Results 11 to 20 of about 14,664 (299)

Advances in Synthesis and Ignition Performance of Ionic Liquid–Hydrogen Peroxide Green Propellants [PDF]

open access: yesMolecules
The ionic liquid–hydrogen peroxide propellant system has emerged as a promising green propellant candidate, synergistically combining the unique advantages of ionic liquids (such as negligible vapor pressure, low melting points, high thermal stability ...
Yongting Zhang   +3 more
doaj   +2 more sources

Influences of Infrared Dye Content and Laser Energy Density on Laser Propulsion Performance of ADN-Based Liquid Propellants [PDF]

open access: yesMicromachines
Ammonium dinitramide (ADN) is a new green oxidant, which is a kind of high-energy ionic liquid and has been widely used in the field of liquid propulsion.
Lizhi Wu   +4 more
doaj   +2 more sources

Development of POLON—A Green Microsatellite Propulsion Module Utilizing 98% Hydrogen Peroxide

open access: yesAerospace, 2022
The following paper presents the key design and test activities associated with the development of POLON—a green microsatellite propulsion module using 98% Hydrogen Peroxide (HTP).
Jakub Gramatyka   +7 more
doaj   +1 more source

Effect of Combustion Chamber Geometrical Parameters on the Decomposition and Combustion Characteristics of an ADN-Based Thruster

open access: yesMicromachines, 2022
In this paper, numerical simulations were used to study the decomposition and combustion processes inside the 0.2 N-class ADN-based thruster, and the effects of two geometrical parameters (length and diameter) of the combustion chamber on the combustion ...
Yangyang Hou   +3 more
doaj   +1 more source

Impact of Hydrogen Peroxide Concentration on Manganese Oxide and Platinum Catalyst Bed Performance

open access: yesAerospace, 2023
This study investigates the use of MnxOy/Al2O3 and Pt/Al2O3 catalysts for the decomposition of hydrogen peroxide in thrusters. It describes the purpose, procedures, performance, and conclusions coming from the test campaign of the catalyst lifetimes.
Adrian Parzybut   +2 more
doaj   +1 more source

Emission Characteristics of NOx During the Combustion of Waste Energetic Materials [PDF]

open access: yesE3S Web of Conferences, 2023
A large amount of NOx will be produced during the combustion process of waste energetic materials (EMs), which is extremely harmful to human health and ecological environment, and has become an urgent problem for all countries to solve.
Wang ShouYu, Jin GuoRui, He WeiDong
doaj   +1 more source

Fast E-sail Uranus entry probe mission [PDF]

open access: yes, 2014
The electric solar wind sail is a novel propellantless space propulsion concept. According to numerical estimates, the electric solar wind sail can produce a large total impulse per propulsion system mass.
Janhunen, Pekka   +5 more
core   +4 more sources

Quantitative Clarification of Stable Ignition Region for HKP110 Green Hypergolic Bipropellant

open access: yesAerospace, 2022
As a candidate for a green hypergolic bipropellant, the combination of highly concentrated hydrogen peroxide and fuel with dissolved sodium borohydride has been widely studied.
Keigo Hatai, Taiichi Nagata
doaj   +1 more source

Review of State-of-the-Art Green Monopropellants: For Propulsion Systems Analysts and Designers

open access: yesAerospace, 2021
Current research trends have advanced the use of “green propellants” on a wide scale for spacecraft in various space missions; mainly for environmental sustainability and safety concerns.
Ahmed E. S. Nosseir   +2 more
doaj   +1 more source

Future Fuels—Analyses of the Future Prospects of Renewable Synthetic Fuels

open access: yesEnergies, 2019
The Future Fuels project combines research in several institutes of the German Aerospace Center (DLR) on the production and use of synthetic fuels for space, energy, transportation, and aviation.
Thomas Pregger   +25 more
doaj   +1 more source

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