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Document IIF

Simulation de la réponse transitoire des réfrigérateurs utilisant une source de chaleur avec maîtrise de la température en continu.

Simulation of the transient response of heat driven refrigerators with continuous temperature control.

Auteurs : VARGAS J. V. C., HORUZ I., CALLANDER T. M. S., FLEMING J. S., PARISE J. A. R.

Type d'article : Article, Article de la RIF

Résumé

A theoretical and experimental study is presented and a mathematical model is introduced for a heat driven refrigeration system operating with continuous temperature control. The model consists of a refrigerated space, an absorption refrigerator, operating irreversibly, a temperature sensor and a reference signal, and a power law control action. The steady-state behaviour of the absorption refrigerator model is validated by direct comparison between theoretical results and experimental data. The model is then used to identify an optimal thermal conductance allocation, for a fixed total thermal conductance inventory, such that the refrigeration rate is maximized and the "pull-down" time is minimized. A simulation of the system operating in a transient mode is carried out to show that closed-loop operation results in a large reduction of fuel consumption, with respect to the "on-off" operation. Appropriate dimensionless groups are identified and the generalized results reported in charts using dimensionless variables.

Documents disponibles

Format PDF

Pages : 648-660

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : Simulation of the transient response of heat driven refrigerators with continuous temperature control.
  • Identifiant de la fiche : 1999-0830
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 21 - n. 8
  • Date d'édition : 12/1998

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