Experimental investigation of the performance of a single-stage auto-cascade refrigerator

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• 作者：Shengjun Rui ; Hua Zhang ; Bohan Zhang ; Dongsheng Wen
• 刊名：Heat and Mass Transfer
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：52
• 期：1
• 页码：11-20
• 全文大小：2,045 KB
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• 作者单位：Shengjun Rui (1) (2)
  Hua Zhang (2)
  Bohan Zhang (3)
  Dongsheng Wen (4)
  
  1. Vehicle and Transportation Engineering Institute, Henan University of Science and Technology, Luoyang, 471023, People’s Republic of China
  2. School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai, 200093, People’s Republic of China
  3. School of Marine Engineering, Dalian Maritime University, Dalian, 116026, People’s Republic of China
  4. School of Chemical and Process Engineering, University of Leeds, Leeds, LS2 9JT, UK
  
• 刊物类别：Engineering
• 刊物主题：Engineering Thermodynamics and Transport Phenomena
  Industrial Chemistry and Chemical Engineering
  Thermodynamics
  Physics and Applied Physics in Engineering
  Theoretical and Applied Mechanics
  Engineering Fluid Dynamics
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1432-1181

文摘

Auto-refrigerating cascade (ARC) systems possess many advantages comparing with traditional cascade refrigeration systems. This work proposed a novel ternary mixture, R600a/R23/R14, for ARC systems for 190 K applications. The performance of the ternary mixture and the influences of compositional ratio and bypass scheme were assessed in a modified domestic cooler. The results demonstrated the feasibility of the proposed R600a/R23/R14 ternary mixture as an environmental benign alternative for ARC systems. The performance varied little within a certain composition range and a mass ratio of 35/30/35 for R600a/R23/R14 mixture was recommended. It also showed that the two bypass schemes, which can regulate more effectively the refrigerant compositions, were better than the conventional hot-gas bypass approach. The variation of the evaporator temperature suggested the presence of local dryout at high heat loads (i.e., larger than the design value), which should be carefully prevented.