空调器运行过程能值分析  

Emergy Analysis on the Operation of an Air Conditioner

作　　者：卢苇[1] 郑立星 曾钰姣[1] 潘树林[1] 

机构地区：[1]广西大学化学化工学院,广西南宁530004

出　　处：《应用基础与工程科学学报》2011年第3期362-369,共8页Journal of Basic Science and Engineering

基　　金：广西自然科学基金(桂科青0991007);广西大学科研基金(XBZ090081)

摘　　要：建立了空调器运行过程能值分析模型,依据该模型构建了能值转换率(Tr)、净能值产出率(EYR)、环境负荷率(ELR)和能值可持续性指数(ESI)等能值指标,并给出了环境服务的计算式.随室外环境温度升高或室内回风温度降低,空调器的Tr增大、EYR减小、ELR增大、ESI减小,表明空调器消耗的资源增多,系统可持续性降低.能值分析比常规热力学分析深刻、全面,能值指标反映了系统包括能源在内的总资源利用效率.此外,能值分析实现了不同类型污染对环境影响的定量比较,发现空调器运行过程产生的热污染(能量型污染)所消耗的环境服务比物质型污染多7000余倍.The emergy analysis model of the operation of an air conditioner was established and some emergy indicators,such as transformity（Tr）,net emergy yield ratio（EYR）,environmental loading ratio（ELR）and emergy sustainable index（ESI）,were proposed based on this model.Besides,the formulae of environmental services were put forward.With the increase of outdoor ambient temperature or the decrease of indoor return air temperature,Tr and ELR rise,while EYR and ESI diminish.Those indicate that the air conditioner consumes more resources and the system sustainability decreases.The emergy analysis is more profound and comprehensive than the conventional thermodynamic analysis.The proposed emergy indicators present the total resources（including emergy resource）use efficiency of the system.Furthermore,different types of pollution can be quantitatively compared with according to emergy analysis,which finds out the thermal pollution（a kind of energetic pollution）from the operation of an air conditioner consumes more than 7000 times as many environmental services as the simultaneous material pollution does.

关 键 词：能值 空调器 环境影响 评价 

分 类 号：X24[环境科学与工程—环境科学] TU111[建筑科学—建筑理论]