Results 21 to 30 of about 447,130 (281)

Nonlinear Structure of the Diffusing Gas-Metal Interface in a Thermonuclear Plasma [PDF]

, 2014
This Letter describes the theoretical structure of the plasma diffusion layer that develops from an initially sharp gas-metal interface. The layer dynamics under isothermal and isobaric conditions is considered so that only mass diffusion (mixing ...
Dodd, Evan S., Molvig, Kim, Vold, Erik L., Wilks, Scott C.   +3 more
core   +1 more source

Gas diffusion layer from Binchotan carbon and its electrochemical properties for supporting electrocatalyst in fuel cell

AIMS Energy, 2022
The gas diffusion layer (GDL) in the fuel cell has been made from carbon dispersion electrochemically deposited from binchotan. We prepared GDL by spraying the ink on the surface of the conductive paper.
Nirwan Syarif, Dedi Rohendi, Ade Dwi Nanda , M. Try Sandi , Delima Sukma Wati Br Sihombing   +4 more
doaj   +1 more source

Two-phase flow dynamics in a gas diffusion layer - gas channel - microporous layer system

Journal of Power Sources, 2020
We have shown in our former study [1] that ordered microstructures can improve the effective electrical conductivity and permeability in the gas diffusion layer (GDL). However, the effect of ordered structures on the dynamics of gas-water dynamics in porous layers of fuel cells was not studied.
Niblett D, Mularczyk A, Niasar V, Eller J, Holmes S   +4 more
openaire   +3 more sources

Particle Stirring in Turbulent Gas Disks: Including Orbital Oscillations [PDF]

, 2007
We describe the diffusion and random velocities of solid particles due to stochastic forcing by turbulent gas. We include the orbital dynamics of Keplerian disks, both in-plane epicycles and vertical oscillations. We obtain a new result for the diffusion
Adachi, Andrew N. Youdin, Balbus, Barranco, Binney, Carballido, Carballido, Chamberlain, Chandrasekhar, Chapman, Chavanis, Csanady, Cuzzi, de la Fuente Marcos, Dominik, Dubrulle, Dubrulle, Fan, Fromang, Fromang, Gammie, Goldreich, Hawley, Hayashi, Hinze, Hogan, Hubbard, Johansen, Johansen, Johansen, Johansen, Johansen, Klahr, Klahr, Landau, Lin, Lithwick, Lynden-Bell, Markiewicz, Mizuno, Nakagawa, Ormel, Rincon, Saffman, Safronov, Schräpler, Sekiya, Semenov, Shen, Stevenson, Taylor, Toomre, Turner, Völk, Völk, Ward, Weidenschilling, Weidenschilling, Yoram Lithwick, Youdin, Youdin, Youdin, Youdin, Youdin   +63 more
core   +2 more sources

Pore-Scale Lattice Boltzmann Simulation of Gas Diffusion–Adsorption Kinetics Considering Adsorption-Induced Diffusivity Change

Energies, 2020
The diffusion–adsorption behavior of methane in coal is an important factor that both affecting the decay rate of gas production and the total gas production capacity.
Zhigao Peng, Shenggui Liu, Yingjun Li, Zongwei Deng, Haoxiong Feng   +4 more
doaj   +1 more source

Structural-phase transformations during nitro oxidation of steels and surface properties [PDF]

E3S Web of Conferences, 2023
Structural and phase changes in the surface diffusion layer during gas nitriding of steel were studied, with the formation of a crystallographic structure of the nitride layer for subsequent oxidation in water vapor.
Eshkabilov Kholikul
doaj   +1 more source

Disentangling Turbulent Gas Diffusion from Non-diffusive Transport in the Boundary Layer [PDF]

Boundary-Layer Meteorology, 2021
AbstractAn analysis based on the law of linear momentum conservation demonstrates unequivocally that the mass fraction is the scalar whose gradient determines gas diffusion, both molecular and turbulent. It illustrates sizeable errors in previous micrometeorological definitions of the turbulent gas flux based on fluctuations in other scalars such as ...
Andrew S. Kowalski, Penélope Serrano-Ortiz, Gabriela Miranda-García, Gerardo Fratini   +3 more
openaire   +2 more sources

Transient Performance Behavior of Proton Exchange Membrane Fuel Cell by Configuration of Membrane and Gas Diffusion Layer

Journal of Thermal Science and Technology, 2010
A single-phase, fully three-dimensional transient numerical simulation was performed to analyze the dynamic response of a proton exchange membrane fuel cell (PEMFC) with single serpentine flow channels. .
Sang Soon HWANG, Sang Seok HAN, Pil Hyong LEE, Bong Il PARK   +3 more
doaj   +1 more source

Effect of the Nitrogen Diffusion Layer Formed by Gas Blow Induction Heating Nitriding on Wear Resistance and Fatigue Properties of Titanium Alloy

Proceedings, 2018
The effect of the nitrogen diffusion layer formed by gas blow induction heating nitriding on the wear resistance and the fatigue properties of a titanium alloy was investigated.
Shogo Takesue, Shoichi Kikuchi, Hiroyuki Akebono, Jun Komotori   +3 more
doaj   +1 more source

Measuring the through-plane and in-plane oxygen apparent diffusion coefficients in the gas diffusion layer

Frontiers in Energy Research, 2023
Accurately predicting oxygen mass transport resistance and current distribution in fuel cells requires significant knowledge of oxygen diffusion coefficients in both in-plane and through-plane directions.
Keguang Yao, Keguang Yao, Tiehan Long, Yajun Wang, Xiao-Zi Yuan, Yao Yao, Haijiang Wang, Haijiang Wang   +7 more
doaj   +1 more source