35results about "Nuclear engineering" patented technology

A system is configured to shield an interior chamber of a structure. The system may include a power source, an outer shield assembly operatively connected to the power source and coupled to an outer wall of the structure, and an inner shield assembly surrounding the internal chamber. The outer shield assembly generates a magnetic field through and around the structure. The inner shield assembly deflects radiation particles away from the interior chamber and re-directs portions of the magnetic field around the interior chamber.

A prosthetic heart valve either of the mechanical type or the bio prosthetic type, comprises a tubular or cylindrical frame element, a plurality of injectors, a suturing member surrounding the tubular or cylindrical frame element, tether lines to secure the device during diastolic filling but more predominantly during systolic contraction that creates a vortex effect with externally supplied pressurized fluid injected angularly within a transport structure is provided. Such a unit is utilized to accelerate the hemodynamics, reduce the energy required for said transport or both. The annular frame is designed to allow a passageway for blood flow and regulating flow during systolic contraction. Such a result is achieved through the introduction of pressurized fluid (blood) via a plurality of injectors situated evenly around the circumference of the subject tubular or cylindrical unit, and angled uniformly for an even pressure injection of fluid within the conveyance component thereof.

A process for co-producing synthesis gas and power includes producing a synthesis gas comprising at least CO and H2 by reacting a hydrocarbonaceous feedstock with oxygen, the synthesis gas being at a first temperature, separating air from a compressed air stream by means of at least one ion transport membrane unit thereby producing a permeate stream consisting predominantly of oxygen and a reject stream of oxygen-depleted air at a second temperature which is lower than the first temperature, indirectly heating the reject stream of oxygen-depleted air with the synthesis gas and at least partially expanding, the heated reject stream of oxygen-depleted air through at least one turbine to generate power, producing an at least partially expanded reject stream of oxygen-depleted air, and feeding at least a portion of the permeate stream consisting predominantly of oxygen to the synthesis gas generation stage to provide oxygen for production of synthesis gas.

A process (10) for co-producing synthesis gas and power includes in a synthesis gas generation stage (12), producing a synthesis gas (50) comprising at least CO and H2 by reacting a hydrocarbonaceous feedstock with oxygen, the synthesis gas being at a first temperature. Air is separated in an air separation stage (16) from a compressed air stream by means of at least one ion transport membrane unit (16.1 ) thereby producing a permeate stream (42) consisting predominantly of oxygen and a reject stream (44) of oxygen-depleted air at a second temperature which is lower than the first temperature. The reject stream (44) of oxygen-depleted air is heated indirectly with the synthesis gas (50) and at least partially expanded through at least one turbine (28) to generate power, producing an at least partially expanded reject stream of oxygen-depleted air (54). At least a portion of the permeate stream (42) consisting predominantly of oxygen is fed to the synthesis gas generation stage (12) to provide oxygen for production of synthesis gas.

The invention discloses a nuclear power and low temperature multi-effect sea water desalination coupling cogeneration system, belonging to the technical field of nuclear power utilization and low temperature multi-effect sea water desalination. The system comprises a small-sized nuclear reactor, a vapor generator, a turbine, a vapor converter, a vapor thermal compressor, a low temperature multi-effect evaporator and auxiliary equipment. In the system, the nuclear reactor provides energy so as to drive the vapor generator to generate high pressure vapor, the high pressure vapor enters the turbine and generates electricity through working, part of vapor is extracted out from the turbine to be offered to the vapor converter, the vapor converter heats up internal demineralized water through the heat of the vapor so as to generate secondary vapor, and the secondary vapor drives the vapor thermal compressor and the low temperature multi-effect sea water desalination system to generate fresh water. The system has the advantages that nuclear energy utilization is high in safety, the quality of generated fresh water is good, and electricity-water cogeneration is economic.

The invention relates to heat power engineering, in particular, to methods that use a working medium for producing useful work from heat of an external source. The method comprises interaction of the working medium with an energy source and interaction of the working medium with an additional low-temperature energy source in the form of the positron state of the Dirac's matter by means of bringing the working medium into quantum-mechanical resonance with said state. The quantum-mechanical resonance is initiated by changing at least one of the thermodynamic parameters of the working medium, while the value of spontaneous fluctuations of the variable parameter in the vicinity of the line of absolute instability in the state diagram of the working medium is predetermined, and the change step for the thermodynamic parameter is set to be lower than the predetermined value of said fluctuations.

The invention provides a nuclear energy and biomass energy association system method, and relates to the field of nuclear power. The nuclear energy and biomass energy association system comprises a nuclear energy subsystem and a biomass energy subsystem. The nuclear energy subsystem comprises a reactor, a high-temperature heat exchanger, a steam generator and a main pump, wherein the reactor, the high-temperature heat exchanger, the steam generator and the main pump are sequentially connected in an end-to-end mode; the main pump is connected with the reactor; the steam generator is sequentially connected with a steam turbine, a low-temperature heat exchanger, a condenser and a secondary circuit pump in an end-to-end mode. The biomass energy subsystem comprises a biomass gasification reactor, a washing tower, a reforming tower, a Fischer-Tropsch synthesis tower, a refining tower and a rectifying tower, wherein the biomass gasification reactor, the washing tower, the reforming tower, the Fischer-Tropsch synthesis tower, the refining tower and the rectifying tower are sequentially connected in an end-to-end mode; the high-temperature heat exchanger is connected with the reforming tower, and the low-temperature heat exchanger is connected with the refining tower; the steam generator generates steam to push the steam turbine to drive a generator to generate electricity. Nuclear energy subcycle and biomass energy subcycle are repeated, and a high temperature gas cooled reactor and biomass preparation liquid fuel are coupled through energy distribution. Clean electricity and liquid fuel can be generated, and the demand for integration of electricity and liquid fuel is met.

The invention relates to a method for heating desalinated raw water with waste heat from a cooling tower of a nuclear power plant and reducing temperature emission, comprising the following steps: setting a heat exchange system between the cooling tower and the raw sea water, and setting two sets of heat exchange tubes in the heat exchange system; Connect the water inlet end of one group of heat exchange tubes to the water outlet end of the cooling tower, and the water outlet end is connected to the sea through the mixing tank, open drainage channel, and tidal river section; connect the water inlet end of the other group of heat exchange tubes to the The original seawater is connected, and the water outlet is connected with the seawater desalination system. The invention utilizes the waste heat from the seawater cooling tower of the nuclear power plant to increase the temperature of the original seawater in seawater desalination, thereby reducing the investment in civil engineering and equipment, reducing the energy consumption of the system operation, further utilizing the waste heat from the cooling tower, and turning waste into treasure; The temperature of the effluent water is lowered, which is beneficial to the ecological environment of the tidal river section and the discharge sea area.

The invention discloses a multivariant combined supply integrated nuclear reactor system, comprising a nuclear reactor, a sea water desalination module, a fresh water storage tower, a group or multiple groups of energy conversion and supply terminals, and an energy output regulator, wherein the energy output regulator is used for preferentially distributing the energy provided by the nuclear reactor to a group or multiple groups of energy conversion and supply terminals; the sea water desalination module is a power balance part, and used for applying the rest energy after distribution to generate fresh water; the fresh water storage tower is used for storing fresh water generated from the sea water desalination module, wherein the output power of the nuclear reactor is maintained at a constant level; a group or multiple groups of energy conversion and supply terminals perform the power adjustment on the energy demand side. As the energy source, the nuclear reactor improves the stability and persistence of the energy supply, and has good adjusting flexibility; the energy fluctuation is transferred to the storable fresh water resource.

An apparatus is described that disintegrates single particles or pairs of oppositely charged particles, such a protons and electrons. Gamma ray energy produced by the disintegration is collected in lead shields, which are heated by absorption of the gamma rays. Heat from the lead shields is converted to steam which is in turn used to generate electricity.