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dc.contributor.authorIsbell, Lauren R.
dc.description28 p.en_US
dc.description.abstractA unique device is used to emulate water droplet emergence from a porous electrode and slug formation in the gas flow channel of a polymer electrolyte membrane fuel cell. Liquid water emerges from a pore forming a droplet, which grows to span the cross-sectional area of the channel and transitions to a slug that then detaches and travels towards the channel exit. Droplet growth, slug formation, detachment, and motion are analyzed using pressure-time traces and MATLAB. Slug volume is controlled primarily by channel geometry, interfacial forces, and the effects of gravity. A physics-based model is presented to predict slug volumes and pressure drops for slug motion. From these results, the amount of power required to remove water from a flow channel is calculated. Results showed that the vertically positioned flow channel studied in this experiment is less power efficient than the previous, and currently, studied horizontal positioned flow channels.en_US
dc.relation.ispartofKalamazoo College Physics Senior Individualized Projects Collection
dc.rightsU.S. copyright laws protect this material. Commercial use or distribution of this material is not permitted without prior written permission of the copyright holder. All rights reserved.
dc.titleWater Management in PEM Fuel Cells : The Effects of Gravity on Vertically Positioned Flow Channelsen_US
KCollege.Access.ContactIf you are not a current Kalamazoo College student, faculty, or staff member, email to request access to this thesis.

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  • Physics Senior Integrated Projects [335]
    This collection includes Senior Integrated Projects (SIP's) completed in the Physics Department. Abstracts are generally available to the public, but PDF files are available only to current Kalamazoo College students, faculty, and staff.

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