An optimized microstructure to minimizing in-plane and through-plane pressure drops of fibrous materials: Counter-intuitive reduction of gas diffusion layer permeability with porosity

Sadeghifar, Hamidreza1,2,3,4,5,6

2018-05

10.1016/j.jpowsour.2018.03.028

JOURNAL OF POWER SOURCES   影响因子和分区

0378-7753

1873-2755

The present study experimentally investigates the realistic functionality of in-plane and through-plane pressure drops of layered fibrous media with porosity, fiber diameter, fiber spacing, fiber-fiber angles and fiber-flow angles. The study also reveals that pressure drop may increase with porosity and fiber diameter under specific circumstances. This counter-intuitive point narrows down the validity range of widely-used permeability-porosity-diameter models or correlations. It is found that, for fibrous materials, the most important parameter that impacts the in-plane pressure drop is not their porosities but the number of fibers extended in the flow direction.

Fibrous porous media In-plane and through-plane pressure drops Permeability Fiber diameter Fiber spacing Fiber angle

SCI ; EI

英语

通讯

Canada Research Chairs[] ; University of Victoria[] ; Department of Mechanical Engineering, College of Engineering, Michigan State University[] ; Simon Fraser University[]

Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science

Chemistry, Physical ; Electrochemistry ; Energy & Fuels ; Materials Science, Multidisciplinary

WOS:000430779400013

ELSEVIER SCIENCE BV

20181204922072

Diffusion in gases ; Drops ; Gas permeability ; Mechanical permeability ; Microstructure ; Porosity ; Porous materials ; Pressure drop

Physical Properties of Gases, Liquids and Solids:931.2 ; Materials Science:951

MATERIALS SCIENCE

Web of Science

1.Simon Fraser Univ, LAEC, Sch Mechatron Syst Engn, Surrey, BC V3T 0A3, Canada
2.Univ Victoria, Dept Mech Engn, Inst Integrated Energy Syst IESVic, Victoria, BC V8W 3P6, Canada
3.Univ Victoria, Dept Mech Engn, Energy Syst & Transport Phenomena Lab ESTP, Victoria, BC V8W 3P6, Canada
4.Univ British Columbia, Dept Chem & Biol Engn, 2360 East Mall, Vancouver, BC V6T 1Z3, Canada
5.Vancouver Int CleanTech Res Inst Inc, 4475 Wayburne Dr Suite 310, Bumaby, BC V5G 4X4, Canada
6.Southern Univ Sci & Technol China SUSTech, Dept Mat Sci & Engn, 1088 Xueyuan Ave, Shenzhen 518055, Guangdong, Peoples R China

Sadeghifar, Hamidreza. An optimized microstructure to minimizing in-plane and through-plane pressure drops of fibrous materials: Counter-intuitive reduction of gas diffusion layer permeability with porosity[J]. JOURNAL OF POWER SOURCES,2018,385:100-113.

Sadeghifar, Hamidreza.(2018).An optimized microstructure to minimizing in-plane and through-plane pressure drops of fibrous materials: Counter-intuitive reduction of gas diffusion layer permeability with porosity.JOURNAL OF POWER SOURCES,385,100-113.

Sadeghifar, Hamidreza."An optimized microstructure to minimizing in-plane and through-plane pressure drops of fibrous materials: Counter-intuitive reduction of gas diffusion layer permeability with porosity".JOURNAL OF POWER SOURCES 385(2018):100-113.