一种制冷机组能效定量评价方法

A quantitative evaluation method for energy efficiency of chillers

在冷水机组比选过程中,通常会优先选择能效高、变工况性能好的产品,但冷水机组的性能对价格的影响,难以定量评价。通过对逐时负荷和气象参数的研究和变工况条件下COP值的计算,得出不同品牌机组年运行费用差异,并折算成价格因素,将机组性能量化,用此方法,可方便不同品牌的冷水机组间进行比选。

In the process of comparison and selection of water chillers,the products with high energy efficiency and good off design performance are usually preferred,but the impact of water chiller performance on price is difficult to evaluate quantitatively.In this paper,through the study of hourly load and meteorological parameters and the calculation of COP under off design conditions,the annual operating cost differences of different brands of chillers are obtained,and converted into price factors to quantify the performance of chillers.This method can be popularized to facilitate the comparison between different brands of chillers.