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Simulating oxygen production on Mars for the Mars Oxygen In-Situ Resource Utilization Experiment

机译：用于火星氧气现场资源利用实验的模拟火星上的氧气产生

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The Mars Oxygen In-Situ Resource Utilization Experiment (MOXIE) represents the first time that NASA is demonstrating In-Situ Resource Utilization (ISRU) on the surface of another planetary body. MOXIE will produce oxygen from atmospheric CO2 on Mars. It is being developed for NASA's 2020 Mars Rover and will produce greater than 99.6% pure oxygen through solid oxide electrolysis. MOXIE is roughly 0.5% of the scale that would be necessary to produce oxygen for breathing and use as a propellant for a human Mars mission.Tests are being performed on MOXIE in the laboratory at NASA's Jet Propulsion Laboratory (JPL) and the Massachusetts Institute of Technology (MIT). At the same time, a model is being developed to simulate and predict the performance of MOXIE. The ability to predict the performance of MOXIE on Mars is a critical step in preparation for surface operations. Without the ability to estimate inefficient or unsafe operating conditions, MOXIE operations on Mars run a spectrum of risk ranging from loss of efficiency to the loss of the entire mission. Therefore, to predict performance and thus avoid subjecting flight hardware to unsafe conditions, a dynamic model has been developed that simulates MOXIE's operation. Simulink, a package contained within the MATLAB programming language, was chosen as a convenient way to build this dynamic representation of MOXIE. The model is a combination of theoretical and empirical values regarding the gas flows, thermal transfers, electrochemistry, and control loops that are representative of the true MOXIE system. The results of this model have been validated against data from JPL's MOXIE testbed laboratory.This paper gives an overview of how MOXIE works and how it is modeled. MOXIE is the first instrument of its kind to leave the Earth, and the modeling of this instrument is similarly unique. As the dynamic model continues to evolve with new data, it becomes a fast and inexpensive way to test MOXIE without subjecting expensive hardware to hazardous conditions.
机译：火星氧气原位资源利用实验（MOXIE）是NASA首次在另一个行星体的表面上进行原位资源利用（ISRU）演示。 MOXIE将通过火星上的大气CO2产生氧气。它是为美国宇航局（NASA）的2020年火星漫游者（Mars Rover）开发的，将通过固体氧化物电解产生99.6％以上的纯氧。 MOXIE大约是产生氧气以呼吸和用作人类火星飞行推进剂所必需的规模的0.5％。MOXIE正在NASA喷气推进实验室（JPL）和麻省理工学院的实验室中进行测试。技术（MIT）。同时，正在开发一个模型来模拟和预测MOXIE的性能。预测MOXIE在火星上的性能的能力是准备水面作业的关键步骤。由于无法估算低效或不安全的运行状况，因此在火星上进行MOXIE操作会带来一系列风险，从效率下降到整个任务丧失。因此，为了预测性能并避免使飞行硬件遭受不安全状况的影响，已经开发了模拟MOXIE操作的动态模型。选择Simulink（包含在MATLAB编程语言中的一个软件包）作为构建MOXIE动态表示的便捷方法。该模型是有关代表真正的MOXIE系统的气流，热传递，电化学和控制回路的理论和经验值的组合。该模型的结果已根据JPL MOXIE测试平台实验室的数据进行了验证。本文概述了MOXIE的工作原理和建模方法。 MOXIE是同类中第一个离开地球的仪器，并且该仪器的建模也具有独特性。随着动态模型随着新数据的不断发展，它成为测试MOXIE的快速且廉价的方法，而不会使昂贵的硬件遭受危险条件的影响。

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