Abstract Small-scale Cryotiger coolers are based on commercially available hermetic oil-lubricated compressors and operate in a range of 70 to 200 K with different mixed refrigerants. Modern coolers efficiently operate with both flammable HC-based and nonflammable HFC-based refrigerants. This allows compliance with the requirements of many customers involved in the design of integrated systems. New HFC mixed refrigerants are compatible with the selected oils, and a family of refrigerant candidates allows retrofitting of the coolers with an optimal composition for a given temperature range. However, the configuration of the counter flow heat exchanger significantly influences refrigeration performance. Test data obtained for tube-in-tube heat exchangers are in a good agreement with computer modeling. This allows optimization of the performance and dimensions of the heat exchanger for a particular cooler. This paper compares the performance of the new nonflammable refrigerant mixtures with prior flammable refrigerant mixtures. Test data on the performance and operating parameters are presented for both steady state and cool down regimes.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Comparative Performance of Throttle Cycle Cryotiger Coolers Operating with Different Mixed Refrigerants


    Contributors:

    Published in:

    Publication date :

    2005-01-01


    Size :

    8 pages




    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




    Comparative Performance of Throttle Cycle Cryotiger Coolers Operating with Different Mixed Refrigerants

    Boiarski, M. / Podtcherniaev, O. / Flynn, K. | British Library Conference Proceedings | 2005


    Modern Trends in Designing Small-Scale Throttle-Cycle Coolers Operating with Mixed Refrigerants

    Boiarski, M. / Khatri, A. / Podcherniaev, O. et al. | British Library Conference Proceedings | 2001


    Modern Trends in Designing Small-Scale Throttle-Cycle Coolers Operating with Mixed Refrigerants

    Boiarski, M. / Khatri, A. / Podtcherniaev, O. et al. | Springer Verlag | 2002


    A Throttle Cycle Cryocooler Operating with Mixed Gas Refrigerants in 70 K to 120 K Temperature Range

    Khatri, A. / Boiarski, M. | British Library Conference Proceedings | 1997


    THROTTLE OPERATING DEVICE

    OSHIRO YUKIO / TSUKAMOTO KEISUKE | European Patent Office | 2022

    Free access