Une Etude des fuites de frigorigEne en froid commercial
An investigation of refrigerant leakage in commercial refrigeration
Abstract Given that refrigerant demand is set to rapidly increase, long term solutions for leakage prevention are required to affect change in the industry. This paper presents the results of a project which investigated refrigerant leakage within two of the UK's major supermarket chains. Leakage data from 1464 maintenance records were analyzed. The analysis categorized the type, location of each leak and volume of refrigerant replaced during repair. Over 82% of the recorded leaks were from R404A refrigeration systems, and mainly consisted of pipe or joint failures or a leaking seal/gland/core located in the compressor pack and the high pressure liquid line. It is recommended that the industry focuses on improving design, installation and maintenance of pipework and valves, at the components that most often develop faults to minimize refrigerant leakage. Highlights Comprehensive analysis of a large number of F-gas leakage records was conducted. A methodology of categorizing refrigerant leakage incidents is summarized. Common locations and system components prone to leakage are identified. Long term solutions to control refrigerant leakage are discussed.
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