Patents by Inventor Jamison W. Janawitz
Jamison W. Janawitz has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9377397Abstract: 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.Type: GrantFiled: December 9, 2009Date of Patent: June 28, 2016Assignee: The Babcock & Wilcox CompanyInventors: Yu Wang, William Howard Eberhardt, Mark Wayne Holt, Jamison W. Janawitz
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Patent number: 8151571Abstract: 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.Type: GrantFiled: September 18, 2009Date of Patent: April 10, 2012Assignee: General Electric CompanyInventors: Peter Martin Maly, Jamison W. Janawitz, William Eberhardt, Mark Holt, Yu Wang
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Patent number: 8038776Abstract: An inlet air filtration system for a gas turbine includes, in an exemplary embodiment, an air plenum, and a plurality of filter elements mounted inside the air plenum, with each filter element including a support structure. The inlet air filtration system also includes a plurality of electrodes positioned proximate the plurality of filter elements, where the electrodes are coupled to a power source which supplies a voltage to the electrodes. The voltage is sufficient to establish an electrostatic field between the electrodes and the filter elements, and is sufficient to produce a corona discharge from the electrodes, wherein an amount of current applied to the filter elements is about 0.1 ?A/ft2 to about 15 ?A/ft2.Type: GrantFiled: March 23, 2010Date of Patent: October 18, 2011Assignee: BHA Group, Inc.Inventors: Jamison W. Janawitz, Bradley S. Rogers, James Easel Roberts, Thomas Shannon Eckhoff, Robert W. Taylor
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Publication number: 20110132063Abstract: 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.Type: ApplicationFiled: December 9, 2009Publication date: June 9, 2011Applicant: General Electric CorporationInventors: Yu Wang, William Howard Eberhardt, Mark Wayne Holt, Jamison W. Janawitz
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Publication number: 20110067408Abstract: Certain embodiments of the invention may include 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.Type: ApplicationFiled: September 18, 2009Publication date: March 24, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Peter Martin Maly, Jamison W. Janawitz, William Eberhardt, Mark Holt, Yu Wang
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Publication number: 20100175389Abstract: An inlet air filtration system for a gas turbine includes, in an exemplary embodiment, an air plenum, and a plurality of filter elements mounted inside the air plenum, with each filter element including a support structure. The inlet air filtration system also includes a plurality of electrodes positioned proximate the plurality of filter elements, where the electrodes are coupled to a power source which supplies a voltage to the electrodes. The voltage is sufficient to establish an electrostatic field between the electrodes and the filter elements, and is sufficient to produce a corona discharge from the electrodes, wherein an amount of current applied to the filter elements is about 0.1 ?A/ft2 to about 15 ?A/ft2.Type: ApplicationFiled: March 23, 2010Publication date: July 15, 2010Inventors: Jamison W. Janawitz, Bradley S. Rogers, James Easel Roberts, Thomas Shannon Eckhoff, Robert W. Taylor
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Publication number: 20100126135Abstract: In one embodiment, a method includes converting a hydrocarbon feedstock into a gas mixture. The method also includes burning a first portion of the gas mixture within a combustion chamber. The method further includes converting a second portion of the gas mixture into methanol during periods of low demand for the gas mixture within the combustion chamber.Type: ApplicationFiled: November 26, 2008Publication date: May 27, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Narendra Digamber Joshi, Jamison W. Janawitz
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Patent number: 7695551Abstract: An inlet air filtration system for a gas turbine includes, in an exemplary embodiment, an air plenum, and a plurality of filter elements mounted inside the air plenum, with each filter element including a support structure. The inlet air filtration system also includes a plurality of electrodes positioned proximate the plurality of filter elements, where the electrodes are coupled to a power source which supplies a voltage to the electrodes. The voltage is sufficient to establish an electrostatic field between the electrodes and the filter elements, and at the same time, the voltage is sufficient to produce a corona discharge from the electrodes.Type: GrantFiled: March 12, 2008Date of Patent: April 13, 2010Assignee: BHA Group, Inc.Inventors: Jamison W. Janawitz, Bradley S. Rogers, James Easel Roberts, Thomas Shannon Eckhoff
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Publication number: 20090229468Abstract: An inlet air filtration system for a gas turbine includes, in an exemplary embodiment, an air plenum, and a plurality of filter elements mounted inside the air plenum, with each filter element including a support structure. The inlet air filtration system also includes a plurality of electrodes positioned proximate the plurality of filter elements, where the electrodes are coupled to a power source which supplies a voltage to the electrodes. The voltage is sufficient to establish an electrostatic field between the electrodes and the filter elements, and at the same time, the voltage is sufficient to produce a corona discharge from the electrodes.Type: ApplicationFiled: March 12, 2008Publication date: September 17, 2009Inventors: Jamison W. Janawitz, Bradley S. Rogers, James Easel Roberts, Thomas Shannon Eckhoff
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Patent number: 7527674Abstract: An inlet air treatment system for a gas turbine includes, in an exemplary embodiment, an air plenum, and a moisture removal system, and an air filtration system located downstream from the moisture removal system. The moisture removal system includes a plurality of S-shaped vanes, and a mesh structure downstream from the plurality of S-shaped vanes. The air filtration system includes a plurality of filter elements, with each filter element including a support structure. The inlet air filtration system also includes a plurality of electrodes positioned proximate the plurality of filter elements, where the electrodes are coupled to a power source which supplies a voltage to the electrodes. The voltage is sufficient to establish an electrostatic field between the electrodes and the filter elements, and at the same time, the voltage is sufficient to produce a corona discharge from the electrodes.Type: GrantFiled: March 12, 2008Date of Patent: May 5, 2009Assignee: BHA Group, Inc.Inventors: Jamison W. Janawitz, Bradley S. Rogers, James Easel Roberts, Thomas Shannon Eckhoff