Energy Analysis of Pressurized Solid Oxide Fuel Cell Combined Power Turbine

Authors: M. Ayazi, R. Karami, B. Kamkari

Abstract:

Solid oxide fuel cells have been considered in the last years as one of the most promising technologies for very highefficiency electric energy generation from hydrogen or other hydrocarbons, both with simple fuel cell plants and with integrated gas turbine-fuel cell systems. In the present study, a detailed thermodynamic analysis has been carried out. Mass and exergy balances are performed not only for the whole plant but also for each component in order to evaluate the thermal efficiency of combined cycle. Moreover, different sources of irreversibilities within the SOFC stack have been discussed and a parametric study conducted to evaluate the effect of temperature as well as pressure on SOFC irreversibilities and its performance. In this investigation methane and hydrogen have been used for fueling the SOFC stack and combustion chamber.

Keywords: SOFC, Energy, Power turbine, Irreversibility.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1070569

References:

[1] Energy Information Administration, International Energy Outlook, 2009.
[2] Ibrahim Dincer, Environmental impacts of energy, Energy Policy 27 (14) (1999) 845-854.
[3] U.S. Environmental Protection Agency, Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2007,2009.
[4] Tom Kerr, Combined heating and power and emissions trading: options for policy makers, International Energy Agency (2008).
[5] Larminie J, Dicks A. Fuel cell system explained. New York: Wiley; 2004.
[6] Benjamin TG, Camera EH, Marianowski LG. Handbook of fuel cell performance. Institute of Gas Technology; 1995.
[7] Fuel cell technology handbook, 2002. Gregors Hoogers/CRC Press/SAE 814 International, Hardbound.
[8] Kimijima S, Kasagi N. Performance evaluation of gas turbine—fuel cell hybrid micro generation system. In: Proceedings of Asmeturbo Expo 2002, Amsterdam, the Netherlands, June 3-6.
[9] Bae BH, Sohn JL, Ro ST. Thermodynamic modeling and performance analysis of a power generation system based on the solid oxide fuel cell. In: Proceedings of ASME Conference on Fuel Cell Science, Engineering and Technology, Rochester, New York, USA, April 21-23,2003.
[10] Inui Y, Yanagisawa S, Ispida T. Proposal of high performance SOFC combined power generation system with carbon dioxide recovery. Energy Conyers Manage 2003; 44:597-609.
[11] Chan SH, Ho HK, Tian Y. Modelling of a simple hybrid solid oxide fuel cell and gas turbine power plant. J Power Sources 2002; 109:111-20.
[12] Chan SH, Ho HK, Tian Y. Modeling for part load operation of solid oxide fuel cell—gas turbine hybrid power plant. J Power Sources 2003; 114:213-27.
[13] Chan SH, Ho HK, Tian Y. Multi-level modeling of SOFC-gas turbine hybrid system. International journal Hydrogen Energy 2003; 28:889¬900.