大温差空调水系统的节能评价方法
Energy efficiency evaluation method of large temperature difference air conditioning water systems
摘要：
通过分析影响大温差空调水系统节能性的各种因素，得出判断采用大温差空调水系统是否节能的计算方法和评价标准。以空调系统的典型工况参数为例，计算出不同工况条件下冷水机组COP的临界相对变化率，得出结论：只有COP的相对变化率小于临界相对变化率时，大温差系统才具有节能效果。
关键词：大温差,节能,空调水系统,冷水机组,COP
Abstract：
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.
Keywords:large temperature difference, energy efficiency, air conditioning water system, chiller, COP