Experimental investigation of cycle characteristics of a R23 and R600a based Joule-Thomson refrigerator

  • Xianghua Lu
  • Shengjun RuiEmail author
  • Tao He


This paper proposes a novel refrigerant pair, i.e., R23(trifluoromethane) and R600a(isobutane), for Joule-Thompson (JT) refrigerating systems for 200 K applications, and investigates its performance in a modified smaller domestic cooler. The influence of the refrigerant ratios and the condensing temperature on the JT performance is investigated, and optimized parameters are proposed for further prototypes. It is suggested that R23/R600a is a good refrigerant pair for the JT system, and a compositional ratio of 3:7 is suitable for the designed application. The dynamic response of the refrigerating system shows that the proposed refrigerant pair can reach stable operating conditions within 45 min and the variation of the condensing temperature has little influence on the evaporating temperature, partly due to the full condensation of the refrigerant pair before the throttle process.


Mixed refrigerants Joule-Thomson refrigerator Regenerative cycle Condensing temperature 



This work is supported by the Science and Technology Program of Henan Province, China (172102410026).


  1. 1.
    Narasimhan NL, Venkatarathnam G (2011) Effect of mixture composition and hardware on the performance of a single stage JT refrigerator. Cryogenics 51:446–451CrossRefGoogle Scholar
  2. 2.
    Maytal BZ, Nellis GF, Klein SA et al (2006) Elevated-pressure mixed-coolants Joule–Thomson cryocoolng. Cryogenics 46:55–67CrossRefGoogle Scholar
  3. 3.
    Alexeev A, Haberstroh C, Quack H (2002) Mixed gas J-T cryocooler with precooling stage. Cryocoolers 10:475–479CrossRefGoogle Scholar
  4. 4.
    Venkatarathnam G, Mokashi G, Murthy SS (1996) Occurrence of pinch points in condensers and evaporators for zeotropic refrigerant mixtures. Int J Refrig 19:361–368CrossRefGoogle Scholar
  5. 5.
    Reddy KR, Murthy SS, Venkatarathnam G (2010) Relationship between the cooldown characteristics of J–T refrigerators and mixture composition. Cryogenics 50:421–425CrossRefGoogle Scholar
  6. 6.
    Narasimhan NL, Venkatarathnam G (2010) A method for estimating the composition of the mixture to be charged to get the desired composition in circulation in a single stage JT refrigerator operating with mixtures. Cryogenics 50:93–101CrossRefGoogle Scholar
  7. 7.
    Yu JL (2008) Improving the performance of small Joule–Thomson cryocooler. Cryogenics 48:426–431CrossRefGoogle Scholar
  8. 8.
    Yu JL, Tian GL, Xu Z (2009) Exergy analysis of Joule–Thomson cryogenic refrigeration cycle with an ejector. Energy 34:1864–1869CrossRefGoogle Scholar
  9. 9.
    Zhou YY, Yu JL, Chen XJ (2012) Thermodynamic optimization analysis of a tube-in-tube helically coiled heat exchanger for Joule-Thomson refrigerators. Int J Therm Sci 58:151–156CrossRefGoogle Scholar
  10. 10.
    Gong MQ, Luo EC, Wu JF et al (2002) On the temperature distribution in the counter flow heat exchanger with multicomponent non-azeotropic mixtures. Cryogenics 42:795–804CrossRefGoogle Scholar
  11. 11.
    Zou X, Gong MQ, Chen GF et al (2010) Experimental study on saturated flow boiling heat transfer of R170/R290 mixtures in a horizontal tube. Int J Refrig 33:371–380CrossRefGoogle Scholar
  12. 12.
    Derking JH, Holland HJ, Lerou PPPM et al (2012) Micromachined Joule-Thomson cold stages operating in the temperature range 80-250 K. Int J Refrig 35:1200–1207CrossRefGoogle Scholar

Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.School of Computer and Information EngineeringLuoyang Institute of Science and TechnologyLuoyangChina
  2. 2.Vehicle & Transportation Engineering InstituteHenan University of Science and TechnologyLuoyangPeople’s Republic of China

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