| 摘要 |
1. Method for generating electrical energy and heat energy using a gasturbine/steam power station equipped with a fluidised bed firing system (10), in which air is compressed, heated in a heat exchanger (22) located in the fluidised bed firing system (10), expanded in a gas turbine (30) driving the compressor (26), giving up the surplus energy to an electrical generator (38), and is supplied in total as combustion air to the fluidised bed firing system (10), in which steam is generated using the heat energy released in the fluidised bed firing system and is supplied to a steam turbine driving a second electrical generator (54), and in which the combustion gases are supplied, after the heat rejection serving to generate the steam, to an exhaust gas heat exchanger (74) for further cooling, characterized in that the steam is generated in an unfired and separate exhaust heat boiler (44) fitted downstream on the combustion gas side of the fluidised bed firing system (10) and is supplied to the steam turbine designed as a back pressure steam turbine (52), that a hot water heater (64) provided in a heating circuit is subjected to the steam extracted from the back pressure steam turbine (52), and that hot water with an adjustable hot water mass flow flows through the exhaust gas heat exchanger (74), connected in parallel with the hot water heater (64) and subject to combustion gas within the exhaust heat boiler (44). |
