Research On Optimization And Integration Of IGCC-SOFC Hybrid Power System

This paper mainly studies and simulates the IGCC(Integrated Gasification Combined Cycle) system using the software of Aspen Plus and C++.It analysed the main parameters which greatly affect the performance of IGCC system,such as ASU-integrated coefficient,main steam pressure, and drawed the characteristic curves of the IGCC system which changed with the main parameter.On the base of integrated SOFC(Soide Oxygen Fuel Cell) to IGCC system,it analysed the overall performance of the new integrated system.The results showed the network decreasing and the efficiency of the overall system increasing with the increase of ASU-integrated codfficient.It also showed that the main steam pressure of HRSG has a reasonable limit,and the reheat steam pressure and low steam pressure have a optimal point when the main steam pressure is certain.The performance of the new system is greatly improved after the integration of SOFC system.The results obtained from this paper will proide valuable gide for further study on the design and optimizztion of IGCC system with high efficiency.