Patent ID: 8689557
Filing Date: 2014-04-08
Classification: F01D,F01K,F05D

Abstract:
1. A method for delivering steam dump flow to a condenser or an LP steam turbine, the method comprising: (a) initially routing the steam dump flow to the condenser; (b) when a first predetermined permissive is met, cooling the steam dump flow in a desuperheater, the desuperheater outputting cooled steam; (c) after step (b), routing the cooled steam to the condenser until a temperature of the cooled steam is stable, the stability of the cooled steam temperature defining a second predetermined permissive; (d) when the second predetermined permissive is met, routing the cooled steam to inlets of the LP steam turbine where the cooled steam can expand and do work; and (e) determining whether the second permissive is met by detecting a temperature of the cooled steam.