热力发电2018，Vol.47Issue(3)：38-44,7.DOI:10.19666/j.rlfd.201706058
基于分液冷凝、多压蒸发非共沸有机朗肯循环流程设计及参数优化
Process design and parameter optimization of zeotropic organic Rankine cycle based on liquid-separation condensation and multi-pressure evaporation
摘要
Abstract
Organic Rankine cycle is characteristic of simplicity,safety and stability and so on.However,high cost and low efficiency are the main factors for impeding its application.This study proposes a zeotropic organic Rankine cycle(ORC) system based on liquid-separation condensation and multi-pressure evaporation(LMZORC).Mathematical programming optimization model is established and the advantages of this new cycle are verified by case study.The results show that the net power output of the proposed LMZORC is 5.05％～13.15％ higher than that of the basic ORC.In addition,the dryness of liquid-separation has a significant impact on the net power output of the LMZORC system.And in the studied working fluids,there is an optimal liquid-separation dryness to maximize net power output of the system.Furthermore,for the LMZORC system,when the temperature glide is almost equal to the temperature rise of cooling water,or the temperature glide is less than the temperature rise of the cooling water and the working fluid temperature glide is maximum,the maximum net power output can be obtained.Besides,the net power output of this proposed composition adjustment system with multi-pressure evaporation is nearly 2％ more than that without liquid-separation.This study has initially validated the advantage of LMZORC,which has great value for the application of this cycle in the future.关键词
有机朗肯循环/分液冷凝/非共沸工质/多压蒸发/组分调控/输出功/温度滑移Key words
organic Rankine cycle/liquid-separation condensation/zeotropic mixture/multi-pressure evaporation/composition adjustment/power output/temperature glide分类
能源科技引用本文复制引用
黄仁龙,罗向龙,陈健勇,陈颖,梁志辉,易知通..基于分液冷凝、多压蒸发非共沸有机朗肯循环流程设计及参数优化[J].热力发电,2018,47(3):38-44,7.基金项目
国家自然科学基金项目(51476037) （51476037）
广东省重大科技专项资金项目(2013A011402006) （2013A011402006）
广东省应用型科技研发专项资金项目(2016B020243010)National Natural Science Foundation of China (51476037) （2016B020243010）
Science and Technology Major Project of Guangdong Province(2013A011402006) （2013A011402006）
Applied & Development Special Funding Project of Guangdong Province (2016B020243010) （2016B020243010）
