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A Simplificative Approach‐based Modeling of SOFC Power Systems Fed by Natural Gas
Author(s) -
Beigzadeh M.,
Pourfayaz F.,
Ahmadi M. H.,
Pourkiaei S. M.,
Beigzadeh M.
Publication year - 2017
Publication title -
fuel cells
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.485
H-Index - 69
eISSN - 1615-6854
pISSN - 1615-6846
DOI - 10.1002/fuce.201700015
Subject(s) - methane , solid oxide fuel cell , current (fluid) , nuclear engineering , volumetric flow rate , power density , power (physics) , environmental science , process engineering , natural gas , automotive engineering , materials science , thermodynamics , chemistry , electrical engineering , waste management , engineering , electrode , anode , physics , organic chemistry
The fuel cell system is modeled to investigate output factors including voltage, power, and system efficiency for various input elements including different fuel composition, the air and fuel temperature and their utilization ratios. The purpose of this study is to examine the proficiency of a tubular solid oxide fuel cell (SOFC) by simplification in modeling calculation which results in the minimum required data. An electrochemical model is defined at first, and different current losses types were calculated in the next step. In further papers the amount of air and fuel is known and in some of them operating temperature must be known. But in this study it is enough to know the current density and required generated power of the SOFC. Since the amount of reacted methane is almost equal to input value, after performing this calculation for several fuel cells and validating it, the most optimal value for methane output is evaluated and output parameters of SOFC are calculated, then results are validated. The effect of main factors, including system temperature, pressure, current density, air and fuel flow rates and air to fuel ratio on the SOFC efficiency, were studied. Modeling method of current study provides optimum air and fuel flow rate.