Results 31 to 40 of about 1,179 (158)

Prilling and Coating of Ammonium Dinitramide (ADN) Solid Green Propellant in Toluene Mixture Using Ultrasound Sonication

Aerospace, 2018
Ammonium Dinitramide (ADN) in its generic form has a long needle shaped structure, which hinders higher solid loading. Therefore, it is of utmost importance to optimize its crystal morphology into octagonal shapes.
Asad Rahman, Jitkai Chin, Kean How Cheah
doaj   +1 more source

Recent advances in hypergolic ionic liquids with broad potential for propellant applications

FirePhysChem, 2022
As a promising choice of new-generation green propellant fuels, hypergolic ionic liquids (HILs) have attracted a great deal of interest in recent ten years, illustrated by their applications in the field of space science and exploring outer space.
Yunhe Jin, Wenquan Zhang, Zhiyu Zhou, Tianlin Liu, Honglei Xia, Shi Huang, Qinghua Zhang   +6 more
doaj   +1 more source

Cinnamomum verum Bark Extract Mediated Green Synthesis of ZnO Nanoparticles and Their Antibacterial Potentiality

Biomolecules, 2020
Cinnamomum verum plant extract mediated propellant chemistry route was used for the green synthesis of zinc oxide nanoparticles. Prepared samples were confirmed for their nano regime using advanced characterization techniques such as powder X-ray ...
Mohammad Azam Ansari, Mahadevamurthy Murali, Daruka Prasad, Mohammad A. Alzohairy, Ahmad Almatroudi, Mohammad N. Alomary, Arakere Chunchegowda Udayashankar, Sudarshana Brijesh Singh, Sarah Mousa Maadi Asiri, Bagepalli Shivaram Ashwini, Hittanahallikoppal Gajendramurthy Gowtham, Nataraj Kalegowda, Kestur Nagaraj Amruthesh, Thimappa Ramachandrappa Lakshmeesha, Siddapura Ramachandrappa Niranjana   +14 more
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Hydrogen peroxide – A promising oxidizer for rocket propulsion and its application in solid rocket propellants

FirePhysChem, 2022
This paper discusses the potential use of hydrogen peroxide as oxidizer for solid rocket propulsion. While hydrogen peroxide is a liquid in normal conditions, it may be used in solid rocket motor grains.
Wioleta Kopacz, Adam Okninski, Anna Kasztankiewicz, Paweł Nowakowski, Grzegorz Rarata, Pawel Maksimowski   +5 more
doaj   +1 more source

Green Propellant Loading Demonstration at U.S. Range [PDF]

52nd AIAA/SAE/ASEE Joint Propulsion Conference, 2016
The Green Propellant Loading Demonstration (GPLD) was conducted December 2015 at Wallops Flight Facility (WFF), leveraging work performed over recent years to bring lower toxicity hydrazine replacement green propellants to flight missions. The objective of this collaboration between NASA Goddard Space Flight Center (GSFC), WFF, the Swedish National ...
Henry Mulkey, Joseph T. Miller, Caitlin Bacha   +2 more
openaire   +1 more source

Investigation of the Combustion Products of Ionic Liquid-Based Green Propellants Using Infrared Spectroscopy

Aerospace
In rocketry today, conventional hypergolic propellant combinations typically use hydrazine-derived fuels and oxidizers based on nitrogen tetroxide. Due to their high toxicity and consequently expensive handling, safer alternatives, so-called “green ...
Jacob Oberndorfer, Philipp Teuffel, Sophie C. Stölzle, Dominic Freudenmann, Christoph U. Kirchberger   +4 more
doaj   +1 more source

Biodiesel from Algal Biomass: Renewable, and Environment-friendly Solutions to Global Energy Needs and its Current Status

ES General
In this growing world with new developing technologies, the sector of science and analysis are accenting a lot for searching out an altered way which would be considered as environmentally compatible propellant over fossil fuels.
Soumyadip Das, Tapanjyoti Goswami, Anjana Ghosh, Mahesh Bhat, Milan Hait, Ramzi T. T. Jalgham, Vidya L, Radharani Das, Jyoti Goswami, Gourisankar Roymahapatra   +9 more
doaj   +1 more source

Development and Characterization of Hydrogen Peroxide Gels with Organic Gelling Agents for Use with Microencapsulated Fuels

Aerospace
Hydrogen peroxide is a promising oxidizer and monopropellant for space propulsion, offering a green alternative to conventional propellants. In combination with microencapsulated hydrocarbon fuels, a new type of monopropellant can be formed that unites ...
Robin Scholl, Eva Steinmann, Dominic Freudenmann, Stefan Schlechtriem   +3 more
doaj   +1 more source

Performance Evaluation of Ammonium Dinitramide-Based Monopropellant in a 1N Thruster

Aerospace
The development of propulsion systems based on green propellants, as an alternative to hydrazines, has been gaining interest within the space community.
Wonjae Yoon, Vikas Khandu Bhosale, Hosung Yoon   +2 more
doaj   +1 more source

ADN – THE NEW OXIDIZER AROUND THE CORNER FOR AN ENVIRONMENTALLY FRIENDLY SMOKELESS PROPELLANT. doi:10.5028/jatm.2009.0102153160

Journal of Aerospace Technology and Management, 2011
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, José Irineu S. Oliveira, Aparecida M. Kawamoto, Rita de Cássia L. Dutra   +3 more
doaj