A refrigeration machine rejects QH = 620 Btu per cycle to a hot reservoir at TH = 540°R, while receiving Qc = 447.0 Btu per cycle from a cold reservoir at temperature Tc. The machine operates at 10 cycles per minute. Determine the net power input, in hp, the minimum theoretical temperature Tc, in °R, and the maximum coefficient of performance of the cycle.
A refrigeration machine rejects QH = 620 Btu per cycle to a hot reservoir at TH = 540°R, while receiving Qc = 447.0 Btu per cycle from a cold reservoir at temperature Tc. The machine operates at 10 cycles per minute. Determine the net power input, in hp, the minimum theoretical temperature Tc, in °R, and the maximum coefficient of performance of the cycle.
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter8: Natural Convection
Section: Chapter Questions
Problem 8.46P
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![A refrigeration machine rejects QH = 620 Btu per cycle to a hot reservoir at TH = 540°R, while receiving Qc = 447.0 Btu per cycle from
a cold reservoir at temperature Tc. The machine operates at 10 cycles per minute.
Determine the net power input, in hp, the minimum theoretical temperature Tc, in °R, and the maximum coefficient of performance of
the cycle.
Step 1
Determine the net power input, in hp.
W.
i
hp
cycle =](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc61ca524-dac6-444e-96a2-05cfae3d221f%2Fc2b31699-de75-4961-9c77-9243a89f3240%2Fs6wzrld_processed.png&w=3840&q=75)
Transcribed Image Text:A refrigeration machine rejects QH = 620 Btu per cycle to a hot reservoir at TH = 540°R, while receiving Qc = 447.0 Btu per cycle from
a cold reservoir at temperature Tc. The machine operates at 10 cycles per minute.
Determine the net power input, in hp, the minimum theoretical temperature Tc, in °R, and the maximum coefficient of performance of
the cycle.
Step 1
Determine the net power input, in hp.
W.
i
hp
cycle =
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