CFD Analysis of Natural Convection Flow Characteristics of Various Gases in the Spent Fuel Dry Storage System
- Authors
- 신도영; 정의주; 전규동; 김성중
- Issue Date
- Aug-2016
- Publisher
- 한국유체기계학회
- Keywords
- Backfill Gas(충전기체); CFD Analysis(전산유체역학 분석); Dry Storage System(건식저장시스템); Natural Convection (자연대류); Spent Fuel(사용후핵연료
- Citation
- 한국유체기계학회 논문집, v.19, no.4, pp.19 - 28
- Indexed
- KCI
- Journal Title
- 한국유체기계학회 논문집
- Volume
- 19
- Number
- 4
- Start Page
- 19
- End Page
- 28
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/3230
- DOI
- 10.5293/kfma.2016.19.4.019
- ISSN
- 2287-9706
- Abstract
- Objective of this study is to compare the inherent characteristics of natural convection flow inside the canister of spent fuel dry storage system with different backfill gases by utilizing computational fluid dynamics (CFD) code. Four working fluids were selected for comparison study. Helium currently used backfill gas for canister, air, nitrogen, and argon are frequently used as coolant in many heat transfer applications. The results indicate that helium has very distinct conductive behavior and show very weak natural convective flow compared to the others. Argon showed the strongest natural convective flow but also the worst coolability. Air and nitrogen showed similar characteristics to each other. However, due to difference in Prandtl number, nitrogen showed more effective natural convective flow. These results suggest that experimental validation for the nitrogen is needed to investigate the potential coolability other than currently commercially used helium.
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