• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
  • Scopus
  • Indexed by Core Journals of China, Chinese S&T Journal Citation Reports
  • Chinese S&T Journal Citation Reports
  • Chinese Science Citation Database
Volume 22 Issue 3
Jun.  2009
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Article Contents
WANG Houhua, FANG Zhaosong, ZHENG Shuangying. Experimental Investigation on Energy Conservation Performance of Finned-Tube Refrigeration Heat Exchanger with Circular Holes[J]. Journal of Southwest Jiaotong University, 2009, 22(3): 455-460.
Citation: WANG Houhua, FANG Zhaosong, ZHENG Shuangying. Experimental Investigation on Energy Conservation Performance of Finned-Tube Refrigeration Heat Exchanger with Circular Holes[J]. Journal of Southwest Jiaotong University, 2009, 22(3): 455-460.

Experimental Investigation on Energy Conservation Performance of Finned-Tube Refrigeration Heat Exchanger with Circular Holes

  • Received Date: 04 Dec 2008
  • Publish Date: 20 Jun 2009
  • To probe into the refrigeration performance of hole finned-tube under frosting,a wind-tunnel experiment research on the energy conservation performance was carried out when air flows over a single-row-plane finned-tube refrigeration exchanger under a frosting condition. The experimental results show that compared with a plane finned-tube refrigeration exchanger in the same experimental condition and geometric size,when the average face velocity is from 1.87 to 5.0 m/s,the cooling capacity of a three-symmetrical big-hole finned-tube refrigeration exchanger increases 3.0% to 16.8%,with an average value of 9.0%; the fin surface coefficient of heat transfer raises 49.7% to 80.1%,the mean value being 64.3%; the compressor COP (coefficient of performance) improves 15.0% to 30.2%,with an average of 23.0%; and resistance decreases 32.0%. During 5.5 h experimental time,only some holes on the surface of the three symmetry big-hole fins were jammed by frost to keep a predominant enhancement heat characteristic.

     

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