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Pressurization of cryogens: A review of current technology and its applicability to low-gravity conditions

机译:制冷剂的加压:当前技术及其在低重力条件下的适用性综述

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摘要

A review of technology, history, and current status for pressurized expulsion of cryogenic tankage is presented. Use of tank pressurization to expel cryogenic fluids will continue to be studied for future spacecraft applications over a range of operating conditions in the low-gravity environment. The review examines experimental test results and analytical model development for quiescent and agitated conditions in normal-gravity, followed by a discussion of pressurization and expulsion in low-gravity. Validated, 1-D, finite difference codes exist for the prediction of pressurant mass requirements within the range of quiescent normal-gravity test data. To date, the effects of liquid sloshing have been characterized by tests in normal-gravity, but analytical models capable of predicting pressurant gas requirements remain unavailable. Efforts to develop multidimensional modeling capabilities in both normal and low-gravity have recently occurred. Low-gravity cryogenic fluid transfer experiments are needed to obtain low-gravity pressurized expulsion data. This data is required to guide analytical model development and to verify code performance.
机译:本文介绍了低温罐体加压驱逐的技术,历史和现状。对于未来的航天器应用,在低重力环境下的一系列运行条件下,将继续研究使用罐增压来排出低温流体。审查审查了正常重力下的静态和搅动条件的实验测试结果和分析模型的开发,然后讨论了低重力下的加压和排出。在静态法向重力测试数据范围内,存在经过验证的一维有限差分代码,可用于预测压力质量要求。迄今为止,液体晃动的影响已经通过在正常重力下的测试进行了表征,但是仍然无法使用能够预测增压气体需求的分析模型。近来已经发生了在正常重力和低重力两种情况下开发多维建模能力的工作。需要进行低重力低温流体传输实验,以获取低重力加压排放数据。需要这些数据来指导分析模型的开发和验证代码性能。

著录项

  • 作者

    Vandresar, N. T.;

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  • 年度 1992
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  • 原文格式 PDF
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