Technical Reports

Description of Computer Program for Calculation of Temperatures, Pressures, and Liquid Levels of Tank Cars Engulfed in Fires: Volume II, Description of Analytical Procedure

  • 01
  • Feb
  • 1984
AUTHOR: Federal Railroad Administration
OFFICE: RPD
SUBOFFICE: RPD-30
REPORT NUMBER: DOT/FRA/ORD-84/08.II
SUBJECT: Hazardous Materials
KEYWORDS: tank cars; hazardous materials; tank car isulation; safety relief valves
ABSTRACT: This report describes work that has been carried out under Federal Railroad Administration Contract No. DTFR53-81-C-00016, Task Order VC-4, entitled "Temperatures, Pressures and Liquid Leve1 s of Tank Cars Engulfed in Fires". The objective of this task order was the further development and utilization of a procedure for calculating the fire effects on a tank car containing certain hazardous materials. This report describes the analytical procedure and the computer program which was used to analyze the effects of safety relief valve flow capacities and thermal shield conductances on the vulnerability of cars containing liquids and liquified gases in the pool fire environment (complete fire engulfment). Results from the use of the program to calculate the effects on cars containing ethylene oxide and propane are described in Ref. 1. Results from the use of the program to calculate the effects on cars containing propylene, 1,3-butadiene, vinyl chloride, monomethylamine or propylene oxide are described in Ref. 2.

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