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Document IIF

Optimisation thermodynamique de l'échangeur de chaleur de récupération pour les cryorefroidisseurs Joule-Thomson en utilisant la méthodologie de surface de réponse.

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

Auteurs : LIU Y., LIU L., LIANG L., et al.

Type d'article : Article, Article de la RIF

Résumé

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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Format PDF

Pages : 155-165

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    20 €

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Détails

  • Titre original : Thermodynamic optimization of the recuperative heat exchanger for Joule-Thomson cryocoolers using response surface methodology.
  • Identifiant de la fiche : 30016328
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 60
  • Date d'édition : 12/2015

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