Share

Exergy analysis of helium liquefaction systems based on modified Claude cycle with two-expanders.

Author(s) : THOMAS R. J., GHOSH P., CHOWDHURY K.

Type of article: Article

Summary

Large-scale helium liquefaction systems, being energy-intensive, demand judicious selection of process parameters. An effective tool for design and analysis of thermodynamic cycles for these systems is exergy analysis, which is used to study the behavior of a helium liquefaction system based on modified Claude cycle. Parametric evaluation using process simulator Aspen HYSYS® helps to identify the effects of cycle pressure ratio and expander flow fraction on the exergetic efficiency of the liquefaction cycle. The study computes the distribution of losses at different refrigeration stages of the cycle and helps in selecting optimum cycle pressures, operating temperature levels of expanders and mass flow rates through them. Results from the analysis may help evolving guidelines for designing appropriate thermodynamic cycles for practical helium liquefaction systems. [Reprinted with permission from Elsevier. Copyright, 2010].

Details

  • Original title: Exergy analysis of helium liquefaction systems based on modified Claude cycle with two-expanders.
  • Record ID : 30002605
  • Languages: English
  • Source: Cryogenics - vol. 51 - n. 6
  • Publication date: 2011/06
  • DOI: http://dx.doi.org/10.1016/j.cryogenics.2010.12.006

Links


See other articles in this issue (11)
See the source

Indexing