Heat Pump Technologies and Their Applications in Solar Systems

  • Xingxing ZhangEmail author
  • Manxuan Xiao
  • Wei He
  • Zhongzhu Qiu
  • Xudong Zhao
Part of the Green Energy and Technology book series (GREEN)


As the well known that global energy demand is on a trend of continuous growth, reducing energy demand and making good use of renewable energy are thought to be the major routes toward low carbon and sustainable future, in particular for the building sector. Compared to traditional gas-fired heating systems, heat pumps have been proved to be an energy-efficient heating technology which can save fossil fuel energy and consequently reduce CO2 emission. However, the most outstanding challenges for the application of heat pumps lie in their high demand for electrical power, and the insufficient heat transfer between the heat source and the refrigerant. To overcome these difficulties, a solar-assisted heat pump has been proposed to tackle these challenges. A solar-assisted heat pump combines a heat pump with a solar collector, enabling the use of solar energy to provide space heating and hot water for buildings. This chapter introduces heat pump technologies and their applications in solar systems. Two types of solar-assisted heat pump, direct and indirect expansion, are illustrated in details. This work has provided the fundamental research and experience for developing a solar heat pump system and contributing to a significant fossil fuel saving and carbon reduction in the global extent.


Heat pump PV Loop heat pipe Micro-channels-evaporator Performance 


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Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Xingxing Zhang
    • 1
    Email author
  • Manxuan Xiao
    • 2
  • Wei He
    • 3
  • Zhongzhu Qiu
    • 4
  • Xudong Zhao
    • 5
  1. 1.Department of Energy, Forest and Built EnvironmentsDalarna UniversityFalunSweden
  2. 2.Department of Architecture and Built EnvironmentUniversity of Nottingham Ningbo ChinaNingboChina
  3. 3.Department of Thermal Science and Energy EngineeringUniversity of Science and Technology of ChinaHefeiChina
  4. 4.College of Energy and Mechanical EngineeringShanghai University of Electric PowerShanghaiChina
  5. 5.School of Engineering and Computer ScienceUniversity of HullHullUK

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