{"title":"Heat Transfer Characteristics Evaluation of Multi-Elbow Cooling System for Fusion Divertor under One-Sided Heating","authors":"S. Ebara, Kenya Mitobe, Y. Hamaji, H. Hashizume","doi":"10.1585/pfr.18.2405034","DOIUrl":null,"url":null,"abstract":"In this study, a cooling system for fusion reactor divertor that utilizes a swirling flow generated downstream of multi-elbow piping was proposed, and flow fields of the multi-elbow piping (triple elbow) were investigated using flow visualization experiment. Additionally, heat transfer experiment was conducted under one-sided heating condition to simulate a fusion reactor environment. The results revealed that the heat flux removed by the swirling flow in the elbow piping exceeded the critical heat flux in straight piping, and a heat removal performance of up to 25 MW / m 2 was achieved.","PeriodicalId":20247,"journal":{"name":"Plasma and Fusion Research","volume":" ","pages":""},"PeriodicalIF":0.8000,"publicationDate":"2023-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Plasma and Fusion Research","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1585/pfr.18.2405034","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, FLUIDS & PLASMAS","Score":null,"Total":0}
引用次数: 0
Abstract
In this study, a cooling system for fusion reactor divertor that utilizes a swirling flow generated downstream of multi-elbow piping was proposed, and flow fields of the multi-elbow piping (triple elbow) were investigated using flow visualization experiment. Additionally, heat transfer experiment was conducted under one-sided heating condition to simulate a fusion reactor environment. The results revealed that the heat flux removed by the swirling flow in the elbow piping exceeded the critical heat flux in straight piping, and a heat removal performance of up to 25 MW / m 2 was achieved.
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