A heat pump that operates on the ideal vapor-compression cycle with refrigerant-134a is used to heat a house and maintain it at 75°F by using underground water at 50°F as the heat source. The house is losing heat at a rate of 74000 Btu/h. The evaporator and condenser pressures are 40 and 100 psia, respectively. Determine the power input to the heat pump and the electric power saved by using a heat pump instead of a resistance heater. (Take the required values from saturated refrigerant-134a tables.) Question: The power input to the heat pump is ______ hp , and the electric power saved by using a heat pump instead of a resistance heater is________hp
A heat pump that operates on the ideal vapor-compression cycle with refrigerant-134a is used to heat a house and maintain it at 75°F by using underground water at 50°F as the heat source. The house is losing heat at a rate of 74000 Btu/h. The evaporator and condenser pressures are 40 and 100 psia, respectively. Determine the power input to the heat pump and the electric power saved by using a heat pump instead of a resistance heater. (Take the required values from saturated refrigerant-134a tables.) Question: The power input to the heat pump is ______ hp , and the electric power saved by using a heat pump instead of a resistance heater is________hp
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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A heat pump that operates on the ideal vapor-compression cycle with refrigerant-134a is used to heat a house and maintain it at 75°F by using underground water at 50°F as the heat source. The house is losing heat at a rate of 74000 Btu/h. The evaporator and condenser pressures are 40 and 100 psia, respectively. Determine the power input to the heat pump and the electric power saved by using a heat pump instead of a resistance heater.
(Take the required values from saturated refrigerant-134a tables.)
Question:
The power input to the heat pump is ______ hp , and the electric power saved by using a heat pump instead of a resistance heater is________hp
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