Earticle

초록

영어

Radiant tubes heat exchangers are critical components that facilitate the heat transfer process to steel in an annealing furnace, and it addresses several engineering problems, such as thermal stress and mechanical failure due to long-term thermal cycling, which can significantly affect the longevity of the tubes and maintenance requirements. In this study, we used commercial software (ANSYS) to simulate the thermal stress and deformation of radiant tubes subjected to extreme thermal conditions and pressure loads. We evaluated both thermally induced deformation and creep deformation, which is a time-dependent deformation under constant stress over the long term. The results showed that uneven temperature conditions and pressure loads lead to significant deformation and potential failures. To mitigate these engineering challenges, we also tested several designs that include supporting brackets. This study provides valuable insights for designing radiant tube heat exchangers in annealing furnaces to extend their lifespan and ensure system safety.

목차

ABSTRACT
1. 서론
2. 수치해석 준비
2.1 형상 및 경계 조건
2.2 Creep model (크리프 모델)
2.3 격자 생성 및 대조군 형상
3. 결과 및 분석
3.1 기본형상 결과 분석
3.2 대조군 결과 분석
4. 결론
References

키워드

저자

• 최락준 [ Rak-Jun Choi | Kyungpook National University ]
• 김필 [ Phil Kim | Pusan National University ]
• 김량균 [ Ryang-Gyoon Kim | Research Instiute of Science Technology, Pohang ]
• [ Member, Kyungpook National University, Assistant Professor ] Corresponding Author

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