INSTALLATION FOR RESEARCH OF WEARING PROCESSES OF HEAT AND MASS TRANSFER Russian patent published in 2019 - IPC G01K17/00 G01N25/00 G01N25/20 

FIELD: rocket equipment.

SUBSTANCE: invention relates to rocket technology and is intended for the study of heat and mass transfer processes in the construction of solid propellant rocket engines (SPRE). Installation for studying the processes of heat and mass transfer contains a gas generator on solid fuel, a gas duct with a cylindrical channel with local resistance, thermal sensors and a nozzle. Outer surface of the gas duct with a cylindrical channel is made with one or several faces, the wall thickness of the gas duct with a cylindrical channel in the facet region is (0.4…0.8) δ, where δ – the wall thickness of the gas duct with a cylindrical channel in the area without edges, δ=(P∙D∙C)/2σ, where P is the pressure in the gas duct with a cylindrical channel, D is the diameter of the gas pipe with a cylindrical channel, C – safety coefficient, σ – strength of the material of the gas duct wall at an average temperature across the wall thickness in the cross section of the gas duct with a cylindrical channel with maximum heating during testing, and thermal sensors are placed in the longitudinal plane passing through the axis of the gas duct with a cylindrical channel and the cross section of the face with the minimum wall thickness.

EFFECT: improving the accuracy of determining the parameters of heat and mass transfer.

1 cl, 1 dwg