Effects of Variations in Thermal Properties on the Performance of Flame Resistant Fabrics for Flash Fires

Author:

Torvi David A.1,Dale J. Douglas2

Affiliation:

1. Fire Risk Management Program, Institute for Research in Construction, National Research Council of Canada, Ottawa, Ontario, KIA 0R6, Canada

2. Department of Mechanical Engineering, University of Alberta, Edmonton, Alberta. T6G 2G8, Canada

Abstract

A numerical model of heat transfer in thermal protective fabrics under high heat flux conditions is used to determine the effects of varying individual thermal properties and boundary conditions on the predicted performance of single layer fabrics during bench top tests simulating flash fire conditions. The fabric thermal properties with the largest effects are thermal conductivity and specific heat. The boundary conditions, i.e., flame temperature and emissivity and convective heat transfer coefficient, have an even larger effect on predicted bench top test results. The results of the parametric studies are described in this paper, along with a discussion about how these results may be used to design thermal protective fabrics.

Publisher

SAGE Publications

Subject

Polymers and Plastics,Chemical Engineering (miscellaneous)

Reference9 articles.

1. Thermal Insulative Performance of Single-Layer and Multiple-Layer Fabric Assemblies

2. Fire fighter's protective clothing and thermal environments of structural fire fighting

3. Effect of Moisture on the Thermal Protective Performance of Heat-Resistant Fabrics

4. Morse, H.L., Thompson, J.G., and Clark, K.J., Analysis of the Thermal Response of Protective Fabrics, Acurex Corporation, Aerotherm Division Report AFML-TR-73-17, 1973.

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