Supervisor
Students
Dr. Iyad Assaf
Mohammad Jitan
Mohammad Shalan
Jehad Odeh
Jehad Zuhd
The objective of this project is to design
Conventional (HVAC) System (Fan coil units
with chiller and Boiler ) for AL-Rehan
Hospital.
 In addition with all recommended
mechanical systems that should contain
like (potable water, drainage, medical
gases and fire fighting) systems.


HVAC (heating, Ventilation, and Air
conditioning) is the technology of indoor
and automotive environmental comfort.
HVAC system design is a major sub
discipline of mechanical engineering,
based on the principles
of thermodynamics, fluid mechanics,
and heat transfer. Also the mechanical
systems are to be introduced in our
research including potable, drainage,
firefighting and medical gases.

Location
Country: Palestine .
City: Ramallah
Region: Dahyet Al-Rehan.
Elevation: 800 m above sea level.
Latitude: 32 N.
Wind’s speed in Ramallah is above
5 m/s.
Al-Rehan Hospital consist of
tenth floor ,four Basement
Floor , Ground Floor and
Five Up Floor and each
Floor has approximately
1500 m^2
Parameter
Tin
To
Tun
Tg
Φin Φout W in
Wout
Winter
22
4.7
13
9.7
50% 70%
8.4
3.9
Summer
24
30
28
29
70% 52%
8.4
13.7
Overall heat transfer coefficient depends on the
construction of the unit. To find the overall heat
transfer coefficient , the construction was taking in
consideration because Uoverall control with the
quantity of losses by wall , ceiling , ground ,
windows and doors.

Uoverall is given by:
U= 1/Rtot
R tot = Ri + R + Ro
R= ∑ x/K
composition
thickness
K(w/m.C)
R th
firm stone
0.1
2.2
0.0455
concrete ( light )
0.1
1.75
0.0571
insulation (polystyrene)
0.03
0.04
0.7500
cement brick(air gap)
0.1
0.72
0.1389
cement plaster
0.02
1.2
0.0167
sum
0.35
Ri
0.12
1.0082
Ro
Ri = 0.12 m2.C\W
Ro= 0.03 m2.C\W
Rtot= Ri+Rw+Ro
Rtot=0.12+1.0082+0.03 =1.18814 (m^2).C/W
U=0.8634 W/(m^2).C
0.03
Material
Thickness (m)
Thermal conductivity
Thermal resistance
"K"(W/m.C’’)
"R" (m2.C/W)
Plaster
0.02
1.2
0.01666
Block
0.1
0.72
0.13889
Plaster
0.02
1.2
0.01666
Sum
0.14
Ri = 0.12 m2.C\W
Ro= 0.03 m2.C\W
Rtot= Ri+Rw+Ro
Rtot=0.12+0.17221+0.03 =0.41221 (m^2).C/W
U=2.4259 W/(m^2).C
0.17221
composition
thickness
K(w/m.c)
R th
asphalt
0.02
0.8
0.0250
concrete ( light )
0.05
1.75
0.0286
insulation (polystyrene)
0.03
0.04
0.7500
concrete ( light )
0.03
1.75
0.0171
cement brick(air gap)
0.17
0.72
0.2361
cement plaster
0.02
1.2
0.0167
sum
0.32
Ri
0.1
1.0735
Ro
Ri = 0.12 m2.C\W
Ro= 0.03 m2.C\W
Rtot= Ri+Rw+Ro
Rtot=0.12+0.17221+0.03 =0.41221 (m^2).C/W
U=2.4259 W/(m^2).C
0.02
U overall for windows and doors taken directly
from energy efficient building code as
follow:
Windows double glasses with aluminum material
type, wind speed more than 5 m/s
Uwindow = 3.5 W/m2.C.
 Doors with wood material type without storm door ,
wind velocity more than 5 m/s
Udoor = 2.4 W/m2.C

The value of the overall heat transfer
coefficient for each element construction
Type
Overall heat transfer coefficient (w/m2.k)
External Walls
0.8634
Internal Walls
2.4259
Ceiling
0.83788
Windows
3.5
Doors
2.4
PROCEDURES










Select inside design condition Temperature, relative humidity(Tin, Φin).
Select outside design condition Temperature, relative humidity(Tout, Φout).
Select unconditioned temperature(Tun).
Find over all heat transfer coefficient Uo for wall, ceiling, floor, door,
windows, below grade.
Find area of wall, ceiling, floor, door, windows, below grade.
Find Qs conduction.
Find V inf , V vent .
Find Qs, QL vent, inf.
Find Q domestic hot water.
Find Q boiler.
EQUATIONS
Q = U* A* ( Ti - To )
 Vvent = n * value of ventilation
 Vinf
= (ACH * inside volume *1000) /3600
 Qs)vent , inf= 1.2 Vvent,inf*(Ti-To)
 Ql)vent , inf = 3 Vvent,inf*(Wi-Wo).
 Qw = (Mw *cp*(Th – Tc ))/∆t
Unconditioned Temperature In summer
Tun = Ti+2/3*( To - Ti )
Unconditioned Temperature In winter
Tun = Ti+0.5*( Ti - To )


Single Room ( 1 ) Specification
Area of outside wall = 14 m²
Area of unconditioned wall = 32.2 m²
Area of window is = 1.8 m²
Ceiling area = 18.6 m²
Conduction heat gain
Qs = U*A*∆T
Q.ext = 0.8634*14*17.3 = 209.11548 Watt.
Q. un = 2.4259*32.2*8.65 = 675.686 Watt.
Q cel. = 0.8379*18.6*17.3 = 278.01 Watt.
Qs.cond = Q.ext + Q.un + Q.cilling
Qs.cond= 1268.5 Watt.

Ventilation and Infiltration heat gain
Q.s.ven =1.2*5*18.6 *17.3 = 1930.068 Watt
 Q.tot = 1268.5 + 1930 = 3199.18 Watt

Room
Qs, cond. (W)
Qs, vent. (W)
Q tot ( W )
Single Room (1)
1268.500
1930.68
3199.180
Single Room (2)
1031.932
1972.2
3004.132
Single Room (3)
1133.207
2179.8
3313.007
Single Room (4)
1322.810
1951.44
3274.250
Single Room (5)
855.860
1868.4
2724.260
Single Room (6)
1015.360
1837.26
2852.620
Single Room (7)
1025.506
1909.92
2935.426
Single Room (8)
1141.954
1764.6
2906.554
Single Room (9)
1369.834
3217.8
4587.634
Single Room (10)
994.378
1349.4
2343.778
Single Room (11)
979.446
2366.64
3346.086
Double Room(1)
1504.825
2449.68
3954.505
Double Room(2)
1092.185
2460.06
3552.245
Double Room(3)
825.418
2439.3
3264.718
Double Room(4)
828.317
2460.06
3288.377
Double Room(5)
828.317
2460.06
3288.377
Double Room(6)
915.001
2449.68
3364.681
Double Room(7)
1151.699
2003.34
3155.039
Double Room(8)
1411.993
2179.8
3591.793
Double Room(9)
2192.196
2875.26
5067.456
Double Room(10)
1197.415
2875.26
4072.675
Double Room(11)
1197.415
2875.26
4072.675
Double Room(12)
1197.415
2875.26
4072.675
Double Room(13)
1197.415
2875.26
4072.675
Double Room(14)
1197.415
2875.26
4072.675
Double Room(15)
1197.415
2875.26
4072.675
Double Room(16)
1197.415
2875.26
4072.675
Main Carador (1)
11821.867
2179.8
14001.66718
Main Carador (2)
7002.546
9861
16863.54555
Small Corridor
10697.957
11781.3
1083.343404
Doctor Office(1)
1193.740
830.4
2024.139877
Doctor Office (2)
255.751
1557
1301.248564
Lounge
13496.776
1141.8
14638.57615
Lounge (1)
9479.012
11729.4
2250.388031
Male Change
152.639
1671.18
1823.818852
Female Change
1182.815
1245.6
2428.41484
Nurse Station
34.634
1557
1522.36566
Waiting
14371.783
1245.6
15617.38301
Suite Room
6895.487
11418
4522.512811
Clean & Dirty UT.
1080.020
3363.12
2283.099753
Sum
127492.200
2003.34
129495.540

Boiler specification
Domestic hot water load 145.03 KW
 Heating Load 834.4 KW


Boiler Capacity = 1077.37 KW


Annual fuel consumption of diesel is
154.86 cubic meter per year .
From Obrien boilers Company
Catalogue
we chose


REX K120 F with capacity of 1200 KW

Required pump for boiler have the
following specification
pump head 149.75PSI .
 pump flow rate 20.14 L/s.


From WILO catalog we chose NL 50/31545-2-12-50Hz series .

From Wessels Company Catalogue
depending on pump flow rate(20.17 L/s)
(319.7 GPM )we select TXA 1400

EQUATIONS
 For Ceiling:
Q=U*A*(CLTD)corr
(CLTD)corr = (CLTD + LM) K + (25.5 – Ti )+ (To – 29.4)
CLTD: cooling load factor
K=1 dark color

K:color factor
K=0.5 light color
For Walls: Q=U*A*(CLTD)corr
(CLTD)corr =(CLTD + LM) K + (25.5 – Ti )+ (To – 29.4)
K=1 dark color
K=0.83 medium color
K=0.5 light color

For Glass
•
•
Heat transmitted through glass
SHG: solar heat gain
SC: shading coefficient
CLF: cooling load factor
Convection heat gain

For people
Qs=qs*n*CLF
Q=A*(SHG)*(SC)*(CLF)
Q=U*A*(CLTD)corr
qL=qL*n
Qs,QL: sensible and latent heat gain
qs,qL: sensible and latent gains per person
n: number of people
CLF: cooling load factor

For lighting
Qs=W*CLF
W:lighting capacity: (watts)

For equipments
Qs=qs*CLF
QL=qL
Area of outside wall = 14 m²
 Area of unconditioned wall = 32.2 m²
 Area of window is = 1.8 m²
 Ceiling area = 18.6 m²

Sensible and latent heat gain for one person from table (A-16).
 Qs = 71.5 W
 QL= 57 W
Sensible heat gain
 Qs in, wall = U x A x (CLTD) correct = 90.58 W
Transmission heat gain (window) = 51.86 W
Convection heat gain = U*A*CLTD.corr = 63.63 W
Convection heat gain
 U*A*CLTDcorr = 63.63 W
Load from ventilation and infiltration
 Qs vent/inf = 1.2*Vvent* ∆t = 1.2*75.8*7.4 = 669.6 W
 QL vent = 3*Vvent*(Wi-Wo) = 3*75.8*6.5 =1478.7 W
Heat load due to people
 Qs = qs*n*CLF = 70*1*0.84 = 62.3 W
 Ql = ql*n = 44*1 = 44 W
Heat load due to lighting
 Qs/l = Aroom*CLF= 279 * 0.85 = 237.15 W
Heat load due to equipment


Qs = 522 W
QL = 0 W
Total sensible load ∑Qs = 1826.87 W
Total latent load = ∑Ql = 1522.7 W
Total load = 3349.3 W
Total heat loss for every room
Room
Qs (W)
Ql (W)
V vent(L/S)
total loss (W)
Total loss (KW)
single Room (1)
1826.592
1522.700
93
3349.292
3.349292192
single Room (2)
1826.592
1522.700
93
3349.292
3.349292192
single Room (3)
2044.952
1697.600
106
3742.552
3.74255162
single Room (4)
2056.090
1729.400
106
3785.490
3.785489612
single Room (5)
1973.243
1729.400
106
3702.643
3.702643136
single Room (6)
1973.243
1729.400
106
3702.643
3.702643136
single Room (7)
1973.243
1729.400
106
3702.643
3.702643136
single Room (8)
1914.915
1586.300
97
3501.215
3.501215208
single Room (9)
2977.166
2556.200
158
5533.366
5.533365593
single Room (10)
1423.985
1077.500
65
2501.485
2.501485446
single Room (11)
2078.175
1872.500
115
3950.675
3.950674551
Double Room(1)
2495.337
1972.150
118.5
4467.487
4.46748684
Double Room(2)
2180.071
1916.500
115
4096.571
4.096570996
Double Room(3)
2250.171
1996.000
120
4246.171
4.246171331
Double Room(4)
2217.267
1956.250
117.5
4173.517
4.173516713
Double Room(5)
2223.848
1964.200
118
4188.048
4.188047636
Double Room(6)
2239.155
1980.100
119
4219.255
4.219255033
Double Room(7)
1856.390
1646.200
98
3502.590
3.502589527
Double Room(8)
2091.395
1813.150
108.5
3904.545
3.904544581
Double Room(9)
2977.166
2556.200
136.5
5533.366
5.533365593
Double Room(10)
2406.834
2258.350
136.5
4665.184
4.665184295
Double Room(11)
2406.834
2258.350
136.5
4665.184
4.665184295
Double Room(12)
2406.834
2258.350
136.5
4665.184
4.665184295
Double Room(13)
2406.834
2258.350
136.5
4665.184
4.665184295
Double Room(14)
2406.834
2258.350
136.5
4665.184
4.665184295
Double Room(15)
2406.834
2258.350
136.5
4665.184
4.665184295
Double Room(16)
2406.834
2258.350
136.5
4665.184
4.665184295
main carador (1)
8525.349356
8212.5
475
16737.849
16.73784936
main carador (2)
10079.85487
9683.25
567.5
19763.105
19.76310487
small corridor
842.7729144
724
40
1566.773
1.566772914
942.35
56.5
1848.294
1.848294376
1260.35
76.5
2545.004
2.545004163
18.31961435
doctor office(1)
doctor office (2)
905.9443758
1284.654163
lounge
8896.114346
9423.5
565
18319.614
lounge (1)
1426.585152
1367.95
80.5
2794.535
2.794535152
male change
1170.207282
1042
60
2212.207
2.212207282
female change
1483.107832
1280.5
75
2763.608
2.763607832
nurse station
1061.858482
1042
60
2103.858
2.103858482
550
19848.300
19.84829997
2619.8
162
5470.227
5.47022717
3010.768
3.01076827
151725.156
151.7251557
waiting
suite room
10223.29997
2850.42717
9625
clean & dirty UT.
1432.41827
1578.35
96.5
Sum
79800.756
71924.400
6022
FLOOR
Q total ( kW )
Mass Flow Rate(L/s)
B4
59.1
2.35645933
B3
71.7
2.858851675
B2
157.16
6.266347687
B1
143.42
5.718500797
GF
172.69
6.885566188
1
130
5.183413078
2
152.89
6.096092504
3
116.2
4.633173844
4
116.2
4.633173844
5
150.7
6.00877193
SUM
1270.06
50.64035088

Building Load = 1270.06 kW OR 362.87 T.R
From PETRA Company we select
APSa 385 – 3S AC1 50 Hz.
 with 385 Ton. Refrigeration cooling load
capacity .

Friction loss = 66.17 PSI
 Fitting loss = 33.08 PSI
 Head loss = 50.49 PSI.

Pump head = 149.75 PSI
 Pump Flow rate = 50.64 L/s


From WILO catalog we select
SCP 150/580HA series.
From Wessels Company Catalogue
depending on Pump flow rate (19.44 L/s)
(308 GPM) the suitable pressure tank
FXA-1200
For Single Room (1)
 Cooling
Load = 3.35 KW
 V cir. = 465.17 L/s
 V c.f.m = 1023.34 CFM
 From Petra Catalogue we select
DCC 20 H/C 4Rows Model
F.C.U #
Load (CFM)
Model
F.C 1
1023.394837
DCC 20 H/C 4Rows
F.C 2
1023.394837
DCC 20 H/C 4Rows
F.C 3
1143.55744
DCC 20 H/C 4Rows
F.C 4
1156.677381
DCC 20 H/C 4Rows
F.C 5
1131.36318
DCC 20 H/C 4Rows
F.C 6
1131.36318
DCC 20 H/C 4Rows
F.C 7
1131.36318
DCC 20 H/C 4Rows
F.C 8
1069.815758
DCC 20 H/C 4Rows
F.C 9
1690.750598
DCC 20 H/C 4Rows
F.C 10
764.3427753
DCC 8 H/C 4Rows
F.C 11
1207.150557
DCC 20 H/C 4Rows
F.C 12
1365.065423
DCC 20 H/C 4Rows
F.C 13
1251.730027
DCC 20 H/C 4Rows
F.C 14
1297.44124
DCC 20 H/C 4Rows
F.C 15
1275.241218
DCC 20 H/C 4Rows
F.C 16
1279.681222
DCC 20 H/C 4Rows
F.C 17
1289.216816
DCC 20 H/C 4Rows
F.C 10
1070.235689
DCC 20 H/C 4Rows
F.C 19
1193.055289
DCC 20 H/C 4Rows
F.C 20
1690.750598
DCC 20 H/C 4Rows
F.C 21
1425.472979
DCC 20 H/C 4Rows
F.C 22
1425.472979
DCC 20 H/C 4Rows
F.C 23
1425.472979
DCC 20 H/C 4Rows
F.C 24
1425.472979
DCC 20 H/C 4Rows
F.C 25
1425.472979
DCC 20 H/C 4Rows
F.C 26
1425.472979
DCC 20 H/C 4Rows
F.C 27
1425.472979
DCC 20 H/C 4Rows
F.C 28
2557.171429
DCC 30 H/C 4Rows
F.C 29
3019.363244
DCC 30 H/C 4Rows
F.C 30
478.7361683
DCC 6 H/C 4Rows
F.C 31
564.7566148
DCC 6 H/C 4Rows
F.C 32
777.6401609
DCC 8 H/C 4Rows
F.C 33
1865.886646
DCC 20 H/C 4Rows
F.C 34
853.885741
DCC 10 H/C 4Rows
F.C 35
675.9522249
DCC 8 H/C 4Rows
F.C 36
844.4357264
DCC 10 H/C 4Rows
F.C 37
642.8456472
DCC 8 H/C 4Rows
F.C 38
2021.586108
DCC 24 H/C 4Rows
F.C 39
1671.458302
DCC 20 H/C 4Rows
F.C 32
919.9569715
DCC 10 H/C 4Rows

Supply Pipe sizing
 m = (Qs +Ql.) / (4180*6)
m = (1826.6 +1552.7) / (4180*6) = 0.135 L/s
 Pressure drop assumption 400 pa/m.

Preferred size at operating condition is 0.75 in
SHAFT ( 1 )
Heat loss (W)
m ( L/s)
F.C.U
Friction
Size ( in )
1.69564826
400
2
1.36195908
400
1.5
1.18382962
400
1.5
1.05028527
400
1.5
0.88694512
400
1.25
0.75340078
400
1.25
0.5840957
400
1.25
0.43487115
400
1
0.26846299
400
1
0.16698755
400
0.75
8368.925
F.C 28 A
4467.487
F.C 12
3349.292
F.C 1
4096.571
F.C 13
3349.292
F.C 2
4246.171
F.C 14
3742.552
F.C 3
4173.517
F.C 15
2545.004
F.C 32
4188.048
F.C 16

Qt = 3.35 kw

V circulation air = Qt / 1.2 * (Tcir. – Ti)
V circulation = 3.35 / (1.2* 10) = 0.465 m3/ s
Pressure drop = 0.55 pa / m







velocity = 4.1 m / s
A = 0.11 m2
D = 0.385 m
High = 0.3 m
Width = 0.425 m
F.C.U #
Load (CFM)
HIGHT
A-B
B-C
C-D
D-E
E-F
F-G
G-H
F.C 1
1023.394837
0.3
0.425
0.275
0.2
F.C 2
1023.394837
0.3
0.425
0.275
0.2
F.C 3
1143.55744
0.3
0.45
0.325
0.2
F.C 4
1156.677381
0.3
0.45
0.325
0.2
F.C 5
1131.36318
0.3
0.45
0.325
0.2
F.C 6
1131.36318
0.3
0.45
0.325
0.2
F.C 7
1131.36318
0.3
0.45
0.325
0.2
F.C 8
1069.815758
0.3
0.425
0.275
0.2
F.C 9
1690.750598
0.3
0.625
0.5
0.375
F.C 10
764.3427753
0.3
0.325
0.2
F.C 11
1207.150557
0.3
0.475
0.35
0.2
F.C 12
1365.065423
0.3
0.525
0.4
0.2
F.C 13
1251.730027
0.3
0.5
0.35
0.2
F.C 14
1297.44124
0.3
0.5
0.35
0.2
F.C 15
1275.241218
0.3
0.5
0.35
0.2
F.C 16
1279.681222
0.3
0.5
0.35
0.2
F.C 17
1289.216816
0.3
0.5
0.35
0.2
F.C 10
1070.235689
0.3
0.425
0.275
0.2
F.C 19
1193.055289
0.3
0.425
0.275
0.2
F.C 20
1690.750598
0.3
0.625
0.5
0.375
0.2
F.C 21
1425.472979
0.3
0.55
0.425
0.275
0.2
F.C 22
1425.472979
0.3
0.55
0.425
0.275
0.2
F.C 23
1425.472979
0.3
0.55
0.425
0.275
0.2
F.C 24
1425.472979
0.3
0.55
0.425
0.275
0.2
F.C 25
1425.472979
0.3
0.55
0.425
0.275
0.2
F.C 26
1425.472979
0.3
0.55
0.425
0.275
0.2
F.C 27
1425.472979
0.3
0.55
0.425
0.275
0.2
F.C 28
2557.171429
0.3
0.875
0.775
0.65
0.525
0.4
0.25
0.2
F.C 29
3019.363244
0.3
1.025
0.9
F.C 30
478.7361683
0.3
0.225
0.2
0.775
0.65
0.53
0.4
0.28
F.C 31
564.7566148
0.3
0.275
0.2
F.C 32
777.6401609
0.3
0.325
0.2
F.C 33
1865.886646
0.3
0.675
0.55
F.C 34
853.885741
0.3
0.35
0.2
0.425
0.3
0.2
F.C 35
675.9522249
0.3
0.3
0.2
F.C 36
844.4357264
0.3
0.35
0.2
F.C 37
642.8456472
0.3
0.3
0.2
F.C 38
2021.586108
0.3
0.725
0.6
0.475
0.35
0.2
F.C 39
1671.458302
0.3
F.C 32
919.9569715
0.3
0.625
0.5
0.375
0.2
0.375
0.2
H-I
0.2
0.2
For single room ( 1 )
 V.vent. = ( L/S/ Area ) * Area
 V.vent. = 5 * 18.6 = 93 L/s
 Pressure drop = 0.55 pa / m





velocity = 3 m / s
A = 0.0314 m2
D = 0.2 m
High = 0.2 m
Width = 0.175 m
SHAFT ( 1 )
SECTION
A-B
B-C
C-D
D-E
E-F
F-G
G-H
H-I
I-J
V vent(L/S)
PA/M
HIGHT
WIDTH
0.55
0.3
0.875
0.55
0.3
0.7
0.55
0.3
0.65
0.55
0.3
0.575
0.55
0.3
0.5
0.55
0.3
0.45
0.55
0.3
0.35
0.55
0.3
0.275
0.55
0.3
0.2
1173.5
936
843
724.5
609.5
516.5
396.5
290.5
173
STATIC PRESSURE PA
13.75
Fan specification
Flow rate = 1173.5 L/s
 Static Pressure = 13.75 pa


From Rosenberg RoVent catalog we
select DHAD 355-4 series .
V = ( A.C.H *Vin* 1000) / 3600
 V = ( 10 * 3.5*3.1*1000 ) / 3600
 V = 30 L/s/path.


Pressure drop = 0.55 pa / m
velocity = 2 m / s
 D = 0.136 m
 High = 0.2 m
 Width = 0.75 m

SECTION
A-B
B-C
C-D
D-E
E-F
F-G
G-H
V (L/S)
PA/M
HIGHT
WIDTH
0.55
0.2
0.325
0.55
0.2
0.3
0.55
0.2
0.25
0.55
0.2
0.225
0.55
0.2
0.175
0.55
0.2
0.125
0.55
0.2
0.75
210
180
150
120
90
60
30
STATIC PRESSURE PA
13.75
Fan specification
Flow rate = 210( L/s ).
 Static Pressure = 13.75 pa


From Rosenberg RoVent catalog we
select DHAD 355-4 series .
For Operation Theaters in the First floor
 Three O.T have Load of (440.12 CFM).
 The other have load of (635.86 CFM ).
For Operation Theater in the Second floor
 Operation Theater load of (530.5 CFM)
For Operation Theaters in the GF floor
 Operation Theater load of (217.57 CFM)
For Operation Theaters in the B1 floor
 Operation Theater load of (633.53 CFM)
From PETRA Catalogue the minimum
Available AHU Load is 1200 CFM
 So we select PAH H C 12 C6 H4 X4


Potable Water

No. of Fixture units is to be calculated
to start sizing using special tables for
potable design.
For internal network plastic pipes to
be used
For external network steel pipes to be
used


Space Name
( H.W.S ) F.U
( H.W.R ) F.U
( C.W.S ) F.U
SINGLE ROOM (1&2)
12
7.2
22
SINGLE ROOM ( 3 )
6
3.6
11
SINGLE ROOM (4&5)
12
7.2
22
SINGLE ROOM ( 6 & 7)
12
7.2
22
SINGLE ROOM (9) + DOUBLE ROOM 16
12
7.2
22
SINGLE ROOM (10) + DOUBLE ROOM ( 7 )
12
7.2
22
DOUBLE ROOM ( 1 & 2 )
12
7.2
22
DOUBLE ROOM ( 3 & 4 )
12
7.2
22
DOUBLE ROOM ( 5 & 6 ) + SUITE
18
10.8
33
DOUBLE ROOM ( 8 & 9 )
12
7.2
22
DOUBLE ROOM ( 10 & 11 )
12
7.2
22
DOUBLE ROOM ( 12 & 13 )
12
7.2
22
DOUBLE ROOM ( 14 & 15 )
12
7.2
22
WAITING AND LUNGE
0
0
1
MAIL CHANGE
16
9.6
26
FEMAIL CHANGE
16
9.6
26
Single Room (11) and Lounge(1)
6
3.6
11
Riser ( 1 ) MAIN LINE Size ( in )
ITEM
TOTAL FIXTURE
Flow Rate ( L/s )
SIZE ( in)
Cold Water System
77
2.357
1.25
Hot Water System
42
1.724
1.25
Hot Water System Return
25.2
1.38
1
Section
( H.W.S ( L/S )
SIZE (in) ( H.W.S )
( H.W.R ) ( L/S )
SIZE (in) ( H.W.R )
A-B
1.01
1
0.88
1
B-C
0.68
0.75
0.47
0.5
C-D
1.01
1
0.88
1
D-E
1.01
1
0.88
1
Section
( C.W.S ) ( L/S )
SIZE (in) ( C.W.S )
A-B
1.288
1
B-C
0.965
1
C-D
1.288
1
D-E
1.288
1
FLOOR
CWS ( F.U )
HWS ( F.U )
B4
21.5
16.5
B3
93
43
B2
108
48
B1
36.25
12.25
GF
172
21
1
133.5
43.5
2
197
57
3
350
194
4
350
194
5
350
194
SUM ( F.U )
1811.25
823.25
FLOW RATE ( L/s )
19.438
11.5665
SIZE ( IN )
4
3.5
TANK SIZE
2.33256
1.38798
Residual Pressure ( PSI )
5
5
Friction ( PSI )
17.64705882
17.64705882
Fitting ( PSI )
8.823529412
8.823529412
Head ( PSI )
5.049264706
5.049264706
Total Head ( PSI )
26.42132353
26.42132353
Flow Rate (L/S )
19.438
11.5665
Pump Specification
Cold Water Pump have the following
specification :


Flow rate 19.438 L/s
Pump Head 26.42 PSI

From WILO Catalog we chose NL 50/1605.5-2-12-50Hz series.

Tank size 2.33256 Cubic meter for two
operating hour per day .
Hot Water Pump have the following
specification :


Flow rate 11.5665 ( L/s )
Pump Head 26.42 ( PSI ).

From WILO Catalog we chose BAC 70/1353/2-Rseries.

Tank size 1.38798 Cubic meter for two
operating hour per day .

From Wessels Company Catalogue
depending on Pump flow rate (11.56 L/s)
(183.2 GPM) we select TXA 800 .

From Wessels Company Catalogue
depending on Pump flow rate (19.44 L/s)
(308 GPM) we select FXA-1200-WG.
Number of fixtures is to be determined to
start sizing for the stacks and horizontal
branches using special tables
ITEM
SIZE ( IN )
FIXTURE UNIT
BATHTUB
1.5
2
FLOOR DRAIN ( 4 )
4
6
LAVATORY
1.25
1
Water Closet ( Tank Type )
4
4
Space Name
Gray Water F.U
Gray Water
STACK Size
Black Water
(W.C) F.U
Black Water (W.C)
STACK Size
SINGLE ROOM (1&2)
24
4
8
4
SINGLE ROOM ( 3 )
15
3
4
4
SINGLE ROOM (4&5)
18
3
8
4
SINGLE ROOM ( 6 & 7)
18
3
8
4
SINGLE ROOM (9) + DOUBLE ROOM 16
24
4
8
4
SINGLE ROOM (10) + DOUBLE ROOM ( 7 )
18
3
8
4
DOUBLE ROOM ( 1 & 2 )
18
3
8
4
DOUBLE ROOM ( 3 & 4 )
18
3
8
4
DOUBLE ROOM ( 5 & 6 ) + SUITE
27
4
12
4
DOUBLE ROOM ( 8 & 9 )
24
4
8
4
DOUBLE ROOM ( 10 & 11 )
18
3
8
4
DOUBLE ROOM ( 12 & 13 )
24
4
8
4
DOUBLE ROOM ( 14 & 15 )
18
3
8
4
WAITING AND LUNGE
24
4
0
0
MAIL & Female CHANGE & Single Room (11) &
Lounge(1)
81
4
20
4
TOTAL FIXTURE
369
124
FLOOR
SHAFT 1 ( F.U )
SHAFT 2 ( F.U )
SHAFT 3 ( F.U )
SHAFT 4 ( FU )
B4
0
0
0
0
B3
12
112
66
36
B2
48
0
123
83
B1
52
18
36
0
GF
30
18
88
52
1
90
97
0
0
2
70
88
0
0
3
129
89
0
110
4
129
89
191
110
5
129
89
191
110
SUM
689
600
695
501
STA CK SIZE ( IN )
5
5
5
5
BUILDING DRAIN BETWEEN STAK
FU
SIZE
SHAFT 4 & 3
501
6
SHAFT 3 & 2
1196
8
SHAFT 2 & 1
1796
10
DRAIN
2485
10

Landing Valve and Cabinet
•
landing valve 2 ½ “
cabinet
1½“
•

(NFPA code)
(NFPA code)
Sprinklers system with heat and smoke
detectors .
Pipe Size ( in )
Flow Rate ( GPM )
Pressure Drop ( PSI/ft )
Path ( ft )
Pressure Drop ( PSI )
4
1000
0.2
32.8
6.56
4
750
0.1
82.984
8.2984
4
500
0.05
318.488
15.9244
2.5
250
0.15
29.52
4.428
Pump Selection
Residual Pressure ( PSI )
100
Flow Rate ( G.p.m )
1000
head ( PSI )
50.49264706
Head ( PSI )
213.8720871
Friction ( PSI )
35.2108
Flow Rate ( L/S )
54.66666667
Fitting ( PSI )
28.16864
head ( Kpa )
1473.826015
Total ( PSI )
213.8720871


Pump flow rate 1000 GPM.
Pump head 213.87 PSI
For electric and diesel pump we select from WILO
Company ( NPG 100-315A-110/2 ) series.
For Jockey Pump have the following specification
 Jockey flow rate 100GPM.
 Jockey head 213.87 PSI.
 From WILO Company we select TWI 6.18-22-B series .

From Wessels Company Catalogue
depending on Pump flow rate
(1000GPM) we select FXA-4000.

Tank Volume = ( 1000*3.78*60)/1000 =
226.8 (Cubic meter ).

tank sets beside the building .
Combustible Ceiling
Covered Area
Maximum Distance( m )
Light Hazardous
21
4.6
Residual Pressure( PSI )
Flow Rate ( gpm )
Duration Time ( s )
15
15
60
NO. Sprinklers
Pipe Size ( in )
2
1
3
1.25
5
1.5
10
2
20
2.5
40
3
65
3.5
100
4
160
5
275
6
NO. Sprinklers
Pipe Size ( in )
Q ( gpm)
Pressure Drop ( PSI/ft )
Path (ft)
Pressure Drop ( PSI)
1
1
15
0.107
20.664
309.96
3
1.25
45
0.022
14.76
664.2
4
1.5
60
0.173
2.624
157.44
10
2
150
0.279
9.184
1377.6
11
2.5
165
0.142
7.216
1190.64
14
2.5
210
0.2
7.544
1584.24
17
2.5
255
0.316
5.248
1338.24
20
2.5
300
0.427
4.264
1279.2
21
3
315
0.161
4.264
1343.16
36
3
540
0.33
37.72
20368.8
39
3
585
0.35
3.28
1918.8
45
3.5
675
0.37
5.576
3763.8
51
3.5
765
0.4
21.484
16435.26
78
4
1170
0.25
114.8
134316
Pump Selection
Residual Pressure ( PSI )
15
Flow Rate ( gpm )
1170
head ( PSI )
50.49264706
head ( PSI )
200.3978663
Friction ( PSI )
74.947344
Flow Rate (L/S )
63.96
Fitting ( PSI )
59.9578752
head ( Kpa )
1380.973051
Total ( PSI )
200.3978663

Medical gases systems in hospitals, are
essential for supplying piped oxygen,
nitrous oxide, nitrogen, carbon dioxide
and medical air to various parts of the
hospital.

These systems are usually highly
monitored by various computerized
alarm systems.
Oxygen.
 Medical Air.
 Medical Vaccum.

For shaft 2
Medical Gas Type
Medical Air
Medical Vaccum
Oxygen
Typical outlet Flow
1 SCFM
1 SCFM
1 SCFM
Allowable Pressure Loss
60 Psig
25 mmHg = 0.5 Psig
60 Psig
Number Of Outlet
12
12
12
Longest Path ( m )
55.4
55.4
55.4
Equivelent Length ( ft/100 )
2.73568
2.73568
2.73568
Pressure drop ( Psi / 100 ft )
1.8344
0.18344
1.8344

Oxygen Medical Air Pipe sizing.
section
Number Of Outlet
Diversity factor ( % )
Effective SCFM
Effective SCFM
Size ( in )
A-B
1
100
1
1
0.5
B-C
2
100
1
1
0.5
C-D
3
100
1
1
0.5
D-E
4
75
3
3
0.5
E-F
5
75
3.75
4
0.5
F-G
6
75
4.5
5
0.5
G-H
7
75
5.25
6
0.5
H-I
8
75
6
6
0.5
I-J
9
75
6.75
7
0.5
J-K
10
75
7.5
8
0.5
K-L
11
75
8.25
9
0.5
L-M
12
75
9
9
0.5
M-N
13
33
4.29
5
0.5
N -O
14
33
4.62
5
0.5
O-P
15
33
4.95
5
0.5
P-Q
16
33
5.28
6
0.5
Q-S
17
33
5.61
6
0.5
S-T
18
33
5.94
6
0.5
T-U
19
33
6.27
7
0.5
U-V
38
33
12.54
13
0.75
V-W
57
33
18.81
19
0.75

Medical Vaccum Pipe sizing
section
Number Of Outlet
Diversity factor ( % )
Effective SCFM
Effective SCFM
Size ( in )
A-B
1
100
1
1
0.75
B-C
2
100
1
1
0.75
C-D
3
100
1
1
0.75
D-E
4
75
3
3
0.75
E-F
5
75
3.75
4
0.75
F-G
6
75
4.5
5
0.75
G-H
7
75
5.25
6
1
H-I
8
75
6
6
1
I-J
9
75
6.75
7
1
J-K
10
75
7.5
8
1
K-L
11
75
8.25
9
1
L-M
12
75
9
9
1
M-N
13
33
4.29
5
0.75
N -O
14
33
4.62
5
0.75
O-P
15
33
4.95
5
0.75
P-Q
16
33
5.28
6
1
Q-S
17
33
5.61
6
1
S-T
18
33
5.94
6
1
T-U
19
33
6.27
7
1
U-V
38
33
12.54
13
1
V-W
57
33
18.81
19
1.25
Selection Criteria
Type
 Speed
 Size
 High
 Quantity
 Applications


We use the stander size , speed and quantity that
used in the hospital From MRL Passenger Lift
Range Company with Speed of 1m/s .
Sizing For Patients (bed)Elevator
load
Entrance
layout
Kg/person
1600/21
Through
()
Internal Shaft Diminution
Width
(mm)
Depth
(mm)
2400
2850
Door Type
2PSO
automatic
Doors Opining (at a
height 2000mm)
PIT
Headroom
Width
(mm)
Depth(mm)
Height
(mm)
1100
1300
3600
Doors Opining (at a
height 2000mm)
PIT
Headroom
Width
(mm)
Depth(mm)
Height
(mm)
900
1200
3450
Sizing For Passenger Elevator
load
Entrance
layout
Kg/person
800/ 10
Single
Internal Shaft Diminution
Width
(mm)
Depth
(mm)
1750
2050
Door Type
2PSO
automatic