Results 71 to 80 of about 979 (209)

Theoretical Research on the Combustion Characteristics of Ammonium Dinitramide-Based Non-Toxic Aerospace Propellant

open access: yesAerospace
Propellants play a crucial role in the propulsion systems of aerospace vehicles, and their combustion characteristics are susceptible to external environmental conditions. This study systematically investigated the impact of various initial conditions on
Jianhui Han   +7 more
doaj   +1 more source

ADN – The new oxidizer around the corner for an environmentally friendly smokeless propellant [PDF]

open access: yesJournal of Aerospace Technology and Management, 2009
The search for a smokeless propellant has encouraged scientists and engineers to look for a chlorine-free oxidizer as a substitute for AP (ammonium perchlorate).
Márcio Y. Nagamachi   +3 more
doaj  

Electronic Structure Studies of Tetrazolium-Based Ionic Liquids [PDF]

open access: yes, 2006
New energetic ionic liquids are investigated as potential high energy density materials. Ionic liquids are composed of large, charge-diffuse cations, coupled with various (usually oxygen containing) anions.
Boatz, Jerry   +3 more
core   +3 more sources

Green Propulsion Auxiliary Power Unit Demonstration at MSFC [PDF]

open access: yes
In 2012, the National Aeronautics & Space Administration (NASA) Space Technology Mission Directorate (STMD) began the process of building an integrated technology roadmap, including both technology pull and technology push strategies.
Robinson, Joel W.
core   +4 more sources

Experimental Study on the Influence of Microwave Energy Pulse Width and Duty Cycle on Evaporation and Ignition Characteristics of ADN-Based Liquid Propellant Droplets

open access: yesAerospace
This study investigates the evaporation and ignition characteristics of a single droplet of ammonium dinitramide (ADN)-based liquid propellant utilizing a waveguide resonant cavity device, in conjunction with a high-speed photographic imaging system and ...
Dezhao Yu   +5 more
doaj   +1 more source

Development and Testing of a Green Monopropellant Ignition System [PDF]

open access: yes
This paper will detail the development and testing of a "green" monopropellant booster ignition system. The proposed booster ignition technology eliminates the need for a pre-heated catalyst bed, a high wattage power source, toxic pyrophoric ignition ...
Eilers, Shannon D.   +4 more
core   +1 more source

Thermooxidative stability of PMMA composites [PDF]

open access: yes, 2012
Tato práce se zabývá studiem termooxidační stability kompozitů polymethylmethakrylátu (PMMA) plněného mikro a nanočásticemi siliky. V připravených vzorcích byly použity různé objemové zlomky a různé velikosti částic siliky.
Čechová, Eva
core  

Green Propellants - Oxidizers

open access: yesJournal of Aerospace Technology and Management, 2013
http://dx.doi.org/10.5028/jatm.v5i2.229 The research for low toxicity and no damage to the environment has stimulated the development of specific investigation lines in many areas.
Gilson da Silva   +2 more
doaj  

Final Report on the Detection of Green Monopropellants [PDF]

open access: yes
In 2014, National Aeronautics and Space Administration (NASA) Kennedy Space Center (KSC) funded a project titled "Familiarization and Detection of Green Monopropellants" utilizing Independent Research and Technology Development (IR&TD) and Center ...
Bauer, Brint M.   +5 more
core   +1 more source

ADN and HAN-based energetic fuels – A Minireview on compatibility and chemical stability in aqueous media [PDF]

open access: yes, 2019
This article gives a short review on compatibility and chemical stability of selected aqueous ADN and HAN‐based energetic formulations. A brief introduction will outline Energetic Ionic Liquids (EILs) as a new class of energetic materials with beneficial
Ciezki, Helmut, Freudenmann, Dominic
core   +1 more source

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