Abstract
Despite the fact that LPG is used in a large number of cars, tests have not yet been carried out on whether parked cars in enclosed garages are a greater threat than petrol cars. The problem of LPG-powered vehicles in enclosed car parks applies to both public and industrial areas.
This paper describes real scale tests, which demonstrate conditions that can occur in a garage in the event of LPG release from a car installation. The validation of FDS code (NIST) for using in the case of modelling LPG release and dispersion in different situations is also described. Over the course of the tests, a series of six real scale LPG spillage experiments were performed to study emission time and cloud formation according to the leak size in the car installation. As a tested scenario, the release of 0.17 L of LPG in liquid phase, from the pipe connecting the tank and the engine, was used. On the basis of these measurements results, the distribution of LPG in the garage was obtained. The test results were used to create the optimal CFD model of LPG outflow and validation of FDS code against simulations of LPG gas release and dispersion.
