Experimental Flammability Limits and Associated Theoretical Flame Temperatures as a Tool for Predicting the Temperature Dependence of These Limits

Details

• Personal Author:
  Zlochower, Isaac A.
• Description:
  Abstract: The utility and limitations of adiabatic flame temperature calculations and minimum mixture energies in predicting the temperature dependence of flammability limits are explored. The limiting flame temperatures at constant pressure (1 bar) are calculated using a standard widely-used thermodynamic computer program. The computation is based on the calculated limiting flame temperature value at the reference initial temperature and the experimental limit concentration. The values recently determined in large chambers for the lower and upper flammability limits of a variety of simple organic and inorganic gases (methane, ethylene, dimethy lether, and carbon monoxide) are used as the basis for the predictions of the limiting flame temperature concept. Such thermodynamic calculations are compared with more traditional ones based on a limiting mixture energy and a constant average heat capacity of the reactant mixture. The advantages and limitations of the methods are discussed in this paper. [Description provided by NIOSH]
• Subjects:
  Mining Occupational Health Safety Ventilation
• Keywords:
  Author Keywords: Flammable Limits Combustibility Combustible-materials Computer-models Flammable-gases Flammable-liquids Fuels Heat-regulation Ignition-systems Inorganic-compounds Limit Flame Temperature Mathematical-models Mining-industry Organic-compounds Reaction-rates Temperature-control Temperature-effects Temperature-regulation Temperature Dependence Thermodynamic Calculation Thermodynamics Thermoregulation

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• Series:
  Mining Publications
• ISSN:
  0950-4230
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  OSHA Region 3 ; Pennsylvania
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Division:
  OMSHR - Office of Mine Safety and Health Research
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Volume:
  25
• Issue:
  3
• NIOSHTIC Number:
  nn:20040307
• Citation:
  J Loss Prev Process Ind 2012 May; 25(3):555-560
• Contact Point Address:
  Isaac A. Zlochower, Office of Mine Safety and Health Research, National Institute for Occupational Safety and Health, Pittsburgh, PA, USA
• Email:
  iaz0@cdc.gov
• Federal Fiscal Year:
  2012
• Peer Reviewed:
  True
• Source Full Name:
  Journal of Loss Prevention in the Process Industries
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:446691e453d8f1210610944e601e0db8f91eba94abfe66000286edaeb5291dc93e6a5c19496294938b66cd741dc3b7da7f624d8ecae359cd94d4e5a34830a2da
• Download URL:
  https://stacks.cdc.gov/view/cdc/227407/cdc_227407_DS1.pdf
• File Type:
  [PDF - 719.86 KB ]