To prevent global warming, the refrigerant HFC 134 a currently used in automobile air-conditioners has been slated for eventual elimination. CO2, a natural refrigerant, has attracted attention as an alternative. Evaporator, gas-cooler, intercooler and compressor efficiencies have been improved, and a high-pressure control method has been developed to maximize COP (Coefficient Of Performance) in automobile airconditioning using a supercritical refrigeration cycle with CO2, as the refrigerant. An evaluation of the system verified that these improved components provide COP equal to or better than that of the systems using HFC 134 a.
Development of automobile air conditioning system using CO2 refrigerant
Technical Review - Mitsubishi Heavy Industries ; 37 , 3 ; 78-82
2000
5 Seiten, 7 Bilder, 2 Tabellen, 1 Quelle
Article (Journal)
English
Mixed refrigerant, preparation method and application thereof and automobile air conditioning system
European Patent Office | 2020
|Method and system for detecting refrigerant leakage rate of automobile air conditioning system
European Patent Office | 2024
|Refrigerant filling method, device, medium and equipment for automobile air conditioning system
European Patent Office | 2025
|A new method for controlling refrigerant flow in automobile air conditioning
Tema Archive | 2004
|