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arXiv 0810.3994physics.plasm-ph
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具有输入功率和推力水平的霍尔效应推力器的尺寸确定:经验方法

Sizing of Hall effect thrusters with input power and thrust level: An Empirical Approach

Kathe Dannenmayer, Stephane Mazouffre

摘要:

尺寸确定方法可用于获得对于给定输入功率和对应推力水平的所需霍尔推进器尺寸和操作条件的第一估计。在对现有方法进行评述的基础上,提出了一种新的方法,该方法考虑了推力器的三个特征尺寸,即通道长度、通道宽度和通道平均直径以及磁场。这种方法是基于从控制霍尔效应推进器特性的物理原理推导出的分析定律,依赖于一系列简化假设。此外,考虑了通道壁面温度和通道内推进剂原子密度的约束。定标律的有效性进行了讨论,在一个庞大的数据库,其中包括23个单级霍尔效应推力器覆盖的功率范围从10 W到50 kW。最后,采用尺寸确定方法获得能够分别提供1 N和1.5 N推力的20 kW和25 kW霍尔效应推进器的初步几何形状和磁场强度。

英文摘要:

Sizing methods can be used to get a first estimate of the required Hall thruster dimensions and operating conditions for a given input power and a corresponding thrust level. After a review of the existing methods, a new approach, which considers the three characteristic thruster dimensions, i.e. the channel length, the channel width and the channel mean diameter as well as the magnetic field, is introduced. This approach is based on analytical laws deduced from the physical principles that govern the properties of a Hall effect thruster, relying on a list of simplifying assumptions. In addition, constraints on the channel wall temperature as well as on the propellant atom density inside the channel are taken into account. The validity of the scaling laws is discussed in light of a vast database that comprises 23 single-stage Hall effect thrusters covering a power range from 10 W to 50 kW. Finally, the sizing method is employed to obtain a preliminary geometry and the magnetic field strength for a 20 kW and a 25 kW Hall effect thruster able to deliver a thrust of 1 N, respectively 1.5 N.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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