Fox and McDonald's Introduction to Fluid Mechanics
Fox and McDonald's Introduction to Fluid Mechanics
9th Edition
ISBN: 9781118912652
Author: Philip J. Pritchard, John W. Mitchell
Publisher: WILEY
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Chapter 1, Problem 26P

From thermodynamics, we know that the coefficient of performance of an ideal air conditioner (COPideal) is given by

C O P i d e a l = T L T H T L

where TL and TH are the room and outside temperatures (absolute). If an AC is to keep a room at 20°C when it is 40°C outside, find the COPideal. Convert to an EER value, and compare this to a typical Energy Star−compliant EER value.

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This subject is thermodynamics 1
A reversible refrigeration cycle operates between cold and hot reservoirs at temperatures Tc and TH, respectively. (a) If the coefficient of performance is 3.5 and Tc = -40°F, determine TH, in °F. (b) If Tc = 0°C and TH = 30°C, determine the coefficient of performance. (c) If Qc = 500 Btu, QH = 600 Btu, and Tc = 20°F, determine TH, in °F. (d) If Tc = 30°F and TH = 100°F, determine the coefficient of performance. (e) If the coefficient of performance is 2 and Tc = -5°C, find TH, in °C.
* Thermodynamic as a science dealing with the concept of work Ture O O False

Chapter 1 Solutions

Fox and McDonald's Introduction to Fluid Mechanics

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