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Modelling of a Solid Oxide Fuel Cell for Integrated Coal Gasification Hybrid Power Plant Simulation

Krüger, Michael (2015) Modelling of a Solid Oxide Fuel Cell for Integrated Coal Gasification Hybrid Power Plant Simulation. International Journal of Thermodynamics, 18 (2), pp. 95-109. International Centre for Applied Thermodynamics. DOI: 10.5541/ijot.71377 ISSN 1301-9724

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Official URL: http://ijoticat.com/article/view/5000071377

Abstract

Now and in the mid-term future, coal remains an important energy source for electricity generation for reasons of energy supply security and economics. The expectation for low CO2-emissions and high plant efficiencies make solid oxide fuel cells an essential part of numerous innovative power plant concepts. For that reason, simplified and flexible models for solid oxide fuel cells are needed, which can be implemented easily in complex power plant system simulations. A model for a tubular solid oxide fuel cell based on a semi-empirical approach has been developed. The created model is successfully validated with operating data of demonstration plants published in literature. For the target application in a hybrid power plant with high temperature fuel cells, a parametric study of fuel gas composition, operating pressure and temperature, fuel utilization and electrical power density is presented. By means of these, the model of the fuel cell is qualified for implementation in hybrid power plants system models. Additionally, characteristic diagrams obtained by variation of the operating pressure and the fuel utilization are discussed. With the help of the diagrams, the electric and energetic performance of the SOFC over a wide range of these parameters is described by isolines for discrete values of the electrical efficiency and voltage of the fuel cell.

Item URL in elib:https://elib.dlr.de/96955/
Document Type:Article
Title:Modelling of a Solid Oxide Fuel Cell for Integrated Coal Gasification Hybrid Power Plant Simulation
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Krüger, Michaelmichael.krueger (at) dlr.deUNSPECIFIED
Date:1 June 2015
Journal or Publication Title:International Journal of Thermodynamics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:No
Volume:18
DOI :10.5541/ijot.71377
Page Range:pp. 95-109
Publisher:International Centre for Applied Thermodynamics
ISSN:1301-9724
Status:Published
Keywords:Modelling; SOFC; tubular cell; coal gasification; IGFC; hybrid power plant
HGF - Research field:Energy
HGF - Program:Efficient Energy Conversion and Use (old)
HGF - Program Themes:Energy-efficient Processes (old)
DLR - Research area:Energy
DLR - Program:E EV - Energy process technology
DLR - Research theme (Project):E - Thermochemical Processes (old)
Location: Stuttgart
Institutes and Institutions:Institute of Engineering Thermodynamics > Thermal Process Technology
Deposited By: Krüger, Michael
Deposited On:27 Jul 2015 14:22
Last Modified:08 Mar 2018 18:53

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