Performance of a showcase refrigeration system with multi-evaporator during on–off cycling and hot-gas bypass defrost

Honghyun Cho, Yongchan Kim and Inkyu Jang

Energy, 2005, vol. 30, issue 10, 1915-1930

Abstract: During the defrosting process, the temperature in the cabinet of a showcase becomes higher than the set point. This phenomenon is undesirable for foods or products stored. It is essential to develop an efficient defrosting method to prevent large temperature fluctuations. In the present study, the performance of the showcase refrigeration system with three evaporators was measured during on–off cycling and hot-gas bypass defrost. Based on the test results, the effects of off-period in the on–off cycling and EEV opening in the hot-gas bypass defrosting cycle on the performance of showcase system were analyzed. In addition, the operating characteristics of the hot-gas bypass defrosting cycle were compared with those of the on–off cycling. The hot-gas bypass defrosting method showed higher refrigerating capacity and less temperature fluctuations than the on–off cycling under frosting/defrosting conditions even though it required more compressor power.

Date: 2005
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (13)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544204004864
Full text for ScienceDirect subscribers only

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:eee:energy:v:30:y:2005:i:10:p:1915-1930

DOI: 10.1016/j.energy.2004.11.006

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().