Results 101 to 110 of about 151,235 (368)

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

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]

, 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., Dowler, W. L., Shafer, J. I., Strand, L. D.   +3 more
core   +1 more source

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

, 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, Chemam, R, Dkhissi, Ahmed, Esteve, D, Houabes, M, Mahi, D, Metatla, A, Metatla, N, Ouari, B, Yahiaoui, R   +9 more
core   +2 more sources

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

Advanced 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, Junhu Zhou, Ziqian Wu, John X. J. Zhang   +3 more
wiley   +1 more source

Investigation of ammonium polyphosphate dilution with ground eggshells and lignin through the study of natural fibre composite flammability

Fire and Materials, Volume 47, Issue 1, Page 28-50, January/February 2023., 2023
Summary The interactions of Calcium carbonate (e.g., eggshell powder) and Lignin with ammonium polyphosphate (APP) when used as fire retardants were investigated. Three mixing ratios ‐ 1:3, 1:1, and 3:1, were used with natural fibre reinforced composites containing a hemp mat and an epoxy matrix manufactured using a light resin transfer moulding (L‐RTM)
Asanka P. Basnayake, Juan P. Hidalgo, Byron Villacorta, Kameron G. Dunn, Michael T. Heitzmann   +4 more
wiley   +1 more source

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

5th 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  

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

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., Pieper, Jerry L., Walker, Richard E.   +2 more
core   +1 more source

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

Advanced 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, Rabin Dahal, Moses D. Ashie, Shanna Marie M. Alonzo, Binod Raj KC, Bishnu Prasad Bastakoti   +5 more
wiley   +1 more source

Experimental and Computational Studies of a Prototype Combustion Chamber for a Power Steam Boiler with a Vertical Precessing Vortex [PDF]

Problems of the Regional Energetics
Increasing the efficiency of using fossil fuels at thermal power plants is an urgent task. This problem arises most acutely during the operation of pulverized coal power boilers using flare fuel combustion technologies.
Boiko E.A., Semenov I.I., Lebedev K.V., Kulichkin A.P.   +3 more
doaj   +1 more source

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

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