Energy efficiency evaluation method of large temperature difference air conditioning water systems

Analyses the energy efficiency influencing factors of the large temperature difference air conditioning water system, and obtains the calculating method and evaluation criteria to judge whether the system is energy saving. Takes the typical operating mode parameters of the air conditioning system as examples, calculates the critical relative change rate of the COP under different operating modes, and draws the conclusion that only those whose relative change rate of COP is less than the critical value, the large temperature difference system has the energy efficiency effect.