公开(公告)号：US11558004B1

公开(公告)日：2023-01-17

申请号：US16798630

申请日：2020-02-24

Applicant: PRECISION COMBUSTION, INC.

Inventor： Subir Roychoudhury ,  Richard Mastanduno ,  Francesco Macri ,  Bruce Crowder

IPC: H02S10/30 ,  H02S10/10

Abstract: A thermophotovoltaic generator incorporating a two-stage combustor for providing heat to a thermophotovoltaic cell. Combustor parts include a partial oxidation reactor, which functions catalytically to convert a hydrocarbon fuel and a first supply of an oxidant into a gaseous partial oxidation product; and further include downstream thereof, a deep oxidation reactor including a premixer plenum fluidly connected to a heat spreader comprising a porous matrix, such as a ceramic foam. Functionally, the deep oxidation reactor converts the gaseous partial oxidation product and a second supply of oxidant into complete combustion products. Heat produced by the two-stage combustor generates radiative energy from a photon emitter, which is directly converted to electricity in a photovoltaic diode cell.

公开(公告)号：US11415315B1

公开(公告)日：2022-08-16

申请号：US16798565

申请日：2020-02-24

Applicant: PRECISION COMBUSTION, INC.

Inventor： Subir Roychoudhury ,  Richard Mastanduno ,  Bruce Crowder ,  Francesco Macri

IPC: F23D14/16 ,  F23C13/02 ,  F02G3/02 ,  F23D14/18 ,  F23C13/08 ,  F23D14/14 ,  F23C99/00

Abstract: A two-stage combustor having as constituent parts: a partial oxidation reactor, which catalytically converts a hydrocarbon fuel and a first supply of oxidant into a gaseous partial oxidation product; and a deep oxidation reactor having a premixer plenum fluidly connected to a porous heat spreader, which converts the gaseous partial oxidation product to deep oxidation products. In one embodiment, the premixer plenum provides an empty space wherein combustion occurs in flame mode. In a second embodiment, the premixer plenum contains a high pore density foam matrix, absent catalyst, which facilitates holding a flameless combustion downstream within the porous heat spreader. In both embodiments heat produced during combustion is transmitted from the heat spreader to an associated heat acceptor, such as a heater head of a Stirling engine.

公开(公告)号：US10978722B2

公开(公告)日：2021-04-13

申请号：US16336137

申请日：2017-10-16

Applicant: PRECISION COMBUSTION, INC.

Inventor： Christian Junaedi ,  Subir Roychoudhury ,  Kyle Hawley ,  Saurabh Vilekar

IPC: H01M8/04007 ,  C25B15/02 ,  C25B15/08 ,  C25B1/06 ,  C25B9/20 ,  H01M8/0612 ,  H01M8/12 ,  H01M8/18 ,  C25B1/00 ,  H01M8/2483 ,  C25B9/18 ,  H01M8/0258 ,  H01M8/2425 ,  C25B9/08 ,  H01M8/124

Abstract: An individual solid oxide cell (SOC) constructed of a sandwich configuration including in the following order: an oxygen electrode, a solid oxide electrolyte, a fuel electrode, a fuel manifold, and at least one layer of mesh. In one embodiment, the mesh supports a reforming catalyst resulting in a solid oxide fuel cell (SOFC) having a reformer embedded therein. The reformer-modified SOFC functions internally to steam reform or partially oxidize a gaseous hydrocarbon, e.g. methane, to a gaseous reformate of hydrogen and carbon monoxide, which is converted in the SOC to water, carbon dioxide, or a mixture thereof, and an electrical current. In another embodiment, an electrical insulator is disposed between the fuel manifold and the mesh resulting in a solid oxide electrolysis cell (SOEC), which functions to electrolyze water and/or carbon dioxide.

公开(公告)号：US20200020962A1

公开(公告)日：2020-01-16

申请号：US16336137

申请日：2017-10-16

Applicant: PRECISION COMBUSTION, INC.

Inventor： Christian Junaedi ,  Subir Roychoudhury ,  Kyle Hawley ,  Saurabh Vilekar

IPC: H01M8/04007 ,  H01M8/0612 ,  C25B1/06 ,  C25B9/08 ,  C25B9/18 ,  H01M8/2425 ,  H01M8/0258 ,  H01M8/2483 ,  H01M8/18

Abstract: An individual solid oxide cell (SOC) constructed of a sandwich configuration including in the following order: an oxygen electrode, a solid oxide electrolyte, a fuel electrode, a fuel manifold, and at least one layer of mesh. In one embodiment, the mesh supports a reforming catalyst resulting in a solid oxide fuel cell (SOFC) having a reformer embedded therein. The reformer-modified SOFC functions internally to steam reform or partially oxidize a gaseous hydrocarbon, e.g. methane, to a gaseous reformate of hydrogen and carbon monoxide, which is converted in the SOC to water, carbon dioxide, or a mixture thereof, and an electrical current. In another embodiment, an electrical insulator is disposed between the fuel manifold and the mesh resulting in a solid oxide electrolysis cell (SOEC), which functions to electrolyze water and/or carbon dioxide.

公开(公告)号：US10060344B1

公开(公告)日：2018-08-28

申请号：US14826263

申请日：2015-08-14

Applicant: Precision Combustion, Inc.

Inventor： Subir Roychoudhury ,  Richard Mastanduno ,  David Lang Spence ,  Bruce Crowder ,  Curtis Morgan

IPC: F02M37/00 ,  F02B69/02 ,  F02B51/02 ,  F02D41/00 ,  F02G5/00 ,  F02B63/04 ,  F02D9/02

CPC classification number: F02B69/02 ,  F02B51/02 ,  F02B63/04 ,  F02D9/02 ,  F02D19/0671 ,  F02D29/06 ,  F02D41/0025 ,  F02G5/00 ,  Y02T10/36

Abstract: A spark-ignited (SI) internal combustion (IC) engine designed to operate on high octane fuels, such as gasoline, is reconfigured to operate on low octane fuels including logistically preferred distillate fuels, such as diesel or JP-8. Design modifications involve coupling a fuel reformer module to the internal combustion engine. Auxiliary components include a system control module, a heat exchange module, a bypass valve to facilitate start-up, and/or a throttle body to control a reformate-oxidizer mixture fed to the engine. Small portable generators having 0.3-3.0 kWe power output are disclosed based upon the modified SI-IC engine design.