Earticle

초록

영어

This study investigates the flow resistance and heat transfer characteristics of a fin-and-tube heat exchanger, applied to a water-cooled thermal management system designed for a cabinet-mounted high-performance computer operating aboard naval vessels. The analysis was conducted through both experimental and numerical approaches, focusing on the evaluation of heat transfer performance (j factor) and flow resistance (f factor) under varying air flow rates, while maintaining a fixed fin geometry and arrangement. Particular emphasis was placed on assessing the variation of the j factor along the total length of the heat exchanger to understand the impact of exchanger length on thermal performance. In the numerical analysis, instead of modeling the entire heat exchanger, a representative repeated unit composed of a single fin and twelve connected tubes was simulated. The outlet temperature from each tube segment was sequentially used as the inlet condition for the subsequent segment. This methodology significantly enhances computational efficiency while providing reliable predictions of progressive thermal characteristics along the flow path.

목차

Abstract
1. 서론
2. 이론적 배경
2.1 핀-튜브 열교환기의 구조 및 작동 원리
2.2 열교환기 관련 이론
3. 연구 방법
3.1 핀-튜브 열교환기 제원
3.2 단순화된 해석 모 델 및 연계 해석 방법
3.3 수치 해석 조건 설정
3.4 열교환기 성능 시험
4. 결과 및 분석
4.1 시험 결과와 비교를 통한 해석 모 델 및 연계 해석 방법 검증
4.2 열교환기 길이에 따른 열해석 결과
4.3 열교환기 길이에 따른 열교환기 성능 계수 분석
4.4 공기 유량 변화에 따른 열교환기 성능 계수 분석
5. 결론
5.1 연구 요약 및 주요 성과
References

키워드

저자

• 하성준 [ Sung-Jun Ha | Member, LIG Nex1, Research Engineer ] Corresponding Author
• 김수창 [ Su-Chang Kim | LIGNex1, Research Engineer ]
• 이영민 [ Young-Min Lee | LIGNex1, Research Engineer ]
• 전관수 [ Kwan-Soo Jeon | LIGNex1, Research Engineer ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  한국기계항공기술학회지(구 한국기계기술학회지) [Journal of the Korean Society of Mechanical and Aviation Technology ]

• 간기

  격월간

• pISSN

  1229-604X

• eISSN

  2508-3805

• 수록기간

  1999~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 550 DDC 620