13 Examination of Seasonal Energy Efficiency Ratio and Economical Analysis of Room Air Conditioner

Enthalpy-difference method has been utilized in this paper to test and analyze Seasonal Energy Efficiency Ratio (SEER) of normal model air conditioner and two-compressor model air conditioner with same refrigeration ability. According to test data, and combining the weather data of 6 cities, the energy efficiency of each product has been gotten in this paper. It shows that the average energy saving rate and average cost saving rate of these six cities of two-compressor air conditioner of these six cities is 22.12% and 6.29%, respectively, when compared with air conditioner with constant rotate speed.