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首页> 外文期刊>International Journal of Heat and Mass Transfer >Test Data Analysis of the Vented Chill, No-Vent Fill Liquid Nitrogen CRYOTE-2 Experiments
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Test Data Analysis of the Vented Chill, No-Vent Fill Liquid Nitrogen CRYOTE-2 Experiments

机译：测试数据分析通风寒冷，No-Neast填充液氮冷冻液-2实验

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NASA is interested in developing efficient methods with which to transfer cryogenic propellants to enable future in-space cryogenic propellant vehicles, particularly the cryogenic fuel depot. The process of transferring cryogenic propellants between two vessels in a reduced gravity environment is complicated by the low normal boiling point of cryogens, high propensity for boiling during tank chilldown, and the fact that liquid cannot be transferred with the receiver tank vent valve open to space. This paper presents test data analysis of the liquid nitrogen vented chill, no-vent fill (NVF) experiments on the CRYOTE-2 tank. 53 tests were conducted, and while not originally intended, were performed in a somewhat parametric fashion. Performance between three different injectors are compared, as well as the effect of initial receiver tank wall temperature, receiver tank fluid initial condition, supply pressure, mass flow rate, and trigger point on the NVF process. From in-depth test data analysis, the highest performing injector based on maximizing evaporation heat and mass transfer between droplets and ullage as well as condensation heat transfer at the liquid/vapor interface, was the 3-spray injector.
机译：美国宇航局对开发有效的方法有兴趣转移低温推进剂，以使未来的空间低温推进剂车辆，特别是低温燃料仓库。在减少重力环境中转移两个血管之间的低温推进剂的过程是通过低正常沸点的低常规沸点，在罐中沸腾的高倾向，并且液体不能与接收器罐通风阀转移到空间的事实。本文介绍了在电冷-2罐上的液氮排出的寒冷，No-end填充（NVF）实验的测试数据分析。进行了53个测试，虽然最初是以稍微参数的方式进行。比较三种不同的注射器之间的性能，以及初始接收器储罐壁温，接收器罐初始条件，供应压力，质量流量和NVF过程的触发点的效果。从深度测试数据分析，基于最大化蒸发热量和液滴和ullage之间的质量传递的最高性能的注射器以及液体/蒸气界面处的冷凝传热，是3喷涂器。

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