A study on the influence of climatic conditions on the heating of an outer wall of a liquified hydrocarbon gas tank

Introduction. The article contains a theoretical study on the influence of climatic conditions in various regions of the Russian Federation on the heating of a side wall of a liquified hydrocarbon gas (LHG) tank if the firе runs through the whole vehicle, located at a gas station. Objectives of the study: analysis of the fire safety legislative framework applicable to gas station design; analysis of sources of domestic and foreign experimental studies on the fire impact of flames on an LHG tank; numerical simulation of the vehicle combustion in cold and warm seasons, taking into account the highest wind velocity in the Russian Federation; numerical simulations, conducted for a warm season to identify the critical surface temperature of a side wall of an LHG tank, and the design wind velocity corresponding to the air temperature in a Russian region. Materials and methods. The method of mathematical statistics is used to process maximum values of the air temperature and wind velocity for each Russian region and obtain the empirical values of the wind velocity and air temperature in the Russian regions. Calculations were made using the method of mathematical modelling of fire in warm periods to identify the critical surface temperature of a side wall of an LHG tank and the design wind velocity corresponding to the air temperature in the regions of Russia. Results. A dependence between the wind velocity and the air temperature in the Russian regions, as well as a dependence between the critical surface temperature of a side wall of an LHG tank and climatic conditions of the Russian regions was identified. Conclusions. The results, obtained by the researches, can be used to design the fire separation distance between the site designated for a fuel tanker truck (the parking lot for a vehicle before its fueling), an LHG tank and a gas station.