Overall
- Language
- English
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
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Received March 19, 2024
Accepted April 12, 2024
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Most Cited
Investigating the Impact of Methanol Concentration and Implementation of a Coeffi cient Diagram-Based Control System for Direct Methanol Fuel Cell Operation
Abstract
The impact of methanol concentration on direct methanol fuel cell (DMFC) of 45 cm 2 zones of activity was experimentally
studied with serpentine channel fi eld design. The performance of the DMFC was analyzed and the optimum methanol concentration
was determined with a polarization curve. A recently suggested Coeffi cient Diagram derived from PI Controller
(CD-PIC) was used to run the model-based DMFC in a closed loop with the manipulated variable as methanol concentration.
The CD-PIC design is simple and effi cient compared to the Bode Diagram-based controller design. It is also used to
test the performance and robustness of the system apart from the stability. A recently suggested PI Controller that relies on
a Coeffi cient Schematic is employed in DMFC operation. The progress of the proposed CD-PIC is evaluated under load
abandonment circumstances and set point monitoring. Set point tracking and load rejection tests are carried out with step
changes at diff erent operating points. The controller execution is evaluated in ways of controller progress measuring (CPM)
indices. The suggested performance metrics for the proposed CD-PIC indicate that it yields better performance for servo
problems and regulatory problems which support the supremacy of CD-PIC. The robustness of the CD-PIC is also analyzed.
From the CPM indices, it is concluded that the recently created CD-PIC for DMFC is found as highly robust.
