Results 21 to 30 of about 9,291 (187)
Experimental Thrust and Specific Impulse Analysis of Pulsed Detonation Combustor
Applied SciencesDetonation combustion represents a significant advancement in efficiency over traditional deflagration methods. This paper presents a Pulsed Detonation Combustor (PDC) model that is designed with an aerodynamic mixing chamber featuring Hartmann–Sprenger ...
Andrei Vlad Cojocea +3 more
doaj +1 more source
Journal of Marine Science and EngineeringHydrogen fuel presents a promising pathway for achieving long-term decarbonization in the maritime sector. However, its use in diesel engines introduces challenges due to high reactivity, leading to increased NOx emissions and combustion instability. The
Panagiotis Karvounis +3 more
doaj +1 more source
Multistage combustion and reaction coupling of micro-sized aluminum particles in hot steam
Applications in Energy and Combustion ScienceAluminum particles, characterized by their high energy density and favorable reactivity, exhibit significant potential for clean energy applications and advanced propulsion systems.
Hongming Ding +8 more
doaj +1 more source
Results in EngineeringThe aviation sector is projected to account for over a quarter of global greenhouse gas emissions in the coming decades. Current reliance on kerosene-fueled turbofan engines leads to significant fuel losses, low exergy efficiency, and severe ...
Muhammad Waleed Khan +5 more
doaj +1 more source
Mg/Zn Janus Micromotors For Periodontitis Treatment And Mechanism Study
International Dental JournalAim or purpose: This study explores the potential of Mg/Zn Janus micromotors for programmed periodontitis treatment by leveraging zinc ions' glycolysis-inhibitory effects and hydrogen gas-mediated anti-inflammatory actions in the inflammatory ...
Guo Yanru +3 more
doaj +1 more source
Minimum energy, liquid hydrogen supersonic cruise vehicle study [PDF]
The potential was examined of hydrogen-fueled supersonic vehicles designed for cruise at Mach 2.7 and at Mach 2.2. The aerodynamic, weight, and propulsion characteristics of a previously established design of a LH2 fueled, Mach 2.7 supersonic cruise ...
Brewer, G. D., Morris, R. E.
core +1 more source
TechnologiesPressure-gain combustion (PGC) represents a promising alternative to conventional propulsion systems for interplanetary travel due to its key advantages, including higher thermodynamic efficiency, increased specific impulse, and more compact engine ...
Andrei Vlad Cojocea +6 more
doaj +1 more source
Future long-range transports: Prospects for improved fuel efficiency [PDF]
A status report is provided on current thinking concerning potential improvements in fuel efficiency and possible alternate fuels. Topics reviewed are: (1) historical trends in airplane efficiency; (2) technological opportunities including supercritical ...
Alford, W. J., Jr. +2 more
core +1 more source
11D58MF combined propulsion unit operating on oxygen-hydrogen fuel for an average-sized booster
VESTNIK of Samara University. Aerospace and Mechanical Engineering, 2014 This paper describes the expediency of creation a combined propulsion unit with oxygen-hydrocarbon fuel for advanced upper stage of the middle class rockets based on the multifunctional liquid-propellant rocket engine 11D58MF. The appearance of the upper stage with 11D58MF engine, comparative analysis of the developing and exploitation upper stages are
D. S. Lupyak +4 more
openaire +2 more sources
EnergiesCombustion through detonation marks an important leap in efficiency over standard deflagration methods. This research introduces a Pulsed Detonation Combustor (PDC) model that uses Hydrogen as fuel and Oxygen as an oxidizer, specifically targeting carbon-
Andrei Vlad Cojocea +3 more
doaj +1 more source