Results 11 to 20 of about 14,546 (303)
Evaluating New Liquid Storable Bipropellants: Safety and Performance Assessments
Aerospace, 2022 Conventional storable bipropellants make use of hydrazine and its derivatives as fuels and nitrogen tetroxide as an oxidizer. In recent years, the toxicity character of these chemicals pushed the propulsion community towards “green” alternatives. Several
Stefania Carlotti, Filippo Maggi
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Development of POLON—A Green Microsatellite Propulsion Module Utilizing 98% Hydrogen Peroxide
Aerospace, 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
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Micromachines, 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
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Impact of Hydrogen Peroxide Concentration on Manganese Oxide and Platinum Catalyst Bed Performance
Aerospace, 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
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Defence Technology, 2018 This paper presents the catalytic effects of Cu-Co* catalyst on the decomposition of AN and AN/KDN based oxidizer and propellant samples. Ozawa-Flynn-Wall (OFW) iso-conversional method was used for the kinetic studies and to compute the activation energy
Pratim Kumar +3 more
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Emission Characteristics of NOx During the Combustion of Waste Energetic Materials [PDF]
E3S 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
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A method for comparing the performance of power plants for vertical flight [PDF]
, 1952 A new method of power plant selection for vertical flight is proposed. It can be used to determine whether the performance of a rocket design can be improved by substituting for the rocket motor a different power plant such as a ramjet.
Tsien, H. S.
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Fast E-sail Uranus entry probe mission [PDF]
, 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
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Quantitative Clarification of Stable Ignition Region for HKP110 Green Hypergolic Bipropellant
Aerospace, 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
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Future Fuels—Analyses of the Future Prospects of Renewable Synthetic Fuels
Energies, 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
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