Jitendra K Kumar

US Patent:

7461544, Dec 9, 2008

Filed:

Feb 24, 2006

Appl. No.:

11/307822

Inventors:

Jitendra Kumar - Mableton GA, US
Abhay S. Kant - Bangalore IN, US
Vivek V. Badami - Schenectady NY, US
Nicholas Giannakopoulos - Acworth GA, US

Assignee:

General Electric Company - Schenetady NY

International Classification:

G01M 15/00
F01K 13/02

US Classification:

7311202, 60660

Abstract:

A method of detecting water induction in a steam turbine that may include the steps of: measuring the temperature of one of the steam lines of the steam turbine at regular intervals; recording the temperature measurements; and determining, from the recorded temperature measurements, whether there has been a sharp decrease followed by a gradual rise in the temperature of the steam line. The method further may include the steps of calculating the rate of change of the decrease in temperature of the steam line and the rate of change of the increase in temperature of the steam line. The sharp decrease followed by a gradual rise in the temperature of the steam line may include a decrease in temperature followed by an increase in temperature wherein the rate of change of the decrease in temperature exceeds the rate of change of the rise in temperature.

US Patent:

7742881, Jun 22, 2010

Filed:

Aug 2, 2007

Appl. No.:

11/832755

Inventors:

Vasanth Muralidharan - Chennai Tamil Nadu, IN
Abhay Sudhakarrao Kant - Dubai, AE
S. N. Arul Saravanapriyan - Bangalore Karnataka, IN
Mahalakshmi Balasubramaniam S B - Bangalore Karnataka, IN
Jitendra Kumar - Mableton GA, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

G01B 21/20
G01B 21/00
G06F 19/00

US Classification:

702 33, 33517, 73460, 73487, 738658, 340679, 3406863, 702187, 702189

Abstract:

A method to determine eccentricity of a rotor in a turbine including: collecting sensor data of rotor eccentricity for a plurality of startup operations; establishing a baseline eccentricity value using the sensor data corresponding to a selected startup operation; determining an eccentricity value using the filtered sensor data for each of a plurality of startup operations subsequent to the selected startup operation; determining a rotor eccentricity difference between the baseline eccentricity value and each of the eccentricity values for the plurality of startup operations subsequent to the selected startup operation, and reporting a rotor eccentricity condition based on the rotor eccentricity difference.

US Patent:

20120323530, Dec 20, 2012

Filed:

Jun 20, 2011

Appl. No.:

13/163979

Inventors:

Maria Cecilia Mazzaro - Greenville SC, US
Fernando Javier D' Amato - Niskayuna NY, US
Jitendra Kumar - Atlanta GA, US
Vivek Venugopal Badami - Niskayuna NY, US
Mahalakshmi Shunmugham Balasubramaniam - Bangalore, IN
Roopesh Bhaskaran Nagathil - Smyrna GA, US

Assignee:

GENERAL ELECTRIC COMPANY - Schenectady NY

International Classification:

G06F 15/00

US Classification:

702182

Abstract:

Systems and methods of estimating an efficiency of a section of a steam turbine are disclosed. The systems and methods include determining a set of measurement data obtained directly from a set of sensors on the steam turbine, determining a set of derived data relating to measurements that cannot be obtained directly from the set of sensors, and estimating the efficiency of the section using the set of measurement data and the set of derived data. The systems and methods disclosed use physics-based models combined with nonlinear filtering techniques to estimate steam turbines' efficiencies when physical sensors are not available. These models capture the behavior of different components of the power plant, including all steam turbine sections, admission and crossover pipes, flow junctions, admission and control valves.

US Patent:

20130110424, May 2, 2013

Filed:

Oct 28, 2011

Appl. No.:

13/284627

Inventors:

Roopesh Bhaskaran Nagathil - Atlanta GA, US
Jitendra Kumar - Mableton GA, US
Dattaraj Jagdish Rao - Virginia Beach VA, US
David Lee Rogers - Marietta GA, US
Difei Wang - Marietta GA, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

G06F 19/00

US Classification:

702 62

Abstract:

A power meter includes a power detection unit to sense a level of consumed power in at least a portion of a building and to output sensed power level data, a timing unit to designate a predetermined period of time, and an analysis unit. The analysis unit receives the sensed power level data, determines whether the level of consumed power is abnormal by generating a representative value representative of the level of consumed power over the predetermined period of time, compares the representative value to a threshold value, and outputs an alert to a remote device when it is determined that the consumed power is abnormal based at least on the comparison of the representative value to the threshold value.

US Patent:

43148557, Feb 9, 1982

Filed:

Dec 17, 1979

Appl. No.:

6/104379

Inventors:

Chuan C. Chang - Berkeley Heights NJ
Jitendra Kumar - Bridgewater NJ

Assignee:

Bell Telephone Laboratories, Incorporated - Murray Hill NJ

International Classification:

B08B 308
B08B 310

US Classification:

134 3

Abstract:

Contaminants that accumulate on test probes utilized to contact aluminum pads on integrated circuit chips cause the probe resistance to become unacceptably high. As disclosed herein, the contaminants (predominantly a mixture of aluminum and aluminum oxide) are substantially removed by immersing the probes in boiling water. Adding small quantities of phosphoric and/or hydrofluoric acids to the water further improves the cleaning action.