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: G. volume flow rate at suction H. displacement volume I. clearance volumetric efficiency J. actual volumetric efficiency
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: G. volume flow rate at suction H. displacement volume I. clearance volumetric efficiency J. actual volumetric efficiency
Refrigeration and Air Conditioning Technology (MindTap Course List)
8th Edition
ISBN:9781305578296
Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson
Chapter45: Domestic Refrigerators And Freezers
Section: Chapter Questions
Problem 12RQ: Refrigerators currently being manufactured in the United States are using______as their refrigerant.
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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:
G. volume flow rate at suction
H. displacement volume
I. clearance volumetric efficiency
J. actual volumetric efficiency
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