Adaptive design methodology of segmented non-uniform fin arrangements for trans-critical natural gas in the printed circuit heat exchanger

doi:10.1016/j.applthermaleng.2022.119011

	Adaptive design methodology of segmented non-uniform fin arrangements for trans-critical natural gas in the printed circuit heat exchanger
	Jiang, Qingfeng 1; Pan, Chongyao 1; Song, Xiao 2; Wan, Shiqing 1; Wen, Huabing 1; Li, Huaibing 3; Zhu, Qiang 3; Fu, Bao 4
刊名	APPLIED THERMAL ENGINEERING
	2022-11-05
卷号	216
关键词	PCHE Trans -critical Natural gas Non -uniform fin Optimum design
ISSN号	1359-4311
DOI	10.1016/j.applthermaleng.2022.119011
通讯作者	Jiang, Qingfeng(jiang_qingfeng@163.com)
英文摘要	As the core heat transfer equipment of a floating storage regasification unit (FSRU), the printed circuit plate heat exchanger (PCHE) has a significant impact on the gasification performance of liquefied natural gas (LNG). During LNG regasification process, natural gas undergoes a trans-critical process and its thermal properties such as density, viscosity and specific heat capacity vary considerably especially near the pseudo-critical point, which will probably lead to more volatile flow heat transfer mechanism. The traditional design scheme of uniform finned channel is difficult to give full play to the efficiency and compactness of PCHE because of lacking considering the local fluid thermodynamic variation. Therefore, this paper provides a novel design method for optimizing the flow channel profile of PCHE by applying adaptive segmented non-uniform finned micro -channels. Firstly, the entire flow channels are segmented by qualifying the gradient of density with temperature \|ap/at\| of trans-critical natural gas. Subsequently, within the constraints of heat exchange requirements, maximum allowable pressure drop, existing manufacturing techniques and structural strength, a mathematical optimization design model considering non-uniform fin arrangements and interlinked thermal states among these segmented channels is established. Then, to comprehensively improve entropy generation number and volume, Pareto solutions covering local flow channel parameters are obtained based on multi-objective genetic algorithm. Finally, the actual performance differences between two optimization methods respectively derived from the conventional uniform fin channels and the proposed non-uniform fin arrangements are compared based on distributed parameter model. The results show that the deviation of the entropy generation number between the optimized and validated values for the non-uniform design is very small at 6.5%, much less than that of 31.4% in the uniform design. Moreover, under the premise of the similar heat transfer efficiency, the volume for the PCHE by the non-uniform design can be reduced by 9.3%. These indicate that the proposed design methodology of segmented non-uniform fin arrangements indeed makes the PCHE more compact and enables the thermal-hydraulic performance better. The current work will serve as a framework for the design and optimization of PCHEs with drastic changes in fluid physical properties.
资助项目	National Key Research and Development Program of China[2018YFC0310400] ; Natural Science Foundation of Jiangsu Province of China[BK20190969] ; Post- graduate Research & Practice Innovation Program of Jiangsu Province[SJCX21_1774] ; High- tech Ship Research Project of Ministry of Industry and Information Technology of China[473]
WOS关键词	INTERMEDIATE FLUID VAPORIZER ; MULTIOBJECTIVE OPTIMIZATION ; PERFORMANCE ANALYSIS ; AIRFOIL ; FLOW ; CO2
WOS研究方向	Thermodynamics ; Energy & Fuels ; Engineering ; Mechanics
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000847999100001
资助机构	National Key Research and Development Program of China ; Natural Science Foundation of Jiangsu Province of China ; Post- graduate Research & Practice Innovation Program of Jiangsu Province ; High- tech Ship Research Project of Ministry of Industry and Information Technology of China
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/131860]
专题	中国科学院合肥物质科学研究院
通讯作者	Jiang, Qingfeng
作者单位	1.Jiangsu Univ Sci & Technol, Sch Energy & Power, Zhenjiang 212003, Peoples R China 2.Zhenjiang Huadong Safety Res Inst Co LTD, Zhenjiang 212003, Peoples R China 3.Zhangjiagang Furui Special Equipment Co LTD, Zhangjiagang 215637, Peoples R China 4.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Qingfeng,Pan, Chongyao,Song, Xiao,et al. Adaptive design methodology of segmented non-uniform fin arrangements for trans-critical natural gas in the printed circuit heat exchanger[J]. APPLIED THERMAL ENGINEERING,2022,216.
APA	Jiang, Qingfeng.,Pan, Chongyao.,Song, Xiao.,Wan, Shiqing.,Wen, Huabing.,...&Fu, Bao.(2022).Adaptive design methodology of segmented non-uniform fin arrangements for trans-critical natural gas in the printed circuit heat exchanger.APPLIED THERMAL ENGINEERING,216.
MLA	Jiang, Qingfeng,et al."Adaptive design methodology of segmented non-uniform fin arrangements for trans-critical natural gas in the printed circuit heat exchanger".APPLIED THERMAL ENGINEERING 216(2022).