四氧化二氮低温非稳态导热模型研究  

Study on transient heat conduction model of dinitrogen tetroxide in low temperature

作　　者：焦天恕[1] 信聪[1] 齐彦兴[2] 

机构地区：[1]中国酒泉卫星发射中心,酒泉732750 [2]中科院兰州化学物理研究所,兰州730000

出　　处：《火箭推进》2008年第6期55-59,共5页Journal of Rocket Propulsion

摘　　要：四氧化二氮在低温条件下容易凝结为固体而对航天发射产生难以预见的影响,本文依据非稳态传热理论对低温环境中不同管径圆柱管道内的四氧化二氮导热情况进行了研究,建立了圆柱管道四氧化二氮低温非稳态导热模型,经验证与实际情况拟合较好。Liquid dinitrogen tetroxide （N2O4） tends to change to solid phase in low temperature which may affect the launch progress. Based on the theory of transient heat conduction, the transient heat conduction of N2O4 in pipes of different diameters was researched, and the transient heat conduction model of N2O4 in low temperature was established. Tests show that the experimental and the model results are in good accordance.

关 键 词：四氧化二氮 低温 非稳态导热 

分 类 号：V511[航空宇航科学与技术—航空宇航推进理论与工程]