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:
Feb. 03, 2015
Filed:
Jul. 10, 2009
Steven Andrew Rose, Cypress, TX (US);
Christopher James Doyle, Carlsbad, CA (US);
Steven Andrew Rose, Cypress, TX (US);
Christopher James Doyle, Carlsbad, CA (US);
NRG Energy, Inc., Princeton, NJ (US);
Abstract
Disclosed herein are embodiments of combined cycle power plants having elevated exhaust pressure from a steam turbine. The elevated exhaust pressure from the steam turbine may result in an elevated condensate pressure and temperature. A cooling system removes sensible heat from the condensate. The elevated condensate temperature results in a greater temperature difference between the condensate and the working medium in the cooling system. The amount of heat that is dissipated by the cooling system is proportionate to the heat transfer surface and the temperature difference between the condensate and the working medium. As a result of the greater temperature difference, a smaller cooling system configured to operate with a higher temperature condensate may be utilized in place of a larger cooling system configured to operate with lower temperature condensate. By reducing the size of the cooling system, the overall size of the combined cycle power plant may be reduced.