化工进展2016，Vol.35Issue(12)：3871-3878,8.DOI:10.16085/j.issn.1000-6613.2016.12.018
船舶烟气余热驱动有机朗肯循环的系统性能分析
Performance analysis for waste heat recovery system of ship diesel engine based on organic Rankine cycle
摘要
Abstract
An organic Rankine cycle(ORC)was designed to recover the exhaust energy from the ship diesel engine. Considering the cooling water circulation,the effects of evaporation temperature and expansion ratio on the system performance were analyzed. The economic objective function is defined as the ratio of heat exchanger area required to the system net power output. The comprehensive evaluation function is the weighted sum of the economic objective function and exergy efficiency. The optimum condensation temperature is determined by taking different optimization objectives. The results showed that the thermal efficiency increased first with the rise of evaporation temperature and then decreased. There is the optimal evaporation temperature under a constant expansion ratio. The system has different optimal condensation temperatures with different optimization objectives. It is better to determined the optimal condensation temperature using the comprehensive evaluation function as the optimization objective. The optimal evaporation temperature of the ORC system withR245fa as working fluid is 390K and the optimum condensation temperature is 316K. Besides,the expansion ratio of the system is 6.6 and the thermal efficiency can reach 12%. It was also found that the choice of working fluids had a great effect on the system performance.关键词
有机朗肯循环/余热回收/经济性能/效率/参数优化Key words
organic Rankine cycle/waste heat recovery/economic performance/efficiency/parameter optimization分类
能源科技引用本文复制引用
朱轶林,李惟毅,孙冠中,唐强,高静,曹春辉..船舶烟气余热驱动有机朗肯循环的系统性能分析[J].化工进展,2016,35(12):3871-3878,8.基金项目
天津市科技计划（14ZCDGGX00788）及环保部公益项目（201509010）。 （）
