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The Problem with Commercial RefrigerationCommercial refrigeration systems are designed to store food products at a pre-determined temperature, in order to extend their shelf life. In almost all cases a thermostat is used to determine changes in air temperature, cycling the compressor on and off to maintain that level.
By maintaining the temperature of the air inside the cabinet at a preset level it is anticipated that any stored food will take on the same temperature. However, due to the differing thermal characteristics of air to most food products, air temperature is rarely an accurate measure of food temperature. Each compressor start-up results in high-energy demands. Unnecessary cycling due to fluctuations in air temperature results in unnecessary energy demands. Over-sizing of the motor and compressor results in the refrigeration system using more energy than required, even during normal operating conditions. |
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