Paper 7: Design of a Range of Condensing Steam Turbines for the Petrochemical Industry

To meet the requirements of the industry for condensing turbines capable of high speeds, the turbines need to be specifically designed for the purpose. The authors deal with straight condensing turbines, and show the powers, speeds, and steam conditions which are required. A range of turbines is set down covering speeds up to 20 000 rev/min and powers up to 15 000 hp.

A 12 000 rev/min turbine is illustrated, and some design aspects are discussed in more detail. Particular reference is made to the design of the h.p. and l.p. blading, the rotor system, and the governor system.