Understanding vented gas explosions

Risto Lautkaski

Research output: Book/ReportReportProfessional

3 Citations (Scopus)

Abstract

The report is an introduction to vented gas explosions for nonspecialists, particularly designers of plants for flammable gases and liquids. The phenomena leading to pressure generation in vented gas explosions in empty and congested rooms are reviewed. The four peak model of vented gas explosions is presented with simple methods to predict the values of the individual peaks. Experimental data on the external explosion of dust and gas explosions is discussed. The empirical equation by Wirkner-Bott et al. relating the internal and external peak pressures in vented dust explosions is shown to be valid for gas explosion tests in 30 m3 and 550 m3 chambers. However, the difficulty of predicting the internal peak pressure in large chambers remains. Methods of explosion relief panel design and principles of vent and equipment layout to reduce explosion overpressures are reviewed.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages129
ISBN (Print)951-38-5087-0
Publication statusPublished - 1997
MoE publication typeNot Eligible

Publication series

NameVTT Tiedotteita - Meddelanden - Research Notes
PublisherVTT
No.1812
ISSN (Print)1235-0605
ISSN (Electronic)1455-0865

Fingerprint

gas explosions
explosions
dust
chambers
flammable gases
overpressure
vents
layouts
rooms
liquids

Keywords

  • gases
  • explosions
  • vented explosions
  • flammable gases
  • flammable liquids
  • industrial plants
  • dust explosions
  • designers
  • combustion
  • turbulence
  • blast effects
  • pressure
  • vents
  • models
  • mathematical models
  • methods, predictions
  • liquefied petroleum gases

Cite this

Lautkaski, R. (1997). Understanding vented gas explosions. Espoo: VTT Technical Research Centre of Finland. VTT Tiedotteita - Meddelanden - Research Notes, No. 1812
Lautkaski, Risto. / Understanding vented gas explosions. Espoo : VTT Technical Research Centre of Finland, 1997. 129 p. (VTT Tiedotteita - Meddelanden - Research Notes; No. 1812).
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Lautkaski, R 1997, Understanding vented gas explosions. VTT Tiedotteita - Meddelanden - Research Notes, no. 1812, VTT Technical Research Centre of Finland, Espoo.

Understanding vented gas explosions. / Lautkaski, Risto.

Espoo : VTT Technical Research Centre of Finland, 1997. 129 p. (VTT Tiedotteita - Meddelanden - Research Notes; No. 1812).

Research output: Book/ReportReportProfessional

TY - BOOK

T1 - Understanding vented gas explosions

AU - Lautkaski, Risto

PY - 1997

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N2 - The report is an introduction to vented gas explosions for nonspecialists, particularly designers of plants for flammable gases and liquids. The phenomena leading to pressure generation in vented gas explosions in empty and congested rooms are reviewed. The four peak model of vented gas explosions is presented with simple methods to predict the values of the individual peaks. Experimental data on the external explosion of dust and gas explosions is discussed. The empirical equation by Wirkner-Bott et al. relating the internal and external peak pressures in vented dust explosions is shown to be valid for gas explosion tests in 30 m3 and 550 m3 chambers. However, the difficulty of predicting the internal peak pressure in large chambers remains. Methods of explosion relief panel design and principles of vent and equipment layout to reduce explosion overpressures are reviewed.

AB - The report is an introduction to vented gas explosions for nonspecialists, particularly designers of plants for flammable gases and liquids. The phenomena leading to pressure generation in vented gas explosions in empty and congested rooms are reviewed. The four peak model of vented gas explosions is presented with simple methods to predict the values of the individual peaks. Experimental data on the external explosion of dust and gas explosions is discussed. The empirical equation by Wirkner-Bott et al. relating the internal and external peak pressures in vented dust explosions is shown to be valid for gas explosion tests in 30 m3 and 550 m3 chambers. However, the difficulty of predicting the internal peak pressure in large chambers remains. Methods of explosion relief panel design and principles of vent and equipment layout to reduce explosion overpressures are reviewed.

KW - gases

KW - explosions

KW - vented explosions

KW - flammable gases

KW - flammable liquids

KW - industrial plants

KW - dust explosions

KW - designers

KW - combustion

KW - turbulence

KW - blast effects

KW - pressure

KW - vents

KW - models

KW - mathematical models

KW - methods, predictions

KW - liquefied petroleum gases

M3 - Report

SN - 951-38-5087-0

T3 - VTT Tiedotteita - Meddelanden - Research Notes

BT - Understanding vented gas explosions

PB - VTT Technical Research Centre of Finland

CY - Espoo

ER -

Lautkaski R. Understanding vented gas explosions. Espoo: VTT Technical Research Centre of Finland, 1997. 129 p. (VTT Tiedotteita - Meddelanden - Research Notes; No. 1812).