPA 11 Section 5.9


Diameter: 43 meters

Height: 18 meters

Surface Area: 1452 m2

Foam Solution Application Rate on Surface: 4,1 l/min/m2 for 30 minutes discharge duration as

Per NFPA Section 5.2.5

Foam Solution Demand on Surface: 4,1 x 1452 x 30 178596 l 179 m3 in 30 minutes

Foam Solution Flowrate: 358 m3/h





nozzles)



stream, this foam is stored in portable foam concentrate drums.



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Total Foam Solution Demand: 179 + 17 = 196 m3

Total Foam Concentrate Demand: 5370 + 510 = 5880 liters

Total Water Flowrate for Foam: 348 + 34 = 382 m3/h


activated;





LDO Tanks


Diameter: 43 meters

Height: 18 meters



Raw Crude Oil Tanks


Diameter: 45 meters

Height: 18 meters



The water application rate is of 4.1 I/min/m2 of protected surface as per API 2030 and the


demand for the tanks exposed to heat in case of LDO Tank (West) Fire;



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(l/min/m2)


LDO (East) 2 1216 4,1 299 m³/h Raw Crude Oil (East) 2 1272 4,1 313m³/h Raw Crude Oil (West) 2 1272 4,1 313 m³/h

TOTAL 925m³/h

The summary of the total foam and water demands in case of LDO Tank (West) fire is






5.2.9 Fire in LDO Tank 2 (East Tank) In case of a fire in the LDO tank the following systems shall be in operation simultaneously;


5.4


2030



Diameter: 43 meters

Height: 18 meters

Surface Area: 1452 m2

Foam Solution Application Rate on Surface: 4,1 l/min/m2 for 30 minutes discharge duration as

Per NFPA Section 5.2.5



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Foam Solution Demand on Surface: 4,1 x 1452 x 30 178596 l 179 m3 in 30 minutes

Foam Solution Flowrate: 358 m3/h





nozzles)





Total Foam Concentrate Demand: 5370 + 510 = 5880 liters



activated;




- Certification Tank (South)


LDO Tanks


Diameter: 43 meters

Height: 18 meters





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Raw Crude Oil Tanks


Diameter: 45 meters

Height: 18 meters





Diameter: 19 meters

Height: 14 meters





demand for the tanks exposed to heat in case of LDO Tank (East) Fire;


(l/min/m2)


LDO (West) 2 1216 4,1 299 m³/h Raw Crude Oil (East) 2 1272 4,1 313 m³/h

Raw Crude Oil (West)

2 1272 4,1 313 m³/h

Certification Tank (South)

2 418 4,1 103 m³/h

TOTAL 1028 m³/h



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The summary of the total foam and water demands in case of LDO Tank (East) fire is






5.2.10 Fire in Certification Tank 1 (North Tank)

In case of a fire in the Certification Crude Oil tank the following systems shall be in operation

simultaneously;


5.2


2030



Diameter: 19 meters

Height: 14 meters

Tank Roof Area: 283.5 m2



Foam Dam Area: 35.3 m2

Foam Solution Demand on Surface : 4,1 x 283.5 x 30 = 34870.5 l 35 m3 in 30 minutes


Water Demand: 70 x 0,97 = 67.9 m3/h

Foam Concentrate Demand: 34870.5 x 0,03 = 1046 l



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nozzles)


Foam Concentrate Demand: 3780 x 0,03 = 113.5 l (total for 1 hose stream, 113.5 liters for hose



Total Foam Concentrate Demand: 1046 + 113.5 = 1160 liters

Total Water Flowrate for Foam: 68 +12 = 80 m3/h


activated;


- Certification Storage Tank (South)

- Treated Crude Oil Storage Tank (East)


Raw Crude Oil Tanks


Diameter: 45 meters

Height: 18 meters





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Diameter: 19 meters

Height: 14 meters



Treated Crude Oil Tanks


Diameter: 30 meters

Height: 16 meters





demand for the tanks exposed to heat in case of Certification Oil Tank (North) Fire;


(l/min/m2)


Raw Crude Oil (East) 2 1272 4,1 313 m³/h Certification Tank (South) 2 418 4,1 103 m³/h

Treated Tank (West) 2 754 4,1 186 m³/h TOTAL 602 m³/h

The summary of the total foam and water demands in case of Certification Tank (North) fire is








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5.2.11 Fire in Certification Tank 2 (South Tank) In case of a fire in the Certification Crude Oil tank the following systems shall be in operation

simultaneously;


5.2


2030



Diameter: 19 meters

Height: 14 meters

Tank Roof Area: 283.5 m2



Foam Dam Area: 35.3 m2

Foam Solution Demand on Surface : 4,1 x 283.5 x 30 = 34870.5 l 35 m3 in 30 minutes



Foam Concentrate Demand: 34870.5 x 0,03 = 1046 l



nozzles)


Foam Concentrate Demand: 3780 x 0,03 = 113.5 l (total for 1 hose stream, 113.5 liters for hose




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Total Foam Concentrate Demand: 1046 + 113.5 = 1160 liters

Total Water Flowrate for Foam: 68 +12 = 80 m3/h


activated;


- Certification Storage Tank (North)




Raw Crude Oil Tanks


Diameter: 45 meters

Height: 18 meters



LDO Tanks


Diameter: 43 meters

Height: 18 meters







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Diameter: 19 meters

Height: 14 meters





Diameter: 30 meters

Height: 16 meters





demand for the tanks exposed to heat in case of Certification Oil Tank (South) Fire;


(l/min/m2)


Raw Crude Oil (East) 2 1272 4,1 313 m³/h Certification Tank (North) 2 418 4,1 103 m³/h

Treated Tank (West) 2 754 4,1 186 m³/h

LDO (West) 2 1216 4,1 299 m³/h TOTAL 901 m³/h

The summary of the total foam and water demands in case of Certification Tank (South) fire is








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5.2.12 Fire in Treated Tank (West Tank) In case of a fire in the Treated Crude Oil tank the following systems shall be in operation

simultaneously;


5.2


2030


The dimensions of the Treated Crude Oil Storage Tank;

Diameter: 30 meters

Height: 16 meters









Foam Solution Demand on Hose Stream: 189 x 2 x 30 = 11340 l 11.34 m3 in 30 minutes

Foam Solution Flowrate: 11.34 x 2 = 22.7 m3/h (this foam solution is produced in place by hand

held nozzles)

Water Demand: 22.7 x 0,97 = 22 m3/h

Foam Concentrate Demand: 11340 x 0,03 = 340 l (total for 2 hose streams, 170 liters for each

hose stream, this foam is stored in portable foam concentrate drums.

Total Foam Solution Demand: 87 + 11.5= 98.5 m3



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Total Foam Concentrate Demand: 2609 + 340= 2949 liters



activated;

- Certification Storage Tank (North)

- Certification Storage Tank (South)

- Treated Crude Oil Storage Tank (Mid)




Diameter: 19 meters

Height: 14 meters





Diameter: 30 meters

Height: 16 meters





demand for the tanks exposed to heat in case of Treated Oil Tank (West) Fire;



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(l/min/m2)


Certification Tank (North) 2 418 4,1 103 m³/h Certification Tank (South) 2 418 4,1 103 m³/h

Treated Tank (Mid) 2 754 4,1 186 m³/h TOTAL 392 m³/h

The summary of the total foam and water demands in case of Treated Oil Tank (West) fire is

Total Foam Solution Demand 98.5 m3





5.2.13 Fire in Treated Tank (Mid Tank) In case of a fire in the Treated Crude Oil tank the following systems shall be in operation

simultaneously;


5.2


2030


The dimensions of the Treated Crude Oil Tank ;

Diameter: 30 meters

Height: 16 meters






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held nozzles)








activated;


- Treated Crude Oil Storage Tank (West)




Diameter: 30 meters

Height: 16 meters





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demand for the tanks exposed to heat in case of Treated Oil Tank (Mid) Fire;


(l/min/m2)


Treated Tank (East) 2 754 4,1 186 m³/h Treated Tank (West) 2 754 4,1 186 m³/h

TOTAL 372 m³/h

The summary of the total foam and water demands in case of Treated Oil Tank (Mid) fire is






5.2.14 Fire in Treated Tank (East Tank) In case of a fire in the Treated Crude Oil tank the following systems shall be in operation

simultaneously;


5.2


2030


The dimensions of the Treated Crude Oil Tank ;

Diameter: 30 meters

Height: 16 meters



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held nozzles)








activated;

- Treated Crude Oil Storage Tank (Mid)




Diameter: 30 meters

Height: 16 meters




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demand for the tanks exposed to heat in case of Treated Oil Tank (East) Fire;


(l/min/m2)


Treated Tank (Mid) 2 754 4,1 186 m³/h TOTAL 186 m³/h

The summary of the total foam and water demands in case of Treated Oil Tank (East) fire is






5.2.15 Fire in Raw Crude Tanks Dike Area In case of a fire in the Raw Crude Oil tanks dike area the following systems shall be in operation

simultaneously;

• Fixed Foam Discharge Outlets or, Monitors for the dike area

• Spray Cooling of Tanks in Dike (surfaces subject to radiant heat)

The application rate for the fixed foam discharge outlets protecting the dike area is 4,1 l/min/m2

for 30 minutes discharge duration for fixed discharge outlets as per NFPA 11 Section 5.7. Raw

crude oil tank dike areas are subdivided into two sections.



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The application rate for monitors protecting the dike area is 6,5 l/min/m2 for 30 minutes

discharge duration for monitors as per NFPA 11 Section 5.7

For the fixed discharge outlets;

The total raw crude oil tank dike area: 8400 m2

Area of one section is: 4200 m2

Foam Solution Demand on Dike: 4200 x 4,1 x 30 = 516600 l 516.6 m3 in 30 minutes

Foam Solution Flowrate: 516.6 x 2 = 1033.2 m3/h

Water Demand: 1033.2 x 0,97 = 1002.2 m3/h

Foam Concentrate Demand: 516600 x 0,03 = 15498 lt

Considering that there will be 24 fixed foam discharge outlets the flow rate of each individual

fixed discharge outlet is 43 m3/h

For the Foam Monitors

The total raw crude oil tank dike area: 8400 m2

Area of one section (considering ¼ of total dike area): 2100 m2

Foam Solution Demand on Dike: 2100 x 6,5 x 30 = 409500 l 410 m3 in 30 minutes




In case of a spill fire event it is considered that 3 monitors will be simultaneous operation to

cover the above calculated demand thus each monitor will be 273.5 m3/h foam solution

capacity. The total number of the monitors is defined as 12 for Raw Crude Oil tank dike area.

In case of dike fire in raw crude oil tank also the tank spray cooling systems of the raw crude oil

tanks will be in operation to cover the radiant heat surface of the raw crude oil tanks.

The Water Demand on two Raw Crude Oil Tank Surface Cooling : 626 m3/h



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Total Fire Water Demand on Raw Crude Oil Tank Dike Fire: 1002 m3/h + 626 m3/h = 1628 m3/h

5.2.16 Fire in LDO Tanks Dike Area

In case of a fire in the LDO tanks dike area the following systems shall be in operation

simultaneously;




for 30 minutes discharge duration for fixed discharge outlets as per NFPA 11 Section 5.7. LDO

tank dike areas are subdivided into two sections.




The total LDO tank dike area: 8493 m2




Water Demand: 1046 x 0,97 = 1015 m3/h






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The total LDO tank dike area: 8493 m2

Area of one section (considering ¼ of total dike area): 2124 m2






cover the above calculated demand thus each monitor will be 267 m3/h foam solution capacity.

The total number of the monitors is defined as 12 for LDO tank dike area.

In case of dike fire in LDO tanks, also the tank spray cooling systems of the LDO tanks will be in

operation to cover the radiant heat surface of the LDO tanks.

The Water Demand on two LDO Tank Surface Cooling : 598 m3/h

Total Fire Water Demand on LDO Tank Dike Fire: 1015 m3/h + 598 m3/h = 1613 m3/h

5.2.17 Fire in Certification Tanks Dike Area In case of a fire in the Certification tanks dike area the following systems shall be in operation

simultaneously;




for 30 minutes discharge duration for fixed discharge outlets as per NFPA 11 Section 5.7.



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The total Certification tank dike area: 1677 m2









The total Certification tank dike area: 1677m2

Area of one section (considering ½ of total dike area): 839 m2







The total number of the monitors is defined as 4 for Certification tank dike area.

In case of dike fire in Certification tanks, also the tank spray cooling systems of the Certification

tanks will be in operation to cover the radiant heat surface of the Certification tanks.

The Water Demand on two Certification Tank Surface Cooling : 206 m3/h

Total Fire Water Demand on Certification Tank Dike Fire: 400 m3/h + 206 m3/h = 606 m3/h



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5.2.18 Fire in Treated Tanks Dike Area In case of a fire in the Treated tanks dike area the following systems shall be in operation

simultaneously;




for 30 minutes discharge duration for fixed discharge outlets as per NFPA 11 Section 5.7.




The total Treated tank dike area: 4797 m2


Foam Solution Demand on Dike: 1599 x 4,1 x 30 = 196677 l 197m3 in 30 minutes







The total Treated tank dike area: 4797 m2

Area of one section (considering 1/3 of total dike area): 1599 m2


Foam Solution Flowrate: 312 x 2 =624 m3/h



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Water Demand:624 x 0,97 = 605 m3/h




The total number of the monitors is defined as 12 for Treated tank dike area.

In case of dike fire in Treated tanks, also the tank spray cooling systems of the Treated tanks

will be in operation to cover the radiant heat surface of the Treated tanks.

The Water Demand on two Treated Tank Surface Cooling : 372 m3/h

Total Fire Water Demand on Certification Tank Dike Fire: 382 m3/h + 372 m3/h = 754 m3/h

5.3. WATER DEMAND

Based on the calculation on Section 5.2, the single largest Contingency occurs in case of a fire

is the case of Dike Fire in the CO Storage Tank Dike. The water demand in this case is 1628 m3/h (7168 GPM).

5.4. FOAM DEMAND

The foam solution is prepared in three different foam stations as per the Technical Specification

requirements and the stations are as follows;

- Foam Station 1 for Crude Oil Forwarding Skid and Diesel Fire Pump and Truck

Unloading,

- Foam Station 2 for Fixed Foam System on Storage Tanks

- Foam Station 3 for Fixed Foam Discharge Outlets for Dikes and Monitors



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Reviewing the calculations and results in Section 5.2 the following are the capacities of each

individual foam Station

5.4.1 Foam Station 1

The capacity of the Foam Station 1 is determined in case of a fire in the Truck Unloading Area

or fire in the Crude Oil Forwarding Pumps area. In this case;

• Foam Solution Demand: 15,4 m3 within 15 minutes.

• Foam Concentrate Demand: 462 liters

• Water Demand by Foam System: 15 m3

• Water Flowrate to Foam System: 60 m3/h

• The foam station capacity will be to produce 62 m3/h foam solution (2x100%

Proportioners)

• The foam concentrate storage tank capacity is 500 liters (1x100%)

• The foam concentrate pump capacity is 2 m3/h (2x100% Electrical Driven Pump)

5.4.2 Foam Station 2 The capacity of the Foam Station 2 is determined in case of a fire in one Raw Crude Oil Tan. In

this case;

• Foam Solution Demand: 196 m3 within 30 minutes.





Proportioners)



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• The foam concentrate pump capacity is 11,8 m3/h (2x100% Electrical Driven Pump)

5.4.3 Foam Station 3 The capacity of the Foam Station 2 is determined in case of a fire in one LDO Tank Dike. In this

case;

• Foam Solution Demand: 523 m3 within 30 minutes.





Proportioners)


• The foam concentrate pump capacity is 30 m3/h (2x100% Electrical Driven Pump)

1004 000 --- ss 021- fire fighting system philosopy and design basis rev

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