R efrigerant R-134a is used in a vapor-compression refrigeration cycle as the circulating medium. The refrigerant enters the compressor at 200 kPa and -10°C and leaves it at 1MPA and 70°C. The I\mass flow rate through this component is 0.015kg/s, with a power input of 1kW. After the compressor, the refrigerant enters a water-cooled condenser at 1MPA and 60°C and leaves this condenser at 0.95MPa and 40°C. The condenser input and output temperatures of water are 10°C and 20°C, respectively. Based on this information, please find: a) The rate of heat transfer from the compressor. b) Mass flow rate of water through the condenser and the cooling capacity provided by water-

Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
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efrigerant R-134a is used in a vapor-compression refrigeration cycle as the circulating medium.
The refrigerant enters the compressor at 200 kPa and -10°C and leaves it at 1MPa and 70°C. The
Lmass flow rate through this component is 0.015kg/s, with a power input of 1kW. After the
compressor, the refrigerant enters a water-cooled condenser at 1MPa and 60°C and leaves this
condenser at 0.95MPa and 40°C. The condenser input and output temperatures of water are 10°C and
20°C, respectively. Based on this information, please find:
a) The rate of heat transfer from the compressor.
b) Mass flow rate of water through the condenser and the cooling capacity provided by water-
cooling.
Transcribed Image Text:R efrigerant R-134a is used in a vapor-compression refrigeration cycle as the circulating medium. The refrigerant enters the compressor at 200 kPa and -10°C and leaves it at 1MPa and 70°C. The Lmass flow rate through this component is 0.015kg/s, with a power input of 1kW. After the compressor, the refrigerant enters a water-cooled condenser at 1MPa and 60°C and leaves this condenser at 0.95MPa and 40°C. The condenser input and output temperatures of water are 10°C and 20°C, respectively. Based on this information, please find: a) The rate of heat transfer from the compressor. b) Mass flow rate of water through the condenser and the cooling capacity provided by water- cooling.
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