A 3 cylinder 100 x 200 mm ammonia compressor with a compression efficiency of 86% operates with a suction pressure of 291.57 kPa and a condenser pressure of 1557 kPa at 18 rps. The refrigerant cools 1.8 kg/s of water from 28 0C to 3 0C and assuming 7 % of the useful refrigerating effect is lost due to the process of cooling and h2 = 1710 kJ/kg and clearance volume is 7 %. determine: (D) ideal COP (E) actual work of comprssion (F) actual COP
A 3 cylinder 100 x 200 mm ammonia compressor with a compression efficiency of 86% operates with a suction pressure of 291.57 kPa and a condenser pressure of 1557 kPa at 18 rps. The refrigerant cools 1.8 kg/s of water from 28 0C to 3 0C and assuming 7 % of the useful refrigerating effect is lost due to the process of cooling and h2 = 1710 kJ/kg and clearance volume is 7 %. determine: (D) ideal COP (E) actual work of comprssion (F) actual COP
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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A 3 cylinder 100 x 200 mm ammonia compressor with a compression efficiency of 86% operates with a suction pressure of 291.57 kPa and a condenser pressure of 1557 kPa at 18 rps. The refrigerant cools 1.8 kg/s of water from 28 0C to 3 0C and assuming 7 % of the useful refrigerating effect is lost due to the process of cooling and h2 = 1710 kJ/kg and clearance volume is 7 %. determine: (D) ideal COP (E) actual work of comprssion (F) actual COP
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