Refrigeration systems with the night radiative cooling effect for different regimes and climatic conditions

For refrigeration industry application of night radiative cooling effect can reduce energy consumption and facilitate usage of environmentally friendly refrigerants. This effect allows to use cold of outer space and introduces the physical process of radiative heat transfer of the Earth (objects) into the refrigeration cooling system. The scheme of the refrigeration system operating with radiative cooling depends on the location of the cooled object and the temperature regime set. For the purpose of this research, two zones are conventionally distinguished, according to climatic conditions: northern and southern. Objects that have an average temperature in winter below -15 ° C considered to relate to northern zone, and those who have average temperature above -15 ° C relate to south zone. Traditional refrigeration systems are designed for the main temperature regimes used in the refrigeration industry, from freezing to air conditioning, regardless of the region. Based on the analysis performed within the research different refrigeration systems and their schemes, which consist of regular refrigeration machine and additional installation operating on radiative cooling, are offered.