The evaporative condenser of an ammonia refrigeration plant has a water flow rate of 100 kg/s and enters a natural draft cooling tower at 43°C. The water is cooled to 30°C by entering at 27°C db, 24°C wb. The air leaves the tower as 90% RH and 32°C db. Calculate the percent of make-up water needed in the cooling tower. At 27°C db and 24°C wb: h=72.5 kJ/kg, w=0.0178 At 90%RH and 32°C db: h=102 kJ/kg, w=0.0275
The evaporative condenser of an ammonia refrigeration plant has a water flow rate of 100 kg/s and enters a natural draft cooling tower at 43°C. The water is cooled to 30°C by entering at 27°C db, 24°C wb. The air leaves the tower as 90% RH and 32°C db. Calculate the percent of make-up water needed in the cooling tower. At 27°C db and 24°C wb: h=72.5 kJ/kg, w=0.0178 At 90%RH and 32°C db: h=102 kJ/kg, w=0.0275
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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The evaporative condenser of an ammonia refrigeration plant has a water flow rate of 100
kg/s and enters a natural draft cooling tower at 43°C. The water is cooled to 30°C by entering
at 27°C db, 24°C wb. The air leaves the tower as 90% RH and 32°C db. Calculate the percent
of make-up water needed in the cooling tower.
At 27°C db and 24°C wb: h=72.5 kJ/kg, w=0.0178
At 90%RH and 32°C db: h=102 kJ/kg, w=0.0275
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