An analytical model for hot-gas defrosting of a cylindrical coil cooler. Part 1: Model development
- Kuwait Univ., Safat (Kuwait). Dept. of Mechanical Engineering
- Univ. of Florida, Gainesville, FL (United States). Dept. of Mechanical Engineering
In a companion experimental investigation (ASHRAE RP-622), it was observed that the evaporation and sublimation heat rates were significantly larger than the melting heat rate during hot-gas defrosting. Part of the rationale for conducting the present investigation was to validate the above observation. Thus, the purpose of this paper is to describe a mathematical model for predicting the evaporation, sublimation, and melting heat rates on a frosted cylindrical cooler during hot-gas defrosting. The frosted cylindrical cooler represents a single nonfinned tube in the first row of a typical coil employed in industrial refrigeration applications. This model should provide some insight into the hot-gas defrosting processes typically found in the operation of true-to-life industrial freezers.
- Sponsoring Organization:
- American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc., Atlanta, GA (United States); Florida Univ., Gainesville, FL (United States)
- OSTI ID:
- 649492
- Report Number(s):
- CONF-980123--
- Country of Publication:
- United States
- Language:
- English
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