Abstract
This paper describes the procedure for the basic design of a commercial-scale ice pond refrigeration system which manufactures a relatively large volume of ice in the winter, and also refrigerates a storage building by heat exchange between the ice-cooled water and the air during the summer. The system was designed to store 180 metric tons of potatoes until next July following the harvest at Tokachi, Hokkaido. The cooling load on the storage building was calculated from the climatic data, and the expected height and thermal properties of the ice volume were estimated by using formulae based on experiments. Subsequently, the cooling power, the required number of fan coil units, and the dimensions of the ice volume were determined. The total cooling load of 75GJ, and the maximum cooling power of 13kW produced 1200m3 ice pond of 26m in length, 18m in width, and 3.5m in depth.
