[Utilities – Water Supply and Drainage Section] 20181122
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This post was last edited by hesonchang214 on 2018-11-22 08:51. The maximum daily water demand in a certain city is 150,000 m3/day, with a time variation coefficient of 1.30. The water used by the water treatment plant itself accounts for 5%, and there are regulation tanks in the pipeline network; the maximum water supply rate to the pipeline network is 900 m3/h. What are the designed flow rates for the primary pump room and the secondary pump room? (Unit: m3/h) Solution: The designed flow rate for the primary pumping station is: 150000×(1+5%)/24 = 6562.5 m3/h. The designed flow rate for the secondary pumping station is: 150000/24×1.30 – 900 = 7225 m3/h
6563m3/h, 7225m3/h
6563m3/h； 7225m3/h
6563m3/h, 7225m3/h
The designed flow rate for the primary pumping station is: 150000×(1+5%)/24 = 6562.5 m3/h. The designed flow rate for the secondary pumping station is: 150000/24×1.30–900 = 7225 m3/h
6563m3/h, 7225m3/h
The maximum daily water demand in a certain city is 150,000 m3/day, with a time variation coefficient of 1.30. The water used by the water treatment plant itself accounts for 5%, and there are regulating tanks in the pipeline network; the maximum water supply rate to the pipeline network is 900 m3/h. What are the designed flow rates for the primary pump room and the secondary pump room?
6562.5m3/h，7225m3/h
Solution: The designed flow rate for the primary pumping station is: 150000×(1+5%)/24 = 6562.5 m3/h. The designed flow rate for the secondary pumping station is: 150000/24×1.30 – 900 = 7225 m3/h
6563m3/h, 7225m3/h