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Power Point
- 4. Static Head
Suction Head
( )
Suction Lift
Discharge Static Head
Total dynamic head ( ) = Static head +
- 7. kW = QH
102
kW =
Q = lps
H =
=
- 8. 0.37 kW (0.5 HP) 0.75 kW (1 HP) 1.12 kW (1.5 HP)
1.49 kW (2 HP) 2.24 kW (3 HP) 3.73 kW (5 HP)
5.60 kW (7.5 HP) 7.46 kW (10 HP) 11.19 kW (15 HP)
14.92 kW (20 HP) 18.65 kW (25 HP) 22.38 kW (30 HP)
29.84 kW (40 HP) 37.30 kW (50 HP) 44.76 kW (60 HP)
55.95 kW (75 HP) 74.60 kW (100 HP)
- 9. EX I
(Contrifugal pump)
20 lps
50
1
12
70%
- 10. Discharge static head = 50
Suction head = 1 = 10
= 50 – 10 + 12 = 52
kW = (20) (52) = 14.56
(106) (0.7)
20 lps 52 14.92
kW
- 12. 380 lpm (100 gpm)
40
380 lpm
30
15
(cooling tower)
15
- 20. = 1.04 lpm/fixture
= (1.04)(500) = 520 lpm
= 1 lps = 60 lpm
= 1.2 lps = 72 lpm
= (520+60+72) = 10.87 lps
60
= (520+60)(30) + (72)(15)
= 18.48 m3
20 m3
- 21. = QH
102
= (10.87)(30)
(102) (0.7)
= 4.57 kw
10.87 lps 30 m. 5.6 kW
- 26. Example I
4
3.5 60 FU
flush
tank angle valve
- 27. = (60)(4) = 240 FU
Hunter’s curve 75 gpm
= 4.73 lps
= (3.5)(4) = 14 m
0.6 =6 m
30%
=(1.3)(14)+6 = 24.2 m
60 %
QH = (4.73)(24.2) = 1.87 kW
102 (102)(0.6)
- 28. 2 65 : 65 %
Q = (4.73)(0.65) = 3 lps
= (3)(24.2) = 1.19 kW
(102)(0.6)
2
3 lps 24 m 1.12 kW