摘要
基于能量守恒定律的能效分析及能耗分析方法均无法区分能源之间的品质差异,因此在评价能量系统的节能性时存在局限。该研究利用(火用)方法对能源供应、设备系统和用户末端这一完整能量链的利用效果进行了综合考查,同时融合了能源"数量"和"品质"利用分析,提出了建筑用能(火用)耗指标。此外,研究结合建筑采暖用能进行了(火用)耗指标应用分析。结果表明,建筑用能(火用)耗指标为不同能源利用方案提供统一的量化分析方法,并查明用能系统(火用)量损失位置、大小及原因,该指标作为建筑用能系统的评价依据具有节能效益。
There is limitation in evaluating energy utilization of buildings with energy analysis as it ignores energy’s quality and focused on building only. This paper analyzes the energy quality,efficiency of equipment and building’s energy demand during energy utilization with exergy method. Exergy Consumption Index( ECI) of energy utilization in buildings is proposed on the basis of exergy analysis and energy consumption index,its influence factors is analyzed either. Besides,exergy consumption index is put into validation with an exergy analysis case conducted by Abdullah Yildiz. The result showed that exergy consumption index reflects the initial exergy consumption of energy use in buildings accurately. Methods to reduce exergy consumption index are all beneficial to energy conservation. It’s scientifical to carry through energy saving evaluation for building energy use with exergy method.
作者
李洋
杜松
李金桃
LI Yang;DU Song;LI Jin-tao(Guizhou Construction Science Research and Design Institute Limited Company of CSCEC,Guiyang 550006,China)
出处
《建筑节能》
CAS
2019年第4期83-86,共4页
BUILDING ENERGY EFFICIENCY
基金
贵州省科技计划项目(黔科合成果[2017]4958)<贵州省村镇建筑人居环境品质提升技术研究与示范>
贵州省科技计划项目(黔科合SY字[2015]3009)<绿色建筑适应性技术及信息化技术在生态智慧城区中的集成示范及研究>
关键词
建筑
能源利用
火用分析
节能评价
buildings
energy utilization
exergy analysis
energy conservation estimation
