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INSTALLATION FOR RESEARCH OF WEARING PROCESSES OF HEAT AND MASS TRANSFER

机译:传热传质过程研究

摘要

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
机译:固体推进剂火箭发动机技术领域本发明涉及火箭技术,旨在研究固体推进剂火箭发动机(SPRE)中的传热和传质过程。用于研究传热和传质过程的装置包括:固体燃料气体发生器,带局部电阻的圆柱形通道的气体管道,热传感器和喷嘴。带有圆柱形通道的气管的外表面有一个或多个面,在小平面区域带有圆柱形通道的气管的壁厚为(0.4…0.8)δ,其中δ–气体的壁厚在没有边缘的区域中具有圆柱形通道的管道,δ=(P∙D∙C)/2σ,其中P是具有圆柱形通道的气体管道中的压力,D是具有圆柱形通道的气体管道的直径, C –安全系数,σ–在具有圆柱形通道的燃气管道横截面中的平均温度下,燃气管道壁的材料在整个壁厚上的强度,在测试过程中具有最大的加热,并且在纵向方向上放置了热传感器平面;通过带有圆柱通道的气体通道轴线的平面;壁的最小厚度的表面横截面;效果:提高确定传热和传质参数的精度; 1 cl,1 dwg

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