Research on Energy Efficiency Ratio Testing Method for Chiller Plant System Operation in Hot Summer and Warm Winter Zone
In order to solve the problem of the existing testing methods for energy efficiency ratio in central air conditioning chiller plants,which either have excessively long testing periods or fail to adequately consider the efficiency under different load conditions,this study proposes a continuous 7-day testing method for the energy efficiency ratio of chiller plant systems in hot summer and warm winter zone.By combining theoretical analysis with practical measurements,the study analyzes the feasibility and applicability through testing in seven typical buildings of different building types both within the same city and different cities within the same climatic zone.The deviation analysis of the energy efficiency ratio between the continuous 7-day testing and the average annual operating efficiency ratio shows an average proportion of 59%within±5%deviation and an average proportion of 98%within±10%deviation.The results indicate that the continuous 7-day testing method for the energy efficiency ratio of chiller plant systems is feasible and applicable.