Description
Class F22B : METHODS OF STEAM GENERATION; STEAM BOILERS
Subclass 1/12: Methods of steam generation characterised by form of heating method (use of solar heat F24J 2/00; jackets or other cooling means in which steam is generated and which serve for cooling other apparatus, see the subclasses for such apparatus) by exploitation of the heat content of hot heat carriers the heat carrier being steam produced by an indirect cyclic process