Experimental study on horizontal tube spray falling film evaporator in a low temperature geothermal binary cycle power system

Energy Reports

Jiajun Guo¹  Youyuan Shao²  Bing Hu³  Yu Yang³ 

[1] Corresponding author.;Dongguan City College, Dongguan 523419, China;Guangdong Provincial Key Laboratory of Distributed Energy Systems, Guangdong Provincial Engineering Research Center of Distributed Energy Systems, Dongguan University of Technology, Dongguan 523808, China;

关键词: Heat transfer coefficients;    Spray;    Evaporation;    Horizontal tube falling film;   

DOI  :  

来源: DOAJ

【 摘 要 】

The horizontal tube spray falling film evaporator is an efficient evaporation equipment, which has the advantages of good heat exchange effect, small equipment volume and low cost. In this paper, R245fa is used as the working fluid to build a heat transfer test platform for the horizontal pipe spray falling film evaporator of the Organic Rankine Cycle(ORC) power generation system. The effect of factors such as the spray density of the organic working fluid, the initial temperature of the geothermal water and the flow on the heat transfer coefficient outside the tube is studied. The experimental results show that with the increase of the spray density of the organic working fluid, the initial temperature of the geothermal water, and the flow of the geothermal water, the heat transfer coefficient first increases and then decreases.

【 授权许可】

Unknown