Effect of evaporator heat transfer process on selection of mixture and operating condition in ORC system

doi:10.11949/j.issn.0438-1157.20181238

	Effect of evaporator heat transfer process on selection of mixture and operating condition in ORC system
	Chen, Yuting 1,2; Xu, Yanyan1,2,3 ; Wang, Lei 1,2; Ye, Shuang 1; Huang, Weiguang 1
	2019
发表期刊	化工学报
ISSN	0438-1157
卷号	70 期号:5 页码:1723-1733
发表状态	已发表
DOI	10.11949/j.issn.0438-1157.20181238
摘要	Under the condition of the same efficiency of other parts of organic Rankine cycle (ORC) system, the greater the heat exchange capacity of the evaporator, the smaller the irreversible loss, and the greater the potential of the system. Because of the phase transition temperature glide of mixture has good "matching" with the temperature change of heat source, this paper uses mixture as working fluid, and uses entransy flow dissipation rate to represent the irreversible loss of heat transfer process between mixture and heat source fluid. Combining T-Q diagram, the heat transfer process of mixture and heat source fluid in evaporator is analyzed. It is found that the area enclosed by the heat transfer curves of mixture and heat source fluid is the entransy flow dissipation rate, and the conditions of maximum heat transfer quantity and minimum irreversible loss of evaporator are obtained respectively, to guide the selecting of the optimal mixture and operation condition. According to the determined heat source, under the condition of maximum heat transfer quantity, a method for selecting the optimal mixture and optimal operating condition of the system based on the performance of evaporator is established. Adopting the heat source listed in reference paper, the optimum mixture and optimum outlet temperature are R600a/R134a(0.2/0.8) and 365.75 K, respectively. The heat transfer quantity of the evaporator is 3.3 times, under the condition that the parameters of other parts of the system are the same, the net output power of the system is 2.4 times than the optimum mixture in the literature. © All Right Reserved.
收录类别	EI ; 北大核心
出版者	Chemical Industry Press
EI入藏号	20192106946915
EI主题词	Computer simulation ; Evaporators ; Heat transfer ; Heat transfer coefficients ; Mixtures ; Phase diagrams ; Rankine cycle
EI分类号	Thermodynamics:641.1 ; Heat Transfer:641.2 ; Computer Applications:723.5 ; Chemical Plants and Equipment:802.1
原始文献类型	Journal article (JA)
引用统计
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/57609
专题	物质科学与技术学院_硕士生
通讯作者	Ye, Shuang
作者单位	1.Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai; 201210, China 2.University of Chinese Academy of Sciences, Beijing; 100049, China 3.ShanghaiTech University, Shanghai; 201210, China
推荐引用方式 GB/T 7714	Chen, Yuting,Xu, Yanyan,Wang, Lei,et al. Effect of evaporator heat transfer process on selection of mixture and operating condition in ORC system[J]. 化工学报,2019,70(5):1723-1733.
APA	Chen, Yuting,Xu, Yanyan,Wang, Lei,Ye, Shuang,&Huang, Weiguang.(2019).Effect of evaporator heat transfer process on selection of mixture and operating condition in ORC system.化工学报,70(5),1723-1733.
MLA	Chen, Yuting,et al."Effect of evaporator heat transfer process on selection of mixture and operating condition in ORC system".化工学报 70.5(2019):1723-1733.