摘要
有机朗肯循环(ORC)是一种以有机工质为能量载体,利用中低温余热发电的热电转换技术。文中基于ORC实验台,分析比较纯工质R1233zd(E)与不同混合比例的R1233zd(E)/R12324ze(E)混合工质在不同蒸发压力、热源温度及工质流量下的系统做功能力。实验运用控制变量法改变膨胀阀开度,调节导热油热源温度和工质泵流量控制系统的蒸发压力、热源温度和工质流量。实验结果表明:纯工质系统的蒸发压力、热源温度和工质流量的增加可以提高系统的净输出功率,混合工质表现出相似的变化规律。纯工质与混合工质的对比实验研究表明,在定泡点冷凝温度工况下,拥有热物性能更好的纯工质的系统性能优于其混合工质的系统性能。
Organic Rankine Cycle(ORC)is a thermoelectric conversion technology that uses organic working fluids as energy carriers and uses mid-and low-temperature waste heat to generate electricity.Based on the ORC test bench,the system work capacity of pure working fluid R1233zd(E)and R1233zd(E)/R12324ze(E)mixed working fluids with different mixing ratios were analyzed and compared under different evaporation pressures,heat source temperatures and working fluid flow rates.The controlled variable method was used in the experiment process to change the expansion valve opening adjust the heat source temperature of the heat transfer oil and the evaporation pressure,heat source temperature and working fluid flow rate of the working fluid pump flow control system,respectively.The experimental results show that the net output power of the system can be improved by increasing the evaporation pressure,heat source temperature and working fluid flow rate of the pure working fluid system,and the mixed working fluids show similar changes.The comparative experimental study of pure working fluid and mixed working fluid shows that the system performance of pure working fluid is better than mixed working fluid under the condition of fixed bubble point condensation temperature.The reason is that pure working fluid has better thermal properties.
作者
张昌远
徐斌
毛静雯
孟慧敏
孙小荷
ZHANG Chang-yuan;XU Bin;MAO Jing-wen;MENG Hui-min;SUN Xiao-he(School of Vehicle and Transportation Engineering,Henan University of Science and Technology,Luoyang 471003,Henan Province,China;Henan International Joint Laboratory for Energy Saving and Pollutant Control of Energy Power Plants,Luoyang 471003,Henan Province,China)
出处
《化学工程》
CAS
CSCD
北大核心
2022年第3期42-46,共5页
Chemical Engineering(China)
基金
河南省杰出外籍科学家工作室项目(GZS2020003)。
关键词
有机朗肯循环
新型工质
非共沸混合工质
冷凝条件
Organic Rankine Cycle
new working fluid
non-azeotropic mixing working fluid
condensing conditions
