Determine the net power input, in hp, the minimum theoretical temperature To, in °R, and the maximum coefficient of performance of the cycle.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Chapter 5 no. 3

A refrigeration machine rejects Qu-680 Btu per cycle to a hot reservoir at Tu-540°R, while receiving Qc=483.0 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 To, in °R, and the maximum coefficient of performance of
the cycle.
Step 1
Determine the net power input, in hp.
cycle
Hint
Step 2
Your answer is correct.
Step 3
46.45
Your answer is correct.
Determine the minimum theoretical temperature Tc, in °R.
TC/min - 383.5
Hint
Pmax
hp
ºR
Determine the maximum coefficient of performance of the cycle.
Attempts: 1 of 4 used
Attempts: 1 of 4 used
Transcribed Image Text:A refrigeration machine rejects Qu-680 Btu per cycle to a hot reservoir at Tu-540°R, while receiving Qc=483.0 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 To, in °R, and the maximum coefficient of performance of the cycle. Step 1 Determine the net power input, in hp. cycle Hint Step 2 Your answer is correct. Step 3 46.45 Your answer is correct. Determine the minimum theoretical temperature Tc, in °R. TC/min - 383.5 Hint Pmax hp ºR Determine the maximum coefficient of performance of the cycle. Attempts: 1 of 4 used Attempts: 1 of 4 used
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