Engineering thermodynamics

Heat Recovery for Adsorption Refrigeration System via Pinch Technology

  • PAN Quanwen ,
  • SHAN He ,
  • TAMAINOT-TELTO Zacharie ,
  • WANG Ruzhu
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  • 1. Institute of Refrigeration and Cryogenics, Shanghai Jiao Tong University, Shanghai 200240, China
    2. Engineering Research Center of Solar Power and Refrigeration, MOE, Shanghai 200240, China
    3. School of Engineering, University of Warwick, Coventry CV4 7AL, UK

Online published: 2023-11-30

Supported by

This work was supported by the National Natural Science Foundation of China (Grant No. 51906136), the Institute of Advanced Studies (IAS) of the University of Warwick in the UK (Grant No C5E3X56470T) and Shanghai Sailing Program (Grant No. 19YF1423100).

Copyright

Science Press, Institute of Engineering Thermophysics, CAS and Springer-Verlag GmbH Germany, part of Springer Nature 2022

Abstract

An adsorption refrigeration system can be driven by low grade heat and uses natural refrigerant with the advantage of reducing the greenhouse gases emission. However, one of the weaknesses is its low efficiency and more importantly its high cost. The recovery of internal waste heat becomes therefore very important in order to improve the coefficient of performance (COP). Analysis based on pinch technology can be helpful to optimal heat recovery operation. In this paper, temperature-heat diagrams and problem tables for adsorption refrigeration systems are proposed and analyzed using Pinch Technology. The results show that pinch point is located between beds and the main waste heat needs to be recovered between beds. Dynamic characteristic (time factor) of adsorption refrigeration system is the main resistance for heat recovery. The effect of pinch point temperature difference on the system COP is not distinct. Furthermore, when the driving temperature is 90°C, the COP of adsorption refrigeration via optimization of pinch analysis is 0.73 which is fairly comparable to LiBr-water absorption refrigeration system. Pinch Technology can be adopted in different types of adsorption refrigeration systems (two-bed, four-bed, mass recovery, et al.).

Cite this article

PAN Quanwen , SHAN He , TAMAINOT-TELTO Zacharie , WANG Ruzhu . Heat Recovery for Adsorption Refrigeration System via Pinch Technology[J]. Journal of Thermal Science, 2022 , 31(2) : 379 -389 . DOI: 10.1007/s11630-022-1535-7

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