The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 28, 2000
Filed:
Oct. 03, 1997
Hermann Bruckner, Uttenreuth, DE;
Erich Schmid, Marloffstein, DE;
Wilhelm Ernstberger, Effeltrich, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A waste-heat steam generator of a gas-turbine and steam-turbine system. The steam-generating heat content in the expanded working medium from the gas turbine is used for the steam turbine connected into a water/steam loop. Condensed steam from the steam turbine is supplied as condensate to the water/steam loop. A partial flow is diverted from the water-steam loop for selectively preheating the condensate or the fuel with the partial flow. To achieve high efficiency, irrespective of the fuel used for the gas turbine, when oil is used as the fuel for the gas turbine, the partial flow from the water/steam loop is used for condensate preheating. When gas is used as the fuel for the gas turbine, the partial flow is used for fuel preheating. A heat exchanger for the selective preheating either of the gas-turbine fuel or of the condensate with the partial flow is provided.