Patents by Inventor Indrajit Mazumder
Indrajit Mazumder 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: 10772317Abstract: An inlet air filtration unit for a gas turbine includes an inlet filter house having an upstream surface through which air is ingested. A plurality of weather hoods is secured to the upstream surface. A wave-generating system is installed on or proximate to the plurality of weather hoods, the wave-generating system emitting waves that deter pests from the inlet filter house. A method of deterring pests from entering an inlet filter house of an inlet air filtration system is also provided. The method includes: installing a wave-generating system proximate to or on a weather hood on an upstream surface of the inlet filter house; and energizing the wave-generating system to produce energy waves across the upstream surface of the inlet filter house.Type: GrantFiled: January 30, 2019Date of Patent: September 15, 2020Assignee: General Electric CompanyInventors: Dinesh Venugopalsetty, Richard Lynn Loud, Sudhir Ramesh Chaudhari, Venugopala Durwasula Raju, Indrajit Mazumder
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Publication number: 20190246624Abstract: An inlet air filtration unit for a gas turbine includes an inlet filter house having an upstream surface through which air is ingested. A plurality of weather hoods is secured to the upstream surface. A wave-generating system is installed on or proximate to the plurality of weather hoods, the wave-generating system emitting waves that deter pests from the inlet filter house. A method of deterring pests from entering an inlet filter house of an inlet air filtration system is also provided. The method includes: installing a wave-generating system proximate to or on a weather hood on an upstream surface of the inlet filter house; and energizing the wave-generating system to produce energy waves across the upstream surface of the inlet filter house.Type: ApplicationFiled: January 30, 2019Publication date: August 15, 2019Inventors: Dinesh VENUGOPALSETTY, Richard Lynn LOUD, Sudhir Ramesh CHAUDHARI, Venugopala Durwasula RAJU, Indrajit MAZUMDER
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Patent number: 9719418Abstract: In a turbomachine having an inlet, a compressor, and a turbine, a closed loop sends fluid from a stage of the compressor to a heat exchanger in the turbine and to the inlet. The closed loop heats the fluid, cools the turbine, and delivers heated fluid to the inlet. A mixer can be interposed between the heat exchanger and the inlet to mix fluid from the heat exchanger with compressor discharge fluid, delivering the mixed fluid to the inlet. The mixer can control flow received so that desired temperature and/or flow rate can be provided to the inlet.Type: GrantFiled: April 1, 2013Date of Patent: August 1, 2017Assignee: GENERAL ELECTRIC COMPANYInventors: Prashant Kumar, Sabarinath Devarajan, Vivekanandhan Thiruvettipuram Madhivanan, Indrajit Mazumder, Hemant Puri, Chandrasekhar Pushkaran, Rajarshi Saha
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Publication number: 20160273377Abstract: A cooling arrangement for a gas turbine engine includes a discharge channel for airflow from a compressor, a first cooling channel, and at least one aperture providing communication between the flow of air through the discharge channel and the first cooling channel. A restrictor device in the aperture regulates the flow of air between the discharge channel and the first cooling channel. The restrictor device deforms to vary air flowing through the aperture in response to a physical condition of the engine. This physical condition of the engine may be that of the temperature of air flowing through the discharge channel or the power output of the gas turbine engine. The restrictor device may be a boreplug, which may be a two-way shape memory alloy.Type: ApplicationFiled: March 18, 2016Publication date: September 22, 2016Inventors: Sheo Narain GIRI, Sanjeev Kumar JHA, Bhaskar PEMMI, Harish BOMMANAKATTE, Santhosh DONKADA, Krishna Kishore GUMPINA, Indrajit MAZUMDER, Rajarshi SAHA
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Patent number: 9447732Abstract: Embodiments of the present disclosure are directed towards a system that includes a recirculation system. The recirculation system includes a compressor discharge air line extending from a compressor to an air intake. The compressor discharge air line is configured to flow a compressor discharge air flow, and the air intake is configured to supply an air flow to the compressor. An ejector is disposed along the compressor discharge air line between the compressor and the air intake. The ejector is configured to receive and mix the compressor discharge air flow and a turbine exhaust flow to form a first mixture.Type: GrantFiled: November 26, 2012Date of Patent: September 20, 2016Assignee: General Electric CompanyInventors: Indrajit Mazumder, Rajarshi Saha, Seyfettin Can Gulen, Sabarinath Devarajan, Prashant Kumar
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Patent number: 9297310Abstract: A cooling arrangement for a gas turbine engine. The cooling arrangement comprises a discharge channel for air flow from a compressor, a first cooling channel and at least one aperture providing communication between the flow of air through the discharge channel and the first cooling channel. A restrictor device in the aperture regulates the flow of air between the discharge channel and the first cooling channel. The restrictor device deforms to vary air flowing through the aperture in response to a physical condition of the engine. This physical condition of the engine may be that of the temperature of air flowing through the discharge channel, the restrictor device responding to regulate the flow of air based on that temperature. The restrictor device may be a two-way shape memory alloy.Type: GrantFiled: October 18, 2012Date of Patent: March 29, 2016Assignee: General Electric CompanyInventors: Sheo Narain Giri, Sanjeev Kumar Jha, Bhaskar Pemmi, Harish Bommanakatte, Santhosh Donkada, Krishna Kishore Gumpina, Indrajit Mazumder, Rajarshi Saha
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Patent number: 9279365Abstract: The present application provides a combined cycle system. The combined cycle system may include a compressor water wash system in communication with a compressor and a water wash flow, a combustor water injection system in communication with a combustor and an injection flow, and a transient power augmentation system in communication with the compressor, the combustor, and a flow of supplemental water.Type: GrantFiled: September 4, 2012Date of Patent: March 8, 2016Assignee: General Electric CompanyInventors: Indrajit Mazumder, Rajarshi Saha
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Patent number: 9261022Abstract: A system for controlling a flow rate of a compressed cooling medium between a compressor section and a turbine section of a gas turbine includes a flow path that is defined between the compressor section and the turbine section of the gas turbine and a thermally actuated variable flow valve disposed within the flow path. The variable flow valve defines an opening that changes in size based on a temperature of the compressed cooling medium flowing therethrough.Type: GrantFiled: December 7, 2012Date of Patent: February 16, 2016Assignee: GENERAL ELECTRIC COMPANYInventors: Rajarshi Saha, Santhosh Donkada, Indrajit Mazumder, Bhaskar Pemmi
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Patent number: 9200533Abstract: Various embodiments include apparatuses and related methods for determining the enthalpy of steam. In some embodiments, an apparatus includes: an extraction conduit fluidly connected with a steam turbine section, the extraction conduit for obtaining wet steam from the steam turbine section; a mixing chamber fluidly connected with the extraction conduit; an injector fluidly connected with the mixing chamber, the injector for providing dry steam to the mixing chamber for mixing with the wet steam from the steam turbine section to produce a sample mixture; and an enthalpy detection system fluidly connected with the mixing chamber, the enthalpy detection system configured to determine an enthalpy of the sample mixture.Type: GrantFiled: November 19, 2012Date of Patent: December 1, 2015Assignee: General Electric CompanyInventors: Santhosh Donkada, Indrajit Mazumder, Bhaskar Pemmi, Rajarshi Saha, Anil Kumar Sharma
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Publication number: 20150322822Abstract: In one or more of the inventive aspects, a boiler feedwater pump may provide feedwater to a heat recovery steam generator, and the heated feedwater may be used for liquid fuel heating in a liquid fuel heater. The feedwater from the boiler feedwater pump may also be used for water injection in a combustor.Type: ApplicationFiled: May 12, 2014Publication date: November 12, 2015Applicant: General Electric CompanyInventors: Hatim Khandwavla, Frank Douglas Beadie, Rajarshi Saha, Indrajit Mazumder, Durgarasad J
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Patent number: 9103285Abstract: A purge system and liquid fuel atomizing system, a system including a purge system and liquid fuel atomizing system, and a method of purging and atomizing are disclosed. The purging involves a first nozzle, a second nozzle, a third nozzle, and a staged compression system having a first stage and a second stage. The first stage is configured to selectively direct a first pressurized fluid stream to the first nozzle and the second nozzle. The second stage is configured to selectively direct a second pressurized fluid stream to the third nozzle.Type: GrantFiled: January 3, 2011Date of Patent: August 11, 2015Assignee: General Electric CompanyInventors: Venugopala Raju, Anil Kumar Sharma, Indrajit Mazumder, Bhaskar Pemmi, Rajarshi Saha
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Publication number: 20140294566Abstract: In a turbomachine having an inlet, a compressor, and a turbine, a closed loop sends fluid from a stage of the compressor to a heat exchanger in the turbine and to the inlet. The closed loop heats the fluid, cools the turbine, and delivers heated fluid to the inlet. A mixer can be interposed between the heat exchanger and the inlet to mix fluid from the heat exchanger with compressor discharge fluid, delivering the mixed fluid to the inlet. The mixer can control flow received so that desired temperature and/or flow rate can be provided to the inlet.Type: ApplicationFiled: April 1, 2013Publication date: October 2, 2014Applicant: General Electric CompanyInventors: Prashant Kumar, Sabarinath Devarajan, Vivekanandhan Thiruvettipuram Madhivanan, Indrajit Mazumder, Hemant Puri, Chandrasekhar Pushkaran, Rajarshi Saha
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Publication number: 20140157791Abstract: A system for controlling a flow rate of a compressed cooling medium between a compressor section and a turbine section of a gas turbine includes a flow path that is defined between the compressor section and the turbine section of the gas turbine and a thermally actuated variable flow valve disposed within the flow path. The variable flow valve defines an opening that changes in size based on a temperature of the compressed cooling medium flowing therethrough.Type: ApplicationFiled: December 7, 2012Publication date: June 12, 2014Applicant: General Electric CompanyInventors: Rajarshi Saha, Santhosh Donkada, Indrajit Mazumder, Bhasker Pemmi
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Patent number: 8739510Abstract: A combined cycle power plant includes a gas turbomachine, a steam turbomachine operatively connected to the gas turbomachine, a heat recovery steam generator (HRSG) operatively connected to the gas turbomachine and the steam turbomachine, and a cooling system fluidly connected to the gas turbomachine. The cooling system is configured and disposed to pass a coolant through the gas turbomachine to absorb heat. A condensate system is fluidly connected to the steam turbine and the HRSG. The condensate system is configured and disposed to deliver a steam condensate from the steam turbine to the HRSG. A heat exchange member is fluidly connected to the cooling system and the condensate system. The heat exchange member is configured and disposed to transfer heat entrained in the coolant to the steam condensate.Type: GrantFiled: October 28, 2010Date of Patent: June 3, 2014Assignee: General Electric CompanyInventors: Rakesh Sivasankaran, Timothy Russell Bilton, Hatim Khandwavala, Indrajit Mazumder, Ezhil Nargunan
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Publication number: 20140144124Abstract: Embodiments of the present disclosure are directed towards a system that includes a recirculation system. The recirculation system includes a compressor discharge air line extending from a compressor to an air intake. The compressor discharge air line is configured to flow a compressor discharge air flow, and the air intake is configured to supply an air flow to the compressor. An ejector is disposed along the compressor discharge air line between the compressor and the air intake. The ejector is configured to receive and mix the compressor discharge air flow and a turbine exhaust flow to form a first mixture.Type: ApplicationFiled: November 26, 2012Publication date: May 29, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Indrajit Mazumder, Rajarshi Saha, Seyfettin Can Gulen, Sabarinath Devarajan, Prashant Kumar
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Publication number: 20140140806Abstract: Various embodiments include apparatuses and related methods for determining the enthalpy of steam. In some embodiments, an apparatus includes: an extraction conduit fluidly connected with a steam turbine section, the extraction conduit for obtaining wet steam from the steam turbine section; a mixing chamber fluidly connected with the extraction conduit; an injector fluidly connected with the mixing chamber, the injector for providing dry steam to the mixing chamber for mixing with the wet steam from the steam turbine section to produce a sample mixture; and an enthalpy detection system fluidly connected with the mixing chamber, the enthalpy detection system configured to determine an enthalpy of the sample mixture.Type: ApplicationFiled: November 19, 2012Publication date: May 22, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Santhosh Donkada, Indrajit Mazumder, Bhaskar Pemmi, Rajarshi Saha, Anil Kumar Sharma
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Publication number: 20140130478Abstract: A gas turbomachine includes a compressor portion, a turbine portion operatively connected to the compressor portion, a combustor assembly including at least one combustor fluidically connected to the turbine portion, and an accessory mechanically linked with and driven by the turbine portion. The gas turbomachine also includes a fuel pre-heat system including a fuel pre-heat element having a fuel circuit fluidically connected to the at least one combustor arranged in a heat exchange relationship with a heating medium circuit fluidically connected to at least one of the compressor portion, the turbine portion, and the accessory.Type: ApplicationFiled: November 9, 2012Publication date: May 15, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Bhaskar Pemmi, Joseph John, Indrajit Mazumder
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Publication number: 20140123623Abstract: A gas turbomachine system includes a compressor portion including an inlet portion, a turbine portion fluidically connected to, and mechanically linked with, the compressor portion, and a combustor assembly including at least one combustor fluidically connected to the turbine portion. An inlet system is fluidically connected to the inlet portion of the compressor portion. The inlet system includes an inlet chiller. An inlet chiller condensate recovery system is fluidically connected to the inlet system. The inlet chiller condensate recovery system includes an inlet fluidically connected to the inlet chiller and an outlet fluidically connected to one of the compressor portion and the combustor assembly.Type: ApplicationFiled: November 8, 2012Publication date: May 8, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Joseph John, Indrajit Mazumder, Bhaskar Pemmi
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Publication number: 20140109580Abstract: A cooling arrangement for a gas turbine engine. The cooling arrangement comprises a discharge channel for air flow from a compressor, a first cooling channel and at least one aperture providing communication between the flow of air through the discharge channel and the first cooling channel. A restrictor device in the aperture regulates the flow of air between the discharge channel and the first cooling channel. The restrictor device deforms to vary air flowing through the aperture in response to a physical condition of the engine. This physical condition of the engine may be that of the temperature of air flowing through the discharge channel, the restrictor device responding to regulate the flow of air based on that temperature. The restrictor device may be a two-way shape memory alloy.Type: ApplicationFiled: October 18, 2012Publication date: April 24, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Sheo Narain GIRI, Sanjeev Kumar JHA, Bhaskar PEMMI, Harish BOOMANAKATTE, Santhosh DONKADA, Krishna Kishore GUMPINA, Indrajit MAZUMDER, Rajarshi SAHA
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Publication number: 20140060067Abstract: The present application provides a combined cycle system. The combined cycle system may include a compressor water wash system in communication with a compressor and a water wash flow, a combustor water injection system in communication with a combustor and an injection flow, and a transient power augmentation system in communication with the compressor, the combustor, and a flow of supplemental water.Type: ApplicationFiled: September 4, 2012Publication date: March 6, 2014Applicant: General Electric CompanyInventors: Indrajit Mazumder, Rajarshi Saha