Full-scale experimental studies on mechanical smoke exhaust efficiency in an underground corridor

L. H. Hu, Y. Z. Li, R. Huo, L. Yi, Wan Ki Chow

Research output: Journal article publicationJournal articleAcademic researchpeer-review

29 Citations (Scopus)


Full-scale burning tests were conducted in a full-scale underground long corridor with beamed ceiling and smooth ceiling. The influence of air-supply opening position on the smoke exhaust efficiency was studied. The operation time of the smoke exhaust fan was also discussed to obtain a better smoke exhaust. Results showed that the smoke exhaust would be more efficient when air-supply openings were some distance away from the smoke exhaust openings. When the air-supply opening was near the smoke exhaust opening, even with larger smoke exhaust rate, it still gave poor smoke control results. Two comparing tests on the effects of operation time indicated that it would give poor smoke control ability when the smoke exhaust system operated too early. Finally, some future research topics were also discussed in this paper.
Original languageEnglish
Pages (from-to)1622-1630
Number of pages9
JournalBuilding and Environment
Issue number12
Publication statusPublished - 1 Dec 2006


  • Air supply
  • Corridor
  • Smoke exhaust efficiency
  • Smoke front

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Environmental Engineering
  • Geography, Planning and Development


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