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Tests of an Ice Refrigerated Cooling Unit under Controlled Conditions^*

Agricultural Engineering Division, University of California, Davis

ABSTRACT

The initial investment and overhead costs appear to be disproportionately high for mechanically refrigerated milk cooling units for the small dairyman. The ice industry may have a possible market for ice on the farm and there is need for further data on ice cooling, so a series of tests were run on an ice refrigerator.¹

The unit as shown in
consisted of an insulated cabinet including an ice water tank of 1,180 pounds' capacity and. a storage compartment for 6-10-gallon milk cans. The lower section of a two-way surface cooler 24 inches in width was cooled by ice water circulated by a 5 g.p.m. direct connected centrifugal pump, both being mounted on one end of the cabinet. A wire basket holding 270 pounds of ice was suspended at the top of the ice water tank.

The operating characteristics of equipment may be determined by two techniques, viz: (1) Comprehensive tests on one or more units to permit analyzing the influence of various controlling factors, and (2) Surveys of general data on a large number of units in the field to predict the range within which operation under generalized conditions will probably occur.

^* Presented at American Dairy Science Association Meeting, Davis, California, July 14–15, 1931.

¹ The ice refrigerator used in these studies was built by the Horst Company, of Almeda, California