Simulation of heat transfer and mass transfer in cryogenic propeilant tank slight volume compression
A cryogenic liquid quantity gauge for low-g application is described, named the Compression Mass Gauge (CMG), operates on the principle of slightly changing the volume of the tank by an oscillating bellows. The resulting pressure change is measured and related by thermodynamics to the volume of vapor in the tank, from which the volume of liquid is computed. The mathematical model of propeilant tank with slight volume compression process is built The mass transfer and heat transfer models among gaseous proportion and cryogenic propeilant are projected in order to obtain the variation laws about the parameters, such as pressure and temperature in the gaseous proportion, propeilant flux of volatilization, tank wall temperature and so on. Differential equation group is comprised of actual gas state equation, conversation of energy equation, mass and heat transfer equations. The differential equation group is calculated by the means of four steps Runge-Kutta Method. The effect of the compression volume and propeilant flux of volatilization to the parameters in gaseous proportion is discussed.
liquid quantity gauge volume compression heat transfer mass transfer mathematical model
Juan Fu Xiaoqian Chen Yiyong Huang
College of Aerospace and Materials Engineering National University of Defense Technology, NUDT Changsha, P.R.China
国际会议
太原
英文
481-485
2010-10-22（万方平台首次上网日期，不代表论文的发表时间）