METHOD FOR DETERMINING THE BORDER OF THE BEGINNING OF THE ZONE OF SATURATION WITH ELECTROSTATIC FIELDS WITH A SYSTEM OF ELECTRODES OF THE "NEEDLE-NEEDLE" TYPE IN A CLOSED VOLUME IN THE ENVIRONMENT OF LIQUID HYDROCARBON FUELS (COOLERS) Russian patent published in 2022 - IPC G01R29/12 G01N21/45 

FIELD: electrostatic fields.

SUBSTANCE: invention relates to the field of research of electrostatic fields in various environments and conditions, in particular in any liquid hydrocarbon fuels (coolers). Based on the results of experimental studies, a new probeless method has been developed for determining the boundary of the beginning of the saturation zone with electrostatic fields in liquid hydrocarbon fuels (coolers) located in a closed volume of an experimental bomb with visualization windows, under conditions of natural convection, at various temperatures, at subcritical, critical and supercritical pressures. , when high-voltage electrostatic voltages are applied in a constant mode to the donating needle in the system of electrodes of the “needle-needle” type located inside the experimental bomb, without the use of any sensors or probes by creating a reference experimental database for visualizing the electric wind using the Toepler optical setup , necessary for comparison with current values ​​and quick determination in terrestrial and space conditions of the values ​​of the supplied high-voltage electrostatic voltages, which are boundary, i.e. are located on the border of the beginning of the zone of saturation with electrostatic fields. In the course of visualization of the electric wind under specific thermodynamic conditions of liquid hydrocarbon fuel (cooler) in terms of pressure and temperature, at specific interelectrode distances of coaxial working needles and specific high-voltage electrostatic voltages supplied in a constant mode, the height of the resulting hydraulic torch is measured. The actual dimensions of the hydraulic torch, which are formed inside the experimental bomb, are determined by scaling; the main (basic) size when scaling is taken to be the known real diameter of the coaxial working needles, measured before the start of work during the assembly of the working section. With the real value of the constant maximum height of the hydraulic flame Н_p, obtained at a specific interelectrode distance, it is necessary to enter the experimental reference graph U=f(Н_p), created earlier at the same specific interelectrode distance, and determine the desired value of the real high-voltage electrostatic voltage applied to the donating needle U, at which the saturation limit begins. To speed up the process of finding the boundary voltages, it is possible with the real value of the interelectrode distance h_p to enter the generalized experimental reference graph h_p=f(U) and determine the desired value of the high-voltage electrostatic voltage U applied to the donating needle, at which the saturation boundary begins.

EFFECT: invention will improve the quality of design, calculation and creation of new domestic dual-use equipment, ground, air, aerospace and space-based single-use and reusable liquid hydrocarbon fuels and coolants, with improved resource characteristics.

7 cl, 3 dwg