Energy transfer conversion mechanism and minimum entropy generation principle for convective heat transfer enhancement

doi:10.3969/j.issn.0438-1157.2014.z1.054

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Energy transfer conversion mechanism and minimum entropy generation principle for convective heat transfer enhancement
	Lu, Xiaoping; Yu, Shurong; Yu, Jianping; He, Ailing; Guo, Dandan
刊名	Huagong Xuebao/CIESC Journal
	2014-05-01
卷号	65 期号:SUPPL.1 页码:336-339
关键词	Energy conversion Energy transfer Entropy Mass transfer Convective heat transfer Entropy generation Entropy generation rate Field synergy Thermodynamic coupling
ISSN号	04381157
DOI	10.3969/j.issn.0438-1157.2014.z1.054
英文摘要	According to the relationship between generalized force and generalized flow, established all phase entropy generation rate equation, and analysed the relationship between entropy flow and total entropy generation of system. The results show that when the steady state, the decreasing of total entropy generation of system, the increasing of entropy flow and heat transfer, specifically, in the case that heat and mass transfer processes are both spontaneous process. When mass flow and heat flow are in the same phase, the decreasing of phase difference between mass flow and heat flow, the increasing of heat transfer, which reflects field synergy mechanism of energy transfer between two spontaneous process, with positive entropy generation rate, while in the case that heat transfer is nonspontaneous process, and mass transfer is spontaneous process. When mass flow and heat flow are in the opposite phase, the increasing of phase difference between mass flow and heat flow, the increasing of heat transfer, which reflects the thermodynamic coupling mechanism of energy conversion between spontaneous process, with positive entropy generation rate, and nonspontaneous process, with negative entropy generation rate. Between mass flow and heat flow from the same phase to the opposite phase, corresponding to the energy transfer mechanism of field synergy, and the energy conversion mechanism of thermodynamic coupling, all reflecting the minimum entropy generation principle for convective heat transfer. © All Rights Reserved.
语种	中文
出版者	Chemical Industry Press
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/112779]
专题	石油化工学院
作者单位	College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou 730050, Gansu, China
推荐引用方式 GB/T 7714	Lu, Xiaoping,Yu, Shurong,Yu, Jianping,et al. Energy transfer conversion mechanism and minimum entropy generation principle for convective heat transfer enhancement[J]. Huagong Xuebao/CIESC Journal,2014,65(SUPPL.1):336-339.
APA	Lu, Xiaoping,Yu, Shurong,Yu, Jianping,He, Ailing,&Guo, Dandan.(2014).Energy transfer conversion mechanism and minimum entropy generation principle for convective heat transfer enhancement.Huagong Xuebao/CIESC Journal,65(SUPPL.1),336-339.
MLA	Lu, Xiaoping,et al."Energy transfer conversion mechanism and minimum entropy generation principle for convective heat transfer enhancement".Huagong Xuebao/CIESC Journal 65.SUPPL.1(2014):336-339.