Air conditioners are rated by their Energy Efficiency Ratio, or EER, defined as the cooling power P

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Air conditioners are rated by their Energy Efficiency Ratio, or EER, defined as the cooling power Pr (in Btu/h), divided by the total electric power input Pe (in watts), measured with T+ = 95 ◦F and T = 80 F: EER = Pr[BTU/h]/P[W]. US energy efficiency standards require central air conditioners to have an EER value greater than ≈ 11.7. What is the Co Pr of an air conditioner with EER = 12? How does it compare with the Carnot limit?

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The Physics of Energy

ISBN: 978-1107016651

1st edition

Authors: Robert L. Jaffe, Washington Taylor

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