대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)

  • 제26권4호
  • /
  • Pages.594-603
  • /
  • 2002
  • /
  • 1226-4881(pISSN)
  • /
  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
권호 표지
DOI QR코드

DOI QR Code

극저습 공조실의 환기성능에 대한 수치적 모사

Numerical Simulation of Ventilation Performance in a Dry Room

  • 최석호 (한양대학교 대학원 기계공학과) ;
  • 이관수 (한양대학교 기계공학부)
  • Choe, Seok-Ho (Dept. of Mechanical Engineering, Hanyang University) ;
  • Lee, Gwan-Su (Dept. of Mechanical Engineering, Hanyang University)
  • 발행 : 2002.04.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The characteristics of moisture ventilation in a dry room were studied numerically The effect of three important parameters: position of outlets, aspect ratio($\beta$) of horizontal plane and air exchange rate(N), was analyzed by using the scales of ventilation efficiency. The ventilation performance was evaluated by varying the aspect ratio and air exchange rate in the four types of outlet position. It was shown that the ventilation performance was improved by decreasing the aspect ratio in the longitudinal arrangement of outlet. The highest ventilation performance was determined when $\beta$ was 4 in the transverse arrangement of outlet. Regardless of the aspect ratio, the ceiling arrangement of outlet played more dominant effect on the ventilation efficiency than the floor arrangement. In every type and aspect ratio, the increase of air exchange rate to improve ventilation performance was appropriate up to N=60 /h.

키워드

참고문헌

  1. Lee, K. S., Lim, K. O., Ahn, K. H. and Jung, Y. S., 2001, 'Numerical Analysis of Moisture Ventilation in a Lithium Ion Battery Manufacturing Dry Room,' Drying Technology, Vol. 19, No. 3, pp. 455-470 https://doi.org/10.1081/DRT-100103928
  2. Kiranoudis, C. T., Karathanos, V. T. and Markatos, N. C., 1999, 'Computational Fluid Dynamics of Industrial Batch Dryers of Fruits,' Drying Technology, Vol. 17, No. 1-2, pp. 1-25 https://doi.org/10.1080/07373939908917516
  3. Murakami, S. and Kato, S., 1988, 'Numerical Study on Diffusion Field as Affected by Arrangement of Supply and Exhaust Openings in Conventional Flow Type Clean Room,' ASHRAE Transactions, Vol. 95, Part 2, pp. 113-127
  4. Kato, S. and Murakami, S., 1992, 'Numerical Study on Diffusion in a Room with a Locally Balanced Supply-Exhaust Airflow Rate System,' ASHRAE Transactions, Vol. 98, Part 1, pp. 218-238
  5. Peng, S. H., Holmberg, S. and Davidson, L., 1997, 'On the Assessment of Ventilation Performance with the Aid of Numerical Simulations,' Building and Environment, Vol. 32, No. 6, pp. 497-508 https://doi.org/10.1016/S0360-1323(97)00023-1
  6. Kato, S. and Murakami, S., 1988, 'New Ventilation Efficiency Scales Based on Spatial Distribution of Contaminant Concentration Aided by Numerical Simulation,' ASHRAE Transactions, Vol. 94, Part 2, pp. 309-330
  7. Harris, N. C., 1983, Modern Air Conditioning Practice, 3th ed., McGraw-Hill, New York
  8. Patankar, S. V., 1980, Numerical Heat Transfer and Fluid Flow, Taylor & Francis
  9. Sateri, J. O., Seppanen, O. A. and Majanen, A. T., 1991, 'Ventilation Effectiveness in Residential Buildings with Various Ventilation Systems,' ASHRAE Transactions, Vol. 97, Part 2, pp. 1102-1111
  10. Davidson, L. and Olsson, E., 1987, 'Calculation of Age and Local Purging Flow Rate in Rooms,' Building and Environment, Vol. 22, No. 2, pp. 111-127 https://doi.org/10.1016/0360-1323(87)90031-X
  11. Lage, J. L., Bejan, A. and Anderson, R., 1991, 'Efficiency of Transient Contaminant Removal from a Slot Ventilated Enclosure,' Int. J. Heat Mass Transfer, Vol. 34, No. 10, pp. 2603-2615 https://doi.org/10.1016/0017-9310(91)90100-S