采用[火用]效率进行冷热源能效评价的探讨  

Energy efficiency evaluation of cold and heat sources with exergy efficiency

作　　者：赵晓宇 贺延壮 牛璐琳 胡为森 Zhao Xiaoyu;He Yanzhuang;Niu Lulin;Hu Weisen(TongFa ng Technova tor Int.(Beijing)Co.,Ltd.,Beijing,China;不详)

机构地区：[1]同方泰德国际科技(北京)有限公司 [2]珠海横琴能源发展有限责任公司

出　　处：《暖通空调》2020年第11期40-45,49,共7页Heating Ventilating & Air Conditioning

摘　　要：分析了现行标准中冷热源能效指标计算中存在的问题,引入[火用]概念,从量和质两方面综合评价能量的利用情况。根据[火用]效率进行定量计算,可以对锅炉、蒸气压缩式冷水机组、吸收式冷水机组、火力发电、热电联产和冷热电联产等不同冷热源系统进行能源利用效率的比较;根据[火用]效率还可以找到设备节能的关键环节。建议合理选择环境基准状态,实现冷热源循环工质各工况点参数的监测和检测。Analyses the problems existing in the energy efficiency index calculation of the current standards.Introducing the concept of exergy,evaluates the energy utilization from quantity and quality.Applying exergy efficiency to quantitative calculation,compares the energy utilization efficiency of different cold and heat source systems such as boiler,steam compression chiller,absorption chiller,thermal power generation,combined heat and power,combined cooling heating and power.According to the exergy efficiency,finds the key points of energy saving of the equipment.Suggests that the environmental reference state should be selected reasonably to monitor and detect the parameters of the working medium of the cold and heat source loop in different working conditions.

关 键 词：能效评价 冷热源系统 能量品位 [火用] 热力学完善度 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]