Exergy Analysis of Stirling Cycle Cryogenerator

  • K. G. Narayankhedkar
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 43)

Abstract

Exergy or the available work energy function is a useful concept for analysing various systems. This paper attempts to present exergy analysis for Stirling cycle cryogenerator. The cycle deviates from the ideal cycle due to (1) finite temperature difference (Δt) during heat transfer processes and (2) loss of refrigerating effect due to regenerator ineffectiveness. The analysis shows that at lower temperature ratios the influence of Δt on exergetic efficiency is marginal. However, the influence of regenerator effectiveness on the exergetic efficiency even at lower temperature ratios is considerable. The combined effect of Δt and regenerator effectiveness leads to the practical case and the same also has been analysed.

Keywords

Relative Efficiency Heat Transfer Process Pressure Swing Adsorption Exergy Analysis Dead State 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    B.B. Parulekar and K.G. Narayankhedkar, Use of Exergy Chart for the Study of Air Liquefaction Processes, Indian Journal of Cryogenics, 4:78 (1979).Google Scholar
  2. 2.
    H.A. Rangrej and K. G. Narayankhedkar, Exergy Analysis of a Low Temperature Heat Pump, Cryogenics, 23:148(1983).CrossRefGoogle Scholar
  3. 3.
    M. Thirumaleshwar, Exergy Method of Analysis and its Application to a Helium Cryorefrigerator, Cryogenics, 19:355 (1979).CrossRefGoogle Scholar
  4. 4.
    M. Thirumaleshwar and S.V. Subramanyam, Exergy Analysis of a Gifford-McMahon Cycle Cryorefrigerator, Cryogenics, 19:355(1979).CrossRefGoogle Scholar
  5. 5.
    R. Banerjee, K.G. Narayankhedkar and S.P. Sukhatme, Exergy Analysis of Pressure Swing Adsorption Processes for Air Separation, Chemical Engg. Science, 45: 467 (1990).Google Scholar
  6. 6.
    R. Barron, Cryogenic Systems, McGraw Hill, New York (1966).Google Scholar
  7. 7.
    M.D. Atrey, S.L. Bapat and K.G. Narayankhedkar, Cyclic Simulation of Stirling Cryocoolers, Cryogneics 30:341 (1990).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 1998

Authors and Affiliations

  • K. G. Narayankhedkar
    • 1
  1. 1.Indian Institute of TechnologyBombay, MumbaiIndia

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