COMPUTER MODELING OF FUEL TANK SAFETY VENTING IN FULL SCALE FLAMETESTS

The Bureau of Motor Carrier Safety (BMCS 393.67) requires that vehicular fuel tanks be equipped with venting systems enabling them to pass an enveloping flame test without explosive rupture. This paper presents analytical models of the BMCS specified flame test and also an uncontrolled fire test via computer simulation. Results of experimentally performed flame tests of both types are presented. Comparisons are made with the simulated results that demonstrate consistency between actual tests and analytical predictions. Logical performance objectives of safety venting devices are outlined. Using the performance objectives and the simulations, the spectrum of appropriate application (i.e. tank volume, tank shape, and fuel type) of safety venting devices is parametrically presented.