Results 41 to 50 of about 151,235 (368)
Advanced Engineering Materials, EarlyView.Refractory high‐entropy alloys have attracted substantial attention for future ultrahigh‐temperature structural applications. Here the progression of key phase transformations in AlMo0.5NbTa0.5TiZr is established and correlated to the mechanical performance, highlighting the importance of the B2 phase.
George J. Wise +5 more
wiley +1 more source
Shanghai Jiaotong Daxue xuebaoBased on the principle of the rich-burn/quench/lean-burn (RQL) technology, a low emission combustion chamber for gas turbine was designed. The effects of different heights of quenching structure and distribution ratios of the air flow on the flow field ...
HUI Lei, LIU Aiguo, WU Xiaoqu, ZHANG Yunjie, ZENG Wen
doaj +1 more source
Rekayasa Mesin, 2022 The utilization of briquettes as a source of electricity generation is still low due to the briquette characteristics that have high moisture content.
Erlanda A Pane +3 more
doaj +1 more source
Combustion Dynamics of Ten-injector Rocket Engine Using Flamelet Progress Variable [PDF]
arXiv, 2022 The combustion instability is investigated computationally for a ten-injector rocket engine using the compressible flamelet progress variable (FPV) model and detached eddy simulation (DES). An C++ code is developed based on OpenFOAM 4.1 to apply the combustion model. Flamelet tables are generated for methane/oxygen combustion at the background pressure
arxiv
Bayesian models for the determination of resonant frequencies in a DI diesel engine [PDF]
, 2011 A time series method for the determination of combustion chamber resonant frequencies is outlined. This technique employs the use of Markov-chain Monte Carlo (MCMC) to infer parameters in a chosen model of the data.
Bodisco, Tim +3 more
core +2 more sources
Advanced Functional Materials, EarlyView.Silver nanowire‐decorated silicon nanomembrane (AgNW‐SiNM) wireless wearable gas sensor exhibits a high response of ≈1.83 upon exposure to 10 ppm NH3. A stacked structure of the AgNW‐SiNM gas sensor with a flexible Joule heater improves the recovery rate after gas exposure.
Jongwoon Shin +8 more
wiley +1 more source
Simulation of Combustion Air Flow in the Gasification Biomass Boiler
MATEC Web of Conferences, 2018 The article deals with the optimization of biomass combustion in a small heat source by means of an optimal distribution of combustion air. The uneven distribution of combustion air has been observed in certification tests and in real operation of used ...
Patsch Marek, Pilát Peter
doaj +1 more source
Pulsed instabilities in combustion chambers [PDF]
31st Joint Propulsion Conference and Exhibit, 1995 A pulsed or "triggered" instability occurs when pressure oscillations develop in a linearly stable combustion system after being subjected to a sufficiently large disturbance. Such true nonlinear instabilities usually occur as subcritical bifurcations in dynamical systems theory.
G. Swenson +2 more
openaire +2 more sources
Optical Hydrogen Sensing Materials for Applications at Sub‐Zero Temperatures
Advanced Functional Materials, EarlyView.This study demonstrates the viability of optical hydrogen sensors at temperatures as low as −60°C. Using advanced metal hydride materials, the sensors detect hydrogen with high sensitivity, speed, and stability across a wide range of concentrations. These findings open doors for safe hydrogen detection in extreme cold, enabling applications in aviation,
Ziqing Yuan +4 more
wiley +1 more source
Numerical study of ignition and combustion of hydrogen-enriched methane in a sequential combustor [PDF]
arXiv, 2022 Ignition and combustion behavior in the second stage of a sequential combustor are investigated numerically at atmospheric pressure for pure CH4 fueling and for a CH4/H2 fuel blend in 24:1 mass ratio using Large Eddy Simulation (LES). Pure CH4 fueling results in a turbulent propagating flame anchored by the hot gas recirculation zone developed near the
arxiv