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Équation de charge pour les appareils frigorifiques commerciaux à faible charge d'hydrocarbures.

Charge equation for low charge hydrocarbon based commercial refrigeration appliances.

Numéro : pap. 2618

Auteurs : BEEK M. van, GORP T. van, et al.

Résumé

To assist manufacturers in their early stage of appliance design (i.e. component selection) an easy to implement charge equation, for hydrocarbon refrigerants R-290 and R-600a, has been developed. The equation estimates the appliance total refrigerant charge based on the type of refrigerant, the operating conditions and the internal volume of the components of the cooling system.

This paper presents the charge equation developed and discusses the derivation, assumptions and underlying calculations in detail. It is shown that the influence of refrigerant mass flux cannot be neglected. However, a simple approximation of the effect of mass flux is shown to provide good results. The equation is validated based on the total refrigerant charge of 10 charge optimized glass door bottle coolers, varying in refrigerated volume from 50 to 1200 dm3, having a cooling capacity between 50 and 1500 W and using hydrocarbon as the refrigerant. Validation showed an agreement within 15% between the calculated and the actual refrigerant charge of the appliances.

Documents disponibles

Format PDF

Pages : 10

Disponible

  • Prix public

    20 €

  • Prix membre*

    15 €

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

Détails

  • Titre original : Charge equation for low charge hydrocarbon based commercial refrigeration appliances.
  • Identifiant de la fiche : 30024690
  • Langues : Anglais
  • Source : 2018 Purdue Conferences. 17th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Date d'édition : 09/07/2018

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