中国电机工程学报Issue(35)：1-7,7.
利用汽包锅炉连续排污余热的有机朗肯循环发电系统
Power Generation Systems Using Continuous Blowdown Waste Heat From Drum Boilers Driving an Organic Rankine Cycle
摘要
Abstract
A power generation system which used the continuous blowdown waste heat to drive an organic Rankine cycle (ORC) was developed to improve the energy efficiency. The blowdown waste heat was recovered by organic fluid, and then generates power by expansion through a turbine. The analysis model of thermal performance for the system was established. The performance of seven ORC working fluids including R227ea, RC318, R236ea, R245fa, R245ca, R123 and R113 were optimized using the GRG algorithm, and the maximum power output was obtained. The results show that the optimum turbine inlet temperature increases as the critical temperature of the working fluid decreases for the o2 cycle which has saturated vapor entering the turbine. However, the superheating in the o3 cycle reduces the waste heat utilization ratio. Supercritical ORC improves the match of temperature profiles between the heat source and the working fluid, which helps to increase the system power output. But the high operation pressure and heat transfer deterioration due to the large specific heat near the critical point must be considered in the system design. The thermal performance and the power output of R236ea are better than the six other fluids.关键词
汽包锅炉/排污/余热发电/有机朗肯循环/工质Key words
drum boiler/blowdown system/waste heat power generation/organic Rankine cycle (ORC)/working fluid分类
能源科技引用本文复制引用
刘强,段远源,万绪财..利用汽包锅炉连续排污余热的有机朗肯循环发电系统[J].中国电机工程学报,2013,(35):1-7,7.基金项目
国家自然科学基金项目(51236004)；国家重点基础研究发展计划项目(973项目)(2009CB219805)。@@@@Project Supported by National Nature Science Foundation of China (51236004) （51236004）
National Basic Research Program of China (973 Program)(2009CB219805) （973 Program）
