For a refrigerator or air conditioner, the coefficient of performance K (often denoted as COP) is the ratio of cooling output Qc to the required electrical energy input W, both in joules. The coefficient of performance is also expressed as a ratio of powers, Ocl/t K = W\/t where |Qc|/t is the cooling power and W|/t is the electrical power input to the device, both in watts. The energy efficiency ratio (EER) is the same quantity expressed in units of Btu for Qc and W h for W.

For a refrigerator or air conditioner, the coefficient of performance K (often denoted as COP) is the ratio of cooling output Qc to the required electrical energy input W, both in joules. The coefficient of performance is also expressed as a ratio of powers, Ocl/t K = W\/t where |Qc|/t is the cooling power and W|/t is the electrical power input to the device, both in watts. The energy efficiency ratio (EER) is the same quantity expressed in units of Btu for Qc and W h for W.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Question

For a refrigerator or air conditioner, the coefficient
of performance K (often denoted as COP) is the
ratio of cooling output Qc to the required
electrical energy input W, both in joules. The
coefficient of performance is also expressed as a
ratio of powers,
|Qc\/t
K
|W\/t
where |Qc|/t is the cooling power and W/t is
the electrical power input to the device, both in
watts. The energy efficiency ratio (EER) is the
same quantity expressed in units of Btu for Qc
and W h for W|.
Part A
Derive a general relationship that expresses EER in terms of K.
Express your answer in terms of K.
EER =
Submit
Request Answer

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