Results 1 to 10 of about 2,175 (160)

Transmissive Mode Laser Micro-Ablation Performance of Ammonium Dinitramide-Based Liquid Propellant for Laser Micro-Thruster [PDF]

open access: yesMicromachines, 2023
The transmissive mode laser micro-ablation performance of near-infrared (NIR) dye-optimized ammonium dinitramide (ADN)-based liquid propellant was investigated in laser plasma propulsion using a pulse YAG laser with 5 ns pulse width and 1064 nm ...
Baosheng Du   +7 more
doaj   +2 more sources

Experimental Research on Microwave Ignition and Combustion Characteristics of ADN-Based Liquid Propellant [PDF]

open access: yesMicromachines, 2022
Microwave ignition has attracted much attention due to its advantages of reliable ignition, large ignition area and cold-start capability. In this paper, the experimental method is used to explore the ignition ability of the microwave device to ADN-based
Jiannan Shen   +3 more
doaj   +2 more sources

Cryogenic helium subsurface pressurization in terrestrial and low-gravity: experiments and flow visualization [PDF]

open access: yesnpj Microgravity
Pressurization of cryogenic propellant storage tanks is required for propellant thermodynamic conditioning and for enabling propellant transfer from a supply tank to another tank or an engine.
Jinze Yu   +5 more
doaj   +2 more sources

Theoretical characterization of mesoscopic structure of PBT propellant based on liquid film thickness [PDF]

open access: yesScientific Reports
Solid propellant slurry is a high solid content suspension, and its rheological properties are very complex. In order to solve the problem that it is hard to estimate the process propertie of 3,3-bis(azidomethyl) oxetane-tetrahydrofuran copolyether (PBT)
Ye-wei Shen   +8 more
doaj   +2 more sources

Flexible Three-Dimensional Stress Sensor for Embedded Monitoring of Solid Rocket Propellant [PDF]

open access: yesMicromachines
Solid rocket motors (SRMs) play a pivotal role in space exploration owing to their reliability and high thrust-to-weight ratios. SRM propellant health monitoring is in critical demand owing to the complex operational scenarios throughout the entire life ...
Yaoguang Shi   +3 more
doaj   +2 more sources

Liquid Carbon-Boron Cluster Additives for Mixed Amine-50 [PDF]

open access: yesMolecules
Boron-containing compounds, known for their high calorific value, can significantly enhance the energy density of traditional liquid propellants. Through precise chemical modification of the C-H bonds in ortho-carborane, a novel liquid cluster material ...
Xiaogang Mu   +3 more
doaj   +2 more sources

Dynamic Simulation of Propellant Utilization System in Propellant Tanks of a Liquid Propellant Engine [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2011
In this article the Propellant Utilization system (PU) has been simulated. The objective of this system is to adjust the consumption ratio of the propellants in order to ensure the minimum propellant residuals at engine’s shutdown phase.
M. Naderi Tabrizi   +2 more
doaj   +1 more source

Investigation of Effect of Rheological Behavior of Gelled Propellant on Atomization Characteristics of Swirl Injector [PDF]

open access: yesفناوری در مهندسی هوافضا, 2021
The Gelled propellants have a promising future for aerospace applications because of possessing the advantages of both solid and liquid propellants. A gel propellant is a liquid propellant whose rheological properties have changed by the addition of ...
Ali Saberi moghaddam   +2 more
doaj   +1 more source

Experimental Study on Thermal and Catalytic Decomposition of a Dual-Mode Ionic Liquid Propellant [PDF]

open access: yesE3S Web of Conferences, 2021
With the increasing of space activities and people’s awareness of environmental protection, it is necessary to develop a new non-toxic space propulsion system with high performance. Hydroxylammonium nitrate (HAN)/1-ethyl-3-methyl-imidazolium ethylsulfate(
Gao He   +3 more
doaj   +1 more source

An improved thermal jet for the propellant launching system

open access: yesCase Studies in Thermal Engineering, 2023
This work is focused to study the energy release and flow behavior of liquid propellant during internal ballistics cycle of liquid launching system on the base of the thermal gas jet.
Xiaochun Xue, Yonggang Yu
doaj   +1 more source

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