METHODS OF STEAM GENERATION

**Definition:** This place covers:

This subclass covers general aspects of, or methods for, steam generation. Methods of steam generation characterised by the form of heating method, constructional features of steam boilers, control systems for steam boilers and all component parts or details of steam boilers are covered. Thereby this subclass is limited in only methods of, or apparatus for, the generation of steam under pressure for heating or power purposes.

**Glossary:** - once-through boiler: type of boiler in which water is input at one side, and steam is extracted from the other side of the flow path - forced-flow boiler: type of boiler in which a pump ensures flow - forced-once-through boiler: combination of a once-through and a forced-flow boiler (a pump ensures flow of a boiler in which water is input at one side, and steam is extracted from the other side of the flow path) - forced-circulation boiler: type of boiler in which recirculation is achieved by a circulation pump - natural-circulation boiler: type of boiler in which the circulation is achieved by the difference in density of the heated water in the boiler causing convection currents