Casing structure for and method of improvimg a turbine's thermal response during transient and steady state operating conditions

摘要

A method is disclosed for improving a turbine's thermal response during transient and steady state operating conditions in which the flow of cooling fluid (25) in the turbine's casing (10) is caused to be asymmetrical relative to the horizontal and vertical symmetry planes (31, 33) of the casing (10) so that the turbine's cooling symmetry planes (30', 32') are rotated relative to its geometric symmetry planes (31, 33) and thereby the heat transfer at locations (27, 29) in the casing (10) with increased mass is increased.