Optimization analyses on the performance of an auto-cascade absorption refrigeration system operating with mixed refrigerants

Jinkun Zhou, Shengjian Le, Qin Wang and Dahong Li

International Journal of Low-Carbon Technologies, 2018, vol. 13, issue 3, 212-217

Abstract: Waste heat can be well utilized in absorption refrigeration systems. The auto-cascade absorption refrigeration system could obtain a lower temperature than that of the traditional absorption refrigeration system since the non-azeotropic mixed refrigerants with large temperature glides were used. In this article, the performance of an auto-cascade absorption refrigeration system using R23/R134a/DMF (dimethylformamide) solutions as the working substance was analyzed. Optimization analysis results showed that, to some extent, the coefficient of performance (COP) could be increased when the low pressure of the system decreased or the high pressure increased. The reasonable upper limit of the high pressure was the high pressure at the turning point of COP, and the reasonable lower limit of the low pressure was the low pressure at the turning point of COP. The COP of the system monotonously increased with the increase of the mole fraction of R23 in solutions. The low R23 mole fraction solutions were more appropriate.

Keywords: auto-cascade; absorption refrigeration; mixed refrigerants; optimization (search for similar items in EconPapers)
Date: 2018
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://hdl.handle.net/10.1093/ijlct/cty017 (application/pdf)
Access to full text is restricted to subscribers.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:oup:ijlctc:v:13:y:2018:i:3:p:212-217.

Access Statistics for this article

International Journal of Low-Carbon Technologies is currently edited by Saffa B. Riffat

More articles in International Journal of Low-Carbon Technologies from Oxford University Press
Bibliographic data for series maintained by Oxford University Press ().