METHOD OF PRESSURIZATION OF TANK WITH HIGH BOILING FUEL OF POWER PLANT

摘要

A method of pressurization of a tank with high boiling fuel of a power plant of a launcher vehicle consists in that at the stage of pre-start pressurization into the free volume of tank helium is introduced, and at the stage of flight pressurization the temperature of helium before supply into the tank is set below the fuel temperature. At the stage of pre-start pressurization into the tank helium is introduced from the cylinders of flight pressurization to a value of pressure, which is lower than needed to start the engine, then the introduction of helium into the tank is stopped followed by holding, during which the pressure of helium in the tank is increased to the desired value for engine startup, while the filling of cylinders with helium is continued, and at the stage of engine startup and flight of the launcher vehicle the helium is introduced into the tank, while into the tank the second gas is supplied, whose temperature is adjusted before supply into the tank above the fuel temperature, thus the required pressure of the mixture of gases in the tank is maintained by varying the flow rate of helium, which at all stages is introduced in the free volume of a tank on its upper bottom it equidistantly to the latter.