N2 - Based on mathematical modeling and numerical simulations, applicativity of various biofuels on high temperature fuel cell performance are presented. Governing equations of high temperature fuel cell modeling are given. Adequate simulators of both solid oxide fuel cell (SOFC) and molten carbonate fuel cell (MCFC) have been done and described. Performance of these fuel cells with different biofuels is shown. Some characteristics are given and described. Advantages and disadvantages of various biofuels from the system performance point of view are pointed out. An analysis of various biofuels as potential fuels for SOFC and MCFC is presented. The results are compared with both methane and hydrogen as the reference fuels. The biofuels are characterized by both lower efficiency and lower fuel utilization factors compared with methane. The presented results are based on a 0D mathematical model in the design point calculation. The governing equations of the model are also presented. Technical and financial analysis of high temperature fuel cells (SOFC and MCFC) are shown. High temperature fuel cells can be fed by biofuels like: biogas, bioethanol, and biomethanol. Operational costs and possible incomes of those installation types were estimated and analyzed. A comparison against classic power generation units is shown. A basic indicator net present value (NPV) for projects was estimated and commented. L1 - http://www.journals.pan.pl/Content/94371/PDF/03_paper.pdf L2 - http://www.journals.pan.pl/Content/94371 PY - 2012 IS - No 4 December EP - 65 DO - 10.2478/v10173-012-0027-7 KW - mathematical modeling KW - Solid oxide fuel cell KW - Molten carbonate fuel cell KW - biofuels A1 - Milewski, Jarosław A1 - Bujalski, Wojciech A1 - Lewandowski, Janusz PB - The Committee of Thermodynamics and Combustion of the Polish Academy of Sciences and The Institute of Fluid-Flow Machinery Polish Academy of Sciences DA - 2011 T1 - Thermodynamic analysis of biofuels as fuels for high temperature fuel cells SP - 41 UR - http://www.journals.pan.pl/dlibra/publication/edition/94371 T2 - Archives of Thermodynamics