燃气分布式能源“以热定电”和“以电定热”运行模式下的能效对比分析研究  

Research on Energy Efficiency Comparison of the Gas-distributed Energy under the Operating Modes of “Energy under Setting Electricity by Heat” and “Setting Heat by Electricity”

作　　者：吴巍 丁胜[2,3] 吴凯槟 WU Wei;DING Sheng;WU Kaibin(Hubei Electric Power Co.Ltd.,Wuhan 430077,China;Nari Group Corporation（State Grid Electric Power Research Institute）,Nanjing 211000,China;Nari（Wuhan）Electrical Equipment ＆Engineering Efficiency Evaluation Center,Wuhan 430074,China)

机构地区：[1]湖北省电力有限责任公司,湖北武汉430077 [2]南瑞集团公司(国网电力科学研究院),江苏南京211000 [3]南瑞(武汉)电气设备与工程能效测评中心,湖北武汉430074

出　　处：《工业加热》2018年第5期5-11,共7页Industrial Heating

摘　　要：为了分析对比"以热定电""以电定热"两种运行方式下燃气分布式能源系统的能效情况,通过设定两种运行模式下的燃气分布式能源系统通用能效指标,建立燃气分布式能源运行通用能效模型。以北京某医院为例,进行负荷模拟,设定机组配置,统计获取其全年逐时冷、热、电负荷,夏季/冬季典型日逐时负荷参数;结果分析得出,与"以热定电"相比,"以电定热"可以获取更高的负荷率、有效利用小时数,带来更高的发电效率,降低各类污染物的排放,但由于春秋过渡季节无冷热负荷,余热无法利用,整体效率和节能率有所降低。In order to analyze the energy efficiency of the distributed energy system under the two modes of ＂ setting electricity by heat＂ and ＂setting heat by electricity＂, the energy efficiency model of gas distributed energy was established by setting the general energy efficiency index of the two operating modes. Taking a Beijing Hospital as an example, the load simulation was carried out to set up the unit configuration and get the statistical data of annual hourlycold, heat, electricity load, and the typical day- hourly load parameters in summer / winter; Through the comparative analysis, compared to＂Setting electricity by heat＂ the ＂Setting heat by electricity＂ could get a higher load rate, the effective utilization hours, the higher power generation efficiency, reducing the discharge of various pollutants. However, the overall efficiency and energy efficiency declined with the waste heat could be used, due to the spring and autumn transition season without hot and cold load.

关 键 词：燃气分布式能源 以热定电 以电定热 能效指标 对比分析 

分 类 号：TU996.3[建筑科学—供热、供燃气、通风及空调工程]