Results 11 to 20 of about 32,742 (216)

Effect of Spherical Silver Particles Size of the Catalyst Bed on Hydrogen Peroxide Monopropellant Thruster Performance [PDF]

Journal of Applied Fluid Mechanics
In this paper, an analytical approach combined with a two-dimensional computational fluid dynamics (CFD) model is pursued to simulate the fluid flow in a monopropellant thruster for satellite propulsion systems.
F. Benzenine, C. Seladji, D. Darfilal, O. Bendermel   +3 more
doaj   +2 more sources

Effect of Structural Materials on Monopropellant Thruster Propulsion Performance in Micro Scale

Aerospace, 2023
This paper reports on the effect of structural materials on heat loss-associated propulsion performance degradation of monopropellant thrusters in the micro scale.
Jeongmoo Huh, Ki Sun Park
doaj   +2 more sources

The Experimental Investigation of a 98% Hydrogen Peroxide Monopropellant Thruster Comprising the Metal-Foam-Supported Manganese Oxide Catalyst

Aerospace, 2023
The article presents alternative metal-supported catalysts for decomposition of the highest-class hydrogen peroxide: 98%+ (Type 98 HP, according to MIL-PRF-16005F).
Pawel Surmacz, Zbigniew Gut
doaj   +2 more sources

Experimental Investigation of PWM Throttling in a 50-Newton-Class HTP Monopropellant Thruster: Analysis of Pressure Surges and Oscillations

Aerospace
High-test peroxide (HTP) monopropellant thrusters are being considered for spacecraft lander missions due to their simplicity and reduced toxicity compared to traditional propellants. Pulse-Width Modulation (PWM) throttling is a key technique for precise
Suk Min Choi, Christian Bach
doaj   +2 more sources

Evaluation and Performance Optimization of a Hydrogen Peroxide-Based Green Monopropellant Thruster for Steady-State Operations

Aerospace
Hydrogen peroxide (High Test Peroxide, HTP) emerges as a promising candidate for green space propulsion applications due to its lower toxicity compared to liquid conventional propellants such as hydrazine and nitrogen tetroxide.
Uğur Kokal, Mustafa Baysal, Nur Ber Emerce, Yiğit Yıldız, Arif Karabeyoğlu, İbrahim Özkol   +5 more
doaj   +2 more sources

Effects of Geometrical Parameters of a Two-Sided Catalyst Bed on Flow and Thermal Fields of a Monopropellant Hydrazine Thruster [PDF]

فصلنامه علوم و فناوری فضایی, 2022
In present study, a hydrazine based monopropellant thruster decomposition chamber is simulated numerically. The catalyst bed separated in two sides, the particles size in upstream side is larger than those in downstream side.
Mohammad Reza Salimi
doaj   +2 more sources

Experimental Investigation of Hydrogen Peroxide and Nitrous Oxide in a 1-Newton Catalyst-Based Monopropellant Research Thruster

Aerospace
As part of the GreenRAIM activity of the European Space Agency (ESA), an extensive test campaign involving various monopropellants was undertaken. In this work, design and test results of an additively manufactured 1-Newton monopropellant thruster are ...
Florian Merz, Till Hörger, Johan Steelant, Felix Lauck, Christoph Kirchberger   +4 more
doaj   +2 more sources

Advancing green propulsion: Experimental analysis of dual-mode operation in a hydrogen peroxide monopropellant thruster

Propulsion and Power Research
Hydrogen peroxide (HTP) is receiving renewed attention as a green monopropellant for small-satellite propulsion. This study presents the design and experimental evaluation of a hydrogen peroxide monopropellant thruster capable of operating in both steady-
Djamal Darfilal, Fatima Alhammadi, Abderrahim Nabi, Jeongmoo Huh, Khatir Mohamed, Elena Fantino, Abdul Hai, Sean Shan Min Swei   +7 more
doaj   +2 more sources

Study the Performance of Hydrazine Monopropellant Thruster Catalysts with Different Iridium Loading [PDF]

علوم، فناوری و کاربردهای فضایی, 2022
In this paper, the effects of different weight percentage of iridium (Ir) nanoparticles loadings on performance parameters of hydrazine catalyst and monopropellant thruster have been studied. Nanoparticles of iridium with different contents of 10 wt%, 20
Nooredin Ghadiri Massoom, alireza rajabi, mohamad ali amirifar, Zahra Amirsardari, Akram Dourani, majid kamranifar   +5 more
doaj   +1 more source

Combustion Wave Structure of the Ammonium Dinitramide‐Based Ionic Liquid Propellant

Propellants, Explosives, Pyrotechnics, Volume 48, Issue 2, February 2023., 2023
Abstract The ammonium dinitramide‐based ionic liquid propellant (ADN‐based ILP), which is a mixture of ADN, monomethylamine nitrate (MMAN), and urea, is a low toxic monopropellant with a higher performance than that of hydrazine. To clarify the combustion wave structure of ADN‐based ILP, which has low volatility, we focused on the relationship between ...
Yuichiro Ide, Yu‐ichiro Izato, Mitsuo Koshi, Atsumi Miyake, Hiroto Habu, Shinichiro Tokudome   +5 more
wiley   +1 more source