Modelling of steam reformer and high temperature PEM fuel cell for microCHP application
Author
Veerappan, Subramanian
Term
4. term
Education
Publication year
2024
Submitted on
2024-01-08
Pages
39
Abstract
This project investigates a micro-combined heat and power (micro-CHP) concept that integrates a steam methane reformer with a high-temperature PEM (HT-PEM) fuel cell to co-produce electricity and heat. The objective is to develop and couple simple submodels of the reformer and the fuel cell stack to describe the conversion of methane and water into hydrogen, carbon monoxide, and carbon dioxide, followed by the electrochemical conversion of hydrogen into electrical power and heat. The approach defines model assumptions and governing equations for both subsystems and implements them in MATLAB, with particular attention to the steam-to-carbon (S/C) ratio as an operating parameter. The simulated results indicate that at an S/C ratio of 1, the integrated model delivers 439.5 W of electrical power and 271 W of heat. The work provides an accessible basis for understanding and estimating the performance of HT-PEM-based microCHP systems and highlights opportunities for further model development.
Dette projekt undersøger en mikro-kraftvarmeløsning, hvor en dampmetanreformer er integreret med en højtemperatur-PEM-brændselscelle (HT-PEM) for samtidig at producere elektricitet og varme. Formålet er at udvikle og sammenkoble enkle delmodeller af reformeren og brændselscellestakken for at beskrive omdannelsen af metan og vand til brint, kulilte og kuldioxid samt den efterfølgende elektrokemiske konvertering af brint til el og varme. Metoden omfatter fastlæggelse af antagelser og styrende ligninger for begge delsystemer og implementering i MATLAB, hvor især damp-til-kulstof-forholdet (S/C) betragtes som en driftsparameter. De simulerede resultater viser, at ved et S/C-forhold på 1 leverer den integrerede model 439,5 W elektrisk effekt og 271 W varme. Arbejdet giver et let anvendeligt grundlag for at forstå og estimere ydeevnen af HT-PEM-baserede microCHP-systemer og peger på muligheder for videre modellering og udvikling.
[This apstract has been generated with the help of AI directly from the project full text]
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