Results 71 to 80 of about 1,071,921 (389)

Combustion chamber struts can be effectively transpiration cooled [PDF]

open access: yes, 1966
Vapor-deposited sintering technique increases the feasible temperature range of transpiration-cooled structural members in combustion chambers. This technique produces a porous mass of refractory metal wires around a combustion chamber structural member.
Palmer, G. H.
core   +1 more source

Tuning Active Hydrogen on Reconstructed RuO2/Co(OH)2 Catalysts for Selective Ammonia Synthesis

open access: yesAdvanced Materials, EarlyView.
A combined approach of precatalyst design and electrolyte engineering is employed to develop highly active, selective, and stable catalysts for electrochemical nitrate reduction. In alkaline media, the reconstructed RuO2/Co(OH)2 catalyst demonstrates impressive performance in ammonia synthesis, rechargeable Zn‐NO3− battery, and the remediation of ...
Anquan Zhu   +12 more
wiley   +1 more source

Effect of structural parameters of active pre-chamber on ammonia/hydrogen premixed combustion process: A numerical investigation

open access: yesCase Studies in Thermal Engineering
The development of zero-carbon fuels is of great significance for reducing carbon emissions. Using an ammonia/hydrogen mixture as fuel, the combustion in engine through an active pre-chamber has a good effect on reducing carbon emissions.
Zhe Kang   +4 more
doaj   +1 more source

Hot Test Studies in a Spark Ignited Vortex Combustion Chamber

open access: yesChemical Engineering Transactions, 2018
Hot tests are performed in a vortex combustion chamber using gaseous oxygen and gaseous hydrogen as the propellants by varying their mixture ratios, and nozzle throat diameter.
Rajesh Thalappil Naduvilethil   +2 more
doaj   +1 more source

Research and Design an Experimental Model for the Determination of Deposits Formation Mechanism in the Combustion Chamber

open access: yesInternational Journal on Advanced Science, Engineering and Information Technology, 2019
One of the important researches on fuel use in diesel engines is the basic study of deposits formation in engine combustion chambers. The process of creating deposits in the engine combustion chamber is a complex phenomenon causing many different ...
V. Pham
semanticscholar   +1 more source

Influence of Micropillar Height Modulation on Droplet Evaporation and Wetting State Transitions

open access: yesAdvanced Materials Interfaces, EarlyView.
Controlling droplet evaporation dynamics is crucial across many fields. Here, it demonstrates laser‐fabricated polymer micropillar arrays with tailored height variations to regulate evaporation behavior. While all arrays exhibit superhydrophobic wetting, their distinct height profiles effectively slow evaporation and alter evaporation modes ...
Prabuddha De Saram   +2 more
wiley   +1 more source

Lean combustion and emission performance of a gasoline direct injection engine with active pre-chamber

open access: yesAdvances in Mechanical Engineering, 2022
Pre-chamber jet ignition technology can effectively improve flame propagation speed and in-cylinder combustion rate, so it is conducive to the improvement of thermal efficiency and fuel economy.
Li Zhang   +5 more
doaj   +1 more source

Stagnation point reverse flow combustor [PDF]

open access: yes, 2008
A method for combusting a combustible fuel includes providing a vessel having an opening near a proximate end and a closed distal end defining a combustion chamber. A combustible reactants mixture is presented into the combustion chamber. The combustible
Jagoda, Jechiel   +4 more
core   +1 more source

One Dimensional Metal Oxide Semiconductor Nanotransistors

open access: yesAdvanced Materials Technologies, EarlyView.
This review assesses one dimensional metal oxide NW‐FETs as promising alternatives to conventional transistors. It explores how advances in architecture, material composition, and fabrication processes expand device capabilities. Emphasis is placed on novel gate configurations, different metal oxide nanowires, and post‐treatment methods, which ...
Mariana D. Cortinhal   +2 more
wiley   +1 more source

CFD Study on Hydrogen-Air Premixed Combustion in a Micro Scale Chamber [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2010
This paper reports a CFD modeling study to investigate the hydrogen-air mixture combustion in a micro scale chamber. Nine species with nineteen reversible reactions were considered in the premixed combustion model.
Sayed Reza Shabanian   +3 more
doaj  

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