presentation dcp(revised)

DISTRICT COOLING PLANT,the CURVE

DATE: 8TH FEBRUARY 2007

DISTRICT COOLING PLANT, the CURVE

Owner :Boustead Linear Corporation Sdn

Bhd

Location :Rooftop of the Curve,MutiaraDamansara

Peak Cooling Capacity :7,600 tonsStorage Capacity :25,920 tons-hourWater supply/return temperatures

:1.1°C / 12.2°C

SECRETARY(Salehah Bt. Md. Saad)

COOLING TECHNOLOGIST(Martin Lee)

ORGANISATION CHART FOR BOUSTEAD LINEAR CORPORATION SDN BHD DCP PLANT AT THE CURVE, MUTIARA DAMANSARA

TECHNICIAN Level 1

(Norshamsul Harmizi B. Mohd Nuji)

TECHNICIAN Level 2

(Azizul Azry B. Mohd. Ali)

TECHNICIAN Level 1

(Ahmad Syakri B. Azizan)

BOUSTEAD LINEAR CORPORATION SDN BHD

SENIOR TECHNICIAN(Daniel) SHIFT SUPERVISOR

(Wan Adnan B. Wan Mamat)

FACILITY MANAGER(LINEAR)

SHIFT SUPERVISOR(Mohd Zul B. Hj. Ismail)

SHIFT 1 8.00AM to 4.00PM

SHIFT 2 4.00PM to 12.00AM

SHIFT 3 12.00MN to 8.00AM

TECHNICIAN Level 2

(Thavaselvan A/ L Dorairaj)

PLANT MANAGER(Rosdalina Sumeri Bt. Deraman)

HT CHARGEMAN

WORK FORCE STRENGTH:BUDGETED : 11ACTUAL (2007) : 11

APPOINTED SUPERVISING ENGINEER

(MNE Engineering Sdn. Bhd.)

Updated 02/ 03/ 07 c: DCP curve\ DCP_private\ ORGANIZATIONCHART\ org2007

What is District Cooling Plant?

A district cooling plant distributes chilled water from a central plant to individual buildings through a network of underground pipes.

A single district cooling plant can satisfy the cooling needs of several buildings and customers.

Centralized production of cooling energy is more environmentally-friendly and cost-effective than distributed building-specific cooling. In addition, centralization improves operational reliability.

CUSTOMER BUILDINGS

THE CURVE : 5,500 RT

CINELEISURE : 1,400 RT

THE ROYALE BINTANG HOTEL : 340 RT

District Cooling Plant Facilities

VIEW OF PLANT - INTERIOR

CHILLERS

BASE CHILLERS : 2 nos.Capacity : 850 RT

DUAL EVAPORATOR CHILLERS : 3 nos.Capacity : Chilled water – 1224 RTGlycol chilling – 926 RT

PUMPS

COOLING TOWER - EXTERIOR(FRONT VIEW)

COOLING TOWER - EXTERIOR( TOP VIEW)

HEAT EXCHANGER (HEX)

Heat Exchangers Plates Heat Exchangers (after insulated)

– located at every Customer’s HEX Room

ICE TANK - EXTERIOR (FRONT VIEW)

ICE COIL - EXTERIOR

ICE THERMAL STORAGE

Ice Thermal Storage is the process of generating and storing ice at night to reduce kW demand and energy usage for cooling a building the next day.

ICE BUILD ON ICE COIL

ICE COIL - EXTERIOR

Why Use Ice Thermal Storage Benefits

Night time use - Lower energy rate at night.

Limit daytime peak demand charge Reduces kW demand Reduces electrical equipment,

distribution size and cost Reduce first cost (equipment cost and

installation) Reduces operating cost

Why Use Ice Thermal Storage Flexibility

Instead of an instantaneous cooling plant designed to handle the peak load, Ice Storage can be designed to operate at optimum efficiency at full and partial load conditions.

Ice Thermal StorageEXTERNAL MELT SYSTEM

-0.5

0.5

1.5

2.5

3.5

4.5

5.5

0 25 50 75 100

% of Ice Melted

LWT

(C)

Ice Thermal StorageEXTERNAL MELT SYSTEM

District Cooling Plant Systems

Chilled Water Supply Cycle

Water is chilled and then flows to

ice tanks

The water temperature is cooled down further through the external melt process and distributed to the

heat exchangers

The warm water from heat exchangers flows return to the plant’s chillers

Ice Building Process

A brine solution consisting of water and Mono Ethylene Glycol ( anti freeze agent ) is used to build ice.

This brine solution is circulated through the ice coils at the tank at negative temperatures.

The return brine solution is chilled again by the chillers and the cycle continues until the ice build is fully completed.

Ice will form in a cylindrical shape at the outer layer of the coils.

CONTROL SYSTEM

CONTROL SYSTEM

CONTROL SYSTEM

Risk ManagementRisk Management

RISK MANAGEMENT - SAFETYSPECIFIC

RISKCAUSES CONSEQUENCE

SPOSITIVE CONTROLS

INHERENT

RISK1

.FIREOUTBREAKIN MALL / PLANT/ROOFTOPAREA

Electrical short-circuit

Negligence of smokers

Poor maintenance of machineries / equipments

Not complying with safety rules & regulations

Shopping mall business interruption

Injury to public

Damage to property

Disruption to operation

Damage to equipments

Damage to documents

Constant patrol and surveillance in the mall and rooftop area by security

Regular and consistent monitoring of the plant area by DCP staff.

Conduct regular inspection on all equipments

Filing master copy of documents at LINEAR HQ office

LOW

RISK MANAGEMENT - SAFETY SPECIFIC

RISKCAUSES CONSEQUENCE

SPOSITIVE CONTROLS

INHERENT

RISK2. UN-

AUTHORIZEDACCESS

Lack of surveillance

Unlocked Doors

CCTV cameras not functional

Alarms system not turned on

Equipment sabotage

Possible injury to staff / intruder

Disruption to operations

Ensuring doors are locked at all times

Consistently monitoring by CCTV cameras

Patrol in the plant area by DCP staff

Ensure the access system and burglar alarm in good order

LOW

RISK MANAGEMENT - OPERATIONSPECIFIC

RISKCAUSES CONSEQUENCE

SPOSITIVE CONTROLS

INHERENT

RISK1

.POWERSUPPLYFAILURE

TNB supply failure

Electrical panels trip

Preventive maintenance schedule power shutdown

Disruption to operation

No supply of chilled water to customer buildings

To acquire a generator set standby unit for temporary power supply

(at least for Hotel

cooling load)

MODERATE

RISK MANAGEMENT - OPERATIONSPECIFIC

RISKCAUSES CONSEQUENCES POSITIVE

CONTROLSINHERENT RISK

2.

CHILLER FAILURE

Mechanical failure

Compressor failure

Electrical wiring / components failure

Disruption to operation

Unable to achieve cooling load demand by customer (if more than 1 no. Chiller fails at same time)

Unable to build ice sufficiently (if failure of Glycol Chiller)

Contact the contractor immediately if our Technician fail to rectify the problem (within half an hour)

Ensure proper preventive maintenance performed

Constant monitoring of the operation

MODERATE

RISK MANAGEMENT - OPERATIONSPECIFIC

RISKCAUSES CONSEQUENCE

SPOSITIVE

CONTROLSINHERENT RISK

3.

PUMP FAILURE

Mechanical failure

Motor failure

Electrical wiring / components failure

Disruption to operation

Unable to run corresponding chiller (if chiller pump fails)

Contact the contractor immediately if our Technicians fail to rectify the problem

Ensure proper preventive maintenance performed

Constant monitoring of the operation Ensure standby equipments in available status

MODERATE

RISK MANAGEMENT - OPERATIONSPECIFIC

RISKCAUSES CONSEQUENCE

SPOSITIVE

CONTROLSINHERENT RISK

4.

VALVES FAILURE

Actuator failure Pneumatic air failure Electrical wiring failure Air compressor failure

Disruption to operation Unable to control water flow and temperature

By-pass automatic mode i.e manually operate the valves. Constant monitoring of the state of operation

MODERATE

5.

AIR COMPRESSOR FAILURE

Mechanical failure Motor failure Electrical wiring / components failure

Disruption to operation

Ensure proper preventive maintenance performed Constant monitoring of the state of operation

MODERATE

RISK MANAGEMENT - OPERATIONSPECIFIC

RISKCAUSES CONSEQUENCE

SPOSITIVE

CONTROLSINHERENT RISK

6. COOLING TOWER FAILURE

Mechanical failure

Motor failure

Electrical wiring / components failure

Insufficient water supply

Disruption to operation Unable to operate chiller in normal mode (if more than 2 nos. Cooling Tower cells fail at the same time) Unable to achieve cooling load demand by customer (if more than 1 no. Chiller unable to operate) Unable to build ice sufficiently (if problem occurs during night operation )

Ensure proper preventive maintenance performed

Constant monitoring of the state of operation

MODERATE

RISK MANAGEMENT - OPERATIONSPECIFIC

RISKCAUSES CONSEQUENCE

SPOSITIVE

CONTROLSINHERENT RISK

7.

CONTROL SYSTEM FAILURE

Electrical failure

Hardware failure

Software failure

Disruption to operation

Unable to control and monitor the system.

Unable to achieve cooling load demand accurately.

Ensure back up power system is functional

Ensure back up computer is functional

Control system contractor on 24 hrs standby for emergency call

MODERATE

SUMMARY

SUMMARY OF CHILLED WATER REVENUE YEAR 2006

0

100

200

300

400

500

600

700

800

900

J an Feb Mac Apr May J une J uly Aug Sept Oct Nov DecMonth

Amou

nt (R

M '0

00)

The Curve HotelCineleisure Grand total

AverageThe Curve: RM 565,675.35Hotel: RM 47,076.81Cineleisure: RM 103,091.73

THE ENDTHE END

Prepared by :Prepared by :DCP Plant TeamDCP Plant TeamThe Curve, Mutiara The Curve, Mutiara DamansaraDamansara