Next Article in Journal
A Comparison of Wind Flow Models for Wind Resource Assessment in Wind Energy Applications
Next Article in Special Issue
Electrodeposition of a Au-Dy2O3 Composite Solid Oxide Fuel Cell Catalyst from Eutectic Urea/Choline Chloride Ionic Liquid
Previous Article in Journal / Special Issue
Experimental Characterization of the Poisoning Effects of Methanol-Based Reformate Impurities on a PBI-Based High Temperature PEM Fuel Cell
Article Menu

Export Article

Open AccessArticle
Energies 2012, 5(11), 4268-4287; doi:10.3390/en5114268

Exergy Analysis of an Intermediate Temperature Solid Oxide Fuel Cell-Gas Turbine Hybrid System Fed with Ethanol

Department of Mechanical Engineering, School of Engineering, University of Thessaly, Pedion Areos, 38334, Greece
*
Author to whom correspondence should be addressed.
Received: 10 July 2012 / Revised: 24 September 2012 / Accepted: 18 October 2012 / Published: 24 October 2012
(This article belongs to the Special Issue Hydrogen Energy and Fuel Cells)
View Full-Text   |   Download PDF [1156 KB, uploaded 17 March 2015]   |  

Abstract

In the present work, an ethanol fed Solid Oxide Fuel Cell-Gas Turbine (SOFC-GT) system has been parametrically analyzed in terms of exergy and compared with a single SOFC system. The solid oxide fuel cell was fed with hydrogen produced from ethanol steam reforming. The hydrogen utilization factor values were kept between 0.7 and 1. The SOFC’s Current-Volt performance was considered in the range of 0.1–3 A/cm2 at 0.9–0.3 V, respectively, and at the intermediate operating temperatures of 550 and 600 °C, respectively. The curves used represent experimental results obtained from the available bibliography. Results indicated that for low current density values the single SOFC system prevails over the SOFC-GT hybrid system in terms of exergy efficiency, while at higher current density values the latter is more efficient. It was found that as the value of the utilization factor increases the SOFC system becomes more efficient than the SOFC-GT system over a wider range of current density values. It was also revealed that at high current density values the increase of SOFC operation temperature leads in both cases to higher system efficiency values. View Full-Text
Keywords: exergy analysis; ethanol; SOFC-GT; fuel cell; hybrid systems exergy analysis; ethanol; SOFC-GT; fuel cell; hybrid systems
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Stamatis, A.; Vinni, C.; Bakalis, D.; Tzorbatzoglou, F.; Tsiakaras, P. Exergy Analysis of an Intermediate Temperature Solid Oxide Fuel Cell-Gas Turbine Hybrid System Fed with Ethanol. Energies 2012, 5, 4268-4287.

Show more citation formats Show less citations formats

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top