Modeling Heat and Power Generation for Green Buildings based on Solid Oxide Fuel Cells and Renewable Fuels (Biogas)

The use of green buildings is increasing these days, and many activities have been done in order to improve the efficiency of this type of constructions by the advancement of this technology. Fuel cells are an equipment that are used to generate power and heat for residential buildings in the recent years. For this purpose, in this work, a building in a cold region was studied. The fuel of a fuel cell was provided from renewable fuel reforming, which fermentated waste and wastewater. First, a SOFC modeling was carried out, which was fed by biogas from a building waste. The modeling results of the renewable-fuel fuel cell of this building showed that 72% of electricity and 13% of the required heating could be provided using its wastes. All in all, using biogas that was produced from building waste, most of the required power and a part of the required hot water could be provided, and the environmental pollution was reduced by utilizing waste and trash. This utilized all the wastes of the building for biofuel production and also provided the majority of the electricity and heating demand of the building.