| 摘要 |
PCT No. PCT/SE91/00337 Sec. 371 Date Jan. 8, 1993 Sec. 102(e) Date Jan. 8, 1993 PCT Filed May 8, 1991 PCT Pub. No. WO91/17389 PCT Pub. Date Nov. 14, 1991.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. The at least one heat transfer surface is connected with a high temperature section of a feedwater/steam section for utilizing energy extracted in the heat transfer surface and the temperature variations of the pressurized air supplied to the pressurized fluidized bed are eliminated by controlling the feedwater/steam flow through the heat transfer surface based on the deviations between a desired temperature of the air to be delivered to the fluidized bed and a measured temperature of the pressurized air from the compressor. |
