Optimal Operation of a Trigeneration System Based on Gas-Steam Combined Cycle

In order to save the energy of the trigeneration system based on gas-steam combined cycle, this paper proposes to explore optimal operation modes related to primary energy saving (PES) and operating costing saving (OCS) respectively, by considering the parallel operation of the gas turbine and the steam turbine valve. By taking the summer load of an office building group as the research object, the variations of controllable parameters and indexes are analysed in the trigeneration system with the traditional operation mode and the optimal operation modes. The results suggest that the proposed two operation modes over energy saving and economic aspects are more appropriate than the traditional modes.