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Évaluation quantitative des risques associés à l'utilisation du R290 dans les meubles de vente utilisés pour les crèmes glacées.

Quantitative risk assessment of R290 in ice cream cabinets.

Auteurs : COLBOURNE D., ESPERSEN L.

Type d'article : Article, Article de la RIF

Résumé

This study addresses the flammability risk of hydrocarbon (HC) refrigerants within horizontal type ice cream cabinets (ICC). Quantitative risk assessment (QRA) is used to estimate the likelihood of ignition of leaked refrigerant and severity of the consequences. Variables were evaluated including effect of room size, positioning of ICC, compressor compartment fan airflow and ignition source distribution. To strengthen the QRA, tests were carried out for refrigerant leakage and effects of ignition to validate dispersion and consequence models. Ignition frequency is between 1 × 10-8 and 2 × 10-13 per year. The maximum overpressure and thermal intensity within the room is 3 kPa and 200 s (kW m-2)4/3, respectively and 6.5 kPa and 20 s (kW m-2)4/3 from within the compressor compartment. The risks were found to be negligible compared to background and other reference values.

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Format PDF

Pages : 1208-1219

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Détails

  • Titre original : Quantitative risk assessment of R290 in ice cream cabinets.
  • Identifiant de la fiche : 30008073
  • Langues : Anglais
  • Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 36 - n. 4
  • Date d'édition : 06/2013

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