Results 41 to 50 of about 82,402 (301)

Instability of lean H2-O2-CO2 premixed flames on a flat burner

Nihon Kikai Gakkai ronbunshu, 2015
Global warming and air pollution mainly caused by emissions of CO2 and NOx are serious problems. We focus on a lean H2-O2 premixed flame because H2-O2 premixed flame emits no CO2 and NOx.
Toshiyuki KATSUMI, Takahiro ENDO, Yuki NAKATANI, Satoshi KADOWAKI   +3 more
doaj   +1 more source

The effects of unburned-gas temperature on intrinsic instability of premixed flames at high Lewis numbers under the adiabatic and non-adiabatic conditions

Mechanical Engineering Journal, 2017
We treated numerically premixed flames at high Lewis numbers under the adiabatic and non-adiabatic conditions to elucidate the effects of unburned-gas temperature on intrinsic instability.
Thwe Thwe Aung, Toshiyuki KATSUMI, Satoshi KADOWAKI   +2 more
doaj   +1 more source

Cellular structures of laminar lean premixed H2/CH4/air polyhedral flames

Applications in Energy and Combustion Science, 2023
Fundamental studies on the effects of differential diffusion of hydrogen (H2) on flame structure are motivated as the high diffusivity of H2 presents challenges for the modeling and optimization of combustion systems.
Shuguo Shi, Adrian Breicher, Johannes Trabold, Sandra Hartl, Robert S. Barlow, Andreas Dreizler, Dirk Geyer   +6 more
doaj   +1 more source

Numerical investigation on unstable behaviors of cellular premixed flames at low Lewis numbers based on the diffusive-thermal model and compressible Navier-Stokes equations

Journal of Thermal Science and Technology, 2018
Two dimensional unsteady calculations of reactive flows were performed in large domain to investigate the unstable behaviors of cellular premixed flames at low Lewis numbers based on the diffusive-thermal (D-T) model and compressible Navier-Stokes (N-S ...
Thwe Thwe Aung, Satoshi KADOWAKI, Ryutaro HINO   +2 more
doaj   +1 more source

Selective measurement of NAPE-PLD activity via a PLA1/2-resistant fluorogenic N-acyl-phosphatidylethanolamine analog

Journal of Lipid Research, 2022
N-acyl-phosphatidylethanolamine (NAPE)-hydrolyzing phospholipase D (NAPE-PLD) is a zinc metallohydrolase enzyme that converts NAPEs to bioactive N-acyl-ethanolamides.
Jonah E. Zarrow, Jianhua Tian, Brendan Dutter, Kwangho Kim, Amanda C. Doran, Gary A. Sulikowski, Sean S. Davies   +6 more
doaj   +1 more source

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

Advanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann, René Gustus, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +3 more
wiley   +1 more source

High hydrogen content syngas fuel burning in lean premixed spherical flames at elevated pressures: Effects of preferential diffusion [PDF]

, 2016
This study addresses the effects of preferential diffusion on flame structure and propagation of high hydrogen content (HHC) turbulent lean premixed hydrogen-carbon monoxide syngas flames at elevated pressures.
Luo, KH, Ranga Dinesh, KKJ, Shalaby, H, Thévenin, D, van Oijen, JA   +4 more
core   +1 more source

Multifunctional Crushing and Piezoresistive Self‐Sensing in Conductive Epoxy/CNT‐Coated Polyetherimide TPMS Lattices

Advanced Engineering Materials, EarlyView.
This study reports lightweight polyetherimide triply periodic minimal surfaces lattices coated with carbon nanotube‐reinforced epoxy that combine mechanical robustness with self‐sensing. The conformal coating enhances stiffness, strength and energy absorption while enabling reliable strain monitoring.
A. Triay, J. Schneider, P. Harrison, S. Kumar   +3 more
wiley   +1 more source

The effects of unburned-gas temperature on the characteristics of cellular premixed flames generated by hydrodynamic and diffusive-thermal instabilities in large space: fractal dimension of cellular-flame fronts

Journal of Thermal Science and Technology, 2017
The effects of unburned-gas temperature on the characteristics of cellular premixed flames generated by hydrodynamic and diffusive-thermal instabilities were numerically investigated.
Satoshi KADOWAKI, Taisuke WASHIO, Thwe Thwe Aung, Wataru YAMAZAKI, Toshiyuki KATSUMI, Hideaki KOBAYASHI   +5 more
doaj   +1 more source

Instabilities and soot formation in high pressure explosion flames [PDF]

, 2009
Flame instabilities, cellular structures and soot formed in high pressure, rich, spherically expanding iso-octane-air flames have been studied experimentally using high speed Schlieren cinematography, OH fluorescence, and laser induced incandescence ...
Lockett, R. D.
core