Refrigerant 134a is the working fluid in an ideal vapor-compression refrigeration cycle operating at steady state. Refrigerant enters the compressor at 1 bar, -12°C, and the condenser pressure is 9 bar. Liquid exits the condenser at 32°C. The mass flow rate of refrigerant is 7 kg/min. Determine: (a) the magnitude of the compressor power, in kW. (b) the refrigeration capacity, in tons. (c) the coefficient of performance.
Refrigerant 134a is the working fluid in an ideal vapor-compression refrigeration cycle operating at steady state. Refrigerant enters the compressor at 1 bar, -12°C, and the condenser pressure is 9 bar. Liquid exits the condenser at 32°C. The mass flow rate of refrigerant is 7 kg/min. Determine: (a) the magnitude of the compressor power, in kW. (b) the refrigeration capacity, in tons. (c) the coefficient of performance.
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
Chapter28: Special Refrigeration Applications
Section: Chapter Questions
Problem 15RQ: Why is two-stage compression popular for extra-low-temperature refrigeration systems?
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![7:05 PM PI
6:59ffy.
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2 of 3
Seatwork 1 Vapor
Compression
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Determine:
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- /30
Part A
LTE. K/S
Refrigerant 134a is the working fluid in an
ideal vapor-compression refrigeration cycle
operating at steady state. Refrigerant
enters the compressor at 1 bar, -12°C, and
the condenser pressure is 9 bar. Liquid exits
the condenser at 32°C. The mass flow rate
of refrigerant is 7 kg/min.
(b) the refrigeration capacity, in tons.
kW
(a) the magnitude of the compressor power,
in kW.
(c) the coefficient of performance.
Ⓒ4G0
Determine the magnitude of the
compressor power, in kW.
W₁ =
01:24:
37
21](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe3a3955c-ccb8-4ffd-b61e-fb7f8d7be1b2%2F404cb6fd-f789-4358-8286-adcde4f5c90f%2Fz890iv_processed.jpeg&w=3840&q=75)
Transcribed Image Text:7:05 PM PI
6:59ffy.
←
2 of 3
Seatwork 1 Vapor
Compression
<
Determine:
>
- /30
Part A
LTE. K/S
Refrigerant 134a is the working fluid in an
ideal vapor-compression refrigeration cycle
operating at steady state. Refrigerant
enters the compressor at 1 bar, -12°C, and
the condenser pressure is 9 bar. Liquid exits
the condenser at 32°C. The mass flow rate
of refrigerant is 7 kg/min.
(b) the refrigeration capacity, in tons.
kW
(a) the magnitude of the compressor power,
in kW.
(c) the coefficient of performance.
Ⓒ4G0
Determine the magnitude of the
compressor power, in kW.
W₁ =
01:24:
37
21
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