Dynamic characteristics and fast load following of 5‐kW class tubular solid oxide fuel cell/micro‐gas turbine hybrid systems. (6th May 2013)

• Record Type: Journal Article
• Authors: So‐ryeok, Oh; Jing, Sun; Herb, Dobbs; Joel, King; Karakoc, Hikmet; Midilli, Adnan; Turan, Onder
• Is Part Of: International journal of energy research. Volume 37:Number 10(2013:Aug.)
• Page Start: 1242
• Page End: 1255
• Publication Date: 2013-05-06
• Subjects: Power resources -- Periodicals; Power (Mechanics) -- Periodicals; Power resources -- Research -- Periodicals; 621.042
• DOI: 10.1002/er.3031
• Languages: English
• ISSNs: 0363-907X

Abstract

<abstract abstract-type="main"> <title>SUMMARY</title> <p>Combining solid oxide fuel cell and gas turbine (SOFC/GT) system is a promising concept for future clean and efficient power generation. An SOFC/GT system exploits the complementary features of the two power plants, where the GT recuperates the energy in the SOFC exhaust stream and thereby boosts the overall system efficiency. Through model‐based transient analysis, however, it is shown that the intricate coupling dynamics make the transient load following very challenging. The purpose of this study is to examine the load‐following capability of 5‐kW class SOFC/micro‐GT hybrid systems in two different configurations: single‐shaft and dual‐shaft GT designs. An optimal load‐following operation scheme, aimed at achieving a proper trade‐off between high steady‐state efficiency and fast transient response is developed through model‐based dynamic analysis and optimization. Simulation results are reported to illustrate the effectiveness of the proposed optimal scheme. Copyright © 2013 John Wiley &amp; Sons, Ltd.</p> </abstract>