Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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Temperature Characteristics of Cascade Refrigeration System by Pressure Adjustment

  • Chung Han-Shik (School of Mechanical and Aerospace Engineering, the Institute of Marine Industry, Gyeongsang National University) ;
  • Jeong Hyo-Min (School of Mechanical and Aerospace Engineering, the Institute of Marine Industry, Gyeongsang National University) ;
  • Kim Yeong-Geun (Graduate School, Department of Mechanical and Precision Engineering, Gyeongsang National University) ;
  • Rahadiyan Lubi (Graduate School, Department of Mechanical and Precision Engineering, Gyeongsang National University)
  • Published : 2005.12.01
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Abstract

Super low temperature has many applications nowadays, from the chemical processing, automotives manufacturing, plastic recycling, etc. Considering of its wide application in the present and the future, study of the super-low temperature refrigeration system should be actively carried out. Super low state temperature can be achieved by using multi-stage refrigeration system. This paper present the development and testing of cascade refrigerator system for achieving super-low temperature. On this experiment, two different types of HCFCs refrigerants are utilized, R-22 and R-23 were applied for the high stage and the low-pressure stage respectively. The lowest temperature in the low-pressure evaporator that can be achieved by this cascade refrigeration system is down to $-85^{\circ}C$. This experiment is aimed to study the effect of inlet pressure of the low-pressure stage evaporator and low-pressure stage compressors inlet pressure characteristics to the overall temperature characteristics of cascade refrigeration system.

Keywords

References

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