Abstract: A boiler plant, comprising at least a first boiler and a second boiler. The first boiler comprises a first superheater and a first reheater for generation and heating of steam. The second boiler comprises a second superheater and a second reheater for generation and heating of steam. A first high-pressure turbine is driven by steam generated by the first superheater and fed to the first high-pressure turbine. The steam is delivered to the first reheater after having been expanded in the first high-pressure turbine. A second high-pressure turbine is driven by steam generated by the second superheater and fed to the second high-pressure turbine. The steam is delivered to the second reheater after having been expanded in the second high-pressure turbine. An intermediate-pressure/low-pressure turbine is driven by reheated steam generated by the first and second reheaters fed to the intermediate-pressure/low-pressure turbine.

Abstract: A method for cooling and eliminating temperature variations in a power plant for combustion of a fuel in a pressurized fluidized bed includes pressuring air in a compressor and supplying the pressurized air to the pressurized fluidized bed through air paths after the pressurized air is cooled and temperature variations in the pressurized air are substantially eliminated prior to supplying the pressurized air into the pressurized fluidized bed in at least one transfer surface provided in the air paths.