An Investigation of the Vertical Bunsen Burner Test for Flammability of Plastics

Quintiere, J.G.; Downey, Brian P.; Lyon, Richard E.

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An Investigation of the Vertical Bunsen Burner Test for Flammability of Plastics

2012-02-01
By Quintiere, J.G. ; Downey, Brian P. ; Lyon, Richard E.

File Language:

English

Details

Creators:

Quintiere, J.G. ; Downey, Brian P. ; Lyon, Richard E.
Corporate Creators:

University of Maryland. Department of Fire Protection Engineering ; United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center. Fire Safety Section
Subject/TRT Terms:

Aircraft Cabins Airplanes Flammability Flammability Tests Heat Flux Heat Release Rate UL-94
Publication/ Report Number:

DOT/FAA/AR-TN11/19
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Technical Notes
Corporate Publisher:

United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center
Abstract:

A vertical Bunsen burner test for flammability of plastics (UL-94V) was studied in an attempt to relate the upward burning of plastics to their material fire properties. It was shown that the heat release parameter, the critical heat flux for piloted ignition, and the thermal response parameter account for most of the fire behavior of plastics in the test. The premixed flame of the Bunsen burner during transient ignition and the laminar diffusion flame of the burning material have nominal heat fluxes of about 60 kW/m2. The heat release rate (HRR) per unit area during burning was a significant factor in correlating UL-94V ratings. The height of the flame, which transfers heat to the burning sample, was proportional to HRR, and critical values of HRR for ignition, sustained burning, and upward flame spread in the test were theoretically estimated to be 80, 250, and 300 kW/m2, respectively.
Format:

PDF
Collection(s):

FAA William J. Hughes Technical Center for Advanced Aerospace
Main Document Checksum:

urn:sha-512:6690fa2297d0e0cad4b93cb54139e49272766d537a6fc0f1392afcebb499a7e4f5d44bdafa96d6cf433d38140c3e3e5826d7859039e48134342aae995f079040
Download URL:

https://rosap.ntl.bts.gov/view/dot/90089/dot_90089_DS1.pdf
File Type:

[PDF - 207.24 KB ]

File Language:

English

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