Mark Wayne Holt

US Patent:

7562556, Jul 21, 2009

Filed:

Oct 2, 2006

Appl. No.:

11/541970

Inventors:

David F. Johnston - Poquoson VA, US
Jennifer Lynn Molaison - Marietta GA, US
Terry Farmer - Kearney MO, US
William Eberhardt - Cherry Hill NJ, US
Mark Holt - Emmaus PA, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

B08B 9/027
B08B 7/02
G01N 1/22
F23J 3/00

US Classification:

73 2331, 15 94, 1510405, 15406, 7386381, 134 221, 134166 C

Abstract:

An apparatus for cleaning a continuous emissions monitor system that is in fluid communication with a flue stack conducting exhaust gas from a combustion source. The apparatus comprises a housing and a probe mounted in the housing. The probe is tubular and in fluid communication with the flue stack to acquire a sample of gas from the flue stack. The probe tends to have deposits from the exhaust gas accumulate on the inner walls of the probe. A device imparts cleaning energy to the probe for dislodging accumulated deposits from the inner walls of the probe.

US Patent:

8020457, Sep 20, 2011

Filed:

Aug 8, 2008

Appl. No.:

12/188672

Inventors:

Mark Wayne Holt - Emmaus PA, US
William Howard Eberhardt - Cherry Hill NJ, US

Assignee:

Babcock & Wilcox Power Generation Group, Inc. - Barberton OH

International Classification:

G01N 1/22

US Classification:

7386311

Abstract:

An apparatus for use in a sample monitoring system is provided and includes a first enclosure configured to enclose a probe body into which the sample is drawn, a sensor coupled to the probe body and configured to sense a chemical composition of the sample and at least one first heater configured to heat an interior of the first enclosure, a second enclosure configured to enclose a pump coupled to the probe body and configured to draw the sample therein and a second heater configured to heat the pump, and a third enclosure configured to enclose a pump motor configured to control an operation of the pump and to support heating controlling units configured to control the at least one first heater and the second heater.

US Patent:

8119409, Feb 21, 2012

Filed:

Oct 15, 2007

Appl. No.:

11/872542

Inventors:

Mark Wayne Holt - Emmaus PA, US
William Howard Eberhardt - Cherry Hill NJ, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

G01N 33/20
B05B 17/04

US Classification:

436 81, 239136, 239303, 239337, 239 8

Abstract:

A mercury ionic gas standard generator for use in the continuous emissions monitoring of exhaust flue gas streams is disclosed. More specifically, the mercury ionic gas standard generator uses a reservoir being coated with an inert silicon-based coating for transporting a volume of an aqueous ionic mercury solution to a liquid mass flow controller and vaporizer.

US Patent:

8151571, Apr 10, 2012

Filed:

Sep 18, 2009

Appl. No.:

12/562235

Inventors:

Peter Martin Maly - Lake Forrest CA, US
Jamison W. Janawitz - Overland Park KS, US
William Eberhardt - Cherry Hill NJ, US
Mark Holt - Emmaus PA, US
Yu Wang - North Wales PA, US

Assignee:

General Electric Company - Schenectady NY

International Classification:

F02C 1/00

US Classification:

60772, 60 395, 60773

Abstract:

Systems and methods for controlling combustion emission parameters associated with a gas turbine combustor. The method can include providing an optical path through a gas turbine exhaust duct, propagating light along the optical path, measuring exhaust species absorption of the light within the gas turbine exhaust duct, and controlling at least one of the combustion parameters based at least in part on the measured exhaust species absorption.

US Patent:

8443648, May 21, 2013

Filed:

Jun 29, 2007

Appl. No.:

11/824089

Inventors:

Mark Holt - Emmaus PA, US
William Eberhardt - Cherry Hill NJ, US

Assignee:

Babcock & Wilcox Power Generation Group, Inc. - Barberton OH

International Classification:

G01N 33/00

US Classification:

73 103, 73 106, 73 3105

Abstract:

A continuous emissions monitoring system is in fluid communication with a flue stack conducting exhaust gas from a combustion source. The continuous emissions monitor system comprises an analyzer for measuring concentrations of an analyte present in the exhaust gas. A probe is in fluid communication with the flue stack to acquire a sample of exhaust gas from the flue stack. The probe is also in fluid communication with and located upstream of the analyzer. The probe tends to remove analyte from the sample. A calibration checking system is in fluid communication with the probe. The calibration checking system includes a source that provides a flow of a known concentration of calibration material to be measured by the analyzer. The calibration material is the same as the analyte. A humidifier is associated with the source to provide moisture to a flow of calibration material.

US Patent:

8528429, Sep 10, 2013

Filed:

Jan 20, 2010

Appl. No.:

12/690744

Inventors:

Mark Wayne Holt - Emmaus PA, US

Assignee:

Babcock & Wilcox Power Generation Group, Inc. - Barberton OH

International Classification:

G01D 21/00
G01N 23/00

US Classification:

738665, 74 55

Abstract:

Systems and methods are provided for stabilizing an emissions instrument. The emissions instrument includes an emissions sensor. The emissions sensor may be coupled to a gyro stabilizer. The gyro stabilizer may stabilize the emissions sensor, thus resulting in a more accurate and reliable emissions instrument.

US Patent:

20080282764, Nov 20, 2008

Filed:

May 15, 2007

Appl. No.:

11/803617

Inventors:

Mark Holt - Emmaus PA, US
William Eberhardt - Cherry Hill NJ, US

International Classification:

G01N 33/00
G01N 33/22

US Classification:

73 103, 73 2331

Abstract:

A continuous emissions monitoring system is in fluid communication with a flue stack conducting exhaust gas from a combustion source. The continuous emissions monitor system comprises an analyzer for measuring concentrations of an analyte present in the exhaust gas. A probe is in fluid communication with the flue stack to acquire a sample of exhaust gas from the flue stack. The probe is also in fluid communication with and located upstream of the analyzer. The probe tends to remove analyte from the sample. A calibration checking system is in fluid communication with the probe. The calibration checking system includes a source that provides a flow of a known concentration of calibration material to be measured by the analyzer. The calibration material is the same as the analyte. A humidifier is associated with the source to provide moisture to a flow of calibration material. The moisture acts to cleanse removed analyte from the probe and thereby enable an accurate measurement of the concentration of the calibration material.

US Patent:

20110132063, Jun 9, 2011

Filed:

Dec 9, 2009

Appl. No.:

12/633862

Inventors:

Yu Wang - North Wales PA, US
William Howard Eberhardt - Cherry Hill NJ, US
Mark Wayne Holt - Emmaus PA, US
Jamison W. Janawitz - Overland Park KS, US

Assignee:

General Electric Corporation - Schenectady NY

International Classification:

G01N 21/93

US Classification:

73 103

Abstract:

A method is provided of calibrating a system that detects presence of a pollution component within exhaust gases proceeding along an exhaust passageway. A measurement cell of a probe is isolated by movement of either the entire probe or a shield within the probe from the exhaust gas to allow reference gas to be detected by a laser beam in the mid-infrared range in the measurement cell to calibrate the system. In another example, a laser source is placed on one side of an exhaust passageway and a detector is placed on the other side. A reference cell is provided that is used to receive reference gas and calibrate the system. In yet another example, the exhaust gas is extracted from the passageway and is measured in a reference cell. The reference cell is also filled with reference gas when it is desired to calibrate the system.