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MODELING AND CONTROL OF SOLID OXIDE FUEL CELL - GAS TURBINE POWERPLANT SYSTEMS

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Hahn, Adam (2004) MODELING AND CONTROL OF SOLID OXIDE FUEL CELL - GAS TURBINE POWERPLANT SYSTEMS. Master's Thesis, University of Pittsburgh. (Unpublished)

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Abstract

There is extensive research taking place involving fuel cell - gas turbine combined power plantsystems. These systems use a high temperature fuel cell and a gas turbine to achieve higheroverall performance and efficiency than a single mode power plant. Due to the high temperatureof the exhaust gasses of the fuel cell, heat can be recuperated and used to drive a gas turbine.The turbine creates additional power and is a means of utilizing the exhaust energy of the fuelcell. Despite the research being done on integrating these systems, little work has been done tocharacterize the dynamics of the integrated systems. Due to the high response of the fuel celland the relatively sluggish response of the turbine, control of the system needs to be understood.This thesis develops dynamic models of the individual components that comprise a fuel cell -gas turbine hybrid system (axial flow compressor, combustor, turbine, fuel cell, and heatexchanger). These models are incorporated to produce a complete dynamic hybrid model. Themodels are analyzed with respect to dynamics and basic control techniques are used to controlvarious parameters. It is shown that the system can be controlled using hydrogen input flow ratecontrol for the fuel cell and controlled turbine inlet temperature for the gas turbine.


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Details

Item Type: University of Pittsburgh ETD
Status: Unpublished
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Hahn, Adamadam.hahn@mckessonaps.com
ETD Committee:
TitleMemberEmail AddressPitt UsernameORCID
Committee ChairVipperman, Jeffreyjsv@pitt.eduJSV
Committee MemberCho, Sung Kwonskc@engr.pitt.eduSKCHO
Committee MemberClark, Williamwclark@engrng.pitt.edu
Date: 9 June 2004
Date Type: Completion
Defense Date: 8 April 2004
Approval Date: 9 June 2004
Submission Date: 12 April 2004
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Institution: University of Pittsburgh
Schools and Programs: Swanson School of Engineering > Mechanical Engineering
Degree: MSME - Master of Science in Mechanical Engineering
Thesis Type: Master's Thesis
Refereed: Yes
Uncontrolled Keywords: control; fuel cell; gas turbine; hybrid; modeling; power plant; solid oxide
Other ID: http://etd.library.pitt.edu/ETD/available/etd-04122004-163831/, etd-04122004-163831
Date Deposited: 10 Nov 2011 19:35
Last Modified: 15 Nov 2016 13:39
URI: http://d-scholarship.pitt.edu/id/eprint/7025

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