1. Mechanical System For AL-Rehan Hospital
Supervisor Students
Dr. EYAD ASSAF Muhammad Shalan
Muhammad Jitan
JehaD Odeha
JehaD Zuhd

2. Objective
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.

3. HVAC
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.

4. Location Building Description 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.

5. Al-Rehan Hospital consist of tenth floor ,four Basement Floor , Ground Floor and Five Up Floor and each Floor has approximately 1500 m^2

6. Inside and Outside Design Conditions
Parameter
Tin To
Tun Tg
Φin
Φout
Win
Wout
Winter 22
4.7 13
9.7
50%
70%
8.4
3.9
Summer 24 30 28 29
52%
13.7

7. Overall Heat Transfer coefficient,Uoverall
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

8. External walls construction
composition
thickness
K(w/m.C)
R th
firm stone
0.1
2.2
0.0455
concrete ( light )
1.75
0.0571
insulation (polystyrene)
0.03
0.04
0.7500
cement brick(air gap)
0.72
0.1389
cement plaster
0.02
1.2
0.0167
sum
0.35
1.0082 Ri
0.12 Ro
Ri = 0.12 m2.C\W
Ro= 0.03 m2.C\W
Rtot= Ri+Rw+Ro
Rtot= = (m^2).C/W
U= W/(m^2).C

9. Internal walls construction
Material
Thickness (m)
Thermal conductivity "K"(W/m.C’’)
Thermal resistance
"R" (m2.C/W)
Plaster
0.02
1.2
Block
0.1
0.72
Sum
0.14
Ri = 0.12 m2.C\W
Ro= 0.03 m2.C\W
Rtot= Ri+Rw+Ro
Rtot= = (m^2).C/W
U= W/(m^2).C

10. insulation (polystyrene)
Ceiling Construction
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
0.0171
cement brick(air gap)
0.17
0.72
0.2361
cement plaster
1.2
0.0167
sum
0.32
1.0735 Ri
0.1 Ro
Ri = 0.12 m2.C\W
Ro= 0.03 m2.C\W
Rtot= Ri+Rw+Ro
Rtot= = (m^2).C/W
U= W/(m^2).C

11. Windows and Doors
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

12. Overall heat transfer coefficient (w/m2.k)
Summary
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
Windows
3.5
Doors
2.4

13. Heating Load Calculation
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.

14. 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 )

15. Sample Calculation 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

16. Conduction heat gain
Qs = U*A*∆T
Q.ext = *14* = Watt.
Q. un = *32.2*8.65 = Watt.
Q cel. = *18.6*17.3 = Watt.
Qs.cond = Q.ext + Q.un + Q.cilling
Qs.cond= Watt.
Ventilation and Infiltration heat gain
Q.s.ven =1.2*5*18.6 *17.3 = Watt
Q.tot = = Watt

17. Room
Qs, cond. (W)
Qs, vent. (W)
Q tot ( W )
Single Room (1)
Single Room (2)
1972.2
Single Room (3)
2179.8
Single Room (4)
Single Room (5)
1868.4
Single Room (6)
Single Room (7)
Single Room (8)
1764.6
Single Room (9)
3217.8
Single Room (10)
1349.4
Single Room (11)
Double Room(1)
Double Room(2)
Double Room(3)
2439.3
Double Room(4)
Double Room(5)
Double Room(6)
Double Room(7)
Double Room(8)
Double Room(9)
Double Room(10)
Double Room(11)
Double Room(12)
Double Room(13)
Double Room(14)
Double Room(15)
Double Room(16)
Main Carador (1)
Main Carador (2)
9861
Small Corridor
Doctor Office(1)
830.4
Doctor Office (2)
1557
Lounge
1141.8
Lounge (1)
Male Change
Female Change
1245.6
Nurse Station
34.634
Waiting
Suite Room
11418
Clean & Dirty UT.
Sum

18. Total Heating Loads

19. Boiler Selection Boiler specification
Domestic hot water load KW
Heating Load KW
Boiler Capacity = KW
Annual fuel consumption of diesel is cubic meter per year .

20. From Obrien boilers Company Catalogue
we chose
REX K120 F with capacity of 1200 KW

21. Pump Specification

22. Pump Selection
Required pump for boiler have the following specification
pump head PSI .
pump flow rate L/s.
From WILO catalog we chose NL 50/ Hz series .

23. Expansion Tank
From Wessels Company Catalogue depending on pump flow rate(20.17 L/s) (319.7 GPM )we select TXA 1400

25. Coaling Load Calculation
EQUATIONS
For Ceiling: Q=U*A*(CLTD)corr
(CLTD)corr = (CLTD + LM) K + (25.5 – Ti )+ (To – 29.4)
CLTD: cooling load factor K:color factor K=1 dark color 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

26. For Glass
Heat transmitted through glass Q=A*(SHG)*(SC)*(CLF) SHG: solar heat gain SC: shading coefficient CLF: cooling load factor
Convection heat gain Q=U*A*(CLTD)corr
For people Qs=qs*n*CLF 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

28. Sample Calculations For Single Room (1)
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 = W
Transmission heat gain (window) = W
Convection heat gain = U*A*CLTD.corr = W

29. Heat load due to equipment
Convection heat gain
U*A*CLTDcorr = W
Load from ventilation and infiltration
Qs vent/inf = 1.2*Vvent* ∆t = 1.2*75.8*7.4 = W
QL vent = 3*Vvent*(Wi-Wo) = 3*75.8*6.5 = 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 = W
Heat load due to equipment
Qs = 522 W
QL = 0 W
Total sensible load ∑Qs = W
Total latent load = ∑Ql = W
Total load = W

30. Total heat loss for every room
Qs (W)
Ql (W)
V vent(L/S)
total loss (W)
Total loss (KW)
single Room (1) 93
single Room (2)
single Room (3)
106
single Room (4)
single Room (5)
single Room (6)
single Room (7)
single Room (8) 97
single Room (9)
158
single Room (10) 65
single Room (11)
115
Double Room(1)
118.5
Double Room(2)
Double Room(3)
120
Double Room(4)
117.5
Double Room(5)
118
Double Room(6)
119
Double Room(7) 98
Double Room(8)
108.5
Double Room(9)
136.5
Double Room(10)
Double Room(11)
Double Room(12)
Double Room(13)
Double Room(14)
Double Room(15)
Double Room(16)
main carador (1)
8212.5
475
main carador (2)
567.5
small corridor
724 40
doctor office(1)
942.35
56.5
doctor office (2)
76.5
lounge
9423.5
565
lounge (1)
80.5
male change
1042 60
female change
1280.5 75
nurse station
waiting
9625
550
suite room
2619.8
162
clean & dirty UT.
96.5
Sum
6022

31. FLOOR
Q total ( kW )
Mass Flow Rate(L/s) B4
59.1 B3
71.7 B2
157.16 B1
143.42 GF
172.69 1
130 2
152.89 3
116.2 4 5
150.7
SUM

32. Chiller Selection 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 .

33. Pump Selection Friction loss = 66.17 PSI Fitting loss = 33.08 PSI
Head loss = PSI.
Pump head = PSI
Pump Flow rate = L/s
From WILO catalog we select
SCP 150/580HA series.

34. Pressure Tank Selection
From Wessels Company Catalogue depending on Pump flow rate (19.44 L/s) (308 GPM) the suitable pressure tank FXA-1200

36. Fan Coil Unit For Single Room (1) Cooling Load = 3.35 KW
V cir. = L/s
V c.f.m = CFM
From Petra Catalogue we select
DCC 20 H/C 4Rows Model

37. F.C.U #
Load (CFM)
Model
F.C 1
DCC 20 H/C 4Rows
F.C 2
F.C 3
F.C 4
F.C 5
F.C 6
F.C 7
F.C 8
F.C 9
F.C 10
DCC 8 H/C 4Rows
F.C 11
F.C 12
F.C 13
F.C 14
F.C 15
F.C 16
F.C 17
F.C 19
F.C 20
F.C 21
F.C 22
F.C 23
F.C 24
F.C 25
F.C 26
F.C 27
F.C 28
DCC 30 H/C 4Rows
F.C 29
F.C 30
DCC 6 H/C 4Rows
F.C 31
F.C 32
F.C 33
F.C 34
DCC 10 H/C 4Rows
F.C 35
F.C 36
F.C 37
F.C 38
DCC 24 H/C 4Rows
F.C 39

38. Pipe Sizing ( FCU 1) Supply Pipe sizing m = (Qs +Ql.) / (4180*6)
m = ( ) / (4180*6) = L/s
Pressure drop assumption 400 pa/m.
Preferred size at operating condition is 0.75 in

39. SHAFT ( 1 )
F.C.U
Heat loss (W)
m ( L/s)
Friction
Size ( in )
F.C 28 A
400 2
F.C 12
1.5
F.C 1
F.C 13
F.C 2
1.25
F.C 14
F.C 3
F.C 15 1
F.C 32
F.C 16
0.75

40. Duct Sizing ( FCU 1) Qt = 3.35 kw
V circulation air = Qt / 1.2 * (Tcir. – Ti)
V circulation = 3.35 / (1.2* 10) = m3/ s
Pressure drop = 0.55 pa / m
velocity = 4.1 m / s
A = 0.11 m2
D = m
High = 0.3 m
Width = m

41. F.C.U #
Load (CFM)
HIGHT
A - B
B - C
C - D
D - E
E - F
F - G
G - H
H - I
F.C 1
0.3
0.425
0.275
0.2
F.C 2
F.C 3
0.45
0.325
F.C 4
F.C 5
F.C 6
F.C 7
F.C 8
F.C 9
0.625
0.5
0.375
F.C 10
F.C 11
0.475
0.35
F.C 12
0.525
0.4
F.C 13
F.C 14
F.C 15
F.C 16
F.C 17
F.C 19
F.C 20
F.C 21
0.55
F.C 22
F.C 23
F.C 24
F.C 25
F.C 26
F.C 27
F.C 28
0.875
0.775
0.65
0.25
F.C 29
1.025
0.9
0.53
0.28
F.C 30
0.225
F.C 31
F.C 32
F.C 33
0.675
F.C 34
F.C 35
F.C 36
F.C 37
F.C 38
0.725
0.6
F.C 39

42. Fresh Air Duct For single room ( 1 ) V.vent. = ( L/S/ Area ) * Area
Pressure drop = 0.55 pa / m
velocity = 3 m / s
A = m2
D = 0.2 m
High = 0.2 m
Width = m

44. SECTION V vent(L/S) SHAFT ( 1 ) PA/M HIGHT WIDTH A - B 1173.5 0.55 0.3
0.875
B - C
936
0.7
C - D
843
0.65
D - E
724.5
0.575
E - F
609.5
0.5
F - G
516.5
0.45
G - H
396.5
0.35
H - I
290.5
0.275
I - J
173
0.2
STATIC PRESSURE PA
13.75

45. Fresh Air Fan Selection
Fan specification
Flow rate = L/s
Static Pressure = pa
From Rosenberg RoVent catalog we select DHAD series .

46. Exhaust Air Duct velocity = 2 m / s D = 0.136 m High = 0.2 m
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 = m
High = 0.2 m
Width = 0.75 m

47. SECTION V (L/S) PA/M HIGHT WIDTH A - B 210 0.55 0.2 0.325 B - C 180
C - D
150
0.25
D - E
120
0.225
E - F 90
0.175
F - G 60
0.125
G - H 30
0.75
STATIC PRESSURE PA
13.75

48. Exhaust Fan Selection Fan specification Flow rate = 210( L/s ).
Static Pressure = pa
From Rosenberg RoVent catalog we select DHAD series .

51. Air Handling Unit Selection

52. For Operation Theaters in the First floor
Three O.T have Load of ( CFM).
The other have load of ( 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 ( CFM)
For Operation Theaters in the B1 floor
Operation Theater load of ( CFM)

53. From PETRA Catalogue the minimum Available AHU Load is 1200 CFM
So we select PAH H C 12 C6 H4 X4

54. Plumbing System
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

55. Sample Calculation

56. SINGLE ROOM (9) + DOUBLE ROOM 16
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)
SINGLE ROOM ( 6 & 7)
SINGLE ROOM (9) + DOUBLE ROOM 16
SINGLE ROOM (10) + DOUBLE ROOM ( 7 )
DOUBLE ROOM ( 1 & 2 )
DOUBLE ROOM ( 3 & 4 )
DOUBLE ROOM ( 5 & 6 ) + SUITE 18
10.8 33
DOUBLE ROOM ( 8 & 9 )
DOUBLE ROOM ( 10 & 11 )
DOUBLE ROOM ( 12 & 13 )
DOUBLE ROOM ( 14 & 15 )
WAITING AND LUNGE 1
MAIL CHANGE 16
9.6 26
F CHANGE
Single Room (11) and Lounge(1)

57. Section ( H.W.S ( L/S ) SIZE (in) ( H.W.S ) ( H.W.R ) ( L/S )
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
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
B - C
0.68
0.75
0.47
0.5
C - D
D - E
( C.W.S ) ( L/S )
SIZE (in) ( C.W.S )
1.288
0.965

59. Residual Pressure ( PSI )
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 5
SUM ( F.U )
823.25
FLOW RATE ( L/s )
19.438
SIZE ( IN )
3.5
TANK SIZE
Pump Specification
Residual Pressure ( PSI )
Friction ( PSI )
Fitting ( PSI )
Head ( PSI )
Total Head ( PSI )
Flow Rate (L/S )

60. Pump Selection Cold Water Pump have the following specification :
Flow rate L/s
Pump Head PSI
From WILO Catalog we chose NL 50/ Hz series.
Tank size Cubic meter for two operating hour per day .

61. Hot Water Pump have the following specification :
Flow rate ( L/s )
Pump Head ( PSI ).
From WILO Catalog we chose BAC 70/135-3/2-Rseries.
Tank size Cubic meter for two operating hour per day .

62. Pressure Tank Selection
From Wessels Company Catalogue depending on Pump flow rate (11.56 L/s) (183.2 GPM) we select TXA 800 .

64. Expansion Tank Selection
From Wessels Company Catalogue depending on Pump flow rate (19.44 L/s) (308 GPM) we select FXA-1200-WG.

67. Drainage System
Number of fixtures is to be determined to start sizing for the stacks and horizontal branches using special tables

68. Water Closet ( Tank Type )
ITEM
SIZE ( IN )
FIXTURE UNIT
BATHTUB
1.5 2
FLOOR DRAIN ( 4 ) 4 6
LAVATORY
1.25 1
Water Closet ( Tank Type )

69. Black Water (W.C) STACK Size
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
SINGLE ROOM ( 3 ) 15 3
SINGLE ROOM (4&5) 18
SINGLE ROOM ( 6 & 7)
SINGLE ROOM (9) + DOUBLE ROOM 16
SINGLE ROOM (10) + DOUBLE ROOM ( 7 )
DOUBLE ROOM ( 1 & 2 )
DOUBLE ROOM ( 3 & 4 )
DOUBLE ROOM ( 5 & 6 ) + SUITE 27 12
DOUBLE ROOM ( 8 & 9 )
DOUBLE ROOM ( 10 & 11 )
DOUBLE ROOM ( 12 & 13 )
DOUBLE ROOM ( 14 & 15 )
WAITING AND LUNGE
MAIL & Female CHANGE & Single Room (11) & Lounge(1) 81 20
TOTAL FIXTURE
369
124

71. FLOOR
SHAFT 1 ( F.U )
SHAFT 2 ( F.U )
SHAFT 3 ( F.U )
SHAFT 4 ( FU ) B4 B3 12
112 66 36 B2 48
123 83 B1 52 18 GF 30 88 1 90 97 2 70 3
129 89
110 4
191 5
SUM
689
600
695
501
STA CK SIZE ( IN )

72. BUILDING DRAIN BETWEEN STAKFU
SIZE
SHAFT 4 & 3
501 6
SHAFT 3 & 2
1196 8
SHAFT 2 & 1
1796 10
DRAIN
2485

76. Fire Fighting System Landing Valve and Cabinet
landing valve 2 ½ “ (NFPA code)
cabinet ½ “ (NFPA code)
Sprinklers system with heat and smoke detectors .

77. Landing Valve and Cabinet

78. Pressure Drop ( PSI/ft ) Path ( ft ) Pressure Drop ( PSI )
Pipe Size ( in )
Flow Rate ( GPM )
Pressure Drop ( PSI/ft )
Path ( ft )
Pressure Drop ( PSI ) 4
1000
0.2
32.8
6.56
750
0.1
82.984
8.2984
500
0.05
2.5
250
0.15
29.52
4.428
Pump Selection
Residual Pressure ( PSI )
100
Flow Rate ( G.p.m )
1000
head ( PSI )
Head ( PSI )
Friction ( PSI )
Flow Rate ( L/S )
Fitting ( PSI )
head ( Kpa )
Total ( PSI )

79. Pump Selection Pump flow rate 1000 GPM. Pump head 213.87 PSI
For electric and diesel pump we select from WILO Company ( NPG A-110/2 ) series.
For Jockey Pump have the following specification
Jockey flow rate 100GPM.
Jockey head PSI.
From WILO Company we select TWI B series .

80. Pressure Tank Selection
From Wessels Company Catalogue depending on Pump flow rate (1000GPM) we select FXA-4000.

82. Tank Volume Tank Volume = ( 1000*3.78*60)/1000 = 226.8 (Cubic meter ).
tank sets beside the building .

83. Sprinklers

84. Residual Pressure( PSI )
Combustible Ceiling
Covered Area
Maximum Distance( m )
Light Hazardous 21
4.6
Residual Pressure( PSI )
Flow Rate ( gpm )
Duration Time ( s ) 15 60
NO. Sprinklers
Pipe Size ( in ) 2 1 3
1.25 5
1.5 10 20
2.5 40 65
3.5
100 4
160
275 6

85. Pressure Drop ( PSI/ft )
NO. Sprinklers
Pipe Size ( in )
Q ( gpm)
Pressure Drop ( PSI/ft )
Path (ft)
Pressure Drop ( PSI) 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 14
210
0.2
7.544 17
255
0.316
5.248 20
300
0.427
4.264
1279.2 21
315
0.161 36
540
0.33
37.72 39
585
0.35
3.28
1918.8
3.5
675
0.37
5.576
3763.8 51
765
0.4
21.484 78
1170
0.25
114.8
134316

86. Residual Pressure ( PSI )
Pump Selection
Residual Pressure ( PSI ) 15
Flow Rate ( gpm )
1170
head ( PSI )
Friction ( PSI )
Flow Rate (L/S )
63.96
Fitting ( PSI )
head ( Kpa )
Total ( PSI )

90. Medical Gases
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.

91. Pipe Sizing
Oxygen.
Medical Air.
Medical Vaccum.

92. Allowable Pressure Loss 60 Psig 25 mmHg = 0.5 Psig
For shaft 2
Medical Gas Type
Medical Air
Medical Vaccum
Oxygen
Typical outlet Flow
1 SCFM
Allowable Pressure Loss
60 Psig
25 mmHg = 0.5 Psig
Number Of Outlet 12
Longest Path ( m )
55.4
Equivelent Length ( ft/100 )
Pressure drop ( Psi / 100 ft )
1.8344

93. Oxygen Medical Air Pipe sizing.

94. section
Number Of Outlet
Diversity factor ( % )
Effective SCFM
Size ( in )
A - B 1
100
0.5
B - C 2
C - D 3
D - E 4 75
E - F 5
3.75
F - G 6
4.5
G - H 7
5.25
H - I 8
I - J 9
6.75
J - K 10
7.5
K - L 11
8.25
L - M 12
M - N 13 33
4.29
N -O 14
4.62
O - P 15
4.95
P - Q 16
5.28
Q - S 17
5.61
S - T 18
5.94
T - U 19
6.27
U - V 38
12.54
0.75
V - W 57
18.81

95. Medical Vaccum Pipe sizing

96. section
Number Of Outlet
Diversity factor ( % )
Effective SCFM
Size ( in )
A - B 1
100
0.75
B - C 2
C - D 3
D - E 4 75
E - F 5
3.75
F - G 6
4.5
G - H 7
5.25
H - I 8
I - J 9
6.75
J - K 10
7.5
K - L 11
8.25
L - M 12
M - N 13 33
4.29
N -O 14
4.62
O - P 15
4.95
P - Q 16
5.28
Q - S 17
5.61
S - T 18
5.94
T - U 19
6.27
U - V 38
12.54
V - W 57
18.81
1.25

100. Elevator
Selection Criteria
Type
Speed
Size
High
Quantity
Applications

101. Elevator Selection
We use the stander size , speed and quantity that used in the hospital From MRL Passenger Lift Range Company with Speed of 1m/s .

102. Sizing For Patients (bed)Elevator Sizing For Passenger Elevator
load
Entrance layout
Internal Shaft Diminution
Door Type
Doors Opining (at a height 2000mm)
PIT
Headroom
Kg/person
Width
(mm)
Depth
Depth(mm)
Height
1600/21
Through ()
2400
2850
2PSO automatic
1100
1300
3600
Sizing For Passenger Elevator
load
Entrance layout
Internal Shaft Diminution
Door Type
Doors Opining (at a height 2000mm)
PIT
Headroom
Kg/person
Width
(mm)
Depth
Depth(mm)
Height
800/ 10
Single
1750
2050
2PSO automatic
900
1200
3450

103. Thank YOU