Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/61342
Title: Performance study on a low-temperature absorption-compression cascade refrigeration system driven by low-grade heat
Authors: Xu, Y
Chen, G
Wang, Q
Han, X
Jiang, N
Deng, S 
Keywords: Absorption-compression
Energy-saving
Low-grade heat
Low-temperature
Refrigeration
Issue Date: 2016
Publisher: Pergamon Press
Source: Energy conversion and management, 2016, v. 119, p. 379-388 How to cite?
Journal: Energy conversion and management 
Abstract: This paper presents a performance study on a low-temperature absorption-compression cascade refrigeration system (LACRS), which consists of an absorption subsystem (AS) and a vapor compression auto-cascade subsystem (CS). In the system, low-grade heat of AS is used to subcool the CS, which can obtain cold energy at -170 °C. A simulation study is carried out to investigate the effects of evaporating temperature and low-grade cooling capacity on system performance. The study results show that as low-grade cooling capacity from the AS is provided to the CS, high-grade cooling capacity increases, compressor power consumption decreases, and the COP of the CS therefore increases. Comparing with compression auto-cascade cycle, the largest COP improvement of LACRS is about 38%. The model is verified by experimental data. An additional high-grade cooling capacity is obtained experimentally at -170 °C. The study results presented in this paper not only demonstrate the excellent performance of the LACRS, but also provide important guidance to further system design, and practical application.
URI: http://hdl.handle.net/10397/61342
ISSN: 0196-8904
EISSN: 1879-2227
DOI: 10.1016/j.enconman.2016.04.061
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