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Removal of contaminant generated by a discrete source in a slot ventilated enclosure

Publication ,  Journal Article
Lage, JL; Bejan, A; Anderson, R
Published in: International Journal of Heat and Mass Transfer
January 1, 1992

This paper reports the results of a numerical study of the time-dependent removal of contaminant from a two-dimensional enclosure with one inlet and one outlet. The contaminant is generated beginning with the time t = 0 by a concentrated source located inside the enclosure. The contaminant is removed by the through flow established between the inlet and outlet ports. The flows studied cover the laminar and turbulent regimes represented by 30 ≤ Re ≤ 3000, where Re is the Reynolds number based on the inlet width and mean velocity. The effectiveness of the contaminant removal scheme is documented in terms of the removal efficiency ηr, the volume-averaged concentration of contaminant C̄, and the critical (clean up) time tc. The effects of Re, ventilation jet orientation and source location are reported. It is shown that the movement and distribution of contaminant is complex and depends strongly on the source location. It is also shown how the relative positioning of the ports and the source location influence the contaminant removal process. The optimal inlet/outlet configuration associated with each position of the concentrated source of contaminant is reported. Slower ventilation schemes can lead to lower contaminant levels when a short contaminant removal time is not a major requirement. © 1992.

Duke Scholars

Published In

International Journal of Heat and Mass Transfer

DOI

ISSN

0017-9310

Publication Date

January 1, 1992

Volume

35

Issue

5

Start / End Page

1169 / 1180

Related Subject Headings

  • Mechanical Engineering & Transports
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences
 

Citation

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Lage, J. L., Bejan, A., & Anderson, R. (1992). Removal of contaminant generated by a discrete source in a slot ventilated enclosure. International Journal of Heat and Mass Transfer, 35(5), 1169–1180. https://doi.org/10.1016/0017-9310(92)90177-T
Lage, J. L., A. Bejan, and R. Anderson. “Removal of contaminant generated by a discrete source in a slot ventilated enclosure.” International Journal of Heat and Mass Transfer 35, no. 5 (January 1, 1992): 1169–80. https://doi.org/10.1016/0017-9310(92)90177-T.
Lage JL, Bejan A, Anderson R. Removal of contaminant generated by a discrete source in a slot ventilated enclosure. International Journal of Heat and Mass Transfer. 1992 Jan 1;35(5):1169–80.
Lage, J. L., et al. “Removal of contaminant generated by a discrete source in a slot ventilated enclosure.” International Journal of Heat and Mass Transfer, vol. 35, no. 5, Jan. 1992, pp. 1169–80. Scopus, doi:10.1016/0017-9310(92)90177-T.
Lage JL, Bejan A, Anderson R. Removal of contaminant generated by a discrete source in a slot ventilated enclosure. International Journal of Heat and Mass Transfer. 1992 Jan 1;35(5):1169–1180.
Journal cover image

Published In

International Journal of Heat and Mass Transfer

DOI

ISSN

0017-9310

Publication Date

January 1, 1992

Volume

35

Issue

5

Start / End Page

1169 / 1180

Related Subject Headings

  • Mechanical Engineering & Transports
  • 51 Physical sciences
  • 49 Mathematical sciences
  • 40 Engineering
  • 09 Engineering
  • 02 Physical Sciences
  • 01 Mathematical Sciences