Results 1 to 10 of about 732,470 (243)

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 performance evaluation of the laser ignition device for micro thruster systems

open access: yesMaterials & Design
To meet the requirements for micro thruster system in microsatellites and solve the integration problems caused by large laser ignition devices, this study developed a miniature laser ignition device using a 2 × 2 VCSEL(vertical-cavity surface-emitting ...
Jianming Zhang   +4 more
doaj   +1 more source

Preliminary Hot-Fire Test of Ammonium Dinitramide-Based Thrusters Based on Electrical Ignition

open access: yesSpace: Science & Technology
Space sustainability and green space activities are advanced space propulsion concepts developed in the 21st century. Ammonium dinitramide (ADN)-based liquid space thrusters are typical representatives of high-performance green propulsion.
Jin-Ze Wu   +5 more
doaj   +1 more source

Ignition and combustion characteristics of micro/nano-Al and Al@Ni alloy powders at elevated pressures

open access: yesCase Studies in Thermal Engineering
Nanosizing and alloying of aluminum (Al) promisingly improve ignition and combustion performance of Al-based propellants. To aim this, lased-induced ignition and combustion characteristics of micro/nano-Al and aluminum@nickel (Al@Ni) alloy powders at ...
Chaojie Feng   +5 more
doaj   +1 more source

Investigation of the interaction of the MILD regime with HiTAC and no-combustion regimes in combustion region diagrams

open access: yesFrontiers in Energy Research
Moderate or intense low-oxygen dilution combustion is vital for reducing emissions. Recent advancements have introduced regime diagrams for various reactant mixtures, highlighting no-combustion, Moderate or intense low-oxygen dilution, and high ...
M. Srinivasarao   +2 more
doaj   +1 more source

Effects of initial density and pulse width on damage evolution and ignition response of PBX under multi-pulse loading

open access: yesMaterials & Design
Ignition of polymer bonded explosives (PBXs) may occur under impact loading, while the ignition mechanism remains unclear because of the non-uniformity of PBXs and the complexity of loading conditions.
Fengwei Guo   +6 more
doaj   +1 more source

Improving the fire ignition delay of bamboo (Bambusa spinosa Roxb.) via plasma treatment

open access: yesMaterials Letters: X
Fire safety is a critical concern in the use of combustible materials as improving ignition delay and retardancy can reduce fire propagation, allow time for emergency response, and safeguard life and property.
Bryndell J. Alcantara   +2 more
doaj   +1 more source

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