A Measurment of Operation Realities and Radiation Quantity of Refrigerating Display Cabinets

Abstract

The factors affecting electric power consumption and operating rate of the four different refrigerating display cabinets were examined. Furthermore, relationship between surface radiation quantity and the electric powder consumption of the cabinets was examined by measuring surface temperatures of the cabinets with a infraed thermometer. The electric power consumption and operating rate were positively correlated with the room temperatures of 22 to 28°C and affected by the glass cover, night cover, antisweat heater, and radiator attached to the cabinet. It was found that fluctuation of the electric power consumption and operating rate were largely caused by heat which generated by the antisweat heater, and compressor attached to the cabinet and leaked through the glass cover into the refrigerated space.