A validated three-dimensional mathematical model was used to examine the extent of flammable plumes resulting from both large and small CNG leak scenarios inside a typical transit maintenance and storage facility ventilated at a rate of five air changes per hour. The leak rates used were based on an engineering and experimental analysis of actual CNG bus fuel system components.The results showed that both large and small CNG leaks produced flammable plumes, such plumes extended from a half a bus length to several bus lengths away from the leak source, and the plume from a large leak formed a layer along the ceiling before being dispersed by building ventilation.
Extent of Indoor Flammable Plumes Resulting from CNG Bus Fuel System Leaks
Sae Technical Papers
International Truck & Bus Meeting & Exposition ; 1992
1992-11-01
Conference paper
English
Extent of indoor flammable plumes resulting from CNG bus fuel system leaks
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