کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1281065 1497615 2010 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermodynamic and economic optimization of a MCFC-based hybrid system for the combined production of electricity and hydrogen
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Thermodynamic and economic optimization of a MCFC-based hybrid system for the combined production of electricity and hydrogen
چکیده انگلیسی

In this paper, a biogas fuelled power generation system is considered. The system is based on a molten carbonate fuel cell (MCFC) stack integrated with a micro gas turbine for electricity generation, coupled with a pressure swing absorption system (PSA) for hydrogen production.The aim of this work is the optimal design of the system plant considering thermodynamic and economic objective functions. Optimization is performed by modifying the design parameters characterizing the operation of the fuel cell, the reformer and the microturbine. The corresponding costs and performances are obtained using a model developed at component level. Pinch analysis technique and a general heat exchanger network are used in order to select the optimal configuration of the heat exchangers. As a result, the Pareto front relating maximum efficiencies and minimum unit cost of electricity is obtained. The design corresponding with minimum cost of electricity, 0.036 €/kWh, is characterized by an electrical efficiency of about 0.46. The design corresponding with maximum efficiency, about 0.62, is characterized by a unit cost of electricity of 0.055 €/kWh.In the last part of the paper the effects produced by single variation of the design variables on unit cost of electricity and electrical efficiency are discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 35, Issue 2, January 2010, Pages 794–806
نویسندگان
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