Results 161 to 170 of about 32,742 (216)
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A Combustion Stability Analysis for Catalytic Monopropellant Thrusters

Journal of Spacecraft and Rockets, 1972
An analytical means of determining the low-frequency combustion stability for catalytic monopropellant thrusters has been presented. The use of frequency-analysis from feedback control systems is shown to predict the conditions of stable-unstable operation of a 2001bf hydrazine thruster.
openaire   +1 more source

Monopropellant Thruster Exhaust Effects upon Spacecraft

Journal of Spacecraft and Rockets, 1971
a = ion engine exhaust opening radius A = cross-sectional area Ann = Einstein coefficient B = absorption coefficient c = speed of light D = thruster exhaust diameter at the thruster exhaust plane e = electron charge E = energy f = absorption oscillator strength (Landenburg/value) h = Planck constant / = photon intensity J = inner quantum number k ...
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Flight performance of a high-impulse monopropellant thruster

Journal of Spacecraft and Rockets, 1976
A discussion of flight experience obtained on a 250 lbf thrust monopropellant hydrazine thruster is presented. Consistent and highly predictable performance was achieved over the full range of operating conditions, and the catalyst bed resistance parameter was employed successfully in performance prediction.
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A monopropellant hydrazine MEMS thruster for attitude control of nanosatellites

2010 IEEE Students Technology Symposium (TechSym), 2010
This paper highlights the design and development of catalytic type mono-propellant hydrazine microthruster for space applications. In the process of development of microthruster the modeling & simulation of different parts/modules have been considered. Design of inlet feed channel and exit nozzle with different layout have been done to achieve required
null Pijus Kundu   +2 more
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Plume Characterization and Longitudinal Study for a Novel Liquid-Fed Pulsed Magnetoplasmadynamic Thruster Operating with a Green Monopropellant

2025 IEEE Pulsed Power & Plasma Science (PPPS)
Traditional pulsed plasma thrusters have a long heritage in spaceflight, with significant applications for low power operation, but with relatively low efficiency.
L. Organski, N. Babusis, A. Shashurin
semanticscholar   +1 more source

Pulse Response Times of Hydrogen Peroxide Monopropellant Thrusters

45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2009
The transient behavior of a monopropellant thruster was investigated. Throughout the study, MnO2/Al2O3 was used as the catalyst bed in order to eliminate the influence of the catalyst bed on the transient behavior. Three 50 Newton level test thrusters with different injectors, ullage volumes, and bed sizes were built.
Sungyong An   +4 more
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Hydrogen Peroxide Monopropellant Thruster for KSLV-Ⅱ Reaction Control System

Journal of the Korean Society for Aeronautical & Space Sciences, 2019
The third stage of the KSLV-II is equipped with the reaction control system that performs three axis-control during non-thrust coasting phase and performs a roll axis control during thrust phase.
Oh Sang-Gwan, 강신재, Dongho Oh
semanticscholar   +1 more source

Green Monopropellant 100mN Thruster

AIAA Propulsion and Energy 2021 Forum, 2021
Tim McKechnie   +6 more
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Performance Test of Hydrazine Decomposition Catalyst for Monopropellant Thruster

45th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit, 2009
In general, thruster hot-firing test should be performed in vacuum condition to simulate space environment. However in case of this study, for reducing cost and development schedule, most performance tests were carried out in atmospheric conditions with continuous nitrogen purging, only baseline hot-firing tests were performed in vacuum conditions for ...
In-tae Kim   +7 more
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Modelling and simulation of monopropellant hydrazine thrusters for spacecraft position control

Chemical Engineering & Technology, 1989
AbstractModelling of the kinetics of a 20‐N hydrazine thruster is carried out by considering two different heterogeneous reaction channels for hydrazine decomposition to the intermediate ammonia. The parameters of the reactor model are estimated by making use of temperature profiles at the wall of the decomposition chamber.
Günter Schulz‐Ekloff   +1 more
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