Results 111 to 120 of about 153,487 (368)

A MEMS-based solid propellant microthruster array for space and military applications [PDF]

open access: yes, 2015
Since combustion is an easy way to achieve large quantities of energy from a small volume, we developed a MEMS based solid propellant microthruster array for small spacecraft and micro-air-vehicle applications.
Chaalane, A   +9 more
core   +2 more sources

Doped Zinc Oxide‐Based Piezoelectric Devices for Energy Harvesting and Sensing

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
This review provides a comprehensive overview of material properties, synthesis methods, and characterization techniques of doped ZnO, emphasizing the impact of doping on its structural and functional attributes. It highlights key findings, identifies knowledge gaps, and proposes future research directions to optimize doped ZnO for energy harvesting ...
Congran Jin   +3 more
wiley   +1 more source

The N.A.C.A. Combustion Chamber Gas-sampling Valve and Some Preliminary Test Results [PDF]

open access: yes
A gas sampling valve of the inertia-operated type was designed for procuring samples of the gases in the combustion chamber of internal combustion engines at identical points in successive cycles so that the analysis of the gas samples thus procured may ...
Buckley, E C, Spanogle, J A
core   +1 more source

Solid propellant rocket motor [PDF]

open access: yes, 1973
The characteristics of a solid propellant rocket engine with a controlled rate of thrust buildup to a desired thrust level are discussed. The engine uses a regressive burning controlled flow solid propellant igniter and a progressive burning main solid ...
Behm, J. W.   +3 more
core   +1 more source

Recent Progress on Cerium Oxide‐Based Nanostructures for Energy and Environmental Applications

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
This review covers significant aspects, from CeO2's fundamental properties and synthesis methods to specific applications and emerging trends. With unique features such as redox reactivity, biocompatibility, and high oxygen storage, CeO2 is an excellent catalyst for water splitting, CO2 conversion, energy storage, and remediating environmental ...
Schindra Kumar Ray   +5 more
wiley   +1 more source

Heat Transfer Correlations on Combustion Chamber Surface of Diesel Engine - Experimental Work

open access: yesInternational Journal of Automotive Science and Technology, 2018
Design and control of recently developing engines have much important towards better fuel economy and reduction in exhaust emissions from an engine.
Amit Kumar   +3 more
doaj   +1 more source

Investigate auto-ignition of stoichiometric methane-air mixture [PDF]

open access: yes5th international Fule and Combustion Conference, Aug 2015, Tehran, Iran. 2015, 2017
Auto-ignition process of stoichiometric mixture of methane-air is investigated using detailed chemical kinetics in a single-zone combustion chamber. Effect of initial temperature on start of combustion (SOC). The Arrhenius expression for the specific reaction rate are calculated and auto-ignition was evaluated based on the species fractions and ...
arxiv  

The N.A.C.A. Apparatus for Studying the Formation and Combustion of Fuel Sprays and the Results from Preliminary Tests [PDF]

open access: yes
Described here is an apparatus for studying the formation and combustion of fuel sprays under conditions closely simulating those in a high speed compression-ignition engine.
Rothrock, A M
core   +1 more source

Combustor design and analysis using the Rocket Combustor Interactive Design (ROCCID) methodology [PDF]

open access: yes
The ROCket Combustor Interactive Design (ROCCID) Methodology is a newly developed, interactive computer code for the design and analysis of a liquid propellant rocket combustion chamber.
Klem, Mark D.   +2 more
core   +1 more source

Fuel combustor [PDF]

open access: yes, 1977
A fuel combustor comprises a chamber with air and fuel inlets and a combination gas outlet. The fuel is supplied to a vaporization zone and fuel and air are mixed in a pair of mixing chambers, each exemplified by a swirl can.
Marek, C. J.
core   +1 more source

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