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《Journal of Dalian Fisheries University》 2006-01
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Methods for improving heat transfer in fin-tube heat exchangers

LI Ge~(1,2,3), YU Gong-zhi~(4), CHENG Mu-jun~5, ZHANG Dian-guang~(2)(1.Key and Open Laboratory of Aquatic Processing and Utilization of Liaoning Province,Dalian Fisheries Univ.,Dalian 116023,China; 2.Department of Food Processing,Dalian Fisheries Univ.,Dalian 116023,China;3.Power Engineering Department of Dalian University of Technology,Dalian 116023,China;4.School of Mechanical Engineering,Dalian Fisheries Univ.,Dalian 116023,China;5.Dalian Maritime Safety Administrtion,Dalian 116001,China)  
In order to optimize the structure of fin-tube heat exchangers,two methods was put forward in the paper.Under refrigeration condition,the spacing of fins was varied in the easily-frosted heat exchangers.Under air-conditioning condition,the thread pitch of the inner screw thread tubes was varied.The results have shown that the heat transfer coefficients in the two cases can be increased by 9.8%% and 3.82% respectively.
【Fund】: 辽宁省科技厅重点实验室专项资金资助项目(2005)
【CateGory Index】: TK172
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