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首页> 外文会议>International Astronautical Congress >LIQUID PROPELLANT BEHAVIOUR PECULIARITIES UNDER THEIR DISCHARGE IN VACUUM FROM TANKS DURING PASSIVATION OF THE LV WASTER STAGES
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LIQUID PROPELLANT BEHAVIOUR PECULIARITIES UNDER THEIR DISCHARGE IN VACUUM FROM TANKS DURING PASSIVATION OF THE LV WASTER STAGES

机译：液体推进剂行为特性在LV Waster阶段的钝化期间从罐中排出真空

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摘要

In accordance with the international standard requirements for space debris mitigation, the passivation of the LV wasted stages represents one of the most effective measures under which is conducted discharge of residual pressurization gas and propellants in vacuum. Comprehensive physical, heat-mass exchange and gas-dynamic intratank processes and also phase transformations occurring under discharge of residual pressurization gas, vapors and liquid propellants in vacuum are reviewed. On basis of obtained experience, conditions of possible freezing and interaction of propellants and also appearance of explosion-danger situations were analyzed. Some experimental-theoretical dependences and correlations for calculation and definition of affecting factors were defined. Design measures and devices for passivation were classified depending on propellants type, features of propellant tank construction and orbital parameters. Features of technical solutions, implementation and effectiveness of measures taking into account experimental data obtained during some launch-vehicles missions were shown and recommendations were given.
机译：按照国际空间碎片减缓的标准要求，LV浪费阶段的钝化代表了最有效的措施之一，其中在真空中排出残留的加压气体和推进剂。综述了综合物理，热量交换和气体动力学液体进程以及在真空中排出的残留加压气，蒸气和液体推进剂的出现发生的相变。在获得的经验的基础上，分析了推进剂可能的冻结和相互作用的条件以及爆炸危险情况的出现。定义了一些实验理论依赖性和影响因子的计算和定义的相关性。根据推进剂类型，推进剂罐建筑和轨道参数的特征，设计措施和设备进行分类。表明了技术解决方案的特点，考虑到某些发射车辆任务中获得的实验数据的措施的实施和有效性，并提供了建议。

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