考虑变负荷能耗特性的技术经济最佳热化系数研究  

Study on Techno-Economic Optimal Cogeneration Share Coefficient Considering Energy Consumption Characteristics of Variable Load Conditions

作　　者：马国锋 刘明[1] 李卫东 严俊杰[1] MA Guofeng;LIU Ming;LI Weidong;YAN Junjie(State Key Laboratory of Multiphase Flow in Power Engineering,Xi’an Jiaotong University,Xi’an 710049,China;China Huaneng Group Clean Energy Technology Research Institute Co.,Ltd.,Beijing 102209,China)

机构地区：[1]西安交通大学动力工程多相流国家重点实验室,西安710049 [2]中国华能集团清洁能源技术研究院,北京102209

出　　处：《工程热物理学报》2024年第3期644-651,共8页Journal of Engineering Thermophysics

基　　金：国家自然科学基金资助项目(No.52022079)。

摘　　要：最佳热化系数可指导热电联机组容量配置,实现热电联产经济效益的最大化。本文提出了考虑变负荷能耗特性的技术经济最佳热化系数确定方法,建立热电联产系统变工况分析模型,计算获得了案例机组的变负荷能耗特性,优化得到了技术经济最佳热化系数。结果表明:不考虑、考虑变负荷能耗特性的技术经济最佳热化系数分别为0.750、0.702,不考虑变负荷能耗特性年节约费用的偏差达22.0%,考虑变负荷能耗特性后可获得更加精准的热电联产技术经济效益。The optimal cogeneration share coefficient can guide the capacity configuration of co-generation units and maximize the economic benefits of cogeneration.In this paper,a method for determining the techno-economic optimal cogeneration share coefficient considering the energy con-sumption characteristics of variable load conditions is proposed,the off-design working condition analysis model of cogeneration system is developed,and the variable load energy consumption char-acteristics of the case unit are calculated.The techno-economic cogeneration share coefficient is optimized.The results show that the optimal techno-economic heating coefficients are 0.750 and 0.702 respectively when considering and ignoring the energy consumption characteristics of variable load conditions,and the corresponding annual cost saving relative error without considering char-acteristics of variable load conditions reaches 22.0%.More accurate techno-economic benefits of cogeneration will be obtained by considering the energy consumption characteristics of variable load conditions.

关 键 词：区域供热 热电联产 变负荷 技术经济最佳热化系数 

分 类 号：TK123[动力工程及工程热物理—工程热物理]