Fatigue life prediction of hypervapotron for CFETR divertor

doi:10.1016/j.fusengdes.2021.112985

	Fatigue life prediction of hypervapotron for CFETR divertor
	Chen, Xianfeng 1,2; Qin, Shijun 1; Wang, Qingfeng 1; Cao, Jin 1,2
刊名	FUSION ENGINEERING AND DESIGN
	2022
卷号	174
关键词	Divertor PFU Hypervapotron Thermal-mechanical analysis Fatigue life
ISSN号	0920-3796
DOI	10.1016/j.fusengdes.2021.112985
通讯作者	Qin, Shijun(sjqin@ipp.ac.cn)
英文摘要	The engineering design of China Fusion Engineering Testing Reactor (CFETR) will be finished in the end of this year. Compared with Experimental Advanced Superconducting Tokamak (EAST), this is a large development which means closer to commercial fusion reactors. The design objective of CFETR divertor requires a steady-state thermal load of 10-20MW/m2 exhaust. There are several design options for the CFETR divertor. Hypervapotron with its superior performance has been researched for several decades as one important candidate for future fusion device divertor. In this paper, a new design of hypervapotron plasma facing unit (PFU) was developed. Horizontal and longitudinal ribs were adopted to generate more vaporized cores to enhance heat transfer. Some optimizations were performed based on the allowable max heat flux (MAHF) to get the final design. Rensselaer Polytechnic Institute (RPI) boiling model of Eulerian Multiphase fluid and k-epsilon model of Viscous were chosen to deal with sub-cooled boiling. 3Sm rule and Bree-diagram was used to confirm the rationality of the structure after thermal-mechanical analysis. Numerical simulation results suggested that CuCrZr alloy will experience cyclic plastic strain. Based on this, fatigue life prediction of the hypervapotron PFU at a steady-state heat flux of 10MW/m2 were carried out through local stress-strain method, neuber curve and design fatigue life curve. Eventually, a fatigue life of approximately 1.2489 year was verified for CFETR divertor. This paper provides a systematic method for fatigue life prediction and reliability analysis of hypervapotron.
资助项目	National Natural Science Foundation of China[11975268] ; Collaborative Innova-tion Program of Hefei Science Center[2020HSC-CIP007]
WOS关键词	DESIGN
WOS研究方向	Nuclear Science & Technology
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000779058700004
资助机构	National Natural Science Foundation of China ; Collaborative Innova-tion Program of Hefei Science Center
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/128609]
专题	中国科学院合肥物质科学研究院
通讯作者	Qin, Shijun
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, Hefei Inst Phys Sci, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Chen, Xianfeng,Qin, Shijun,Wang, Qingfeng,et al. Fatigue life prediction of hypervapotron for CFETR divertor[J]. FUSION ENGINEERING AND DESIGN,2022,174.
APA	Chen, Xianfeng,Qin, Shijun,Wang, Qingfeng,&Cao, Jin.(2022).Fatigue life prediction of hypervapotron for CFETR divertor.FUSION ENGINEERING AND DESIGN,174.
MLA	Chen, Xianfeng,et al."Fatigue life prediction of hypervapotron for CFETR divertor".FUSION ENGINEERING AND DESIGN 174(2022).