Concevoir et faire fonctionner des systèmes frigorifiques sûrs à ammoniac.

Designing and operating safe ammonia refrigeration systems.

Auteurs : PEARSON A.

Résumé

This paper examines the causes of typical accidents experienced in industrial refrigeration and compares requirements for ammonia and fluorocarbon system design. Key considerations for the safe operation of ammonia systems are identified and explained. Analysis of accident statistics at local, national and international level demonstrates that there is not a significant difference in terms of fatality or serious injury between ammonia and other refrigerants. It is clear that the requirements of safety standards provide sufficient control measures to reduce risk to acceptable levels, provided the safety standards are followed in the design, installation and maintenance of the system. It is also evident from international reports on major releases of ammonia that those seriously affected by the release are always in the immediate vicinity of the leak. The paper notes that the internationally recognised requirements for refrigeration safety contained in standards such as ASHRAE15, EN378 and ISO5149 are sufficient to ensure the safety of employees in the immediate vicinity of ammonia plants and members of the public in the near neighbourhood. The experience of fatal accidents and serious injuries in the United States of America and the United Kingdom are compared, and it is concluded that a strict, detailed bureaucratic system of registering, monitoring and reporting details of ammonia plants in construction and in operation does not seem to reduce the risk or serious incidents.

Détails

  • Titre original : Designing and operating safe ammonia refrigeration systems.
  • Identifiant de la fiche : 2008-1997
  • Langues : Anglais
  • Sujet : Réglementation
  • Source : Technological innovations in air-conditioning and refrigeration industry + CD-ROM.
  • Date d'édition : 08/06/2007

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