A heat pump using refrigerant-134a heats a house by using underground water at 8C as the heat

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A heat pump using refrigerant-134a heats a house by using underground water at 8°C as the heat source. The house is losing heat at a rate of 60,000kJ/h. The refrigerant enters the compressor at 280 kPa and 0°C, and it leaves at 1 MPa and 60°C. The refrigerant exits the condenser at 30°C. Determine
(a) The power input to the heat pump.
(b) The rate of heat absorption from the water.
(c) The increase in electric power input if an electric resistance heater is used instead of a heat pump.
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Thermodynamics An Engineering Approach

ISBN: 978-0073398174

8th edition

Authors: Yunus A. Cengel, Michael A. Boles

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