中央空调系统运行能耗优劣状态的判定指标

A Parameter for Evaluating Energy Consumption of Central Air-conditioning System

在中央空调系统中,有些消耗功率的必需设备并不能产生制冷量,但是在输送过程中的输送热量却与制冷机的冷量相关。考虑到制冷系统将末端收集的热量传输到外部各个环节必需的能量消耗,引入系统能耗比COSC值的概念。通过系统的COSC值大小,不但可以直观地评定运行的制冷系统在不同负荷、不同季节下的能耗状态,还可以简单直接地对比两个不同的制冷系统的能耗优劣。

In a central air-conditioning system,some of the necessary equipments consume power but do not contribute any refrigerating capacity,but they associate with the chillers in the heat transportation.Considering the necessary energy consumption in each link for the heat transfer from the interior to the exterior of building,the Coefficient of System Consumption(COSC)is introduced to describe the system′s energy consumption level.COSC value of the system can not only evaluate the energy consumption of an air-conditioning system under different load and different seasons directly,but also compare the energy consumption level between two different cooling systems simply.