Design features of the steam generator

The choice of boiler plant to satisfy best the requirements of a particular power station project is influenced by a combination of technical, commercial and system requirements generally unique to each new installation. An understanding of boiler design options and performance record is one of the major influences on the selection of cycle parameters. The paper describes the selection of steam pressure and temperature conditions and the consequences of the lack of indigenous fuel. The considerations bearing on the choice of circulation system, steam and reheat temperature control methods and the optimum arrangement of heating surfaces are described and the reasons for the choices given.