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Performance analysis of an integrated adsorption and absorption refrigeration system

Citation

Nikbakhti, R and Wang, X and Chan, A, Performance analysis of an integrated adsorption and absorption refrigeration system, International Journal of Refrigeration, 117 pp. 269-283. ISSN 0140-7007 (2020) [Refereed Article]

Copyright Statement

©2020 Elsevier Ltd and IIR. All rights reserved.

DOI: doi:10.1016/j.ijrefrig.2020.04.019

Abstract

In this study, a completely new integrated adsorption–absorption (AD–AB) refrigeration system driven by low-grade heat sources was proposed. A lumped-parameter thermodynamic model was developed to evaluate the performance of this novel system. This model was first validated with data available in the literature and then used to compare the performance between the proposed system and a conventional adsorption refrigeration system. The effect of operating conditions (e.g. heat source and cooling source temperatures) on the Coefficient of Performance (COP) and cooling capacity (CC) was evaluated. The results showed that the CC and COP of the proposed system were as high as 13.7 kW and 0.4, respectively at a thermal source temperature of 60 °C. The COP of the integrated system was significantly higher compared to the conventional adsorption system at heat source temperatures below 65 °C. The cooling capacity of the integrated system was increased by up to 100% as compared with a conventional adsorption system under the same operating conditions. It was also found that the COP of the proposed system did not change significantly at heat source temperatures between 50 and 85 °C. This indicated the integrated AD–AB system could work efficiently across a wide range of low-temperature heat sources. Furthermore, the results also indicated that the COP of the integrated system was largely affected by the cooling water inlet temperature if the heat source temperature was lower than 55 °C.

Item Details

Item Type:Refereed Article
Keywords:adsorption, absorption, thermal efficiency, coefficient of performance
Research Division:Engineering
Research Group:Mechanical engineering
Research Field:Energy generation, conversion and storage (excl. chemical and electrical)
Objective Division:Energy
Objective Group:Energy storage, distribution and supply
Objective Field:Energy systems and analysis
UTAS Author:Nikbakhti, R (Mr Rasoul Nikbakhti)
UTAS Author:Wang, X (Professor Xiaolin Wang)
UTAS Author:Chan, A (Professor Andrew Chan)
ID Code:139490
Year Published:2020
Web of Science® Times Cited:1
Deposited By:Engineering
Deposited On:2020-06-17
Last Modified:2021-02-03
Downloads:0

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