Abstract: Described herein are techniques that may be performed in an Integrated Energy System (IES). The IES may include a power plant, an emission source, and a chemical processing plant. The IES may include one or more sub-plants configured to receive Carbon Dioxide from an emission source, convert a first portion of the Carbon Dioxide into Carbon Monoxide, receive Sodium Hydroxide, combine the Carbon Monoxide and the Sodium Hydroxide to produce Hydrogen gas, and combine, using a reaction chamber, a second portion of the Carbon Dioxide, the Carbon Monoxide, and the Hydrogen to produce Methanol.

Abstract: An integrated system for indirect cycle steam heating comprising a nuclear power module configured to output first steam; a turbine generator configured to receive the first steam and output second steam; a heat exchanger configured to receive water, receive at least one of first steam, second steam, and transfer heat from the at least one of first steam and second steam into the water to create third steam a peaking heater configured to receive the third steam, transfer augmenting heat into the third steam, and heat, based at least in part on the transfer, the third steam to have a temperature above a threshold temperature an auxiliary heater configured to receive the third steam; and a chemical processing plant configured to receive the third steam and transfer heat from the third steam into a chemical.

Abstract: Described herein are techniques that may be performed in an Integrated Energy System (IES) to produce Nitric Acid (HNO3) while minimizing a carbon footprint. Such techniques, as performed by a resource production plant, may comprise receiving electricity and steam from a power plant to produce Hydrogen (H2) gas from the steam at a Hydrogen (H2) production sub-plant, receiving electricity from the power plant and air from the environment to produce Nitrogen (N2) gas at a Nitrogen (N2) production sub-plant, producing Ammonia (NH3) from the Hydrogen (H2) gas and the Nitrogen (N2) gas at a nitrogen production sub-plant, and producing Nitric Acid (HNO3) from the Ammonia (NH3) at a Nitric Acid (HNO3) production sub-plant.

Abstract: A power module assembly may include a reactor vessel containing a primary coolant and one or more inlets configured to draw a secondary coolant from the containment cooling pool in response to a loss of power and/or a loss of coolant. One or more outlets may be submerged in the containment cooling pool and may be configured to vent the secondary coolant into the containment cooling pool. A heat exchanger may be configured to remove heat from the primary coolant, wherein the heat may be removed by circulating the secondary coolant from the containment cooling pool through the heat exchanger via natural circulation.

Abstract: Integrated Energy Systems (IESs), such as for use in capturing atmospheric carbon dioxide, and associated devices and methods are described herein. A representative IES can include a power plant system having multiple modular nuclear reactors, a desalination plant, a brine processing plant, and a direct air capture plant. The nuclear reactors can generate electricity and/or steam for use by the desalination plant and the direct air capture plant. The desalination plant can use the electricity and/or steam to produce brine from seawater or brackish water. The brine processing plant can receive the brine from the desalination plant and process the brine to produce sodium hydroxide. The direct air capture plant can use the sodium hydroxide as a liquid sorbent in a direct air capture process to capture carbon dioxide from atmospheric air.

Abstract: Integrated energy systems, such as for use in producing sodium formate and/or processing sodium formate to generate hydrogen as an energy carrier and that produce few or no carbon emissions, and associated devices and methods are described herein. A representative integrated energy system can include a power plant system having multiple modular nuclear reactors. The nuclear reactors can generate electricity and steam for direct use in a sodium formate process or for use in an electrical power conversion system to generate electricity for use in the sodium formate process or for supply to a power grid. Individual ones of the nuclear reactors can be configured to flexibly generate differing outputs of steam or electricity based on a demand state of the power grid—for example, supplying excess electricity and/or steam to the sodium formate process during off-peak hours.

Abstract: Integrated energy systems, such as for use in green industrial processes that produce few or no carbon emissions, and associated devices and methods are described herein. A representative integrated energy system can include a power plant system having multiple modular nuclear reactors. The nuclear reactors can generate steam for direct industrial use or for use in an electrical power conversion system to generate electricity. Individual ones of the nuclear reactors can be configured to flexibly generate differing outputs of steam or electricity based on the vary requirements of the industrial processes of the integrated energy system. The industrial processes can include, for example, the production of hydrogen, oxygen, nitrogen, ammonia, urea, sulfur, sulfuric acid, and/or other useful chemicals.

Abstract: A power module assembly may include a reactor vessel containing a primary coolant and one or more inlets configured to draw a secondary coolant from the containment cooling pool in response to a loss of power and/or a loss of coolant. One or more outlets may be submerged in the containment cooling pool and may be configured to vent the secondary coolant into the containment cooling pool. A heat exchanger may be configured to remove heat from the primary coolant, wherein the heat may be removed by circulating the secondary coolant from the containment cooling pool through the heat exchanger via natural circulation.

Abstract: Integrated energy systems, such as for use in enhanced oil recovery operations, and associated devices and methods are described herein. A representative integrated energy system can include a power plant system having multiple modular nuclear reactors. The nuclear reactors can generate steam for direct industrial use or for use in an electrical power conversion system to generate electricity. Individual ones of the nuclear reactors can be configured to generate steam or electricity based on the requirements of different stages of the oil recovery operation. For example, during a first stage, a subset of the nuclear reactors can be configured to generate steam for the oil recovery operation for injection into an oil reservoir. During a second stage, some or all of the nuclear reactors in the subset can be reconfigured to generate electricity that can be routed to an industrial process different than the oil recovery operation.

Abstract: A system includes a containment vessel configured to prohibit a release of a coolant, and a reactor vessel mounted inside the containment vessel. An outer surface of the reactor vessel is exposed to below atmospheric pressure, wherein substantially all gases are evacuated from the containment vessel.

Abstract: A system includes a containment vessel configured to prohibit a release of a coolant, and a reactor vessel mounted inside the containment vessel. An outer surface of the reactor vessel is exposed to below atmospheric pressure, wherein substantially all gases are evacuated from within the containment vessel.

Abstract: A method of loading fuel in multiple reactor cores associated with a plurality of fuel cycles. The method includes, in a first fuel cycle, loading a first reactor core with a first fuel assembly selected from a first batch of fuel, loading the first reactor core with a first partially spent fuel assembly from a second batch of fuel, loading a second reactor core with a second fuel assembly from the first batch of fuel, and loading the second reactor core with a second partially spent fuel assembly from the second batch of fuel. In a second fuel cycle, which is performed after a completion of the first fuel cycle, the method includes loading the second reactor core with a fresh fuel assembly, and loading the second reactor core with the first fuel assembly from the first batch of fuel.

Abstract: A multi-modular power plant includes a plurality of on-site nuclear power modules that generate a power plant output, and a number of power plant systems which operate using electricity associated with a house load of the power plant. A switchyard associated with the power plant may electrically connect the power plant to a distributed electrical grid. The distributed electrical grid may be configured to service a plurality of geographically distributed consumers. Additionally, the switchyard may electrically connect the power plant to a dedicated electrical grid. The dedicated electrical grid may provide electricity generated from the power plant output to a dedicated service load, and the power plant output may be equal to or greater than a combined load of the dedicated service load and the house load. At least a portion of the power plant output may be distributed to both the power plant systems and the dedicated electrical grid.

Abstract: A system for storing nuclear fuel assemblies includes a plurality of cells housed within a support structure. A first cell may house a first fuel assembly and a second cell may house a second fuel assembly. A plurality of compartments separate the plurality of cells and provide passageways for coolant entering a bottom end of the support structure to remove heat from the nuclear fuel assemblies. A first perforation transfers coolant between the first cell and one or more of the compartments, and a second perforation transfers coolant between the second cell and the one or more compartments. At least a portion of the coolant entering the bottom end of the support structure is transferred between the plurality of cells and the plurality of compartments. Two or more fuel storage racks may be stacked together in alternating fuel patterns to facilitate cooling the fuel assemblies with liquid or air.

Abstract: A spent nuclear fuel rod canister includes a submersible pressure vessel including a casing that defines an interior cavity, the casing including a corrosion resistant and heat conductive material and a rack enclosed within the interior cavity and configured to support one or more spent nuclear fuel rods. The spent nuclear fuel rod canister includes a heat exchanger attached to the casing of the pressure vessel.

Abstract: A method of creating a computer-generated model of a portion of a nuclear reactor that is positioned between an emitter and a detector of an imaging device. The method includes transmitting energy by the detector emitter toward the containment vessel; receiving at the detector at least a portion of the energy transmitted by the emitter, the at least a portion of the energy being attenuated by a tracing agent in a tube sheet or scattered by the tubesheet of the nuclear reactor within the containment vessel; and creating a computer-generated model of the tubesheet based on the at least a portion of the energy received at the detector, the computer-generated model comprising one or more 3D images of the tubesheet.

Abstract: A power module assembly includes a reactor core immersed in a coolant and a reactor vessel housing the coolant and the reactor core. An internal dry containment vessel submerged in liquid substantially surrounds the reactor vessel in a gaseous environment. During an over-pressurization event the reactor vessel is configured to release the coolant into the containment vessel and remove a decay heat of the reactor core through condensation of the coolant on an inner surface of the containment vessel.

Abstract: A power module assembly may include a reactor vessel containing a primary coolant and one or more inlets configured to draw a secondary coolant from the containment cooling pool in response to a loss of power and/or a loss of coolant. One or more outlets may be submerged in the containment cooling pool and may be configured to vent the secondary coolant into the containment cooling pool. A heat exchanger may be configured to remove heat from the primary coolant, wherein the heat may be removed by circulating the secondary coolant from the containment cooling pool through the heat exchanger via natural circulation.

Abstract: A system includes a containment vessel configured to prohibit a release of a coolant, and a reactor vessel mounted inside the containment vessel. An outer surface of the reactor vessel is exposed to below atmospheric pressure, wherein substantially all gases are evacuated from within the containment vessel.

Abstract: A power module assembly may include a reactor vessel containing a primary coolant and one or more inlets configured to draw a secondary coolant from the containment cooling pool in response to a loss of power and/or a loss of coolant. One or more outlets may be submerged in the containment cooling pool and may be configured to vent the secondary coolant into the containment cooling pool. A heat exchanger may be configured to remove heat from the primary coolant, wherein the heat may be removed by circulating the secondary coolant from the containment cooling pool through the heat exchanger via natural circulation.