Condensate preheater for waste heat steam generator
AssigneeSiemens Aktiengesellschaft
InventorUWE JURETZEK
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Abstract
A condensate preheater for a waste-heat steam generator, including condensate preheater heating surfaces, around which exhaust gas of a gas turbine flows in operation in order to heat up water flowing in the condensate preheater heating surfaces, wherein a respective heat transfer coefficient of the condensate preheater heating surfaces is selected such that a surface temperature of the condensate preheater heating surfaces is above an exhaust gas dew point in operation, wherein the condensate preheater has a condensate preheater inlet and a condensate preheater outlet and the heat transfer coefficient at the condensate preheater inlet is reduced relative to the heat transfer coefficient at the condensate preheater outlet, is provided.
Claims6
A condensate preheater for a waste heat steam generator, comprising:
- a plurality of condensate preheater heating surfaces around which an exhaust gas from a gas turbine flows during operation to heat a water flowing into the plurality of condensate preheater heating surfaces;
- wherein a respective heat transfer coefficient of the plurality of condensate preheater heating surfaces is selected such that in operation, a surface temperature of the plurality of condensate preheater heating surfaces lies above an exhaust gas dew point;
- wherein the condensate preheater has a condensate preheater inlet and a condensate preheater outlet, and the respective heat transfer coefficient at the condensate preheater inlet is reduced compared with the respective heat transfer coefficient at the condensate preheater outlet.
Dependencies are inferred from the claim text.