FAQ

Comparison of water consumption between closed cooling tower and open cooling tower

Author：Trlon Views: Time:2021-07-26

　　China trlon air conditioner provides cooling tower water consumption data information with the following calculation formulas:

　　Closed cooling tower spray water loss:

　　is calculated based on 300m⊃3;/h, 37℃-32℃ cooling capacity, spraying water flow rate is 270m⊃3;/h

　　Drifting rate: 0.001% of spraying water flow, water consumption per hour is 0.0027m⊃3;/h

　　Evaporation rate: 0.8% of spray water flow, water consumption per hour 2.16m⊃3;/h

　　Internal circulating water loss: Determined according to the pipeline installation, if the internal pipeline does not seepage or leaks, it can be regarded as not calculated.

　　The total water consumption per hour is 2.1627m⊃3;/h, and it operates at full load for 24 hours a day, and the average daily water consumption is 51.9m⊃3;/h. It is calculated based on the three seasons of operation in spring, autumn and summer in the whole year, and closed in winter. The detailed table is below.

　　Open cooling tower spray water loss:

　　is calculated based on 300m⊃3;/h, 37℃-32℃ cooling capacity, spraying water flow rate is 300m⊃3;/h

　　Drifting rate: 0.3% of spraying water flow, water consumption per hour 0.9m⊃3;/h

　　Evaporation rate: 0.8% of spray water flow, water consumption per hour 2.4m⊃3;/h

　　The total water consumption per hour is 3.3m⊃3;/h, operating at full load for 24 hours a day, the average daily water consumption is 79.2m⊃3;/h, in which the cost loss and the loss of potion, softener, and pipelines Time-consuming maintenance caused by blocking. It is calculated based on the three seasons of operation in spring, autumn and summer in the whole year, and closed in winter. The detailed table is below.

		Closed cooling tower, spray pump water volume270m⊃3;/h	Open cooling tower, circulating water volume:300m⊃3;/h
Spring and summer	Drift rate	0.001%，Water consumption per hour0.001%*270(m⊃3;/h)=0.0027m⊃3;/h	0.3%，Water consumption per hour 0.3%*300(m⊃3;/h) =0.9m⊃3;/h
Water consumption0.0027m⊃3;/h24(hour)270(day)=23.328m⊃3;/h	Water consumption0.9m⊃3;/h24(hour)270(day) =5832m⊃3;/h
Evaporation	0.8%，Water consumption0.8%*270(m⊃3;/h)=2.16m⊃3;/h	0.8%，Water consumption0.8%*300(m⊃3;/h)=2.4m⊃3;/h
Water consumption2.16m⊃3;/h24(day)270(sky)=13996m⊃3;/h	Water consumption2.4m⊃3;/h24(hour)270(day)=15552m⊃3;/h
Winter season	Drift rate	The spray pump can be turned off, about 0	Water consumption 0.9m⊃3;/h24(hour)90(day) =1944m⊃3;/h
	Evaporation	The spray pump can be turned off, about 0	Water consumption2.4m⊃3;/h24(Hour)90 (day) =5184m⊃3;/h
annual	Total water consumption	About 14000m⊃3; (directly consumed by tap water)	About 28512m⊃3; (The water consumption is the consumption of the circulating aqueous solution containing the medicine and the demineralized water)