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Citation:
　Yousri M. A. Welaya,M. Mosleh and Nader R. Ammar.Energy Analysis of a Combined Solid Oxide Fuel Cell with a Steam Turbine Power Plant for Marine Applications[J].Journal of Marine Science and Application,2013,(4):473-483.[doi:10.1007/s11804-013-1219-5]
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Energy Analysis of a Combined Solid Oxide Fuel Cell with a Steam Turbine Power Plant for Marine Applications

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Title:
Energy Analysis of a Combined Solid Oxide Fuel Cell with a Steam Turbine Power Plant for Marine Applications
Author(s):
Yousri M. A. Welaya;  M. Mosleh and Nader R. Ammar
Affilations:
Author(s):
Yousri M. A. Welaya;  M. Mosleh and Nader R. Ammar
Department of Naval Architecture & Marine Engineering, Alexandria University, Alexandria, Egypt
Keywords:
marine steam turbine;  natural gas fuel;  solid oxide fuel cell;  hybrid system;  energy analysis
分类号:
-
DOI:
10.1007/s11804-013-1219-5
Abstract:
Strong restrictions on emissions from marine power plants (particularly SOx, NOx) will probably be adopted in the near future. In this paper, a combined solid oxide fuel cell (SOFC) and steam turbine fuelled by natural gas is proposed as an attractive option to limit the environmental impact of the marine sector. The analyzed variant of the combined cycle includes a SOFC operated with natural gas fuel and a steam turbine with a single-pressure waste heat boiler. The calculations were performed for two types of tubular and planar SOFCs, each with an output power of 18 MW. This paper includes a detailed energy analysis of the combined system. Mass and energy balances are performed not only for the whole plant but also for each component in order to evaluate the thermal efficiency of the combined cycle. In addition, the effects of using natural gas as a fuel on the fuel cell voltage and performance are investigated. It has been found that a high overall efficiency approaching 60% may be achieved with an optimum configuration using the SOFC system. The hybrid system would also reduce emissions, fuel consumption, and improve the total system efficiency.

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Last Update: 2013-11-14