低品位热源驱动朗肯循环和卡琳娜循环的性能对比  

Comparison of energy performance of Rankine and Kalina cycles for low-grade waste heat recovery

作　　者：徐晓虹 Xu Xiaohong(Nanjing Suyang Energy Technology Co.,Ltd.,Nanjing 210038,China;Shanghai Daofa Energy Technology Co.Ltd.,Shanghai 202150,China)

机构地区：[1]南京苏杨生物科技有限公司,江苏南京210038 [2]上海道发能源科技有限公司,上海202150

出　　处：《现代盐化工》2018年第5期58-59,共2页Modern Salt and Chemical Industry

摘　　要：在炼油厂中,低品位的热能资源非常丰富,为不同的低品位热源选择合适的电力循环以实现有效的能源利用非常重要。有机朗肯循环和Kalina循环都是低温余热利用技术,这两种技术在废热利用方面各有优缺点。本文通过过程模拟,建立了中低温热源驱动的循环模型,并进行了参数影响分析。它表明,有机朗肯循环和Kalina循环根据余热的差异具有各自的优势。In the refneries, the low-grade waste heat resources are abundant, and it is important to select the appropriate power cycle for different low-grade heat sources to effectively use energy. Both the Rankine and Kalina cycles are low-grade heat recovery technologies, and all technologies have their own advantages and disadvantages. Through the process simulation, by comparing the two important indexes of cycle heat effciency and helium effciency, it is shown that when the waste heat is a composite heat source and the latent heat is equal to sensible heat or when the waste heat is the Rankine cycle is superior to the Kalina cycle when the latent heat source is used, and the Kalina cycle system is superior to the Rankine cycle when the residual heat is the sensible heat source.

关 键 词：动力循环 低品位热源 性能分析 

分 类 号：TE624[石油与天然气工程—油气加工工程]