低温余热发电蒸发器过热度与换热效率研究  

Study of Low-temperature Waste Heat Power Generation Evaporator Superheat and Heat Transfer Efficiency

作　　者：王正[1] 赵东[1] 

机构地区：[1]沈阳工业大学电气工程学院,沈阳110870

出　　处：《能源研究与管理》2012年第3期17-21,共5页Energy Research and Management

基　　金：工业余热发电系统关键技术研发(F10-049-2-00)

摘　　要：蒸发器压力的大小直接关系到换热器的热转换效率,为给实际余热发电系统提供必要的实验方法和数据,针对低于350℃的低温余热,结合工程的实际状况,选择了有机工质R600a作为余热发电系统的循环工质,同时搭建了低温余热发电系统。首先通过理论分析了蒸发器压力与换热效率的关系并进行了仿真,为实验和数据的分析提供必要的理论基础。在实验中,通过改变有热源的流量实验系统过热度的动态响应,验证了蒸发器压力与换热效率之间的关系。The size of evaporator pressure is related to the thermal conversion efficiency of the heat exchanger, in order to providing the necessary experiment method and the data for actual waste heat power generation system, in this paper, the low temperature waste heat below 350 ℃, combined with the actual situation of the project, selected organic refrigerant R600a as the working fluid of the waste heat power generation system. Build a low-temperature waste heat power generation system. The paper firstly theoretical analysis of the relationship between the evaporator pressure and the heat transfer efficiency and simulation, which provides the necessary theoretical foundation for the experiment and data analysis; In the experiment, by changing the source of heat flow observed in the experimental system superheat dynamic response, verify the relationship between the evaporator pressure and heat transfer efficiency.

关 键 词：低温余热发电技术 有机朗肯循环 蒸发器压力 离心泵 过热度 换热效率 

分 类 号：TK115[动力工程及工程热物理—热能工程] TB657[一般工业技术—制冷工程]