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Thermodynamic optimization of the recuperative heat exchanger for Joule-Thomson cryocoolers using response surface methodology.

Author(s) : LIU Y., LIU L., LIANG L., et al.

Type of article: Article, IJR article

Summary

In this paper, a numerical study is performed to investigate the effects of geometrical parameters on the thermodynamic performance of the helically coiled recuperative heat exchanger in a Joule–Thomson (J–T) cryocooler. A novel optimization model is developed based on the available work loss minimization for the recuperative heat exchanger. The experiments are conducted based on four factors: L, Dt, S, Ds, one level: Nd, and the results are analyzed according to the principle of Response Surface Methodology (RSM). The final predicted optimum combination of geometrical parameters for the heat exchanger is: L?=?430.5?mm, Dt?=?0.45?mm, S?=?5.41, Ds?=?4.3?mm. The optimization results are in good agreement with our model, and the deviations of predicted values are less than 1.32%. The model and results presented here for the optimization of the heat exchanger can provide helpful guidance and a new way for the optimization of J–T cryocooler.

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Pages: 155-165

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Details

  • Original title: Thermodynamic optimization of the recuperative heat exchanger for Joule-Thomson cryocoolers using response surface methodology.
  • Record ID : 30016328
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 60
  • Publication date: 2015/12

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