化工学报2018，Vol.69Issue(6)：2639-2645,7.DOI:10.11949/j.issn.0438-1157.20171254
冷却水流量对ORC系统性能影响的实验研究
Effect of cooling water flow rate on power generation of organic Rankine cycle system
摘要
Abstract
A single screw expander was used as the power generation machine. The effect of cooling water flow rate on the performance of the ORC system and the single screw expander is studied to generate power from low-grade waste heat. The results show that when the cooling water flow rate from 8 m3·h?1to 19 m3·h?1, the output power and shaft efficiency of the single screw expander increase by 19.5 % and 13% from 4.31 kW and 36.38% to 5.15 kW and 41.1%, respectively. In this experimental system, when the cooling water flow is 12 m3·h?1and the power consumed by the circulation pump, the lubricating oil pump, the water pump and the cooling tower fan were all taken into account, the maximum value of the system net output power and the system net efficiency would be 2.44 kW and 2.47 % respectively. Therefore, the cooling water flow rate significantly affected the performance of an ORC system with low-grade waste heat, which could serve as important reference for designing cooling source system and optimizing ORC system performance.关键词
有机朗肯循环/冷却水流量/单螺杆膨胀机/净效率/焓Key words
organic Rankine cycle/cooling water flow rate/single screw expander/net efficiency/enthalpy分类
能源科技引用本文复制引用
吴玉庭,赵英昆,雷标,孟庆鹏,陈如梦,智瑞平,马重芳..冷却水流量对ORC系统性能影响的实验研究[J].化工学报,2018,69(6):2639-2645,7.基金项目
国家自然科学基金青年科学基金项目(51706004) （51706004）
国家重点研发计划项目(2016YFE0124900).supported by the National Natural Science Foundation of China (51706004) and the National Key R&D Program of China(2016YFE0124900). （2016YFE0124900）
