Process Systems Engineering and Safety
Optimal Design and Operation of a SOFC–GTCC Hybrid Cycle Power Plant System
2007 Volume 33 Issue 5 Pages 453-462
Details
2007 Volume 33 Issue 5 Pages 453-462
A solid oxide fuel cell (SOFC) hybrid cycle power plant system is expected to be a higher efficiency energy system than a conventional gas turbine combined cycle system (GTCC). The optimal design and operational conditions of a SOFC-GTCC hybrid system were derived by using static principle models. Results showed that the electrical efficiency of a 100 MW pressurized topping cycle system can be more than 70% on the basis of high heating value. On the other hand, the electrical efficiency of the SOFC-GTCC hybrid system minimizing the life cycle cost decreased to 67%, because the initial cost of SOFC is much higher than that of GTCC. The SOFC-GTCC system showed robustness to load changes during operation when it was designed through a multi-period optimization.
