Results 1 to 10 of about 206,979 (214)

Space Propulsion Technology for Small Spacecraft [PDF]

Proceedings of the IEEE, 2018
As small satellites become more popular and capable, strategies to provide in-space propulsion increase in importance. Applications range from orbital changes and maintenance, attitude control and desaturation of reaction wheels to drag compensation and de-orbit at spacecraft end-of-life.
David Krejčí, Paulo Lozano
exaly   +4 more sources

A Review of Low-Power Electric Propulsion Research at the Space Propulsion Centre Singapore

Aerospace, 2020
The age of space electric propulsion arrived and found the space exploration endeavors at a paradigm shift in the context of new space. Mega-constellations of small satellites on low-Earth orbit (LEO) are proposed by many emerging commercial actors ...
George-Cristian Potrivitu, Yufei Sun, Muhammad Wisnuh Aggriawan bin Rohaizat, Oleksii Cherkun, Luxiang Xu, Shiyong Huang, Shuyan Xu   +6 more
doaj   +3 more sources

Alternative solid hydrocarbons as propellants for electrothermal plasma radio-frequency thrusters [PDF]

Scientific Reports
Onboard propulsion is vital for extending the operational lifespan of CubeSat missions. Although electrothermal plasma thrusters are a promising low-power solution, their development has historically focused on gaseous propellants, leaving alternative ...
Thimthana Lee, Mahdi Davoodianidalik, Dimitrios Tsifakis, Roderick W Boswell, Christine Charles   +4 more
doaj   +2 more sources

Flame Characteristics and Response of a High-Pressure LOX/CNG Rocket Combustor with Large Optical Access

Aerospace, 2022
Hot-fire tests were performed with a single-injector research combustor featuring a large optical access (255 × 38 mm) for flame imaging. These tests were conducted with the propellant combination of liquid oxygen and compressed natural gas (LOX/CNG) at ...
Jan Martin, Wolfgang Armbruster, Dmitry Suslov, Robert Stützer, Justin S. Hardi, Michael Oschwald   +5 more
doaj   +1 more source

Interface Adhesion Property and Laser Ablation Performance of GAP-PET Double-Layer Tape with Plasma Treatment

Nanomaterials, 2022
In the field of laser ablation micro-propulsion, the property of double-layer tape has significant impact on the propulsion performance. In this paper, low temperature plasma was used to treat the surface of polyethylene terephthalate (PET) to improve ...
Sibo Wang, Bangdeng Du, Baoyu Xing, Yanji Hong, Ying Wang, Baosheng Du, Yongzan Zheng, Jifei Ye, Chenglin Li   +8 more
doaj   +1 more source

Experimental Investigation of Flame Anchoring Behavior in a LOX/LNG Rocket Combustor

Aerospace, 2023
Hot fire tests of a multi-injector research combustor were performed with liquid-oxygen and liquefied-natural-gas (LOX/LNG) propellants at chamber pressures from 30 up to 67 bar, hence at conditions similar to an upper stage rocket engine.
Jan Martin, Michael Börner, Justin Hardi, Dmitry Suslov, Michael Oschwald   +4 more
doaj   +1 more source

Metal-Organic Frameworks Promoted Hydrogen Storage Properties of Magnesium Hydride for In-Situ Resource Utilization (ISRU) on Mars

Frontiers in Materials, 2021
Hydrogen is regarded as a promising solution to fulfill the energy demand of Mars human base in the future. Through in-situ resource utilization (ISRU) on Mars, the composite of metal-organic frameworks (MOFs) and magnesium hydride which demonstrates ...
Ze Zhang, Ze Zhang, Yuanding Wang, Yuanding Wang, Haoming Wang, Haoming Wang, Xiang Xue, Xiang Xue, Qingguo Lin, Qingguo Lin   +9 more
doaj   +1 more source

Control of opening duration in a pneumatically operated valve with two-fluid combination and quadratic damping

Journal of Engineering and Applied Science, 2023
In this paper, opening characteristics of a pneumatically operated valve and methodology for controlling the valve opening duration have been investigated through numerical simulation.
Debanjan Das, Shrey Waghmare, P. Padmanabhan, V. Kumaresan, D. P. Sudhakar   +4 more
doaj   +1 more source

SITAEL HC1 Low-Current Hollow Cathode

Aerospace, 2020
SITAEL is active in the field of electric propulsion and is involved in the development of different thruster technologies—mainly Hall thrusters (HTs)—of power levels ranging from 100 W up to 20 kW.
Daniela Pedrini, Cosimo Ducci, Ugo Cesari, Tommaso Misuri, Mariano Andrenucci   +4 more
doaj   +1 more source

Improved Wall Temperature Prediction for the LUMEN Rocket Combustion Chamber with Neural Networks

Aerospace, 2023
Accurate calculations of the heat transfer and the resulting maximum wall temperature are essential for the optimal design of reliable and efficient regenerative cooling systems.
Kai Dresia, Eldin Kurudzija, Jan Deeken, Günther Waxenegger-Wilfing   +3 more
doaj   +1 more source