热源温度对有机朗肯循环发电特性的影响

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英文篇名：Effect of Heat Source Temperature on Organic Rankine Cycle Power Generation 作者：张永峰 ; 王子龙 英文作者：ZHANG Yong-feng;WANG Zi-long;School of energy and power engineering,University of Shanghai for Science and Technology; 关键词：有机朗肯循环 ; 热源温度 ; 热力性能 ; 发电功率 英文关键词：organic Rankine cycle;;heat source temperature;;thermal performance;;power generation 中文刊名：RNWS 英文刊名：Journal of Engineering for Thermal Energy and Power 机构：上海理工大学能源与动力工程学院; 出版日期：2019-05-14 10:57 出版单位：热能动力工程 年：2019 期：v.34;No.222 基金：国家自然科学基金青年项目(51606126);; 上海市自然科学基金(15ZR428800)~~ 语种：中文; 页：RNWS201905005 页数：6 CN：05 ISSN：23-1176/TK 分类号：23-28

摘要

基于搭建的以R245fa为工质的有机朗肯循环发电系统,通过调节电加热器功率来研究热源温度对有机朗肯循环发电特性的影响。研究表明:当冷凝温度不变时,随着热源温度的升高,蒸发压力升高,冷凝压力基本不变;膨胀机的压比和压差都增大;当热源温度由86℃升到99℃时,净输出电功率从4.7 kW增加到8 kW,发电效率由7.55%升至8.4%,功率和效率都近似线性增加。
        The organic Rankine cycle power generation system based on R245 fa was built to study the influence of heat source temperature on the power generation characteristics by adjusting the power of electric heater.Results indicate: with constant cold source temperature,as the heat source temperature increases,the evaporation pressure increases and the condensation pressure remains unchanged,while the pressure ratio and pressure difference of the expander increase.When the heat source temperature is increased from 86 ℃ to 99 ℃,the net output power is increased from 4.7 kW to 8 kW and the power generation efficiency is increased from 7.55% to 8.4%.The power and efficiency are all increased approximately linearly.

引文

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