FIELD: aviation.
SUBSTANCE: method for modelling the process of gasification of the liquid component of rocket fuel in the tank of the carrier-rocket, based on the supply of heat to the experimental model set (EMS), carrying out measurements of temperature, pressure at various points of EMS, discharge of vapour-gas mixture (VGM) through the drain line (DL), while the charging of the boost gas and the conductive supply of heat to the EMS are carried out, the amount of which is determined from the condition of equality of the partial pressures of the pressurant gas and liquid vapour in the EM and the fuel tank, and the total pressure corresponds to the beginning of the discharge of the VGM in the DL, the diameter of the DL is determined from the condition for resetting the preset excess pressure for the same time as in the real tank. Actuation pressure of a draining valve is selected first from a predetermined interval, the lower limit of which is the minimum boost pressure in the tank, and the upper one is the maximum pressure at which the strength of the design of the EMS remains, determine the range of parameters of the gasification process, under which condensate appears on the inner surface of the DL and crystallization, perform additional heat supply to the DL to prevent its freezing. It is considered the device for the realization of the method, which includes the EMS in the form of a model tank containing a tray for liquid, a temperature sensor, a pressure sensor, an inlet nozzle, DL, a drain valve, and a gas analyzer, while heating elements for liquid and DL are introduced in the EMS, an equipment for recording condensate and its crystallization is installed in the DL, and EMS and DL are made of a material similar to the material of the fuel tank of the carrier rocket under investigation.
EFFECT: detection of the conditions of condensate in the drainage line with subsequent crystallization during refuelling of the launch vehicle with cryogenic components of fuel or parking in the primed state at the start with the thermal loading of the fuel tank from the environment.
2 cl, 1 dwg
