Solid Oxide Fuel Cells fuelled with biogas: Potential and constraints

Anaerobic Digestion (AD) is used worldwide for treating organic waste and wastewater. Biogas produced can be converted using conventional energy conversion devices to provide energy efficient, integrated waste solutions. Typically, the electrical conversion-efficiency of these devices is 30–40% and is lowered due to biogas utilization instead...

Investigating nickel and ceria anode electrochemistry in multifuel environments

Conventional energy technologies and fossil fuels are causing irreversible damage to the environment. A transition from conventional to sustainable technologies is inevitable to address the environmental concerns. Solid oxide fuel cells (SOFCs) can play a key role in this transition because of their high efficiency and fuel flexibility – SOFCs...

Thermodynamic analysis of solid oxide fuel cell integrated system fuelled by ammonia from struvite precipitation process

Energy and exergy performance of ammonia fuelled solid oxide fuel cell (SOFC) integrated system in wastewater treatment plants (WWTPs) is evaluated in this study. Ammonia can be recovered through a struvite precipitation process in the form of an ammonia-water mixture (with 14 mol.% ammonia) and used as a carbon-free fuel. A series of...

A reduced-order model of a solid oxide fuel cell stack for model predictive control

The maritime industry is actively exploring alternative fuels and drive train technology to reduce the emissions of hazardous air pollutants and greenhouse gases. High temperature solid oxide fuel cells (SOFCs) represent a promising technology to generate electric power on ships from a variety of renewable fuels with high efficiencies and no...

Study of Trends in System Efficiency for a Biomass Integrated Gasification Fuel Cell Gas Turbine System when Carbon Dioxide Content is Enhanced

The performance of a 30-kW gasifier–SOFC–GT system was evaluated using thermodynamic calculations. Nickel/Gadolinia Doped Ceria (Ni/GDC) anodes were utilized for Solid Oxide Fuel Cells (SOFCs). These systems can achieve high electrical efficiencies of above 50%. The goal of the study is to evaluate trends in system efficiency when carbon...

The effects of fuel type and cathode off-gas recirculation on combined heat and power generation of marine SOFC systems

An increasing demand in the marine industry to reduce emissions led to investigations into more efficient power conversion using fuels with sustainable production pathways. Solid Oxide Fuel Cells (SOFCs) are under consideration for long-range shipping, because of its high efficiency, low pollutant emissions, and fuel flexibility. SOFC systems...