Smoke ventilation in operational fire fighting

Part 2. Multi-storey buildings

Jukka Vaari, Jukka Hietaniemi

Research output: Book/ReportReportProfessional

1 Citation (Scopus)

Abstract

The effect of Positive Pressure Ventilation (PPV) on compartment fires in a 1:4 scale four-storey building was investigated experimentally. The main goal in the experiments was to find out the optimum ventilation path and ventilation rate as a function of the elevation of the fire room. Also, the smoke movement in the staircase was studied to evaluate issues related to evacuation of the building. The main quantities measured were the total rate of heat release (RHR) and the vertical temperature distributions in the fire room and rooms connected to it, as well as in the staircase. When the PPV was arranged in accordance with the generally adopted practices in fire-fighting, the benefits of PPV could be well reproduced: the visibility along the path of the fire-fighter attack was improved, and the gas temperatures were lowered. However, the RHR of the compartment fire was increased by the application of PPV. An implication of this is that there exists an optimum PPV rate which sufficiently improves the operating conditions of the fire-fighters while keeping the thermal load on the structures in the fire room to a tolerable level.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages65
ISBN (Electronic)951-38-5580-5
ISBN (Print)951-38-5579-1
Publication statusPublished - 2000
MoE publication typeD4 Published development or research report or study

Publication series

NameVTT Publications
PublisherVTT
No.419
ISSN (Print)1235-0621
ISSN (Electronic)1455-0849

Fingerprint

Smoke
Ventilation
Fires
Thermal load
Visibility
Temperature distribution
Gases

Keywords

  • fire fighting
  • fire safety
  • fire prevention
  • multi-storey buildings
  • smoke abatement
  • smoke vents
  • Positive Pressure Ventilation
  • staircase

Cite this

Vaari, J., & Hietaniemi, J. (2000). Smoke ventilation in operational fire fighting: Part 2. Multi-storey buildings. Espoo: VTT Technical Research Centre of Finland. VTT Publications, No. 419
Vaari, Jukka ; Hietaniemi, Jukka. / Smoke ventilation in operational fire fighting : Part 2. Multi-storey buildings. Espoo : VTT Technical Research Centre of Finland, 2000. 65 p. (VTT Publications; No. 419).
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Vaari, J & Hietaniemi, J 2000, Smoke ventilation in operational fire fighting: Part 2. Multi-storey buildings. VTT Publications, no. 419, VTT Technical Research Centre of Finland, Espoo.

Smoke ventilation in operational fire fighting : Part 2. Multi-storey buildings. / Vaari, Jukka; Hietaniemi, Jukka.

Espoo : VTT Technical Research Centre of Finland, 2000. 65 p. (VTT Publications; No. 419).

Research output: Book/ReportReportProfessional

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Vaari J, Hietaniemi J. Smoke ventilation in operational fire fighting: Part 2. Multi-storey buildings. Espoo: VTT Technical Research Centre of Finland, 2000. 65 p. (VTT Publications; No. 419).