蓄冷率对水蓄冷空调的经济性影响分析  

Economic Impact of Ice-Storage Rate on Chilled-Water Storage Air-Conditioning

作　　者：董泊[1] 王瑞婷[2] 

机构地区：[1]天津海泰建设开发有限公司,天津300384 [2]天津大学环境科学与工程学院,天津300384

出　　处：《建筑节能》2014年第3期15-21,共7页BUILDING ENERGY EFFICIENCY

摘　　要：针对天津某工程实例,结合天津当地阶梯电价,根据电力供应夏季白天"峰期"负荷与夜晚"谷期"负荷的差值较大的特点,分析空调是造成电网峰谷负荷差的主要原因之一。设计了水蓄冷空调的运行策略以及在不同蓄冷率下的几种设计方案。主要分析了蓄冷率对水蓄冷空调的初始投资、运行费用等经济性的影响,同时通过评价静态回收年限以及净现值提供了计算实际工程最佳蓄冷率的方法,得出最佳蓄冷率是确定制冷机容量和蓄冷装置容积的重要参考指标的结论。According to the large difference between peak load in the daytime and valley load at night in summer, the air-conditioning load is expounded as the main reason causing difference, with an engi- neering example in Tianjin and the local step tariff. The operation strategy of chilled-water storage air-con- ditioning is designed, as well as several design schemes in different storage rate. The effects of ice-storage rate on the initial investment, operating cost and other economic type are analyzed. The best storage rate of the actual project, as an important parameter to determine the capacity of refrigeration machine and volume of the apparatus, is calculated by evaluation of the static payback period and net present value method.

关 键 词：蓄冷率 水蓄冷空调 运行策略 经济影响 静态回收年限 净现值 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]