Authors

Calculation of effective refrigeration capacity for refrigeration system using night sky radiant cooling

UDC 621.565.83

Calculation of effective refrigeration capacity for refrigeration system using night sky radiant cooling

Alexandr P. Tsoy, Granovsky A. S., Aleksandr V. Baranenko, Eglit A. Yu.

Abstract
The article reviews the process of temperature change in the freeze collecting accumulator of the refrigeration system using effective radiation. The main elements of such a system are night sky radiating surface (radiator), freeze collecting accumulator and means of transporting cooling medium from accumulator to radiator. The calculation results of cooling process modelling under different ratios of accumulator volumetric capacity to the square of the radiator system are presented. The formula for engineering calculation of the effective amount of freeze, generated for one night, is given. It is shown that average effective radiation per night be calculated with a proper accuracy from average night air temperature, average temperature of the dew point and general cloud amount. The temperature of the radiating surface can be calculated as difference between average air temperature and expected cooling value, the latter depending on accumulator capacity.

Keywords: effective radiation, refrigerating systems, ray cooling from the night sky, non-traditional ways of cooling, night sky radiant cooling.

All references

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