High Energy-Saving DX (Direct Expansion) System for Automobile Environmental Test Room

Abstract

We explain the temperature control method of the advanced DX system that combines the evaporative pressure regulator (EPR) with the inverter control of the compressor, corresponding to a wide range temperature setting required of the environmental test room. The advanced DX system does not need the re-heater. Therefore, it reduces the energy consumption significantly. We report the results of the simulated energy-saving performance of the advanced DX system compared with the conventional DX system.