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Étude par modélisation de l’évaluation des fuites de R290 des équipements frigorifiques commerciaux.

A modeling study on the R290 leaking assessment of commercial refrigeration equipment.

Numéro : 2196

Auteurs : ZHANG M., SHARMA V., CHEEKATAMARLA P.

Résumé

Due to the serious concerns about global warming, manufacturers have started phasing out high Global Warming Potential (GWP) refrigerants in commercial refrigeration equipment (e.g. R134a). As a replacement, propane (R290) is an environmental-friendly refrigerant for commercial refrigeration equipment because its GWP is only 3. However, propane is a flammable refrigerant, which is classified as Class A3 refrigerants per ASHRAE Standard, so safety is a very important consideration when such propane-based equipment is designed and deployed in buildings. In the event of a refrigerant leak, the flammability of the refrigerant depends on the refrigerant’s local concentration, which is highly affected by the indoor air environment including temperature and air flow. In this study, a computational fluid dynamics (CFD) model is developed to investigate the refrigerant leak from a commercial refrigeration equipment. The CFD model can visualize the flammable zones due the leaking. Moreover, the numerical model can also assist in the deployment of the commercial refrigeration equipment as well as the design of ventilation systems to keep safe of buildings.

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Pages : 8 p.

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Détails

  • Titre original : A modeling study on the R290 leaking assessment of commercial refrigeration equipment.
  • Identifiant de la fiche : 30033075
  • Langues : Anglais
  • Sujet : Réglementation
  • Source : 2024 Purdue Conferences. 20th International Refrigeration and Air-Conditioning Conference at Purdue.
  • Date d'édition : 17/07/2024

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