针对相关文献关于常规冷水机组、高温冷水机组在高出水温度工况下的能效特性评价及对比研究方面的认识误区进行了分析。建议采用热力完善度来比较以上两种机组在同一出水温度工况下的能效特性,认为相关文献所研发的高温离心冷水机组能效特性并不优于现有的常规离心冷水机组。 According to the related literature, the misunderstandings about the energy efficiency characteristics of conventional chillers and high temperature chillers under the condition of high water temperature are compared and analyzed. It is suggested that the energy efficiency characteristics of the above two kinds of units under the same outlet temperature are compared by using the thermodynamic improvement degree. It is considered that the energy-saving characteristics of the high-temperature centrifugal chiller developed by the relevant literature are not superior to the conventional centrifugal chillers.