Document Type
Article
Publication Date
10-1-2010
Publication Title
Journal of Fuel Cell Science and Technology
Abstract
For temperature and humidity control of proton exchange membrane fuel cell (PEMFC) reactants, a membrane based external humidification system was designed and constructed. Here we develop and validate a physics based, low-order, control-oriented model of the external humidification system dynamics based on first principles. This model structure enables the application of feedback control for thermal and humidity management of the fuel cell reactants. The humidification strategy posed here deviates from standard internal humidifiers that are relatively compact and cheap but prohibit active humidity regulation and couple reactant humidity requirements to the PEMFC cooling demands. Additionally, in developing our model, we reduced the number of sensors required for feedback control by employing a dynamic physics based estimation of the air-vapor mixture relative humidity leaving the humidification system (supplied to the PEMFC) using temperature and pressure measurements. A simple and reproducible methodology is then employed for parameterizing the humidification system model using experimental data.
Volume
7
Issue
5
First Page
0510061
Last Page
05100612
DOI
10.1115/1.4000997
ISSN
1550624X
Rights
Copyright © 2010 by ASME.
Recommended Citation
McKay, Denise A.; Stefanopoulou, Anna G.; and Cook, Jeffrey, "A Controllable Membrane-Type Humidifier for Fuel Cell Applications-Part I: Operation, Modeling and Experimental Validation" (2010). Engineering: Faculty Publications, Smith College, Northampton, MA.
https://scholarworks.smith.edu/egr_facpubs/116
Comments
Archived as published.