Kohlendioxid als Kältemittel für Pkw-Klimaanlagen

In the framework of the European project RACE car A/C systems with CO 2 as refrigerant has been developped and tested intensively. The results of this project and the tests done at the Technical University of Munich are described. Mainly shown are the capacity data of the laboratory and the wind tunnel tests. The results are compared with a reference system of R134a. The main criteria are the environmental behaviour, the safety and the economy of operation. Considering all the influences CO 2 has a real chance to replace R134a-systems in the future.