cdp hospital service design report pdf
TRANSCRIPT
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Building services design of the Hospital
Introduction
In this project, we are proposing to construct a new hospital in this area. This will be athree story building. But we are keeping provision for future development up to five
stories.
This hospital is consists of many features that are very useful for the villagers. It is
provided with Accident and Emergency treatment unit, X-ray room, Dental unit,
Consultant unit, Childrens Ward, Female Ward, Male ward, Mandatory Ward and
Delivery section, ICU and Operation Theater.
In the design, special care was given to differently able people. They were provided
with special Wash rooms with special facilities. These washrooms are present in each
floor.
Cold water supply system and Hot water supply system are the most critical services
in this building. Both above ground and below ground waste water disposal systems were
provided. Since this is situated in Hatton, both Air conditioning and heating required for
the building. They were provided to the appropriate spaces. Electrical and telephone
system is another service present in this building.
This building is consists of a wet riser and sprinkler firefighting system. Smoke detectors
were used as fire detectors. Refuse chute is also included to the building.
Bio-gas system had introduced as an alternative power generation method. Since
this area have plenty of water, no need of rain water harvesting. A Roof garden is
maintained on the second floor top level. Few service ducts were provided to the building.Service lines were laid along the ceiling. Integrated system was adapted to this building.
There are few more services were included in this hospital. Passive concept was
taken in to the account in the design and it was design as a green building. Lot of
sustainable methods had adapted to this hospital design.
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Circulation
Vertical circulation
Stair case
Two stair cases were provided to this building. Both are identical. This is the main
access for the upper floors. Visitors supposed to use stair case. Dimensions and details of
the stair case are given below.
Floor to floor height = 4500 mm
Total width of core = 3500 mm
Length of the core = 5000 mm
Length of the landing = 1500 mm
Width of stair case = 1750 mm
Rise = 175 mm
Tread = 290 mm
Fig.1 Stair case
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Lift
One lift has provided for this building. It is not for visitors. It is mainly use for the
patients and for differently able people. Size of the lift will be 3500 mm 2700 mm. This
size was selected because it should be adequate to carry a trolley with a patient. And also
Wheel chairs should be able to carry from this lift. Staff can carry their stuff from the lift.
Since there is a lift, there is no ramp provided for differently able people. There is a
ramp in ground floor to give access to ground floor for differently able people.
3500 mm
2700 mm
Fig.2 Arrangement of the lift
Horizontal circulation
Corridors and passages were kept in 2.5 m width because they should be adequate
to exchange two trolleys or two wheel chairs. In ground floor, a ramp has provided for the
differently able people who can use that to enter the ground floor.
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Service Ducts (Integrated system)
A Hospital has various kinds of services. Service ducts are essential to have a
good services design. Few vertical service ducts were provided to this building. Some of
them were for plumbing. Cold water pipes, Hot water pipes, Waste water pipes were sent
through service ducts. Separate ducts were provided for electrical wires, telephone wires,
network cables and other cables. Cable trays were provided through ceilings and some
services lines were run through the ceiling. We are using an integrated system for wires
and cables. An integrated system was also used for the plumbing. Ventilation ducts were
provided for the places where they were necessary.
Fig.3 Integrated system of services under a ceiling
Fig.4 Intigrated service system through vertical ducts
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Sanitary appliances
Ground floor is consists of several bathrooms for the staff and for the general
public. All the wards were provided with Washrooms and adequate number of appliances
was provided for them. Each floor is consists with special washroom for differently able
people. They were provided with special appliances and special facilities.
Fig.5 Special arrangements for differently able people
Following is the calculation to find the required number of sanitary appliances for the
hospital staff.
Number of beds = 105
% of staff required = 38%
Number of staff required = 105 38%
= 40
Assumption;
Staff is consists of 15 males and 25 females. Therefore;
Required number of WCs for females = 3
Required number of WCs for males = 1
Required number of Wash basins for females = 3
Required number of Wash basins for males = 1
Required number of Urinals for males = 1
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In the design, building was provided;
One gents washroom at Administration area with 1 WC, 1 Wash basin and 1 Urinal
One Ladies washroom at Administration area with 1 WC and 1 Wash basin
A washroom for Doctors restroom with two WCs and a Wash basin
A washroom for Nurses restroom with two WCs and a wash basin
Altogether;
6 WCs, 4 Wash basins and 1 urinal
Here, one sink per washrooms was provided for cleaning purpose.
Washrooms were provided for each ward, ICU and Mandatory unit with sufficient
sanitary appliances. Hand railings were fixed near the appliances at the washrooms for
differently able people.
Hygienic effects were taken in to account when arranging the appliances and
intervening ventilated space was provided in washrooms. Urinals were not provided to
common washrooms in restrooms due to hygienic effect.
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Cold water supply
Cold water supply is the most critical service in a building. Since there is lack of
design information about Hospitals, internet was referred to find data. Total per day cold
water consumption was calculated according to the gathered data.
Per capita cold water consumption = 250 gal per day/ per bed
= 947 l per day/ per bed
Number of beds = 105
Total per day cold water demand = 105 947
= 99435 l
= 99.435 m3
Cold water demand for hot water = 160 l per day/ per bed
Total water demand for hot water = 160 105
= 16800 l/ day
= 16.8 m3
Total per day water demand = 99.435 + 16.8
= 116.235 m3
According to the water demand, an overhead water tank was provided. Dimensions of the
overhead tank as follows,
Length = 5 m
Width = 5 m
Height = 5 m
Free board = 0.2 m
Water height = 4.8 m
There for total capacity of the tank is 120 m3
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Loading units of each floor
Appliance Ground floor First floor Second floor
Amount Loading total Amount Loading total Amount Loading total
Unit loading Unit loading Unit loading
units units units
Wash basins 22 3 66 20 3 60 13 3 39
Sink 5 5 25 2 5 10 4 5 20
Bathing cubical
(Shower)
1 3 3 10 3 30 7 3 21
Bib tap 9 5 45 10 5 50 5 5 25
WC 13 2 26 10 2 20 7 2 14
Bidet shower 13 1 13 10 1 10 7 1 7
Water bath 1 10 10 1 10 10 2 10 20
Total
Table.1 Loading units of each floor
Calculation to find the flow rate of the urinal as follows;
Capacity of the urinal = 4.5 l
Interval between usage = 20 min
Flow rate = 4.5 60/20
60 60
= 0.0375 l/s
Number of urinals in;
Ground floor = 5
First floor = 0
Second floor = 2
188 190 146
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Assumptions;
Bathing cubical are consist of a shower and a bib tap WC and bidet shower was considered separately PVC pipes were used for cold water supply Water tank is right above the male wards washroom Pipe lines coming from the tank is running through the duct at male wards
washroom
Pipe has a horizontal length of 0.5 m at the bottom level of the water tank Floor to floor height of the building is 4.5 m Spring water is collected to an underground sump and it is pumped to the overhead
tank
Showers are at the height of 2 m above from the slab top level and all otherappliances are at 1 m height above the slab top level of each floor
Water tank is 4.5 m above the top level of the second floor
Except the wash basins in washrooms, few more wash basins and sinks were
provided for the places where they are necessary. One wash basin which is at the
waiting area of ground floor is for the outside visitors and OPD patient.
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Pipe sizing
Required pipe sizing for each branch can be calculated and adequate diameter was
selected by checking the available head of the appliances at the discharge point. Following
is a specimen calculation which was done for the pipe .
Assumption :- Inner diameter of 50 mm PVC pipes were used.
For ground floor;
Total loading units = 188
Flow rate due to loading units = 2.0 l/s
Flow rate from 5 urinals = 0.0375 l/s 5
= 0.1875 l/s
Total design flow rate = 2.0 + 0.1875
= 2.1875 l/s
For first floor;
Total loading units = 190
Design flow rate = 2.0 l/s
For second floor;
Total loading units = 146
Flow rate due to loading units = 1.7 l/s
Flow rate from 2 urinals = 0.0375 l/s 2
= 0.075 l/s
Number of;
Stop valves = 1
Elbows = 1
Ts = 1
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Pipe length = 9.0 + 0.5
= 9.5 m
Total loading units = 404
Flow rate due to loading units = 3.5 l/s
From urinals = 0.1875 + 0.075
= 0.2625 l/s
Total design flow rate = 3.5 + 0.2625
= 3.7625 l/s
Loss of head = 0.065 m/m run
Head loss due to the pipe = 0.065 9.5
= 0.6175 m
Head loss of stop valve = 1.6 m
Head loss due to elbows = 2.3 0.065
= 0.1495 m
Head loss due to Ts = 3.5 0.065
= 0.2275 m
Total head loss of the pipe = 0.6175 + 0.1495 + 0.2275
= 2.5945 m
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Fig.6 Cold water pipe line system
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Fig.7 Water tank and pumps arrangement
Alternative pump has provided to make sure the continuous water supply even in
a break down of the main pump. Water which is at under ground sump is pumped to the
elevated tank.
Key
= Stop valve BC = Bathing cubical
= Pump B = Water Bath
= Ball valve BT = Bib tap
WC = Water closet S = Sink
BS = Bidet shower WB = Wash basin
Assumption :- Bathing cubical is consists of a shower and a bib tap.
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Table.2 Pipe size calculation for cold water pipe system
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Pipe diameter for each pipe in the cold water system
Pipe number Outer diameter (mm)
1 54
2 42
2-1 35
2-2 35
2-3 35
2-4 35
2-5 35
3 42
3-1 35
4 54
5 42
5-1 35
5-2 35
5-3 35
6 42
6-1 35
6-2 35
7 42
8 42
8-1 35
8-2 35
8-3 35
9 42
9-1 35
9-2 35
9-3 35
Table.3 Pipe size estimation for cold water system
All the other pipes which are connecting appliances are of 28 mm outer diameter.
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Hot water supply
Hot water demand = 160 l/day/per bed
Peak demand = 30 l/hr
Number of beds = 105
Total demand = 105 160
= 16800 l/day
In this hospital, only the necessary appliances are provided with hot water. Mainly
the selected wash basins, selected sinks, bathing cubicles and water baths were connected
to hot water supply system. (i.e. wash basins in ward washrooms, washrooms in other
important units, sinks in operation theater and ICU.etc.) Ground floors public
washrooms were not connected to the hot water system because they may not use in night
time when the environment is cold. It is not necessary and also uneconomical. (This
hospital is situated in Hatton where the night temperature is low)
Hot water will generate using boilers. These boilers will be function with bio-gas.
Detail of the bio-gas supply unit will be discussed later. Electrical backup system for the
boilers were connected to keep continuation of hot water supply is low or dropped down.
Per person hot water demand = 35 l/day
Hot water cylinder capacity = 35 105
= 3675 l/day
= 3.675 m3/day
We cannot store the amount of total hot water demand in a cylinder because it will cause a
massive energy loss while storage and the water will not in adequate temperature all over
the day. So we are planning to do the boiling throughout the day. So we do not need
cylinder of 16.8 m3. So, about 4 m
3cylinder will be adequate.
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Fig.8 Hot water pipe line system
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Fig.9 Hot Water supply system
In this case, solar water heaters were come in to the seen as an alternative. But
doing it in large scale is expensive. Hatton area is not much experience lot of solar heat. So
it is not economically feasible.
Bio-gas can reduce the cost because we can get it free. And it also gives solution
for the solid waste disposal.
Required flow rate (Hot water) for several appliances
Wash basin = 0.08 l/s
Water bath = 0.15 l/s
Shower = 0.20 l/s
Sink = 0.15 l/s
Water tank
Cylinder
Vent pipe
To appliances
Boiler
Drain valve
Safe valve
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Table.4 Pipe size calculation for hot water pipe system
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Pipe diameter for each pipe in the hot water system
Pipe number Outer diameter
1 422 28
2-1 28
3 35
4-1 35
4-2 35
5 35
6 42
7 22
Table.5 Pipe size estimation for hot water system
Outer diameter of 22 mm pipes were used for the other part of the pipe network.
They were used to connect appliances to the main pipe lines.
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Waste water disposal system
Above ground waste water disposal system
Special system of waste water disposal method was used in this hospital. Gray
water is collecting separately and sends to a treatment plant before dispose them to ground.
Black water was directed to a bio-gas generating unit to generate bio-gas.
Three services ducts were included in this building for plumbing. Three main waste
water disposal pipe lines coming through these ducts were connected to a main line at
ground level which goes to their destinations. Here the main black water line was directed
to the bio-gas unit and the main gray water pipe line was directed to the waste water
treatment plant.
Discharge units of appliances
9lWC = WC = 14
Sink = S = 14
Wash basin = WB = 2
Water bath = B = 18
Shower = SH = 2
Bib tap = BT = 2
Assumption :- Bathing cubical (BC) is consists of a shower and a bib tap. Therefore
discharge unit of a bathing cubical is 4.
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Above ground gray waste water disposal system
Fig.10 Above ground waste water system
Gray water disposal system through duct 1 (D1)
Second floor level
First floor level
Ground floor level
D1-1 D1-2
D1-8
D1-3 D1-4
D1-9
D1-5 D1-6
D1-10D1-7
D1-11
Fig.11 Gray water disposal pipe line system through duct 1 (D1)
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Pipe
number
Discharge unit of appliances Total
discharge
units
Pipe
size
(inner
dia.)
(mm)
WC Sink Wash
basin
Water
bath
Shower Bib
tap
Urinal
Second Floor
D1-1 - - 42 =
8
- 32 =
6
32 =
6
- 20 63
D1-2 - 414=
56
42 =
8
181=
18
12 =
2
12 =
2
- 86 76
D1-8 20+86 =
106
76
First floor
D1-3 - 214=
28
210=
20
- 82 =
16
82 =
16
- 80 76
D1-4 - - 22 =
4
- - - - 4 50
D1-9 84+106 =
190
89
Ground floor
D1-5 - - 52 =
10
- - - - 10 50
D1-6 - - 52 =
10
- - - - 10 50
D1-7 - 514=
70
22 =
4
- - 52 =
10
- 84 76
D1-10 190+10=
200
89
D1-11 200+10+
84 =294
100
Table.6 Pipe size estimation of gray water pipes through duct 1
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Gray water disposal system through duct 2 (D2)
Second floor level
First floor level
Ground floor level
D2-1
D2-4
D2-7
D2-2
D2-3
D2-5
D2-6
D2-9D2-8
D2-10
From D3
Fig.12 Gray water disposal pipe line system through duct 2 (D2)
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Pipe
number
Discharge unit of appliances Total
discharge
units
Pipe
size
(inner
dia.)
(mm)
WC Sink Wash
basin
Water
bath
Shower Bib
tap
Urinal
Second Floor
D2-1 - - 23 =6
- - - 6 50
D2-2 - - 21 =
2
- 22 =
4
22 =
4
- 10 63
D2-3 6+10 =
16
63
First floor
D2-4 - - 23=
6
- - - - 6 50
D2-5 - - 22 =
4
- 22 =
4
22 =
4
- 12 63
D2-6 18+16 =
34
76
Ground floor
D2-7 - - 22 =
4
- - - - 4 50
D2-9 4+34 =
38
76
D2-8 - - 32 =
6
- - - - 6 50
From duct 3 (D3) 76
D2-10 32 =
6
6+6+38+
76= 126
89
Table.7 Pipe size estimation of gray water pipes through duct 2
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Gray water disposal system through duct 3 (D3)
Second floor level
First floor level
Ground floor level
D3-1 D3-2
D3-3
D3-4
D3-5
D3-6
D3-7
D3-8
D3-9
Fig.13 Gray water disposal pipe line system through duct 3 (D3)
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Pipe
number
Discharge unit of appliances Total
discharge
units
Pipe
size
(inner
dia.)
(mm)
WC Sink Wash
basin
Water
bath
Shower Bib
tap
Urinal
Second Floor
D3-1 - - - 118=18
- - - 18 63
D3-2 - - 22 =
4
- 21 =
2
21 =
2
- 8 50
D3-3 18+8 =
26
63
First floor
D3-4 - - - 118=
18
- - - 18 63
D3-5 - - 21 =
2
- 21 =
2
21 =
2
- 6 50
D3-6 24+26=
50
76
Ground floor
D3-7 - - - 118=
18
- - - 18 50
D3-8 18+50=
68
76
D3-9 - - 22 =
4
- 21 =
2
21 =
2
- 8+68 =
76
76
Table.7 Pipe size estimation of gray water pipes through duct 3
Higher provision for discharge pipes were given so that to avoid blocks and to
increase the efficiency of flow.
Size of the discharge pipe of each appliance (inner diameter)
Wash basin = 38 mm
Sink = 50 mm
Water bath = 63 mm
Bathing cubical = 63 mm
(Shower and bib tap)
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Total discharge units of main discharge pipe = 294+126+76
= 496
Therefore proposed pipe size = 125 mm
Assumption:- 85% of consumption will be discharge as gray water. Consume will be take
place in 18 hrs duration per day.
Discharge = 99.43585% /186060
= 1.30410-3
m3/s
= 1.304 l/s
From Chezzys equation;
V = Cmi
Considering half-filled conditions and assuming the self-cleansing velocity is 1.1 m/s
Fig.14 Section of a half filled pipe
m = A/
= (d2/4) / (d/2)
= d/4
Assume the peak flow is 6 time higher than average flow:
Peak flow = 1.304 6
= 7.824 l/s
Considering;
Q = AV
7.82410-3 = (d/2)20.9
d = 0.1488 m
Therefore d = 125 mm pipe is not adequate. So we can use d = 150 mm pipe as the main
horizontal discharge pipe.
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m = d/4
= 150/4
= 37.5 mm
Considering;
V = Cmi , C = 55
1.1 = 550.0375ii = 4/374
= 0.01067
Can use the slope of the pipe as 1: 90
Gray water treatment and disposal
This gray water was directed to a treatment plant and after treating they will
be discharge to a soakage pit.
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Above ground black water disposal system
Black water disposal system through duct 1 (D1)
Fig.15 Black water disposal system through duct 1 (D1)
Pipe Discharge units Total discharge
units
Inner diameter
of the pipe (mm)WC Urinal
Second floor
D1-1B - 22 = 4 4 50
D1-2B 414 = 56 - 56 89
D1-3B 4+56 = 60 89
First floor
D1-4B 314 = 42 - 42 89
D1-5B 414 = 56 - 56 89
D1-6B 42+56+60=158 100
Ground floor
D1-7B - 24 = 8 8 50
D1-8B 914 = 126 - 126 100
D1-9B 134+158= 292 150
Table.7 Pipe size estimation of black water pipes through duct 1
D1-2BD1-1B
D1-3B
D1-5BD1-4B
D1-6B
D1-8BD1-7B
D1-9B
Second floor level
First floor level
Ground floor level
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Black water disposal system through duct 2 (D2)
Fig.16 Black water disposal system through duct 2 (D2)
Pipe Discharge units Total discharge
units
Inner diameter
of the pipe (mm)WC Urinal
Second floor
D2-1B 214 = 28 - 28 89
D2-2B 28 89
First floor
D2-3B 214 = 28 - 28 89
D2-4B 28+28 = 56 89
Ground floor
D2-5B 214 =28 - 28 89
D2-6B 214 =28 - 28 89
From D3 42
D2-7B 56+56+42=164 125
Table.8 Pipe size estimation of black water pipes through duct 2
Second floor level
First floor level
Ground floor level
D2-1B
D2-2B
D2-3B
D2-4B
D2-5B D2-6B
D2-7BFrom D3
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Black water disposal system through duct 2 (D2)
Fig.17 Black water disposal system through duct 3 (D3)
Pipe Discharge units Total discharge
units
Inner diameter
of the pipe (mm)WC Urinal
Second floor
D3-1B 114 = 14 - 14 89
D3-2B 14 89
First floor
D3-3B 114 = 14 - 14 89
D3-4B 14+14 = 28 89
Ground floorD3-5B 114 =14 - 14 89
D3-6B 214 =28 - 14 =28 = 42 100
Table.9 Pipe size estimation of black water pipes through duct 3
Higher provisions were allowed for diameter of the pipes to make sure that
solids will not block the pipes and to obtain the half fill condition. It also increases the
efficiency of the flow.
D3-1BSecond floor level
First floor level
Ground floor level
D3-3B
D3-2B
D4-1B
D3-5B
D3-6B
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Total discharge units = 292+42+112
= 446
Therefore, 150 mm diameter pipe was provided as the main black water disposal pipe. This
is laid on the ground.
Assumptions :-
Total amount of the black water discharge per day is equal to 15% of the usage Pipes are in half filled condition Self-cleansing velocity of the black water is 0.9 m/s Water demand will be occur during 18 hr period per day Peak demand is six times the average demand
Black water discharge = 99.43515% / 186060
= 2.30210-4
m3/s
Peak discharge = 2.30210-4
6
= 1.381210-3
m3/s
Considering, Q= AV;
1.381210-3 = d20.9/4
d = 0.0442 mm
Therefore d=150 mm pipe is adequate.
Considering, m = A/;
m = d/4
=0.15/4
m = 0.0375 m
From Chezzys equation, V = Cmi , C=55
0.9 = 550.0375i
i = 7.93410-4
Provided slope for the pipe is 1:125
This pipe was directed to bio-gas unit.
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Below ground waste water disposal system
Below ground black water disposal system
All the black water is directed to a bio-gas unit. It will be work as a below
ground black water disposal system.
Below ground gray water disposal system
All the Gray water was directed to a gray water treatment plant. After
treating, they will be discharge to the ground. This system will be acting as the below
ground gray water disposal system.
Further details of the bio-gas unit and water treatment plant will be discussed later.
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Fire Security system
Fire security system is consisting of two elements. They are fire detecting
and firefighting. In this building, both fire detecting and firefighting systems were
installed.
Fire detecting system
We have provided heat detectors as the fire detectors. Since this area has less
temperature, smoke detectors will be more effective over heat detectors. They were
connected to fire alarms.
Fig.18 Smoke detectors
Fire alarms were installed in wards and other necessary areas. If smoke enters
the unit, particles attach to the ions slowing their movement. This reduction in current flow
actuates an electronic relay circuit to operate an alarm.
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Fire fighting system
Fig.19 Wet riser
Fig.20 Landing valve
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A wet riser was provided to the building. Plumbing for wet riser was laid
through service ducts. Hoses were provided in each floor. Except the wet riser, portable
fire fighters (Foam) were installed at necessary places. Especially we provided them for
small fire and for the places where using water is not much appropriate.
Fig.21 Portable fire fighters
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Public administration system and Security Camera system
Public administration system
A public administration system was installed in this hospital. All the wards and
the necessary places were provided with speakers. The controlling unit was installed in
administration area. All the announcements can be passing through this system. Cables for
this system were laid through service ducts.
Fig.22 Wall mounted Speaker
Security Camera system
Security cameras were mounted in the entrance, wards and other necessary
positions in the hospital for security purpose. Control unit was situated in administration
area. Cables for this system were laid through service ducts.
Fig.23 Security Camera
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Lighting system
Illumination level and required lamps
Lighting is another critical service of a hospital. Adequate light with appropriate
Illumination level should be provided. Followings are the required Illumination levels
according to EN 12464-1 (2002)
Area Illumination level Em (lx)
Corridor 200
washrooms 200
Store room 100
Office 500
Staff room 300
Wards 300Delivery room
General lighting
Examination area
300
1000
Emergency treatment unit 500
Operation theater
Theater
Recovery area
1000
500
ICU
general
Examination and treatment area
300
1000Dental unit
General
At the patient
500
1000
Pharmacy 500
Table.10 Illumination level of different areas
Table.11 Data of different types of lamps
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Assumption:- use 80 W Fluorescent lamp which has 7375 luminous.
Number of lamps = EA/ FUM
Where;
E = Illumination level
A = Area
F = luminous per lamp
U = Utilization factor
M = Maintenance factor
Here, U = 0.5 and M = 0.8
Specimen calculation to find the required number of lamps for front lobby, staircase and lobby in the ground floor as follow;
Area = 737.5
= 248.5 m2
Illumination level = 200 lx
Required number of lamps = EA/FUM
= 200248.5/73750.50.8
= 16.85
17 lamps were required.
Assumption:-
Average illumination level at,
Delivery room = (1000 + 300)/2
= 650 lx
ICU = (1000 + 300)/2
= 650 lx
Dental unit = (1000 + 500)
= 750 lx
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Name of the area Illumination
level (lx)
Area (m2)
Number of
lamps
Ground floor
Front lobby, Stair case and lift 200 262.5 17
Corridors 200 50 4Administration area 500 67.5 12
Rest rooms 300 56.5 6
Washrooms and cleaning room 200 84.5 7
Services room and store room 100 31.5 2
Consultant room 300 28 3
Emergency treatment unit 500 56 10
OPD 500 24 4
Medical record room 300 15 2
Pharmacy 500 6.25 1
Back lobby and stair case 200 93 7
X-ray room 300 35 4
Dental unit 750 28 8
Around the hospital 100 252 9
Total number of lamps required for ground floor 96
First floor
Corridors, lobbies, lift and staircase 200 208.25 15
Children ward 300 115 12
Female ward 300 214 22
Washrooms 200 82 6
Mandatory ward 300 72 8Delivery section 650 59.5 14
Total number of lamps required for First floor 77
Second floor
Corridors, lobbies, lift and staircase 200 135.25 10
Male ward 300 115 12
General ward 300 131.5 14
Operation theater 1000 40 14
Recovery area and lobby 500 25 5
Washrooms 200 70 5ICU 650 112 25
Store room 100 48 2
Total number of lamps required for First floor 87
Table.12 Estimation of number of lamps per several areas
Total number of lamps required = 96 + 77 + 87
= 260
Energy requirement for lighting = 260 80 W
= 20.8 kW
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In hospitals, special kind of lamps and lightings are using in Operation theaters,
ICU and Dental units. High intensity lighting systems are useful for examine patients in
operation theaters and dental units.
(i) (ii)Fig.24 Interior lighting of (i)Operation theater and (ii)ICU
Alternative lighting method- LED lighting system
LED lamps are proposed to use in this hospital as alternative energy
conservation method.
Advantages of LED lighting system
long service life low maintenance costs low power consumption minimum operating costs vibration and impact-proof compact size high colour stability efficient control thanks to simple control system low heat generation
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Fig.25 LED luminariesStatic and dynamic light
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Energy Consumption
Fig.26 Energy usage of a Hospital
Equipment Energy (kW)
MI (Cyclotron) 100Cathlab 105
MRI 75
CT 64
PET & PET CT 72
Surgery mobile C arm 8
CSSD (Central Sterilization supply dept.) 96
OT equipment 1.6
ICCU equipment 1.6
X-ray (Radiography, Fluoroscopy) 52
Mammography 12
Ultra sound 4
Healthcare IT work station 1.6
Table.13 Energy consumption for equipment
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