Application of a Co2 System in a Cold Store

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Application of a Co2 System in a Cold Store

Application of a Co2 system in a cold store


This paper describes four single stage CO2 (R744) vapour compression refrigeration systems servicing twomedium sized freezer stores located in a food processing facility situated in Brisbane, Australia. Theprocesses which lead to the selection of carbon dioxide as a refrigerant as well as the selection ofcondensing medium are detailed. In addition, the general plant design concept, plant control, automaticdefrost method, practical issues relating to the installation and practical difficulties encountered duringcommissioning are described in detail. An assessment of the long term reliability of the R744 systems ismade and future applications of R744 as a refrigerant are discussed.

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