A fully cylindrical Hall thruster prototype was tested in the power range of 30–300 W with the objective of understanding the behavior of the discharge as a function of input parameters. Various operating conditions were compared, including two magnetic field configurations, a set of propellant mass flow rates, and a range of discharge voltages. Pl...
The M1-multigroup model intricately captures the interaction between light and matter, incorporating the spectral behaviour of photons. However, a critical aspect of this model lies in determining the Eddington factor, which is used in the closure relation linking radiative pressure to radiative energy. Despite lacking an analytical expression, our...
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We report on the voltage-current characteristics as well as the voltage-velocity characteristics of a needle-to-ring configuration by self-consistent, 2D-axisymmetric, multi-physics plasma-fluid simulations. Parametric studies are performed to investigate the effects of background ionization level on the plasma electrical characteristics as well as...
The aim of this article is to improve the performance of DBD excimer lamps systems for UV production. Within this framework, our approach considers two distinct directions: the geometric dimensions of the double-barrier lamp bulb and the characteristics of the power supply. To explore these directions, a sampling of 19 bulbs of different geometries...
Clustering offers multiple benefits compared to a single large thruster: a wider operating range since thrusters can be fired individually or in combination, a reduced cost due to the mass production of thrusters, an increased redundancy in case of a thruster failure, and enhanced thrust vectoring capabilities based on thruster arrangement. A signi...
IPSA-Orbital Nano Experiments (IPSA-ONE) is a student association at Institut Polytechnique des Sciences Avancees (IPSA), an aerospace engineering school. Its mission is to design an ion thruster to counter the atmospheric experienced by satellites in Low Earth Orbit (LEO) and also to introduce students to the field of electric propulsion (EP) and ...
This paper presents a technique for reconstructing the temporal evolution of ion distribution functions in a Hall thruster (HT) from ion currents measured with a retarding potential analyzer (RPA). The method involves averaging discharge oscillations and temporally realigning them based on discharge current maxima. The technique was applied to ion ...
Excessive pesticides application in agriculture leads to pollution of both surface water and groundwater. While conventional methods used in wastewater treatment plants remain partially effective for persistent organic pollutants (POPs), advanced oxidation processes are employed to more efficiently degrade these contaminants [1]. Among the advanced...
In this contribution, we report the preliminary results on the use of MHCD discharges for nitriding treatments on metallic substrates. The MHCD design employed in this study consists in a matrix made of 39 axisymmetric isotropic cavity etched on a 500 µm thick Si wafer (100 µm circular aperture diameter and 30µm depth). A thin layer SiO2 generated ...
