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Multi-temperature commercial refrigerator cabinet development


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Multi-temperature commercial refrigerator cabinet development

This paper describes the development of a novel 4-compartment, multi-temperature refrigerator with unique flexibility between chilled, frozen and ambient food storage. Drawer storage compartments were used to prevent loss of cold air during door openings and these drawers were insulated to maintain the temperature, even during frequent drawer openings. As the unit was initially designed for the catering trade each drawer was removable and could be used with a lid as an insulated box suitable for short-term storage or local delivery of food. The temperature in each drawer was individually controlled by an independent, self-contained air-circulation system. Because each drawer was independent there was no airborne cross-contamination of odours and bacteria between drawers and each draw could be controlled to a different temperature (-20 up to +15°C).