Patents by Inventor John Grant McDaniel
John Grant McDaniel 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: 11174770Abstract: A method of reducing the emission of nitrogen oxides (NOx) during system startup of a power generating system may include igniting a combustion turbine thereby generating exhaust, supplying the exhaust to a catalyst bed comprising a selective catalytic reduction (SCR) catalyst, injecting an initial pulse of ammonia into the exhaust during a storage period such that the NOx reacts with the ammonia and is stored in the catalyst bed as ammonium nitrate (AN) during the storage period; and injecting a scheduled amount of ammonia into the exhaust during a transition period such that the stored AN is decomposed as temperatures increase and NOx is converted via standard and fast SCR reactions during the transition period.Type: GrantFiled: March 31, 2020Date of Patent: November 16, 2021Assignee: Wellhead Power Solutions, LLCInventors: John Grant McDaniel, Christian Skov Heiberger, Daniel Scott Richardson, Paul Zach Cummins, III, Andrew Cameron Robertson
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Patent number: 10742038Abstract: Various embodiments include an energy storage system for a hybrid energy system including a an energy storage device configured coupled to an inverter and controlled by a hybrid management system. The hybrid management system may be configured to use energy from the energy storage device to supplement power output of a power generation system to comply with a contract schedule of electric power output by the hybrid energy system. The hybrid management system may be configured to satisfy stable loads of an industrial application with the power generation system and to meet load swings of the industrial application with power output from the storage device. The hybrid management system may be configured to respond to an increasing desired load transient event by disclosing stored energy to follows a ramping profile that substantially matches a gas-turbine alone ramp rate of a gas turbine generator operating in a spinning reserve mode.Type: GrantFiled: November 25, 2019Date of Patent: August 11, 2020Assignee: Wellhead Power Solutions, LLCInventors: John Grant McDaniel, Harold Edwin Dittmer
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Publication number: 20200232361Abstract: A method of reducing the emission of nitrogen oxides (NOx) during system startup of a power generating system may include igniting a combustion turbine thereby generating exhaust, supplying the exhaust to a catalyst bed comprising a selective catalytic reduction (SCR) catalyst, injecting an initial pulse of ammonia into the exhaust during a storage period such that the NOx reacts with the ammonia and is stored in the catalyst bed as ammonium nitrate (AN) during the storage period; and injecting a scheduled amount of ammonia into the exhaust during a transition period such that the stored AN is decomposed as temperatures increase and NOx is converted via standard and fast SCR reactions during the transition period.Type: ApplicationFiled: March 31, 2020Publication date: July 23, 2020Inventors: John Grant MCDANIEL, Christian Skov HEIBERGER, Daniel Scott RICHARDSON, Paul Zach CUMMINS, III, Andrew Cameron ROBERTSON
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Patent number: 10720774Abstract: Various embodiments include a hybrid energy system that includes a gas-turbine generator (GTG), an energy storage device configured to store energy that is coupled to an inverter, with the GTG and energy storage device coupled to a low side of a step-up transformer, and methods of operating such hybrid energy systems to meet power output contract requirements or provide power for industrial power applications that exhibit load swings. Some methods of operation include controlling power output from and charging of the storage device so as to satisfy a contract schedule of electric power output. Some methods of operation include discharging a portion of stored energy of the energy storage device to satisfy swing loads of the industrial application and charging the energy storage device by the GTG between swing loads.Type: GrantFiled: March 21, 2019Date of Patent: July 21, 2020Assignee: Wellhead Power Solutions, LLCInventors: John Grant McDaniel, Harold Edwin Dittmer
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Publication number: 20200173326Abstract: A method of reducing the emission of nitrogen oxides (NOx) during system startup of a power generating system may include igniting a combustion turbine thereby generating exhaust, supplying the exhaust to a catalyst bed comprising a selective catalytic reduction (SCR) catalyst, injecting an initial pulse of ammonia into the exhaust during a storage period such that the NOx reacts with the ammonia and is stored in the catalyst bed as ammonium nitride nitrate (AN) during the storage period; and injecting a scheduled amount of ammonia into the exhaust during a transition period such that the stored AN is decomposed as temperatures increase and NOx is converted via standard and fast SCR reactions during the transition period.Type: ApplicationFiled: December 3, 2018Publication date: June 4, 2020Inventors: John Grant McDaniel, Christian Skov Heiberger, Daniel Scott Richardson, Paul Zach Cummins, III, Andrew Cameron Robertson
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Patent number: 10669908Abstract: A method of reducing the emission of nitrogen oxides (NOx) during system startup of a power generating system may include igniting a combustion turbine thereby generating exhaust, supplying the exhaust to a catalyst bed comprising a selective catalytic reduction (SCR) catalyst, injecting an initial pulse of ammonia into the exhaust during a storage period such that the NOx reacts with the ammonia and is stored in the catalyst bed as ammonium nitrate (AN) during the storage period; and injecting a scheduled amount of ammonia into the exhaust during a transition period such that the stored AN is decomposed as temperatures increase and NOx is converted via standard and fast SCR reactions during the transition period.Type: GrantFiled: December 3, 2018Date of Patent: June 2, 2020Assignee: Wellhead Power Solutions, LLCInventors: John Grant McDaniel, Christian Skov Heiberger, Daniel Scott Richardson, Paul Zach Cummins, III, Andrew Cameron Robertson
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Publication number: 20200091722Abstract: Various embodiments include an energy storage system for a hybrid energy system including a an energy storage device configured coupled to an inverter and controlled by a hybrid management system. The hybrid management system may be configured to use energy from the energy storage device to supplement power output of a power generation system to comply with a contract schedule of electric power output by the hybrid energy system. The hybrid management system may be configured to satisfy stable loads of an industrial application with the power generation system and to meet load swings of the industrial application with power output from the storage device. The hybrid management system may be configured to respond to an increasing desired load transient event by disclosing stored energy to follows a ramping profile that substantially matches a gas-turbine alone ramp rate of a gas turbine generator operating in a spinning reserve mode.Type: ApplicationFiled: November 25, 2019Publication date: March 19, 2020Inventors: John Grant MCDANIEL, Harold Edwin Dittmer
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Patent number: 10424937Abstract: Various embodiments include a hybrid energy system that includes a combined cycle gas-turbine (CCGT) generator system configured to provide a up to a full-load power output and an energy storage device configured to store energy, and methods of operating such hybrid energy systems. A hybrid energy system includes a CCGT generator system configured to provide up to a full-load power output and a storage device for storing electric energy. The hybrid energy system includes a generator step-up transformer, in which the turbine generator, steam turbine generator and the storage device are electrically co-located on a low side of the step-up transformer. Methods of operation include controlling power output from the storage device and/or the CCGT system so that total power output by the CCGT system exhibits responses to up-power and down-power demand transients as if the system were a gas turbine-only power system.Type: GrantFiled: June 4, 2018Date of Patent: September 24, 2019Assignee: Wellhead Power Solutions, LLCInventors: John Grant McDaniel, Harold Edwin Dittmer
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Patent number: 10411471Abstract: Various embodiments include a hybrid energy system that includes a combined cycle gas-turbine (CCGT) generator system configured to provide a up to a full-load power output and an energy storage device configured to store energy, and methods of operating such hybrid energy systems. A hybrid energy system includes a combined cycle gas turbine generator system configured to provide up to a full-load power output and a storage device for storing electric energy. The hybrid energy system includes a generator step-up transformer, in which the turbine generator, steam turbine generator and the storage device are electrically co-located on a low side of the step-up transformer. Methods of operation include controlling power output from the storage device and/or the CCGT to function as a spinning reserve during scheduled and unscheduled grid power demands to achieve economic and environmental performance advantages, and maintaining a charge state in the storage device.Type: GrantFiled: May 31, 2018Date of Patent: September 10, 2019Assignee: Wellhead Power Solutions, LLCInventors: John Grant McDaniel, Harold Edwin Dittmer
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Publication number: 20190222027Abstract: Various embodiments include a hybrid energy system that includes a gas-turbine generator (GTG), an energy storage device configured to store energy that is coupled to an inverter, with the GTG and energy storage device coupled to a low side of a step-up transformer, and methods of operating such hybrid energy systems to meet power output contract requirements or provide power for industrial power applications that exhibit load swings. Some methods of operation include controlling power output from and charging of the storage device so as to satisfy a contract schedule of electric power output. Some methods of operation include discharging a portion of stored energy of the energy storage device to satisfy swing loads of the industrial application and charging the energy storage device by the GTG between swing loads.Type: ApplicationFiled: March 21, 2019Publication date: July 18, 2019Inventors: John Grant MCDANIEL, Harold Edwin DITTMER
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Publication number: 20180287395Abstract: Various embodiments include a hybrid energy system that includes a combined cycle gas-turbine (CCGT) generator system configured to provide a up to a full-load power output and an energy storage device configured to store energy, and methods of operating such hybrid energy systems. A hybrid energy system includes a CCGT generator system configured to provide up to a full-load power output and a storage device for storing electric energy. The hybrid energy system includes a generator step-up transformer, in which the turbine generator, steam turbine generator and the storage device are electrically co-located on a low side of the step-up transformer. Methods of operation include controlling power output from the storage device and/or the CCGT system so that total power output by the CCGT system exhibits responses to up-power and down-power demand transients as if the system were a gas turbine-only power system.Type: ApplicationFiled: June 4, 2018Publication date: October 4, 2018Inventors: John Grant McDaniel, Harold Edwin DITTMER
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Publication number: 20180278059Abstract: Various embodiments include a hybrid energy system that includes a combined cycle gas-turbine (CCGT) generator system configured to provide a up to a full-load power output and an energy storage device configured to store energy, and methods of operating such hybrid energy systems. A hybrid energy system includes a combined cycle gas turbine generator system configured to provide up to a full-load power output and a storage device for storing electric energy. The hybrid energy system includes a generator step-up transformer, in which the turbine generator, steam turbine generator and the storage device are electrically co-located on a low side of the step-up transformer. Methods of operation include controlling power output from the storage device and/or the CCGT to function as a spinning reserve during scheduled and unscheduled grid power demands to achieve economic and environmental performance advantages, and maintaining a charge state in the storage device.Type: ApplicationFiled: May 31, 2018Publication date: September 27, 2018Inventors: John Grant MCDANIEL, Harold Edwin DITTMER
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Patent number: 10069301Abstract: Various embodiments include a hybrid energy system that includes a gas-turbine generator configured to provide a up to a full-load power output and an energy storage device configured to store energy, and methods of operating such hybrid energy systems. A hybrid energy system includes a gas turbine generator or combined cycle gas turbine generator system configured to provide up to a full-load power output and a storage device for storing electric energy. The hybrid energy system includes a generator step-up transformer, in which the turbine generator and the storage device are electrically co-located on a low side of the step-up transformer. Methods of operation include controlling power output from the storage device and/or the gas-turbine generator to function as a spinning reserve during scheduled and unscheduled grid power demands to achieve economic and environmental performance advantages, and maintaining a charge state in the storage device.Type: GrantFiled: December 18, 2017Date of Patent: September 4, 2018Assignee: WELLHEAD POWER SOLUTIONS, LLCInventors: John Grant McDaniel, Harold Edwin Dittmer
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Patent number: 9997924Abstract: Various embodiments include systems and methods of operating a hybrid energy system that includes a gas-turbine generator configured to provide a full-load power output and a storage device configured to store energy. The hybrid energy system includes a generator step-up transformer, wherein the gas-turbine generator and the storage device are electrically co-located on a low side of the generator step-up transformer. Methods of operation include controlling power output from the storage device and/or the gas-turbine generator during scheduled and unscheduled grid power demands to achieve economic and environmental performance advantages.Type: GrantFiled: July 30, 2017Date of Patent: June 12, 2018Assignee: WELLHEAD ELECTRIC COMPANY, INC.Inventors: John Grant McDaniel, Harold Edwin Dittmer
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Publication number: 20180109108Abstract: Various embodiments include a hybrid energy system that includes a gas-turbine generator configured to provide a up to a full-load power output and an energy storage device configured to store energy, and methods of operating such hybrid energy systems. A hybrid energy system includes a gas turbine generator or combined cycle gas turbine generator system configured to provide up to a full-load power output and a storage device for storing electric energy. The hybrid energy system includes a generator step-up transformer, in which the turbine generator and the storage device are electrically co-located on a low side of the step-up transformer. Methods of operation include controlling power output from the storage device and/or the gas-turbine generator to function as a spinning reserve during scheduled and unscheduled grid power demands to achieve economic and environmental performance advantages, and maintaining a charge state in the storage device.Type: ApplicationFiled: December 18, 2017Publication date: April 19, 2018Inventors: John Grant MCDANIEL, Harold Edwin DITTMER
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Publication number: 20170331298Abstract: Various embodiments include systems and methods of operating a hybrid energy system that includes a gas-turbine generator configured to provide a full-load power output and a storage device configured to store energy. The hybrid energy system includes a generator step-up transformer, wherein the gas-turbine generator and the storage device are electrically co-located on a low side of the generator step-up transformer. Methods of operation include controlling power output from the storage device and/or the gas-turbine generator during scheduled and unscheduled grid power demands to achieve economic and environmental performance advantages.Type: ApplicationFiled: July 30, 2017Publication date: November 16, 2017Inventors: John Grant MCDANIEL, Harold Edwin DITTMER
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Patent number: 9722426Abstract: A hybrid energy system includes a (GTG) configured to provide a full-load power output and a storage device configured to store energy. The hybrid energy system includes a generator step-up transformer, wherein the GTG and the storage device are electrically co-located on a low side of the generator step-up transformer.Type: GrantFiled: September 26, 2014Date of Patent: August 1, 2017Assignee: Wellhead Electric Company, Inc.Inventors: John Grant McDaniel, Harold Edwin Dittmer
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Patent number: 9500109Abstract: A system and method include a nozzle configured to inject water into a gas turbine at a specified water flow rate. An effluent stream of the gas turbine includes a gas turbine effluent stream including a first emission level. A secondary emissions control apparatus is in fluid communication with the gas turbine effluent stream. An output stream of the secondary emissions control apparatus can include a second emissions level below a specified emissions output threshold. The method and system can reduce the amount of water over time that is introduced into the gas turbine based on the threshold emissions reduction capability of the secondary emissions control apparatus.Type: GrantFiled: May 20, 2015Date of Patent: November 22, 2016Assignee: Wellhead Electric Company, Inc.Inventors: Christian Skov Heiberger, John Grant McDaniel
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Publication number: 20150337740Abstract: A method for controlling a ramp rate of a gas turbine is disclosed. The method can include receiving, at a controller, a new load set-point command. An energy product of the new load set-point command is determined. Further, a ramp rate time of the gas turbine associated with the determined energy product can be determined. The method includes determining a ramp rate and ramping the gas turbine at the determined ramp rate to the new load set-point. In an example, the method includes determining a slowest ramp rate capable of achieving the new load set-point according to a market factor.Type: ApplicationFiled: May 20, 2015Publication date: November 26, 2015Inventors: Christian Skov Heiberger, John Grant McDaniel
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Publication number: 20150337704Abstract: A system and method include a nozzle configured to inject water into a gas turbine at a specified water flow rate. An effluent stream of the gas turbine includes a gas turbine effluent stream including a first emission level. A secondary emissions control apparatus is in fluid communication with the gas turbine effluent stream. An output stream of the secondary emissions control apparatus can include a second emissions level below a specified emissions output threshold. The method and system can reduce the amount of water over time that is introduced into the gas turbine based on the threshold emissions reduction capability of the secondary emissions control apparatus.Type: ApplicationFiled: May 20, 2015Publication date: November 26, 2015Inventors: Christian Skov Heiberger, John Grant McDaniel