Heat Pumps

Authored by: Lu Aye

Managing Air Quality and Energy Systems

Print publication date:  July  2020
Online publication date:  July  2020

Print ISBN: 9781138342675
eBook ISBN: 9781003043461
Adobe ISBN:

10.1201/9781003043461-42

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Abstract

Heat pumps capture heat energy from low-grade heat sources such as ambient air, ground, and waste heat streams and upgrade to a higher temperature level for useful applications. This entry includes a brief history, fundamentals, classifications, applications and performance parameters of heat pumps. Working principles of the thermoelectric heat pump, the absorption heat pump, the gas compression heat pump and the vapor compression heat pump are explained. Performance parameters of the heat pump systems (coefficient of performance, energy efficiency ratio, primary energy ratio, and ambient energy fraction) are presented. The short-term and long-term greenhouse gas saving potential for the use of heat pumps are discussed.

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