TOTAL DEMAND CALCULATION
Fixtures type
FIXTURES
Private
Weight in Fixture units
Water closet (flush valve)
Cold
6
Hot
0
Total
6
Water closet (flush tank)
Water Bidet
3
0.75
0
0.75
3
1
Hose for W.C
Lavatory (& H.B.)
Janitor Sink
Service sink
Shower
Bath tub
Kitchen sink
Dishwashing machine
Laundry
Ablution (Public)
Urinal (1" flush valve)
Urinal (3/4" flush valve)
Urinal (flush tank)
Total Fixture Units
WATER DEMAND ( GPM )
0.75
0.75
0.75
1.5
1.5
1.5
1.5
0
1.5
1
10
5
3
0.75
0.75
0.75
1.5
1.5
1.5
1.5
1
1.5
1
0
0
0
1
1
1
2
2
2
2
1
2
1.5
10
5
3
WATER DEMAND ( m / h )
3
Quantity
Total weight in fixture units
Cold
0
Hot
0
Total
0
16
10
48
7.5
0
7.5
48
10
16
30
12
22.5
0
1.5
15
4.5
4.5
0
1.5
0
0
0
0
12
22.5
0
1.5
15
4.5
4.5
1
1.5
0
0
0
0
16
30
0
2
20
6
6
1
2
0
0
0
0
117
70
47.3 GPM
35.0 GPM
10.74 m3/h
7.95 m3/h
141
52.7 GPM
11.97 m3/h
1
10
3
3
1
1
Head loss calculation using
(1)
COLBROOK Formula
DH Total loss
Total heal (DH+GH) / pipe
Accumulative Pressure
dh(2) Local loss
1.0 discharge outlet
2.0 Strainer
dh(1) Liner loss
Loss m per 100 m
27.8
F Liner loss factor
100
RE Reynolds number
0.01
V Mean Velocity
GH Static heal
PVC 93.6
Total local factors
110
0.5 reducer
pumps to A
0.9 tee
l/s
0.3 elbow ( 90 leg.)
m3/h
0.2 elbow ( 45 leg.)
mm
2.0 check valve
K Pipe roughness
8.0 Globe valve
L Pipe length
mm
0.6 Butterfly valve
ID Pipe Inner diameter
DN
0.2 gate valve
DN Nominal diameter
no.
Q Flow rate
no. part of pipe
Local factors of fittings
1/1
m/s
1/1
1/1
5.7
4.03697 377860.74 0.01501 13.3
0.13 4.735 4.87
7.87 7.868
A-B
110
pvc
93.6
0.01
0.28
0.04037 3778.6074 0.04062
###
###
###
7.868
B-C
110
pvc
93.6
0.01
0.28
0.04037 3778.6074 0.04062
###
###
###
7.868
C-D
110
pvc
93.6
0.01
0.28
0.04037 3778.6074 0.04062
###
###
###
7.868
D-E
110
pvc
93.6
0.01
0.28
0.04037 3778.6074 0.04062
###
###
###
7.868
E-F
110
pvc
93.6
0.01
0.28
0.04037 3778.6074 0.04062
###
###
###
7.868
F-G
110
pvc
93.6
0.01
0.28
0.04037 3778.6074 0.04062
###
###
###
7.868
F-G
110
pvc
93.6
0.01
0.28
0.04037 3778.6074 0.04062
###
###
###
7.868
F-G
110
pvc
93.6
0.01
0.28
0.04037 3778.6074 0.04062
###
###
###
7.868
F-G
110
pvc
93.6
0.01
0.28
0.04037 3778.6074 0.04062
###
###
###
7.868
F-G
110
pvc
93.6
0.01
0.28
0.04037 3778.6074 0.04062
###
###
###
7.868
F-G
110
pvc
93.6
0.01
0.28
0.04037 3778.6074 0.04062
###
###
###
7.868
F-G
110
pvc
93.6
0.01
0.28
0.04037 3778.6074 0.04062
###
###
###
7.868
F-G
110
pvc
93.6
0.01
0.28
0.04037 3778.6074 0.04062
###
###
###
7.868
F-G
110
pvc
93.6
0.01
0.28
0.04037 3778.6074 0.04062
###
###
###
7.868
F-G
110
pvc
93.6
0.01
0.28
0.04037 3778.6074 0.04062
###
###
###
7.868
F-G
110
pvc
93.6
0.01
0.28
0.04037 3778.6074 0.04062
###
###
###
7.868
F-G
110
pvc
93.6
0.01
0.28
0.04037 3778.6074 0.04062
###
###
###
7.868
F-G
110
pvc
93.6
0.01
0.28
0.04037 3778.6074 0.04062
###
###
###
7.869
F-G
110
pvc
93.6
0.01
0.28
0.04037 3778.6074 0.04062
###
###
###
7.869
F-G
110
pvc
93.6
0.01
0.28
0.04037 3778.6074 0.04062
###
###
###
7.869
F-G
110
pvc
93.6
0.01
0.28
0.04037 3778.6074 0.04062
###
###
###
7.869
F-G
110
pvc
93.6
0.01
0.28
0.04037 3778.6074 0.04062
###
###
###
7.869
TOTAL
23
Static head
Outlet pressure (15 psi )
0.13 4.735 4.87
=
=
3.00 m
10.35 m
7.87
total friction loss
total dynamic head
=
=
4.87 m
18.22 m
HEAD LOSS CALCULATION ( COLBROOK formula )
Strainer
Total local factors
GH Static heal
V Mean Velocity
RE Reynolds number
F Liner loss factor
Loss m per 100 m
dh(1) Liner loss
dh(2) Local loss
DH Total loss
Total heal (DH+GH) / pipe
Accumulative Pressure
Net Pressure at end
discharge outlet
1/1
4.4
2.000
1.10795 59386.173 0.02082 2.43
0.1
0.275 0.37
2.37
2.37 6.26645
0.17 0.094 0.27
6.27
8.64
11.0188
11
11
11.1
22.1
3.5
6.000
0.72666 68014.933 0.01997 0.57
2.2
0.9
0.000
0.31973
29926.57 0.02377 0.13
0.005
4.40
4.4
0.9
11.000
0.63946 59853.141 0.02049 0.46
0.019 0.02
4.40
4.4
2.4
11.000
0.63946 59853.141 0.02049 0.46
0.05
0.01
2.50
2.5
(B3 to B1)
110
PVC 93.6
30
0.01
5.00
(B2 to B1)
110
PVC 93.6
0.01
2.20
(B1 to GF)
110
PVC 93.6
0.01
HORIZONTAL GF TO MH
110
PVC 93.6
10
0.01
44
L/S
8.6
0.5 reducer
0.9 tee
1/1
PVC 53.6
2.50
m/s
l/s
63
Required capacity of the pump
L/S
Pumps to riser B3
TOTAL
1/1
0.3 elbow ( 90 leg.)
mm
0.2 elbow ( 45 leg.)
K Pipe roughness
check valve
L Pipe length
mm
ID Pipe Inner diameter
DN
0.2 gate valve
DN Nominal diameter
no.
Q Flow rate
no. part of pipe
Local factors of fittings
0.05
0.1
0.27 0.369 0.64
8.64
Total sewage/drainage flow rate
no.
FIXTURES
1 Water closet (flush tank/valve)
2
Arabic W.C.(flush tank)
Water Bidet
Lavatory
Shower
Bath tub
Kitchen sink
Dishwashing machine
Laundry
10
Urinal ( flush tank )
11
Urinal ( flush valve )
12
Floor drain
Fixture Units
Quantity
Total
6.00
6.00
1.00
1.00
2.00
2.00
2.00
2.00
2.00
2.00
4.00
2.00
12.00
0.00
2.00
4.00
0.00
2.00
0.00
0.00
0.00
0.00
0.00
8.00
0.00
28.00
2
4
1
13
Total Fixture Units
Estimated flow l/s (from chart)
GPM
14.00
Total sewage/drainage flow rate
no.
FIXTURES
1 Water closet (flush tank/valve)
2
Arabic W.C.(flush tank)
Water Bidet
Lavatory
Shower
Bath tub
Kitchen sink
Dishwashing machine
Laundry
10
Urinal ( flush tank )
11
Urinal ( flush valve )
12
Floor drain
Fixture Units
Quantity
Total
6.00
6.00
1.00
1.00
2.00
2.00
2.00
2.00
2.00
2.00
4.00
2.00
12.00
0.00
1.00
4.00
4.00
2.00
2.00
0.00
0.00
0.00
0.00
14.00
0.00
39.00
1
4
2
1
1
13
Total Fixture Units
Estimated flow l/s (from chart)
GPM
19.50
