(62f) Replacement of HCFC-22 Refrigerants with Ammonia: a Challenge for Hockey Arenas in Quebec
AIChE Spring Meeting and Global Congress on Process Safety
2009
2009 Spring Meeting & 5th Global Congress on Process Safety
43rd Loss Prevention Symposium
Food and Consumer Products Process Hazards
Tuesday, April 28, 2009 - 4:30pm to 5:00pm
The Montreal Protocol on substances that deplete the ozone layer is an international treaty designed to protect the ozone layer by phasing out the use of a number of substances responsible for ozone depletion. The protocol was adopted in 1987 and covers among other substances, HCFC-22 used as refrigerants.
The Canadian governments (federal and provincials) have put in place legislations to phase out and prohibit the use, production and importation of HCFC-22 substance and equipment using HCFC-22 as refrigerants.
Refrigeration systems are used in over 500 hockey arenas in the province of Quebec and 400 of them have to be modified to use a more ozone friendly refrigerant, i.e. ammonia.
Therefore, the risk associated with these sites is a major concern to the population due to their close proximity with the population.
The paper presents approaches that are used to reduce the risk to an acceptable level for the neighbours.
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