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

Korean Industrial Hygiene Association (한국산업보건학회)
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Numerical Study on the Ventilation Performance in the Boiler Building with and without Roof Openings

루프 환기구에 따른 보일러빌딩 내부 환기성능에 관한 수치적 연구

  • Choi, Hoon Ki (School of Mechanical Engineering, Changwon National University) ;
  • Yoo, Geun Jong (School of Mechanical Engineering, Changwon National University) ;
  • Lee, Sang Heon (Graduate School, Changwon National University)
  • Received : 2016.08.25
  • Accepted : 2016.09.14
  • Published : 2016.09.30
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Abstract

Objectives: The objective of this paper is to find flow and heat transfer characteristics numerically in boiler buildings for three different ventilation window configurations. Methods: Turbulent natural convection flow in boiler buildings with a constant heating wall temperature was analyzed numerically. Governing equations were solved with standard finite-volume method using the SIMPLE algorithm. Conclusions: Flow and heat transfer characteristics are found for three different ventilation types. In the lower area under furnace, velocity and temperature distributions show similar patterns among the three different ventilation types. In the upper area over furnace, however, air flow is well mixed with lower peak temperatures for types B and C, which have roof ventilation windows, compared to type A which has side wall louvers only. Also, type B, with a single large roof window, shows better ventilation effect than does type C with its distribution roof windows.

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References

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