Demonstration of a trigeneration system based on solid oxide fuel cell fed by LNG integrated with humid air gas turbine (HAT) for application in satellite stations

Growing of LNG industry could develop many of the satellite stations. Presenting a novel way to efficiently utilize the cold waste energy in satellite stations fed by LNG is proposed in this research. In this article, a trigeneration system based on solid oxide fuel cell-humid air turbine gas fed by LNG is proposed. On the one hand, this new system would increase the overall efficiency by utilization of cold waste energy via the cascade system; and on the other hand, would have a positive influence on pollutant emissions. Results indicate that for the proposed system overall electrical efficiency and exergy efficiency could be 64.7% and 54.4% respectively. Nonetheless, the overall thermal efficiency of the system could even reach to 79.1%. In addition, this system would recover carbon dioxide at -148.8 oC and 300 kPa where the rate of absorption and concentration of carbon dioxide would be 98.7% and 98.9% respectively.