Results 11 to 20 of about 9,538 (308)

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

open access: yesFirePhysChem, 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   +6 more
doaj   +1 more source

The Role of Thrusters in Space Systems [PDF]

open access: yesفناوری در مهندسی هوافضا, 2020
Spacecrafts, such as artificial satellites and space probes have small rockets called thrusters for orbital maneuvering, and satellite attitude control. These thrusters produce thrust by exhausting gases from their nozzles.
Sajjad Hosseinzadeh alqoo   +1 more
doaj  

Evaluating New Liquid Storable Bipropellants: Safety and Performance Assessments

open access: yesAerospace, 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
doaj   +1 more source

Successful development of HAN based green propellant

open access: yesEnergetic Materials Frontiers, 2021
Research and development of Hydroxyl Ammonium Nitrate based liquid propellant; SHP-163 is reviewed. Starting from the composition selection of the propellant to the development of 1 ​N thruster of Green Propellant Reaction Control System (GPRCS) project and the successful demonstration test in space is summarized.
Toshiyuki Katsumi, Keiichi Hori
openaire   +2 more sources

Reactor Structure for the Decomposition of ADN-Based Monopropellant

open access: yesAerospace, 2023
Ammonia dinitramide (ADN)-based liquid monopropellants are considered to be environmentally friendly alternatives to the toxic and carcinogenic hydrazine-based propellants. Hence, Space Solutions Co., Ltd.
Wonjae Yoon   +2 more
doaj   +1 more source

Hydrogen peroxide – A promising oxidizer for rocket propulsion and its application in solid rocket propellants

open access: yesFirePhysChem, 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   +5 more
doaj   +1 more source

Polyurethanes Based on Environmentally Friendly Polyols as a Promising Alternative to HTPB Binder for Composite Propellant Rockets

open access: yesProceedings, 2023
Composite propellants used in solid-fuel rockets commonly consists of an oxidizer, the most used being ammonium perchlorate, fuels such as powdered aluminum, compounds that control the burn rate (catalysts or inhibitors), and various other additives [...]
Sorin-Viorel Dolana   +8 more
doaj   +1 more source

Fabrication of alginate-based microspheres with cellular structure for tuning ammonium dinitramide performance

open access: yesDefence Technology, 2023
Recently, an emerging category green of energetic material ammonium dinitramide (ADN) has exhibited promising application in propellants due to its outstanding merits in energy release and environmental friendliness.
Dun-ju Wang   +6 more
doaj   +1 more source

Burn rate of a novel boron-AN-water green solid propellant

open access: yesFirePhysChem, 2022
A novel composition of green solid rocket propellant has been suggested and examined. Boron powder was chosen to serve as fuel, for its very high energetic potential, which exceeds that of other common metals, as well as that of fossil fuels.
Adi Zamostianu, Yinon Yavor
doaj   +1 more source

An overview on properties, thermal decomposition, and combustion behavior of ADN and ADN based solid propellants

open access: yesDefence Technology, 2018
Ammonium dinitramide [NH4N(NO2)2, ADN] is considered as a possible replacement for ammonium perchlorate (AP) in nearly all kind of solid rocket propulsions in the coming future. The reason to use ADN instead of AP in solid rocket propulsion is because of
Pratim Kumar
doaj   +1 more source

Home - About - Disclaimer - Privacy