Ronald W Walker

US Patent:

6865890, Mar 15, 2005

Filed:

Jun 9, 2003

Appl. No.:

10/457601

Inventors:

Ronald Steven Walker - Orlando FL, US

International Classification:

F02C003/30
F02C009/48

US Classification:

60773, 60775, 60 393, 60 3955

Abstract:

A computerized system for accurate, independent verification of natural gas fuel flow in order to control HO injection flows. The HO is injected into a combustion system to control emissions. The system comprises:.

US Patent:

20090132202, May 21, 2009

Filed:

Oct 28, 2005

Appl. No.:

11/666398

Inventors:

Ronald Stephen Walker - Orlando FL, US
Philip S. Foster - Orlando FL, US

International Classification:

G21C 17/00

US Classification:

702184

Abstract:

A turbine and method for determining turbine maintenance. The method for determining hot gas path turbine maintenance comprises recording a number of part load starts (), base load starts (), fast starts (), full speed no load trips (), and load trips (); forming a weighted equivalent starts as a weighted summation of part load starts, base load starts, fast starts, full speed no load trips, and load trips; comparing the weighted equivalent starts to a predetermined threshold; and initiating the maintenance procedure. The method for determining rotor parts turbine maintenance comprises recording the number of fast starts, normal starts (), and elapsed time starts () from shutdown to restart; forming a weighted equivalent starts as a weighted combination of fast starts, normal starts, and elapsed time starts from shutdown to restart; comparing the weighted equivalent starts to a predetermined threshold; and if a weighted equivalent starts exceeds the predetermined threshold, initiating the maintenance procedure.