Browsing Chemical Engineering by Author "Ioannidis, Marios"
Now showing items 1-7 of 7
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Direct measurement of the capillary pressure characteristics of water-air-gas diffusion layer systems for PEM fuel cells
Gostick, Jeffrey Thomas; Ioannidis, Marios A.; Fowler, Michael W.; Pritzker, Mark D. (Elsevier, 2008-10-01)A method and apparatus for measuring the relationship between air-water capillary pressure and water saturation in PEMFC gas diffusion layers is described. Capillary pressure data for water injection and withdrawal from ... -
Impact of Liquid Water on Reactant Mass Transfer in PEM Fuel Cell Electrodes
Gostick, Jeffrey Thomas; Ioannidis, Marios A.; Pritzker, Mark D.; Fowler, Michael W. (Electrochemical Society, 2010)The breakthrough conditions (capillary pressure and liquid water saturation) in a fibrous gas diffusion medium (GDM) used in polymer electrolyte membrane (PEM) fuel cell electrodes have been studied experimentally by two ... -
In-plane and through-plane gas permeability of carbon fiber electrode backing layers
Gostick, Jeffrey Thomas; Fowler, Michael W.; Pritzker, Mark D.; Ioannidis, Marios A.; Behra, Leya M. (Elsevier, 2006-11-08)The absolute gas permeability of several common gas diffusion layer (GDL) materials for polymer electrolyte membrane fuel cells was measured. Measurements were made in three perpendicular directions to investigate anisotropic ... -
On the role of the microporous layer in PEMFC operation
Gostick, Jeffrey Thomas; Ioannidis, Marios A.; Fowler, Michael W.; Pritzker, Mark D. (Elsevier, 2009-03-01)The condition of liquid water breakthrough at the cathode of polymer electrolyte fuel cells (PEMFC) is studied experimentally and data on corresponding water saturation and capillary pressure are provided for gas diffusion ... -
On the use of physical boundary conditions for two-phase flow simulations: Integration of control feedback
Agnaou, Mehrez; Treeratanaphitak, Tanyakarn; Mowla, Amir; Ioannidis, Marios; Mohieddin Abukhdeir, Nasser; Budman, Hector (Elsevier, 2018-10-04)The sensitivity of two-phase flow simulations using the Euler–Euler model on the inlet boundary conditions (BCs) is studied. Specifically, the physical relevance of Dirichlet uniform inlet velocity BCs is studied which are ... -
Pore network modeling of fibrous gas diffusion layers for polymer electrolyte membrane fuel cells
Gostick, Jeffrey Thomas; Ioannidis, Marios A.; Fowler, Michael W.; Pritzker, Mark D. (Elsevier, 2007-11-08)A pore network model of the gas diffusion layer (GDL) in a polymer electrolyte membrane fuel cell is developed and validated. The model idealizes the GDL as a regular cubic network of pore bodies and pore throats following ... -
Wettability and capillary behavior of fibrous gas diffusion media for polymer electrolyte membrane fuel cells
Gostick, Jeffrey Thomas; Ioannidis, Marios A.; Fowler, Michael W.; Pritzker, Mark D. (Elsevier, 2009-10-20)The relationship of capillary pressure to liquid saturation for the water-air fluid pair in two different types of gas diffusion media (GDM) used in polymer electrolyte membrane fuel cell (PEMFC) electrodes is elucidated. ...