Exergy Analysis of a Gasification-Based Combined Cycle with Solid Oxide Fuel Cells for Cogeneration

2011 ◽  
Vol 8 (8) ◽  
pp. 834-856 ◽  
Author(s):  
A. Odukoya ◽  
I. Dincer ◽  
G. F. Naterer
Author(s):  
C. M. Colson ◽  
M. H. Nehrir ◽  
M. C. Deibert ◽  
M. R. Amin ◽  
C. Wang

Solid oxide fuel cells (SOFCs) are high-temperature, high-efficiency, combustionless electrochemical energy conversion devices that have potential for combined cycle applications. This paper intends to clarify and expand the efficiency discussions related to SOFC when operating in combined cycle (CC) systems. A brief analysis of the first and second thermodynamic laws is conducted and, building upon a previously developed SOFC dynamic model, operating fuel heating values are determined by utilizing the semi-empirical gas phase heat capacity method. As a result, accurate SOFC stack operational simulations are conducted to calculate its efficiency based on actual thermodynamic parameters. Furthermore, an analysis is conducted of a combined SOFC-CC system using dynamic modeling. Simulation results are given, which are intended to aid researchers in evaluating hybrid SOFC-CC generation systems.


2006 ◽  
Vol 45 ◽  
pp. 1837-1846 ◽  
Author(s):  
Subhash C. Singhal

A solid oxide fuel cell (SOFC) electrochemically converts chemical energy of a fuel into electricity at temperatures from about 650 to 1000oC. SOFCs offer certain advantages over lower temperature fuel cells, notably ability to use CO as a fuel rather than being poisoned by it, and high grade exhaust heat for combined heat and power, or combined cycle gas turbine applications. This paper reviews the operating principle, materials for different cell and stack components, cell designs, and applications of SOFCs. Among different designs of solid oxide fuel cells (SOFCs), the electrical resistance of tubular SOFCs is high, and areal power density (W/cm2) and volumetric power density (W/cm3) low. Planar SOFCs, in contrast, are capable of achieving very high power densities.


2009 ◽  
Vol 149 (1-3) ◽  
pp. 183-190 ◽  
Author(s):  
C. Athanasiou ◽  
E. Vakouftsi ◽  
F.A. Coutelieris ◽  
G. Marnellos ◽  
A. Zabaniotou

2013 ◽  
Vol 51 (2) ◽  
pp. 125-130 ◽  
Author(s):  
Sun-Min Park ◽  
Hae-Ran Cho ◽  
Byung-Hyun Choi ◽  
Yong-Tae An ◽  
Ja-Bin Koo ◽  
...  

2015 ◽  
Vol 30 (10) ◽  
pp. 1043
Author(s):  
CHANG Xi-Wang ◽  
CHEN Ning ◽  
WANG Li-Jun ◽  
BIAN Liu-Zhen ◽  
LI Fu-Shen ◽  
...  

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