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Dongjai Lee

from Greenville, SC
Age ~57
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Also known as:
Dongia Lee, Jai Lee Dong, Lee Dongjai
Related to:
Chulung Lee, 56Soo D Lee, 95Kookho LeeSeung S Lee, 51
Connected to:
A Lee, 45Abi A Lee, 31Abigail LeeAbu B Lee, 66Adela C Lee, 64Adelyn S Lee, 39Adrian J Lee, 36Adriane C Lee, 57Aen H Lee, 44Aeren Lee, 33

Dongjai Lee Phones & Addresses

  • Greenville, SC
  • Greer, SC
  • Claremont, CA
  • Russellville, AR
  • Plano, TX
  • Lewisville, TX
  • Simi Valley, CA
  • State College, PA

Work

Company: General electric Sep 2005 Position: Lead engineer

Education

Degree: Ph. D. School / High School: Penn State University 2005 Specialities: Acoustics

Industries

Electrical/Electronic Manufacturing

Resumes

Resumes

Dongjai Lee Photo 1

Lead Engineer At General Electric

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Position:
Lead Engineer at General Electric
Location:
Greenville, South Carolina Area
Industry:
Electrical/Electronic Manufacturing
Work:
General Electric since Sep 2005
Lead Engineer
Renault Samsung Motors Mar 1995 - Jul 1998
Manager
Volvo Construction Equipment Feb 1992 - Mar 1995
Engineer
Education:
Penn State University 2005
Ph. D., Acoustics Seoul National University 1990 - 1992
MS, Mechanical Engineering : Control Seoul National University 1986 - 1990
BS, Mechanical Engineering

Publications

Us Patents

Methods, Systems And/Or Apparatus Relating To Turbine Blade Monitoring

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US Patent:
8111161, Feb 7, 2012
Filed:
Feb 27, 2009
Appl. No.:
12/394142
Inventors:
Dongjai Lee - Greer SC, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
G08B 13/14
US Classification:
3405721, 3405391, 340 101
Abstract:
A method of monitoring a rotor blade of a turbine engine that includes a plurality of blades mounted to a rotor shaft, comprising: a) securing a RFID tag that includes an antenna to at least one of the rotor blades; b) securing a RFID reader on a stationary surface on the turbine engine in operational proximity to the RFID tag; and c) during operation of the turbine engine, monitoring the RFID tag with the RFID reader.

Method And System For Detecting A Crack On A Turbomachine Blade

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US Patent:
20110150626, Jun 23, 2011
Filed:
Dec 22, 2009
Appl. No.:
12/644327
Inventors:
Kevin W. Kinzie - Moore SC, US
Chingwei M. Shieh - Mechanicville NY, US
Dongjai Lee - Greer SC, US
International Classification:
F04D 29/00
G01N 29/04
US Classification:
415 1, 415118, 73660
Abstract:
Embodiments of the present invention may provide real-time monitoring of a compressor section to determine the possibility of a crack forming on a rotating blade. The present invention does not require the shutdown of the machine. The present invention may be configured to automatically raise an alarm if the acoustic signature of the compressor changes in way that may be consistent with the cracking of a blade.

Wind Turbine Torque-Speed Control

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US Patent:
20120027587, Feb 2, 2012
Filed:
May 12, 2011
Appl. No.:
13/106007
Inventors:
Dongjai Lee - Greer SC, US
Stefan Herr - Greenville SC, US
Klaus Ulrich Koegler - Rheine, DE
Assignee:
GENERAL ELECTRIC COMPANY - Schenectady NY
International Classification:
F03D 7/00
US Classification:
416 1, 416 44
Abstract:
The present subject matter relates to methods and systems for operating a wind turbine that, in some embodiments may include a gearbox. The wind turbine is provided with a blade having an adjustable pitch angle and the tip speed ratio (TSR) of the blade is monitored. In operation, the method and system is configured to increase the pitch angle of the blade concurrently with an increase in TSR to maintain turbine operation within an identified high power coefficient (Cp) operational region for the blade. TSR may be monitored by monitoring one of the velocity of the tip of the blade, wind speed, the rotational speed of the blade, or the rotational speed of a component within the gearbox.

System And Method For Validating Optimization Of A Wind Farm

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US Patent:
20170328348, Nov 16, 2017
Filed:
May 11, 2016
Appl. No.:
15/151573
Inventors:
- Schenectady NY, US
Stefan Kern - Munich, DE
Siddhanth Chandrashekar - Bangalore, IN
Dongjai Lee - Greer SC, US
Sara Delport - Munich, DE
Akshay Ambekar - Mauldin SC, US
Subhankar Ghosh - Bangalore, IN
International Classification:
F03D 17/00
F03D 7/04
G05B 15/02
Abstract:
The present disclosure is directed to systems and methods for generating one or more farm-level power curves for a wind farm that can be used to validate an upgrade provided to the wind farm. The method includes operating the wind farm in a first operational mode. Another step includes collecting turbine-level operational data from one or more of the wind turbines in the wind farm during the first operational mode. The method also includes aggregating the turbine-level operational data into a representative farm-level time-series. Another step includes analyzing the operational data collected during the first second operational mode. Thus, the method also includes generating one or more farm-level power curves for the first operational mode based on the analyzed operational data.

Active Systems And Methods For Producing Ultrasonic Sound Emissions From Wind Turbines

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US Patent:
20140377061, Dec 25, 2014
Filed:
Jun 25, 2013
Appl. No.:
13/926367
Inventors:
- Schenectady NY, US
Kevin Wayne Kinzie - Spartanburg SC, US
Dongjai Lee - Greer SC, US
James Robert Tobin - Simpsonville SC, US
Justin Richard Curtis - Simpsonville SC, US
Jonathan Henry Zalar - Greer SC, US
International Classification:
A01M 29/18
F03D 7/02
F03D 7/04
F03D 11/00
US Classification:
416 1, 416146 R, 119719
Abstract:
Methods for producing ultrasonic sound emissions from wind turbines, active systems for emitting ultrasonic sounds from wind turbines, and wind turbines are provided. In one embodiment, a method includes operating the wind turbine with an ultrasonic sound emitting device mounted on or within a component of the wind turbine, and receiving in a controller at least one indicator. The method further includes determining if an operating condition exists based on the at least one indicator, and supplying a fluid flow through an outlet of the ultrasonic sound emitting device such that an ultrasonic sound emission is produced by the ultrasonic sound emitting device if the operating condition exists.
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Dongjai Lee from Greenville, SC, age ~57 Get Report