Performance of an integrated solar absorption cooling system in a sub-tropical region

Darkwa, Jo; Fraser, S.

Abstract

Evaluation of an integrated solar absorption cooling system located in a sub-tropical region has been carried out. Analysis of the results revealed an operational efficiency of 61% for the solar collectors at a mean differential temperature forumla of 51°C when compared with the manufacturer's rating of 70% at 60°C. The absorption chiller did, however, perform quite satisfactorily and achieved a coefficient of performance of 0.69 when compared with the manufacturer's rating of 0.7. There is however the need for the hot water supply system to be optimized as well as provision for supplementary heat source in order to maintain the appropriate operating temperature during low solar radiation levels.

Citation

Darkwa, J., & Fraser, S. (2012). Performance of an integrated solar absorption cooling system in a sub-tropical region. International Journal of Low-Carbon Technologies, 7(3), https://doi.org/10.1093/ijlct/cts024

• Journal Article Type: Article
• Acceptance Date: Feb 16, 2012
• Publication Date: Apr 6, 2012
• Deposit Date: Oct 20, 2017
• Publicly Available Date: Oct 20, 2017
• Journal: International Journal of Low-Carbon Technologies
• Print ISSN: 1748-1317
• Electronic ISSN: 1748-1317
• Publisher: Oxford University Press
• Peer Reviewed: Peer Reviewed
• Volume: 7
• Issue: 3
• DOI: https://doi.org/10.1093/ijlct/cts024
• Keywords: solar air-conditioning system; absorption chiller; collector efficiency; COP
• Public URL: https://nottingham-repository.worktribe.com/output/709999
• Publisher URL: https://academic.oup.com/ijlct/article-lookup/doi/10.1093/ijlct/cts024