Evaluation of system configurations for solid oxide fuel cell-based micro-combined heat and power generators in residential applications

2006 ◽  
Vol 158 (2) ◽  
pp. 1290-1305 ◽  
Author(s):  
R.J. Braun ◽  
S.A. Klein ◽  
D.T. Reindl
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Combined Heat And Power ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Power Generators ◽  
System Configurations

Techno-Economic Optimal Design of Solid Oxide Fuel Cell Systems for Micro-Combined Heat and Power Applications in the U.S.

2010 ◽  
Vol 7 (3) ◽  
Author(s):  
Robert J. Braun
Keyword(s):  
Life Cycle ◽  
Fuel Cell ◽  
Life Cycle Cost ◽  
Combined Heat And Power ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Chp System ◽  
System Configurations ◽  
System Designs ◽  
The U.S

A techno-economic optimization study investigating optimal design and operating strategies of solid oxide fuel cell (SOFC) micro-combined heat and power (CHP) systems for application in U.S. residential dwellings is carried out through modeling and simulation of various anode-supported planar SOFC-based system configurations. Five different SOFC system designs operating from either methane or hydrogen fuels are evaluated in terms of their energetic and economic performances and their overall suitability for meeting residential thermal-to-electric ratios. Life-cycle cost models are developed and employed to generate optimization objective functions, which are utilized to explore the sensitivity of the life-cycle costs to various system designs and economic parameters and to select optimal system configurations and operating parameters for eventual application in single-family, detached residential homes in the U.S. The study compares the results against a baseline SOFC-CHP system that employs primarily external steam reforming of methane. The results of the study indicate that system configurations and operating parameter selections that enable minimum life-cycle cost while achieving maximum CHP-system efficiency are possible. Life-cycle cost reductions of over 30% and CHP efficiency improvements of nearly 20% from the baseline system are detailed.

Electrochemical and Exergetic Modeling of a Combined Heat and Power System Using Tubular Solid Oxide Fuel Cell and Mini Gas Turbine

2013 ◽  
Vol 10 (5) ◽  
Author(s):  
M. Y. Abdollahzadeh Jamalabadi
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Gas Turbine ◽  
Combined Heat And Power ◽  
Solid Oxide ◽  
Entropy Generation Rate ◽  
Oxide Fuel ◽  
Exergy Destruction ◽  
Cell Temperature ◽  
Destruction Rate

In this article, a combined heat and power (CHP) system using a solid oxide fuel cell and mini gas turbine is introduced. Since a fuel cell is the main power generating source in hybrid systems, in this investigation, complete electrochemical and thermal calculations in the fuel cell are carried out in order to obtain more accurate results. An examination of the hybrid system performance indicates that increasing of the working pressure and rate of air flow into the system, cause the cell temperature to reduce, the efficiency and the power generated by the system to diminish, and the entropy generation rate and exergy destruction rate to increase. On the other hand, increasing the flow rate of the incoming fuel, the rise in cell temperature causes the efficiency, generated power, and exergy destruction rate of the system to increase.

A direct flame solid oxide fuel cell for potential combined heat and power generation

2012 ◽  
Vol 37 (10) ◽  
pp. 8621-8629 ◽  
Author(s):  
Xingbao Zhu ◽  
Bo Wei ◽  
Zhe Lü ◽  
Lei Yang ◽  
Xiqiang Huang ◽  
...  
Keyword(s):  
Power Generation ◽  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Combined Heat And Power ◽  
Solid Oxide ◽  
Oxide Fuel
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