Heat Pumps

Abstract

Heat pumps (HP) have been a well-known technology for many years and widely used for heating and cooling of residential buildings due to relatively higher energy utilization efficiencies. In this regard the structure of the chapter is as follows: some introductory information on HPs is given first. Next the historical development of the technology is described. The classification of HPs is then presented. After that energetic and exergetic relations used to analyze and assesses the performance of HPs are listed. Finally the present contribution concludes with some closing remarks highlighting the current and future aspects of HPs. © 2018 Elsevier B.V. All rights reserved.