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

被引：0
|
作者：
Hu B. [1 ,2 ]
Guo J. [1 ,2 ]
Huang S. [1 ,2 ]
机构：
[1] School of Chemical Engineering and Energy Technology, Dongguan University of Technology, Dongguan
[2] Guangdong Provincial Key Laboratory of Distributed Energy Systems, Dongguan
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2022年 / 43卷 / 07期
关键词：
Evaporation; Falling film evaporator; Geothermal energy; Heat transfer coefficients; Horizontal tube falling film; Rankine cycle;
D O I：
10.19912/j.0254-0096.tynxb.2020-1081
中图分类号：
学科分类号：
摘要：
A falling film evaporator heat transfer test plant for organic Rankine cycle(ORC) power generation system is built. The effects of spray density, initial temperature and flow rate of geothermal water on the heat transfer coefficient outside the tube are studied with R245fa as working fluid. The results show that the heat transfer coefficient increases first and then decreases with the increase of spray density of organic working fluid, initial temperature of geothermal water and flow rate of geothermal water. By analyzing the experimental results, the parameters of the existing empirical formulas of falling film evaporation outside horizontal tubes are modified, and the experimental correlation of heat transfer coefficients of falling film evaporation outside tubes under the combined action of multiple factors is obtained. © 2022, Solar Energy Periodical Office Co., Ltd. All right reserved.
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页码：493 / 498
页数：5
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