Perspective Directions of Energy Saving Technologies in Distributed Power Generation

Abstract

The coal gasification in a fluidized bed under pressure, the circulating fluidized bed, the utilization of excess heat of exhaust gases after an exhaust boiler in the binary combined-cycle plant refer to the long-range energy saving solutions of the distributed power engineering. The calculation of technical and economic expediency of the technical re-equipping of a coal-dust power facility with moving to the scheme of a combined-cycle plant and with the implementation of the coal gasification in a fluidized bed under pressure is performed. The way of using additional exit-gas heat behind the recovery boiler system water heating and a chemically treated water of district heating makeup heating is offered. It leads to the production of the extra power by a steam turbine and improves the efficiency of binary combined-cycle cogeneration plant operation.