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. 15, 2011
Filed:
Oct. 16, 2007
Vinay Jonnalagadda, Oviedo, FL (US);
Dennis H. Lemieux, Casselberry, FL (US);
Visvanathan Ramesh, Plainsboro, NJ (US);
Matthias Voigt, Lawrenceville, NJ (US);
Vinay Jonnalagadda, Oviedo, FL (US);
Dennis H. Lemieux, Casselberry, FL (US);
Visvanathan Ramesh, Plainsboro, NJ (US);
Matthias Voigt, Lawrenceville, NJ (US);
Siemens Corporation, Iselin, NJ (US);
Siemens Energy, Inc., Orlando, FL (US);
Abstract
Methods for maximum scene surface temperature estimation for blades with reflective surface properties in advanced stationary gas turbines are disclosed. The approach utilizes high speed infrared imagery provided by an online monitor system using a focal plan array (FPA) for near-infrared monitoring during engine runtime up to base load. The one waveband method for temperature estimation is assumed as starting point. A lower surface emissivity and higher surface reflectance of thermal barrier coating (TBC) in near-infrared can cause systematic estimation errors. Methods using the one wave band method, with the purpose to reduce estimation errors for maximum temperatures are also disclosed. Theoretical results, data from numerical simulations, and real data from engine test are provided. A system for performing temperature estimation methods is also disclosed.