사용후핵연료 저장 캐니스터 구조물인 바스켓-디스크간간극의 매질 종류 및 크기에 따른 열전달 연구 (A STUDY ON HEAT TRANSFER OF GAP MEDIA AND SIZE BETWEEN BASKET AND DISC STRUCTURES IN SPENT FUEL STORAGE CANISTER)

서지정보

· 발행기관 : 한국전산유체공학회
· 수록지 정보 : 한국전산유체공학회지 / 23권 / 3호 / 47 ~ 52페이지
· 저자명 : 강경욱, 육대식, 차정훈

초록

This study investigates numerically the heat transfer effects on gap media and size between the basket and disc in the spent fuel dry storage canister using Fluent 14.5 code. For helium gas, helium solid and stainless steel in media, maximum temperatures of fuel region were measured by varying the heights and width of gap, and the heat transfer phenomena in the gap were described in detail. It is found that the maximum temperature of fuel region is kept low in case the width of the gap is narrowed at the fixed heights of disc. Setting the medium to helium solid in the range of 2 to 10 mm leads to the similar results for the helium gas regardless of the disc heights, and the less time is required for convergence. From these results, it is considered that the medium of the gap may be applied as a helium solid rather than the helium gas in order to increase the efficiency of thermal analysis in terms of heat removal. The results of this study will be used as the theoretical basis for the thermal analysis methodology of the spent fuel dry storage system.

영어초록

This study investigates numerically the heat transfer effects on gap media and size between the basket and disc in the spent fuel dry storage canister using Fluent 14.5 code. For helium gas, helium solid and stainless steel in media, maximum temperatures of fuel region were measured by varying the heights and width of gap, and the heat transfer phenomena in the gap were described in detail. It is found that the maximum temperature of fuel region is kept low in case the width of the gap is narrowed at the fixed heights of disc. Setting the medium to helium solid in the range of 2 to 10 mm leads to the similar results for the helium gas regardless of the disc heights, and the less time is required for convergence. From these results, it is considered that the medium of the gap may be applied as a helium solid rather than the helium gas in order to increase the efficiency of thermal analysis in terms of heat removal. The results of this study will be used as the theoretical basis for the thermal analysis methodology of the spent fuel dry storage system.

참고자료

· 없음