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Solved: A geothermal heat pump operating at steady state

Fundamentals of Engineering Thermodynamics | 8th Edition | ISBN: 9781118412930 | Authors: Michael J. Moran ISBN: 9781118412930 139

Solution for problem 10.42 Chapter 10

Fundamentals of Engineering Thermodynamics | 8th Edition

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Fundamentals of Engineering Thermodynamics | 8th Edition | ISBN: 9781118412930 | Authors: Michael J. Moran

Fundamentals of Engineering Thermodynamics | 8th Edition

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Problem 10.42

A geothermal heat pump operating at steady state with Refrigerant-22 as the working fluid is shown schematically in Fig. P10.42. The heat pump uses 558F water from wells as the thermal source. Operating data are shown on the figure for a day in which the outside air temperature is 208F. Assume adiabatic operation of the compressor. For the heat pump, determine (a) the volumetric flow rate of heated air to the house, in ft3 /min. (b) the isentropic compressor efficiency. (c) the compressor power, in horsepower. (d) the coefficient of performance. (e) the volumetric flow rate of water from the geothermal wells, in gal/min. For T0 5 208F, perform a full exergy accounting of the compressor power input, and devise and evaluate a second law efficiency for the heat pump system.

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Textbook: Fundamentals of Engineering Thermodynamics
Edition: 8
Author: Michael J. Moran
ISBN: 9781118412930

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Solved: A geothermal heat pump operating at steady state