26 tons of ice from and at 0°C is produced per day in an ammonia refrigerator. The temperature range in the compressor is from 26°C to -15°C. The vapour is dry and saturated at the end of compression. Assuming actual COP is 62% of theoretical, calculate the power required to drive the compressor. Take latent heat of ice 335 kJ/kg.
26 tons of ice from and at 0°C is produced per day in an ammonia refrigerator. The temperature range in the compressor is from 26°C to -15°C. The vapour is dry and saturated at the end of compression. Assuming actual COP is 62% of theoretical, calculate the power required to drive the compressor. Take latent heat of ice 335 kJ/kg.
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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2. 26 tons of ice from and at 0°C is produced per day in an ammonia refrigerator. The temperature range in the compressor is from 26°C to -15°C. The vapour is dry and saturated at the end of compression. Assuming actual COP is 62% of theoretical, calculate the power required to drive the compressor. Take latent heat of ice 335 kJ/kg.
Transcribed Image Text:T (°C)
Enthalpy (kJ/kg)
Liquid
Entropy (kJ/kgK)
liquid vapour
vapour
1319.22
25
100.04
0.3473 4.4852
-15
-54.56
1304.99
-2.1338 5.0585
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