Journal of Korean Society of Occupational and Environmental Hygiene (한국산업보건학회지)

Korean Industrial Hygiene Association (한국산업보건학회)
권호 표지

Numerical Study on the Ventilation Effect in the Boiler Building

보일러빌딩 내부 환기현상에 관한 수치적 연구

  • Kim, Chul Hwan (Dept. of Mechanical Design and Manufacturing Engineering, Changwon National University) ;
  • Yoo, Geun Jong (Dept. of Mechanical Design and Manufacturing Engineering, Changwon National University) ;
  • Choi, Hoon Ki (Dept. of Mechanical Design and Manufacturing Engineering, Changwon National University)
  • 김철환 (창원대학교 기계설계공학과) ;
  • 유근종 (창원대학교 기계설계공학과) ;
  • 최훈기 (창원대학교 기계설계공학과)
  • Received : 2005.09.30
  • Accepted : 2005.12.24
  • Published : 2005.12.30
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Abstract

Ventilation effect is analyzed for boiler building with multiple heat sources. Air flow inside the boiler building is characterized as turbulent mixed convection. Analysis methodology is set up with two different $k-{\varepsilon}$ type models (standard $k-{\varepsilon}$, RNG $k-{\varepsilon}$). Two different cases with high and low outside temperature are analyzed. In case of high outside temperature condition, mixed convection is well realized inside the boiler building. With different upper louver opening rate, air flow is also well established and proper opening rate is found to meet design limit in case of low outside temperature condition. Difference of analysis results for two different turbulence models are not significant. Therefore, analysis methodology with simple $k-{\varepsilon}$ turbulence model is found to be reliable for the boiler building ventilation analysis. However, more simplified geometrical model is desired to expand its application.

Keywords

Acknowledgement

Supported by : 창원대학교

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