Discussion on the Energy Efficiency of District Cooling System Based on Load Characteristics

District cooling system(DCS)was applied to a number of major projects in China,but their operational energy efficiency was not satisfactory.The reason for these results could be largely attributed to ignore that the application of district cooling technology must be established on good district load characteristics.Therefore,based on theoretical analysis how district load characteristics influence energy consumption,a new comprehensive concept of district load characteristics index has been proposed to evaluate the necessary load characteristics conditions need to achieve energy saving.The results reveal the largest long-distant pipe,district cooling peak load,time weighted average load rate,total pipe length are included in the new concept.