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:
Nov. 25, 2014
Filed:
Nov. 04, 2011
Prabhakaran Saraswathi Rajesh, Bangalore, IN;
Rajarshi Saha, Bangalore, IN;
Durgaprasad Janapaneedi, Bangalore, IN;
Satyanarayana Venkata Ravindra Emani, Bangalore, IN;
Prabhakaran Saraswathi Rajesh, Bangalore, IN;
Rajarshi Saha, Bangalore, IN;
Durgaprasad Janapaneedi, Bangalore, IN;
Satyanarayana Venkata Ravindra Emani, Bangalore, IN;
General Electric Company, Schenectady, NY (US);
Abstract
A method for warming the rotor of a gas turbine during extended periods of downtime comprising feeding ambient air to an air blower; extracting compressed air from the air blower; feeding a portion of the compressed air to one side of a heat exchanger and steam (typically saturated) from e.g. a gas turbine heat recovery steam generator; passing the resulting heated air stream from the exchanger into and through into defined flow channels formed within the rotor; continuously monitoring the air temperature inside the rotor; and controlling the amount of air and steam fed to the heat exchanger using a feedback control loop that controls the amount of air and steam feeds to the exchanger and/or adjusts the flow rate of heated air stream into the rotor.