Patents by Inventor Kelvin RANDHIR

Kelvin RANDHIR 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).

  • Patent number: 12123655
    Abstract: Systems and methods for energy storage and energy recovery are provided. An electrical-to-electrical energy storage system includes a thermochemical energy storage device, a blower, a compressor, a turbine, and an electrical generator. The TCES device includes a vessel, a porous bed, and a heater. The porous bed is disposed within an interior volume of the vessel. The porous bed comprises a reactive material. The reactive material is configured to release oxygen upon being heated to a reduction temperature, and generate heat when exposed to oxygen. The heater is in thermal contact with the reactive material. The blower is configured to remove oxygen from the interior volume. The compressor is configured to flow oxygen into the interior volume. The turbine is configured to receive a heated, oxygen-depleted gas from the interior volume. The generator is configured to be powered by the turbine to generate electricity.
    Type: Grant
    Filed: August 28, 2023
    Date of Patent: October 22, 2024
    Assignee: Board of Trustees of Michigan State University
    Inventors: James F. Klausner, Joerg Petrasch, Kelvin Randhir, Nima Rahmatian
  • Publication number: 20240309283
    Abstract: A method of charging and/or discharging energy in reusable fuel workpieces or particles includes a solar furnace with counter-flowing workpieces and gas, to exchange heat therebetween, with the exiting gas and workpieces being at about ambient temperature. A further aspect employs a production plant including a reduction reactor configured to use excess electrical energy generated by renewable power generators to charge and/or discharge solid-state thermochemical fuel. Another aspect includes a fuel flow control valve using air pulses. An oxygen-deprived and reusable fuel, such as magnesium manganese oxide, or magnesium iron oxide, is also provided. In another aspect, an apparatus for producing a solid-state fuel includes a reduction reactor including a reactor chamber configured to receive concentrated solar energy, and a reactor tube having a recuperation zone, a reduction zone, and a quenching zone, wherein the reduction zone passes through the reactor chamber.
    Type: Application
    Filed: May 24, 2024
    Publication date: September 19, 2024
    Applicant: Board of Trustees of Michigan State University
    Inventors: James F. KLAUSNER, Joerg PETRASCH, Kelvin RANDHIR, Nima RAHMATIAN
  • Patent number: 12037557
    Abstract: A method of charging and/or discharging energy in reusable fuel workpieces or particles includes a solar furnace with counter-flowing workpieces and gas, to exchange heat therebetween, with the exiting gas and workpieces being at about ambient temperature. A further aspect employs a production plant including a reduction reactor configured to use excess electrical energy generated by renewable power generators to charge and/or discharge solid-state thermochemical fuel. Another aspect includes a fuel flow control valve using air pulses. An oxygen-deprived and reusable fuel, such as magnesium manganese oxide, or magnesium iron oxide, is also provided. In another aspect, an apparatus for producing a solid-state fuel includes a reduction reactor including a reactor chamber configured to receive concentrated solar energy, and a reactor tube having a recuperation zone, a reduction zone, and a quenching zone, wherein the reduction zone passes through the reactor chamber.
    Type: Grant
    Filed: February 9, 2023
    Date of Patent: July 16, 2024
    Assignee: Board of Trustees of Michigan State University
    Inventors: James F. Klausner, Joerg Petrasch, Kelvin Randhir, Nima Rahmatian
  • Publication number: 20230408209
    Abstract: Systems and methods for energy storage and energy recovery are provided. An electrical-to-electrical energy storage system includes a thermochemical energy storage device, a blower, a compressor, a turbine, and an electrical generator. The TCES device includes a vessel, a porous bed, and a heater. The porous bed is disposed within an interior volume of the vessel. The porous bed comprises a reactive material. The reactive material is configured to release oxygen upon being heated to a reduction temperature, and generate heat when exposed to oxygen. The heater is in thermal contact with the reactive material. The blower is configured to remove oxygen from the interior volume. The compressor is configured to flow oxygen into the interior volume. The turbine is configured to receive a heated, oxygen-depleted gas from the interior volume. The generator is configured to be powered by the turbine to generate electricity.
    Type: Application
    Filed: August 28, 2023
    Publication date: December 21, 2023
    Applicant: Board of Trustees of Michigan State University
    Inventors: James F. KLAUSNER, Joerg PETRASCH, Kelvin RANDHIR, Nima RAHMATIAN
  • Patent number: 11754346
    Abstract: Systems and methods for energy storage and energy recovery are provided. An electrical-to-electrical energy storage system includes a thermochemical energy storage device, a blower, a compressor, a turbine, and an electrical generator. The TCES device includes a vessel, a porous bed, and a heater. The porous bed is disposed within an interior volume of the vessel. The porous bed comprises a reactive material. The reactive material is configured to release oxygen upon being heated to a reduction temperature, and generate heat when exposed to oxygen. The heater is in thermal contact with the reactive material. The blower is configured to remove oxygen from the interior volume. The compressor is configured to flow oxygen into the interior volume. The turbine is configured to receive a heated, oxygen-depleted gas from the interior volume. The generator is configured to be powered by the turbine to generate electricity.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: September 12, 2023
    Assignee: Board of Trustees of Michigan State University
    Inventors: James F. Klausner, Joerg Petrasch, Kelvin Randhir, Nima Rahmatian
  • Publication number: 20230183590
    Abstract: A method of charging and/or discharging energy in reusable fuel workpieces or particles includes a solar furnace with counter-flowing workpieces and gas, to exchange heat therebetween, with the exiting gas and workpieces being at about ambient temperature. A further aspect employs a production plant including a reduction reactor configured to use excess electrical energy generated by renewable power generators to charge and/or discharge solid-state thermochemical fuel. Another aspect includes a fuel flow control valve using air pulses. An oxygen-deprived and reusable fuel, such as magnesium manganese oxide, or magnesium iron oxide, is also provided. In another aspect, an apparatus for producing a solid-state fuel includes a reduction reactor including a reactor chamber configured to receive concentrated solar energy, and a reactor tube having a recuperation zone, a reduction zone, and a quenching zone, wherein the reduction zone passes through the reactor chamber.
    Type: Application
    Filed: February 9, 2023
    Publication date: June 15, 2023
    Applicant: Board of Trustees of Michigan State University
    Inventors: James F. KLAUSNER, Joerg PETRASCH, Kelvin RANDHIR, Nima RAHMATIAN
  • Publication number: 20210325124
    Abstract: Systems and methods for energy storage and energy recovery are provided. An electrical-to-electrical energy storage system includes a thermochemical energy storage device, a blower, a compressor, a turbine, and an electrical generator. The TCES device includes a vessel, a porous bed, and a heater. The porous bed is disposed within an interior volume of the vessel. The porous bed comprises a reactive material. The reactive material is configured to release oxygen upon being heated to a reduction temperature, and generate heat when exposed to oxygen. The heater is in thermal contact with the reactive material. The blower is configured to remove oxygen from the interior volume. The compressor is configured to flow oxygen into the interior volume. The turbine is configured to receive a heated, oxygen-depleted gas from the interior volume. The generator is configured to be powered by the turbine to generate electricity.
    Type: Application
    Filed: June 30, 2021
    Publication date: October 21, 2021
    Applicant: Board of Trustees of Michigan State University
    Inventors: James F. KLAUSNER, Joerg PETRASCH, Kelvin RANDHIR, Nima RAHMATIAN