Patents by Inventor Shinoj Vakkayil Chandrabose
Shinoj Vakkayil Chandrabose 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: 8205451Abstract: A system and assemblies for pre-heating fuel in a combined cycle power plant are provided. A fuel supply system includes a water heater assembly configured to heat a flow of water using progressively higher grade heat from a multi-stage heat exchanger arrangement. The fuel supply system also includes a fuel heater that includes a first flow path coupled in flow communication with a fuel flow path wherein the fuel heater includes a second flow path coupled in flow communication with a flow path for the flow of water. The fuel heater is configured to transfer heat from the flow of water to the flow of fuel.Type: GrantFiled: August 5, 2008Date of Patent: June 26, 2012Assignee: General Electric CompanyInventors: Prakash Narayan, Shinoj Vakkayil Chandrabose
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Patent number: 8186142Abstract: Systems and a method for controlling a temperature of an exhaust gas stack are provided. The system includes a first heat exchanger positioned upstream in exhaust gas flow communication to an exhaust gas inlet to the stack, a second heat exchanger positioned upstream in exhaust gas flow communication to the first heat exchanger, and a water side conduit configured to direct a flow of relatively hot water from the second heat exchanger to the first heat exchanger such that a temperature of a flow of exhaust gas flowing through the first exchanger is maintained within a predetermined range.Type: GrantFiled: August 5, 2008Date of Patent: May 29, 2012Assignee: General Electric CompanyInventors: Prakash Narayan, Shinoj Vakkayil Chandrabose, Pemmi Bhaskar
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Patent number: 8074458Abstract: A heat recovery system for a turbomachine system includes a heat removal system and a refrigeration system. The heat removal system is fluidly connected to at least one component of the turbomachine system. The heat removal system passes a cooling fluid through the at least one component to absorb heat. The refrigeration system is operatively connected to the heat removal system. The refrigeration system extracts the heat from the cooling fluid passing through the at least one component of the turbomachine system to produce a cooling effect.Type: GrantFiled: July 31, 2008Date of Patent: December 13, 2011Assignee: General Electric CompanyInventors: Prakash Narayan Govindan, Anil Kumar Sharma, Shinoj Vakkayil Chandrabose
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Patent number: 8037703Abstract: A heat recovery system includes a source of waste heat, and a refrigeration system operatively connected to the source of waste heat. The refrigeration system is capable of extracting heat rejected from the source of waste heat to form a cooling medium.Type: GrantFiled: July 31, 2008Date of Patent: October 18, 2011Assignee: General Electric CompanyInventors: Anil Kumar Sharma, Shinoj Vakkayil Chandrabose, Prakash Narayan Govindan
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Publication number: 20110162386Abstract: A cooling circuit in a gas turbine includes an over board bleed (OBB) circuit bleeding air from a last stage of the compressor, an extracted air circuit extracting air from an upstream stage of the compressor, and an ejector receiving input from the OBB circuit and the extracted air circuit. Ejector outlet flow from the ejector is communicated to the turbine.Type: ApplicationFiled: January 4, 2010Publication date: July 7, 2011Inventors: Shinoj Vakkayil Chandrabose, Prakash Narayan Govindan, Bhaskar Pemmi, Anil Kumar Sharma
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Publication number: 20100275648Abstract: A system and method for reduction of diluent gaseous nitrogen (DGAN) compressor power in combined cycle power plant. A vapor absorption chiller (VAC) may be utilized to generate and transmit cooled fluid, such as water, to one or more heat exchangers located upstream and/or downstream of at least one compressor of the DGAN compressor system. Utilization of these heat exchangers may cool the temperature of the nitrogen, which may allow for less energy to be expended by the DGAN in compression of the nitrogen.Type: ApplicationFiled: May 4, 2009Publication date: November 4, 2010Applicant: GENERAL ELCTRIC COMPANYInventors: Indrajit Mazumder, Shinoj Vakkayil Chandrabose, Rajeshkumar Ravikumar, Rajarshi Saha
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Patent number: 7748210Abstract: A system is provided and includes a first condenser configured to fluidly receive a first steam supply and tower water and to output a first water supply, a second condenser configured to fluidly receive a first portion of a second steam supply and the first water supply and to output a second water supply, and a vapor-absorption-machine (VAM) configured to fluidly receive a second portion of the second steam supply and the second water supply by which a refrigeration cycle is conducted to thereby cool at least one of the tower water and a third water supply used to cool the tower water.Type: GrantFiled: July 31, 2008Date of Patent: July 6, 2010Assignee: General Electric CompanyInventors: Shinoj Vakkayil Chandrabose, Diego Fernando Rancruel, Prakash Narayan Govindan, Anil Kumar Sharma
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Patent number: 7730712Abstract: A system for use in a combined cycle or rankine cycle power plant using an air-cooled steam condenser is provided and includes a steam turbine from which first and second steam supplies are outputted at high and low respective pressures, an air-cooled condenser configured to fluidly receive and to air-cool at least the first steam supply via a supply of air, a cooling tower from which a first water supply is cycled, a chilling coil through which a second water supply water is cycled to thereby cool the supply of air, and a vapor-absorption-machine (VAM) configured to fluidly receive the second steam supply and the first water supply by which a refrigeration cycle is conducted to thereby cool the second water supply.Type: GrantFiled: July 31, 2008Date of Patent: June 8, 2010Assignee: General Electric CompanyInventors: Anil Kumar Sharma, Prakash Narayan, Shinoj Vakkayil Chandrabose
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Patent number: 7707818Abstract: An exhaust stack having a junction tube and a flue is provided. The flue has a silencer portion, a converging duct portion, a tubular portion, and a diverging diffuser portion. The silencer portion fluidly communicates with the junction tube. The silencer portion has a first hydraulic mean cross-sectional flow path, and the tubular portion has a second hydraulic mean cross-sectional flow path less than or equal to the first hydraulic mean cross-sectional flow path. The converging duct portion is coupled between the silencer portion and the tubular portion.Type: GrantFiled: February 11, 2008Date of Patent: May 4, 2010Assignee: General Electric CompanyInventors: Saravanan Nattanmai Venkataraman, Shinoj Vakkayil Chandrabose
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Publication number: 20100031625Abstract: Systems and a method for controlling a temperature of an exhaust gas stack are provided. The system includes a first heat exchanger positioned upstream in exhaust gas flow communication to an exhaust gas inlet to the stack, a second heat exchanger positioned upstream in exhaust gas flow communication to the first heat exchanger, and a water side conduit configured to direct a flow of relatively hot water from the second heat exchanger to the first heat exchanger such that a temperature of a flow of exhaust gas flowing through the first exchanger is maintained within a predetermined range.Type: ApplicationFiled: August 5, 2008Publication date: February 11, 2010Inventors: Prakash Narayan, Shinoj Vakkayil Chandrabose, Bhaskar Pemmi
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Publication number: 20100031660Abstract: A system and assemblies for pre-heating fuel in a combined cycle power plant are provided. A fuel supply system includes a water heater assembly configured to heat a flow of water using progressively higher grade heat from a multi-stage heat exchanger arrangement. The fuel supply system also includes a fuel heater that includes a first flow path coupled in flow communication with a fuel flow path wherein the fuel heater includes a second flow path coupled in flow communication with a flow path for the flow of water. The fuel heater is configured to transfer heat from the flow of water to the flow of fuel.Type: ApplicationFiled: August 5, 2008Publication date: February 11, 2010Inventors: Prakash Narayan, Shinoj Vakkayil Chandrabose
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Publication number: 20100031933Abstract: A system and assemblies for a fuel supply system are provided. The system includes a water heater assembly configured to heat a flow of water by mixing progressively higher grade heated flows of at least one of steam and water from a multi-stage heat exchanger arrangement, a fuel inlet flow path configured to receive a flow of fuel, and a fuel heater including a first flow path coupled in flow communication with the fuel inlet flow path and a second flow path coupled in flow communication with the water heater assembly wherein the fuel heater is configured to transfer heat from the flow of water to the flow of fuel.Type: ApplicationFiled: August 5, 2008Publication date: February 11, 2010Inventors: Prakash Narayan, Shinoj Vakkayil Chandrabose
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Publication number: 20100024443Abstract: A heat recovery system for a turbomachine system includes a heat removal system and a refrigeration system. The heat removal system is fluidly connected to at least one component of the turbomachine system. The heat removal system passes a cooling fluid through the at least one component to absorb heat. The refrigeration system is operatively connected to the heat removal system. The refrigeration system extracts the heat from the cooling fluid passing through the at least one component of the turbomachine system to produce a cooling effect.Type: ApplicationFiled: July 31, 2008Publication date: February 4, 2010Applicant: General Electric CompanyInventors: Prakash Narayan Govindan, Anil Kumar Sharma, Shinoj Vakkayil Chandrabose
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Publication number: 20100024444Abstract: A heat recovery system includes a source of waste heat, and a refrigeration system operatively connected to the source of waste heat. The refrigeration system is capable of extracting heat rejected from the source of waste heat to form a cooling medium.Type: ApplicationFiled: July 31, 2008Publication date: February 4, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Anil Kumar Sharma, Shinoj Vakkayil Chandrabose, Prakash Narayan Govindan
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Publication number: 20100024383Abstract: A system is provided and includes a first condenser configured to fluidly receive a first steam supply and tower water and to output a first water supply, a second condenser configured to fluidly receive a first portion of a second steam supply and the first water supply and to output a second water supply, and a vapor-absorption-machine (VAM) configured to fluidly receive a second portion of the second steam supply and the second water supply by which a refrigeration cycle is conducted to thereby cool at least one of the tower water and a third water supply used to cool the tower water.Type: ApplicationFiled: July 31, 2008Publication date: February 4, 2010Applicant: General Electric CompanyInventors: Shinoj Vakkayil Chandrabose, Diego Fernando Rancruel, Prakash Narayan Govindan, Anil Kumar Sharma
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Publication number: 20100024380Abstract: A system for use in a combined cycle or rankine cycle power plant using an air-cooled steam condenser is provided and includes a steam turbine from which first and second steam supplies are outputted at high and low respective pressures, an air-cooled condenser configured to fluidly receive and to air-cool at least the first steam supply via a supply of air, a cooling tower from which a first water supply is cycled, a chilling coil through which a second water supply water is cycled to thereby cool the supply of air, and a vapor-absorption-machine (VAM) configured to fluidly receive the second steam supply and the first water supply by which a refrigeration cycle is conducted to thereby cool the second water supply.Type: ApplicationFiled: July 31, 2008Publication date: February 4, 2010Applicant: GENERAL ELECTRIC COMPANYInventors: Anil Kumar Sharma, Prakash Narayan, Shinoj Vakkayil Chandrabose
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Publication number: 20090199558Abstract: An exhaust stack having a junction tube and a flue is provided. The flue has a silencer portion, a converging duct portion, a tubular portion, and a diverging diffuser portion. The silencer portion fluidly communicates with the junction tube. The silencer portion has a first hydraulic mean cross-sectional flow path, and the tubular portion has a second hydraulic mean cross-sectional flow path less than or equal to the first hydraulic mean cross-sectional flow path. The converging duct portion is coupled between the silencer portion and the tubular portion.Type: ApplicationFiled: February 11, 2008Publication date: August 13, 2009Applicant: GENERAL ELECTRIC COMPANYInventors: Saravanan Nattanmai Venkataraman, Shinoj Vakkayil Chandrabose