Heat Release Rate Requirements for Railcar Interior Finish

Luo, Charles; Kraft, Stefan; DiDomizio, Matthew; Hodges, Jonathan; Yazdani, Soroush; Lattimer, Brian Y.; Jensen Hughes

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Heat Release Rate Requirements for Railcar Interior Finish

2019-12-01
By Luo, Charles ; Kraft, Stefan ; DiDomizio, Matthew ; ...

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Creators:

Luo, Charles ; Kraft, Stefan ; DiDomizio, Matthew ; Hodges, Jonathan ; Yazdani, Soroush ; ... More +

Luo, Charles ; Kraft, Stefan ; DiDomizio, Matthew ; Hodges, Jonathan ; Yazdani, Soroush ; Lattimer, Brian Y. Less -
Corporate Creators:

Jensen Hughes
Corporate Contributors:

United States. Department of Transportation. Federal Railroad Administration. Office of Research, Development, and Technology
Subject/TRT Terms:

[+]

Fire Safety Flammability Flammability Performance Requirement Fluid Dynamics Heat Release Rate HRR Interior Finish Materials Rail Car Railroad Cars Seats Testing Validation Vehicle Interiors
Publication/ Report Number:

DOT/FRA/ORD-19/39
Resource Type:

Tech Report
Geographical Coverage:

United States
Edition:

Technical Report May 2017–September 2018
Corporate Publisher:

United States. Department of Transportation. Federal Railroad Administration. Office of Research, Development, and Technology
Abstract:

The focus of this research was to establish heat release rate (HRR) based performance requirements for intercity and commuter passenger railcar interior finish materials. A database of HRR results from passenger railcar components was compiled for developing new HRR requirements. Initiating fire exposures within a passenger railcar were quantified and compared with different initiating fires in room-corner test standards. The initiating fire of National Fire Protection Association (NFPA) 286, Standard Methods of Fire Tests for Evaluating Contribution of Wall and Ceiling Interior Finish to Room Fire Growth, was determined to be a representative exposure fire for the interior of a passenger railcar. A flammability parameter empirical model was developed to predict the occurrence of flashover due to the lining material in NFPA 286 room-corner tests. Fire Dynamics Simulator (FDS) computational fluid dynamics (CFD) model was also demonstrated to predict detailed fire growth in the NFPA 286 room and a railcar. Both small and large-scale tests were performed on seven railcar interior finish materials. The testing results along with the HRR database provided data to validate both models for use in development of HRR requirements. HRR-based flammability requirements were developed for railcar interior materials listed in “Other vehicle components” in NFPA 130, Standard for Fixed Guideway Transit and Passenger Rail Systems. Materials used in seating areas within a railcar can be evaluated using a flammability requirement of maximum average rate of heat emission (MARHE) less than 90 kW/m2.
Format:

PDF
Funding:

DTRT57-12-D-30011, Order 0035 DTFR53-15-X-00019
Collection(s):

Federal Railroad Administration
Main Document Checksum:

[+]

urn:sha256:75f07e2e710f7c4c007d0bb702d218259a8e57e2e9c056039ba1ed715f63d7b2
Download URL:

https://rosap.ntl.bts.gov/view/dot/43614/dot_43614_DS1.pdf
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Heat Release Rate Requirements for Railcar Interior Finish

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