An integrated energy system based on microgas turbine and ORC with gasification: numerical study and performance analysis

The opportunities and critical aspects related to the use of low heating value gaseous fuels produced from biomasses in an integrated energy system composed by a micro gas turbine, an ORC as bottom system and a gasification system are analyzed in the paper. The aim is to individuate an efficient strategy to an energetic re-use of organic solid waste with small plants in a distributed energy point of view. The study was carried out through thermodynamic analysis of each component. Results of simulations highlight the possibility of using syngas in commercial MGTs with waste heat recovery when mixed with methane but specially biogas to obtain a full renewable power generation.