蒸气压缩循环蒸发冷却式冷水(热泵)机组用于商业建筑的经济性研究

作蒸发式冷凝机组应用于商业建筑的前景分析。基于某工程实例,介绍了该机组在夏季制冷工况下的设计思路,并根据当前市场上生产厂家提供的数据,分析了初投资、运行费用和维护费用,以计算投资回收期。结果表明,蒸发式冷凝机组能有效节省运行能耗,并且相对于常规水冷机组,其投资回收期分别为3.9年(含螺杆式压缩机)和5.4年(含磁悬浮离心式压缩机)。

The application prospect of evaporative condensing unit in commercial buildings is analyzed. Based on an engineering example, the design idea of the unit under summer refrigeration condition is introduced, and the initial investment, operation cost and maintenance cost are analyzed according to the data provided by the manufacturers in the market at present, in order to calculate the payback period of the investment. The results show that the evaporative condensing unit can effectively save energy consumption, and the investment recovery period is 3.9 years （including screw compressor） and 5.4 years （including magnetic suspension centrifugal compressor）, respectively, compared with the conventional water cooling unit.