13results about "Compression machines using turbines" patented technology

The invention relates to a heat pump circuit (1) for providing usable heat at a temperature above 130°C. The invention further relates to a method for operating such a heat pump circuit (1).

To provide a method and an apparatus for cooling a surface on a flight vehicle and / or generating power.SOLUTION: Supercritical working fluid is circulated through a fluid loop that includes the steps of: compressing the supercritical working fluid by a compressor, heating the supercritical working fluid by a heat absorbing portion that is thermally coupled to a surface; expanding the supercritical working fluid in a thermal engine to generate work output; cooling the supercritical working fluid; and recirculating the supercritical working fluid to the compressor. The work output of the thermal engine is operably coupled to the compressor, and may optionally be coupled to a generator in order to generate power. The supercritical working fluid absorbs heat from the surface, eliminates hot spots and permits use of lighter and / or less expensive material.SELECTED DRAWING: None

A method is provided. The method comprises: identifying, by a processing device, first temperature data indicative of a temperature difference between a bulk fluid at a first inlet of a heat exchanger and the bulk fluid at a first outlet of the heat exchanger, fluidly coupled to the first inlet by one or more fluid channels of the heat exchanger, wherein the first outlet of the heat exchanger is fluidly coupled to a high-pressure inlet of a pressure exchanger (PX); determining, based on the first temperature data, a target adjustment of a first valve fluidly coupled to the first outlet of the heat exchanger and to a secondary fluid inlet of the heat exchanger; and causing, based on the target adjustment, actuation of the first valve.

A refrigeration device according to an embodiment includes a compressor 11, a compressor downstream-side heat exchanger 12, an expander 21, and an expander downstream-side heat exchanger 22. The compressor 11 and the expander 21 are coupled to each other by a common drive shaft 18A. The compressor downstream-side heat exchanger 12 cools the natural refrigerant flowing out of the compressor 11, and the expander downstream-side heat exchanger 22 exchanges heat between the natural refrigerant flowing out of the expander 21 and a temperature control target. The compressor downstream-side heat exchanger 12 and the expander downstream-side heat exchanger 22 are then arranged to be aligned in a direction parallel to an axial direction Ax of the drive shaft 18A.

An energy utilization system includes a circulation circuit. The circulation circuit includes a pump, a heating section, an electrolytic reduction apparatus, and a thermal energy recovery section. The pump receives a heating medium and outputs the heating medium. The heating section heats the heating medium by using renewable energy or energy obtained from waste heat. The electrolytic reduction apparatus heats an electrolytic solution with heat from the heating medium. The circulation circuit circulates the heating medium. A method for producing a carbon-containing material includes heating a heating medium circulating in a circulation circuit by using renewable energy or energy obtained from waste heat, and performing electrolytic reduction by heating an electrolytic solution with heat from the heating medium that has been heated.

A fluid handling system includes a pressure exchanger (PX) configured to receive a first fluid at a first pressure and a second fluid at a second pressure and exchange pressure between the first fluid and the second fluid. The system further includes a condenser configured to provide corresponding thermal energy from the first fluid to a corresponding environment. The system further includes a receiver to receive the first fluid output by the PX. The receiver forms a chamber to separate the first fluid into a first gas and a first liquid. The system further includes a first booster to increase pressure of a portion of the first gas to form the second fluid at the second pressure and provide the second fluid at the second pressure to the PX.

A thermal circulation system includes a working fluid that circulates in a loop comprising a compressor (10), a condenser (11a, 11b), an expander unit (130), and an evaporator (14). The expander unit (130) is configured to generate rotary mechanical motion. The expander unit (130) is connected between the outlet of the condenser (11a, 11b) and the inlet of the evaporator (14). The pressure drop of the working fluid through the condenser is less than about 5 bar.

A refrigeration device according to one embodiment comprises: a compressor 11; a compressor downstream-side heat exchanger 12; an expander 21; and an expander downstream-side heat exchanger 22. The compressor 11 and the expander 21 are connected by a common drive shaft 18A. The compressor downstream-side heat exchanger 12 cools a natural refrigerant flowing out from the compressor 11, and the expander downstream-side heat exchanger 22 causes heat exchange of the natural refrigerant flowing out from the expander 21 with an object to be temperature-controlled. The compressor downstream-side heat exchanger 12 and the expander downstream-side heat exchanger 22 are arranged so as to be aligned in a direction parallel to an axial direction Ax of the drive shaft 18A.

The invention relates to a refrigeration method and equipment for cooling the inside of a container, or a coolant circulating in a refrigeration circuit of a vehicle and / or of a supercharger, which uses an air current as a working fluid and comprises the steps of: compressing; cooling in coolers coupled to an ejection cycle; expanding, to reduce the temperature of the air current and obtain mechanical energy from same; refrigerating, to allow an exchange of thermal energy between the air current resulting from the expansion step and the coolant of the refrigeration circuit or the inside of the container; and regenerating, to allow an exchange of thermal energy between the air current resulting from the compression step, reducing the temperature thereof, and the air current resulting from the regenerating step, increasing the temperature thereof.

A system includes a pressure exchanger (PX) configured to receive a first fluid via a first PX inlet and receive a second fluid via a second PX inlet. The PX is configured to exchange pressure between the first fluid and the second fluid. The system further includes a compressor. The compressor includes a first portion configured to house at least a motor. The compressor further includes a second portion configured to be fluidly coupled to the PX and to be fluidly isolated from the first portion. The second portion forms a first compressor inlet and first compressor outlet. The compressor is configured to receive the first fluid at a first pressure into the second portion via the first compressor inlet; increase pressure of the first fluid from the first pressure to a second pressure; and provide the first fluid at the second pressure via the first compressor outlet.

A refrigeration cycle is connected to a supercritical carbon dioxide (sCO2) power cycle by incorporating a CO2 condenser which is also the refrigeration cycle evaporator. The heat rejected by the carbon dioxide is absorbed by the refrigerant in the CO2 condenser. Work is done on the refrigerant to raise its temperature above the local ambient temperature. The heat absorbed from the power cycle and the work required to raise the refrigerant temperature is rejected to the ambient environment, which may be either air, earth, or water. This results in improved efficiencies in carbon dioxide power cycles without regard to the ambient temperature by forcing a transcritical phase change even when ambient temperatures are above the carbon dioxide critical point. A two-phase heat transfer on both sides of the CO2 condenser further improves efficiency of the sCO2 power cycle.

The invention relates to a refrigeration method and equipment for cooling the inside of a container, or a coolant circulating in a refrigeration circuit of a vehicle and / or of a supercharger, which uses an air current as a working fluid and comprises the steps of: compressing; cooling in coolers coupled to an ejection cycle; expanding, to reduce the temperature of the air current and obtain mechanical energy from same; refrigerating, to allow an exchange of thermal energy between the air current resulting from the expansion step and the coolant of the refrigeration circuit or the inside of the container; and regenerating, to allow an exchange of thermal energy between the air current resulting from the compression step, reducing the temperature thereof, and the air current resulting from the regenerating step, increasing the temperature thereof.