Ecological safety of natural refrigerants in domestic refrigerating equipment. illusions and reality

摘要

This paper reveals that it is insufficient from the point of view of ecological safety to base the ecological evaluation of the perspectives of applying the new refrigerants upon the value of cooling capacity or coefficient of performance. Withinthe framework of solving the problem of reducing the greenhouse gases escape it is recommended to utilize the method of ecology-energetical analysis when choosing the refrigerants and comparing different types of the refrigerating equipment. For thispurpose, it is suggested further developing the methods of the TEWI (Total Equivalent Warming Impact) analysis, in which it is taken into account the additional emission of carbon dioxide connected with the energy consumption of manufacturing therefrigerating equipment and its operation. The TEWI structure is analyzed taking into consideration all the energy consumption connected with the production of cold. It is proved that the energy consumption connected with manufacturing the domesticrefrigerator contributes considerably to the TEWI value. For evaluating the perspectives of the new refrigerants utilization and the ecological examination of various devices of the refrigerating equipment, it is recommended to use the specific reducedTewi values.