楼宇冷热电联供系统的热经济性分析  

Thermo-economic analysis of a cooling, heating and power generation system for buildings

作　　者：秦志红[1] 刘凤强[1] 曹家枞[1] 

机构地区：[1]东华大学环境科学与工程学院,上海200051

出　　处：《能源研究与信息》2003年第2期116-122,共7页Energy Research and Information

摘　　要：在对一实际楼宇冷热电联供系统热力学分析的基础上,对该系统作了热经济性分析。将作功能力法和热量法相结合,结合系统的实际经济数据,对该系统的成本进行分摊,得出了夏季变工况运行条件下冷、热、电三种产品的单位成本和单位能成本,并对其进行了分析比较。结果表明:当系统保持足够的负荷率时,这种系统具有经济上的竞争力;而补燃措施会给系统的效率和经济性带来很大的不利影响。A thermo-economic analysis of a gas turbine-based cooling, heating and power generation system for buildings was conducted in this paper, on the basis of a thermodynamic analysis of the system. With the workability and calorific methods, using operating data of the system, the costs of unit amount of exergy of cool, heat and electric power were calculated by apportioning the overall cost of the system among the cool, heat, and power. Discussions on the calculation results were carried out, which indicate that this type of BCHP system could be economically competitive if the system works at a sufficiently high load rate. In addition, the exergetic efficiency and efficient performance of the system may be greatly impaired by the supplementary firing.

关 键 词：热经济性 Yong成本 成本分摊 作功能力法 热量法 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]