한국전산유체공학회지 (Journal of computational fluids engineering)

한국전산유체공학회 (Korean Society of Computational Fluids Engineering)
권호 표지

엔진실 차폐 시스템의 냉각성능 개선을 위한 수치적 연구

NUMERICAL STUDY FOR COOLING CAPACITY IMPROVEMENT OF ENGINE ROOM ENCLOSURE SYSTEM

  • 배이석 (창원대학교 대학원 기계설계공학과) ;
  • 유근종 (창원대학교 기계설계공학과) ;
  • 최훈기 (창원대학교 기계설계공학과)
  • 발행 : 2009.06.30
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초록

In engine room, proper enclosure system is preferable for reducing noise level but the enclosure system in the engine room causes bad influence on cooling performance due to poor ventilation. Cooling efficiency of the enclosure system can be improved by varying fan speed and proper flow path for ventilation. In this study, numerical analysis is performed to assess cooling effect of the enclosure system using finite volume method. The RNG k-$\varepsilon$ model is adopted for turbulence model along with heat exchanger model and porous media model for heat exchanger analysis, and moving reference frame model for rotational fan. Verification result shows reasonable agreement with experimental data. Analysis results show direct effect of velocity and temperature distribution on cooling ability in the enclosure system. Enclosure system of case B shows high heat transfer coefficient and has the smallest area ratio of opened flow passages which is good for noise level reduction.

키워드

참고문헌

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