74 results about "Recuperator" patented technology

A closed working fluid type heat engine (100) for power generation in the environment of a nuclear fusion power system (200). The heat engine includes a primary heat exchanger (102) connected to a primary heat source (106) and a secondary heat exchanger (108) connected to a secondary heat source (110). The secondary heat source is thermally independent of the primary heat source, and the temperature of the primary heat source is higher than that of the secondary heat source. The heat engine also includes a main turbine (104) and an auxiliary turbine (116). The turbines are arranged in fluid parallel, and a parallel shunt point is arranged between the primary heat exchanger and the secondary heat exchanger. The main turbine receives the working fluid heated by the secondary heat exchanger and the main heat exchanger, and the auxiliary turbine receives the working fluid heated by the secondary heat exchanger. The heat engine also includes a first regenerator (124) configured to thermally connect working fluid flowing out of the main turbine with working fluid flowing into the main heat exchanger. Suitable nuclear fusion power systems and methods of operation thereof are also described.

A system may include a gas turbine having a flow diffuser, a combustor, a turbine coupled to a shaft, and a retrofitted compressor section. The retrofitted compressor section retains a plurality of retrofitted rotating blades and is devoid of stator airfoils between the plurality of retrofitted rotating blades. Each of the plurality of retrofitted rotating blades being devoid of an airfoil. The system may include a compressed air storage tank, a recuperator, a low pressure (LP) intercooled compressor, a high pressure (HP) intercooled compressor, and a plurality of Turbophase modules. The tank is coupled to said LP compressor, said HP compressor, said gas turbine engine, and said recuperator. The HP compressor compresses air from said LP compressor to a highly compressed air for storage in said tank. The LP compressor is configured to selectively bypass said HP intercooled compressor to deliver compressed air to said gas turbine engine.

The utility model relates to a heat recovery air handling unit (1), which ensures a high level of heat exchange efficiency and high air exchange performance, and which comprises an external module (4) with an air intake grille (23) and an exhaust grille (24), an internal module (2) with a plate recuperator (5), a supply air grille (21) and an exhaust air grille (22), a filter (16), an exhaust air duct (6), an exhaust air outlet duct (7), an air intake duct (8), supply air duct (9), and a partition wall (10) between the exhaust air outlet duct (7) and air intake ducts (8) with fans (3, 11) that generate counter-flow air currents, specifically a fan (3) located in the air intake duct (8) and a fan (11) located in the exhaust air duct (7). The device includes a condensate removal system, and the internal module (2) consists of a wall-mounted section (2A) and a section (2B) installed within the wall, wherein the section (2B) installed within the wall contains a module (20) with fans (3, 11) installed therein.

The invention discloses a modular multifunctional reheating unit box, and relates to the technical field of reheating unit boxes, the modular multifunctional reheating unit box comprises a door body hinged to the surface of a box body, a frame is placed at the bottom end of the box body, vertical rods are arranged on the periphery of the top end of the frame, positioning holes are formed in one side of each vertical rod at equal intervals, and a placing plate is arranged on the surface of each vertical rod; two springs are arranged in the containing plate, one side of each spring is connected with a movable plate, one side of each movable plate is connected with an extrusion ball, and the other side of each movable plate is connected with a positioning rod making contact with the interior of the corresponding positioning hole. According to the invention, the placing plate can be matched with the positioning holes in the vertical rods through the positioning rods, so that the vertical position can be flexibly adjusted. Through the design, the reheating unit box can quickly adjust the position of the placing plate according to the sizes and shapes of different articles, so that diversified heating requirements are met; and through the cooperation of the screw rod and the extrusion block, the position of the placing plate can be conveniently locked or unlocked, so that the adjusting process is simpler, more convenient and quicker.

This utility model relates to the field of regenerator technology and provides a material regenerator, comprising: support feet, two sets of support feet, and a first shell fixedly connected to the top of the two sets of support feet; a connecting column fixedly connected to the top of the first shell; a second shell welded to the top of the connecting column; a discharge port connected to the left side of the first shell via a flange; a feed port connected to the side of the second shell near the discharge port via a flange; sealing plates sealed to the inside of both ends of the first and second shells; and multiple heat exchange tubes arranged between the sealing plates. The material regenerator of this utility model, by setting a fixing component, allows for convenient disassembly and assembly of the U-shaped connecting pipe, facilitating internal flushing and maintenance of the heat exchange tubes. By using the first and second shells in series, the heat exchange rate can be greatly improved, meeting production needs and saving costs.

The invention relates to a turbogenerator device (8), comprising a first stage (ET1) with a first compressor (CP1) and a first turbine (TB1) connected together via a first shaft (A1), a first combustion chamber (CC1) delivering a first stream of gas (F1) to the first turbine, and a recuperator exchanger (1) comprising a first path with a first inlet (E1) receiving compressed air from the compressor and a first outlet (S1) directed towards the combustion chamber (CC1), the recuperator exchanger receiving burnt gases on a second inlet (E2) and releasing the cooled burnt gases via a second outlet (S2), the device providing fuel injection via an auxiliary inlet (EF) in the recuperator exchanger where the fuel mixes with the compressed air, the fuel being vaporized as it travels to the first outlet, so that the fuel arrives in a vaporized state in the combustion chamber.

An energy conversion plant having one or more driving units, for driving respective loads, such as an electric motor or a centrifugal compressor. The energy conversion plant comprises at least one heat exchange recuperator, for heating pre-compressed carbon dioxide to be fed into the driving units by the heat produced by the driving units themselves, and compression and pumping unit, for compressing the carbon dioxide. The carbon dioxide is also supplied by a fluid source auxiliary plants group.

An integrated thermal processing and energy conversion system includes a supercritical water oxidation (SCWO) reactor configured to oxidize liquid chemical waste at supercritical conditions, producing heat, CO2, and a mineral-rich slurry. A thermal recovery and storage unit captures heat from the SCWO reactor and uses it to heat pressurized supercritical CO2 (SCCO2), which is expanded through an SCCO2 turbine to generate mechanical and electrical power. The system includes a dry gas fractionator to separate SCCO2 gas from the slurry, a mineral carbonate generator to convert slurry and CO2 into dry mineral carbonates, and a recuperator for recovering additional heat. Cooled CO2 is compressed and stored or directed to a gas mixer for reuse in the SCWO process. Control systems coordinate temperature, pressure, and flow throughout the system. The configuration enables continuous waste treatment, heat recovery, and power generation from interconnected fluid and thermal streams.

A thermal management system and a vehicle are provided. The thermal management system (1) comprises an air conditioning module (100) and a battery temperature control module (200). The air conditioning module (100) includes a compressor (110), an in-vehicle heat exchanger (150), an external heat exchanger (160), and a recuperator (400) connected to form a refrigerant circuit. The recuperator (400) is configured to allow a refrigerant within the recuperator (400), flowing to an inlet of the compressor (110), to undergo heat exchange in order to recover heat. The battery temperature control module (200) is connected in the refrigerant circuit of the air conditioning module (100) to control the temperature of a battery through the air conditioning module (100).

A system includes a direct air capture (DAC) system, including one or more gas capture systems configured to capture an undesirable gas from air. The system further includes a thermodynamic cycle including a fluid circuit having at least one compressor, at least one recuperator, at least one turbine, at least one first heat exchanger, and at least one second heat exchanger. The fluid circuit is configured to circulate a working fluid, the at least one first heat exchanger is configured to transfer heat from a heat source to the working fluid, and the at least one second heat exchanger is configured to transfer heat from the working fluid to the one or more gas capture systems.

A recuperative radiant tube system includes a radiant tube combustion system having a burner leg and an exhaust leg and is configured to produce a stream of products of combustion (POC) through a combustion process. A recuperator assembly is coupled to the exhaust leg and includes a first heat exchanger to facilitate heat exchange between a combustion air stream and the stream of POC in a recirculation loop. A booster assembly is coupled to the recuperator assembly and includes a second heat exchanger to facilitate additional heat exchange between the stream of POC and the combustion air stream outside the recirculation loop.

Burner (12) for heating a boiler room (55) with reduction of NOx emissions, comprising: a mixing and combustion chamber (54); a mixing and ignition device (51) arranged in the mixing and combustion chamber (54); a fuel supply (50) which is connected to the mixing and ignition device (51) and is designed to supply fuel to the mixing and ignition device (51); an air supply with an air supply pipe (30) delimiting the mixing and combustion chamber (54), which is designed to supply a first partial air flow (L1) to the mixing and combustion chamber (54); a recuperator (40) at least partially surrounding the air supply pipe (30), through which a second partial air flow (L2) is supplied to the mixing and combustion chamber (54) via the air supply; a combustion chamber opening (53) formed by the recuperator (40), which opens the mixing and combustion chamber (54) to a heating room (55) to be heated; Control means (60) designed to control a fuel flow (B) via the fuel supply (50) and to control at least the first partial air flow (L1) via the air supply, wherein the burner (12) and the control means (60) are designed to operate the burner (12) with a stable flame (56) extending from the mixing and ignition device (51) through the combustion chamber opening (53) into the heating chamber (55); wherein the air supply pipe (30) and the recuperator (40) each form an associated through-hole (33, 43) at their free end pointing in an axial direction (Z), which are arranged coaxially, wherein the through-hole (43) of the recuperator (40) forms the combustion chamber opening (53) and at least one air channel (39) through which the second partial air flow (L2) flows is formed between the recuperator (40) and the air supply pipe (30), which opens into the mixing and combustion chamber (54) between the through-hole (43) of the recuperator (40) and the through-hole (33) of the air supply pipe (30); characterized by the fact that the air supply pipe (30) forms a pipe extension (31) with an outer surface (32) tapering in the axial direction (z) towards the associated through hole (33) and the recuperator (40) forms a recuperator extension (41) with an inner surface (42) tapering in the axial direction (z) towards the associated through hole (43), wherein the pipe extension (31) and the recuperator extension (41) are arranged interlocking.

The application belongs to the technical field of heat source heat recovery, and particularly relates to a combined heat and power system of a transcritical CO2 power cycle coupled with a transcritical CO2 heat pump. The combined heat and power system comprises a primary power cycle, a secondary power cycle and a heat pump system with CO2 as a working medium and transcritical operation. The heat pump system comprises a condenser evaporator. The primary power cycle and the secondary power cycle have the same structure, and comprise a high / medium temperature heater, a primary / secondary turbine, a primary / secondary high temperature recuperator, a primary / secondary low temperature recuperator and a low pressure mixer. The low pressure mixer is connected to the condenser evaporator, and the condenser evaporator returns a hot side medium to the primary low temperature recuperator and the secondary low temperature recuperator through a booster pump. The application can realize the maximum efficiency of the segmented cycle and effectively improve the cycle efficiency by coupling the two-stage power cycle with the heat pump system, while realizing the gradient and deep utilization of heat in the high temperature zone, the medium temperature zone and the low temperature zone of the heat source.

The application provides a heat pump system, a control method of the heat pump system and a control device thereof. The heat pump unit comprises an indoor heat exchanger, an electronic expansion valve, an outdoor heat exchanger, a four-way valve and a compressor, the four-way valve is provided with a suction branch between the suction port of the compressor; the indoor heat exchanger and the outdoor heat exchanger are provided with a first heating branch, a second heating branch and a third heating branch in parallel, and are all provided with a first check valve; the first heating branch is provided with a first control valve and a heat storage device which is coupled with the suction branch in sequence; the second heating branch is provided with a heat-coupled enthalpy-increasing heat exchanger and an enthalpy-increasing auxiliary path, the enthalpy-increasing auxiliary path is connected to an enthalpy-increasing port of the compressor and is provided with an enthalpy-increasing control valve; the third heating branch is provided with a second control valve, a heat-coupled backflow auxiliary path and a backflow heat exchanger, the backflow auxiliary path is connected to the suction branch and is provided with a backflow control valve. The heat pump unit can produce high heat in a low-temperature environment when the user demand outlet water temperature is high.

The present application relates to a kind of methods for avoiding temperature internal pinch point problem in S-CO2 low temperature recuperation system, S-CO2 low temperature recuperation system includes low temperature recuperator, low temperature recuperator has high pressure tube bundle and low pressure tube bundle, first fluid flows into high pressure tube bundle, second fluid flows into low pressure tube bundle, the temperature of the inlet end of high pressure tube bundle is lower than the temperature of the inlet end of low pressure tube bundle;The method comprises: the intermediate flow of first fluid in low temperature recuperator is divided, and the heat capacity flow rate of first fluid in low temperature recuperator is kept less than the heat capacity flow rate of second fluid.The present application solves the internal pinch point problem that can appear in low temperature recuperator by the way of intermediate flow of low temperature recuperator, and cold fluid that is divided off is absorbed flue gas waste heat in boiler by low temperature economizer, on the one hand, the temperature of fluid after being divided off and the fluid that flows out from the outlet of low temperature recuperator is matched when being converged, on the other hand, energy-saving effect is achieved.

A Johnson Electric Heat Pipe direct heat to electricity converter includes a housing containing a wick, a vapor exchange recuperator, a two-phase working fluid, an ionizable non-condensable gas, preferably hydrogen or oxygen, and an electrochemical cell. The heat pipe is coupled to a heat source and a heat sink. The gas phase of the two-phase working fluid and the non-condensable gas exist at partial pressures within a constant pressure system. Heat from the source evaporates two-phase working fluid resulting in low partial pressure of non-condensable gas. Heat rejected to the heat sink condenses working fluid, resulting in high partial pressure non-condensable gas. The non-condensable gas partial pressure differential is applied across the electrochemical cell whereby non-condensable gas expands through the electrochemical cell and generates electrical energy. The vapor exchange recuperator recuperates a substantial portion of two-phase working fluid heat of condensation for use as two-phase working fluid heat of evaporation.

A gas refrigerating machine comprising: an input for a gas to be cooled; a recuperator comprising a first recuperator output; a compressor comprising a compressor input, the compressor input being coupled to the first recuperator output; a heat exchanger; a turbine; a gas output; and a housing, wherein the housing comprises a wall, wherein the input for the gas to be cooled is located in the wall, wherein the gas output is located in the wall, and wherein the recuperator, the compressor, the turbine and the heat exchanger are arranged in the housing.

1. The name of the design product: heat recovery device. 2. The use of the design product: heat recovery of waste water during operation of a dishwasher. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

The utility model pertains to ventilation equipment, specifically to heat recovery air handling units, and can be used for installation within domestic and special-purpose premises. According to the utility model, a heat recovery air handling unit has been created, which ensures a high level of heat exchange efficiency and high air exchange performance, which contains an external module with external supply and external exhaust grilles, inner module with plate recuperator, with internal intake and internal exhaust grilles, with a filter, with an inlet chamber of the exhaust duct, with an outlet chamber of the exhaust duct, with an inlet chamber of the intake duct, with an outlet chamber of the intake duct and a partition between the inlet and outlet chambers of the exhaust and intake ducts, respectively, with fans that form counter air flows, with the fan located in the inlet chamber of the intake duct, and the fan is located in the outlet chamber of the exhaust duct. Wherein, the system contains a condensate removal system, and the inner module consists of an on-wall and an in-wall part, with the in-wall part containing a module with fans installed in it.

Preheater burner unit (100) for a burner for the direct combustion of ammonia, with an outer jacket (50) and with a combustion chamber tube (30) which tapers towards a burner mouth (31) and in which at least one burner nozzle (40) is positioned, at which at least one ammonia supply line and one primary air line open, through which ammonia and fresh air are directed to the burner nozzle (40), characterized in that the ammonia supply line is led at least with a partial section of its length over the outer circumference of the combustion chamber tube (30) to the burner nozzle (40) and forms a heating channel there which contacts the outer circumference of the combustion chamber tube (30), the length of which is a multiple of the axial length of the combustion chamber tube (30).

Method for producing energy by means of a supercritical carbon dioxide (sCO2) regenerative Brayton cycle with N recuperators in series and N or N−1 auxiliary compressors, where N≥3. By using a higher number of recuperators in series and an auxiliary compressor for each recuperator, the heat recovery process is improved and thus the performance of the cycle compared to the cycles of the state-of-the-art.

A gas turbine engine comprises an engine core having first and second engine core exhaust paths arranged to pass first and second portions respectively of the mass flow of the engine’s core exhaust mass. A heat-exchange system comprises a recuperator system disposed within the first engine core exhaust path and arranged to transfer heat from said first portion to a buffer fluid, and a heat exchanger arranged to transfer heat from the buffer fluid to fuel within a fuel path arranged to convey fuel to the engine’s combustor. The engine provides for heat to be recovered from the engine’s core exhaust flow to the engine’s fuel supply, thus improving thermal efficiency, but without significantly impeding the engine core exhaust flow or presenting the significant fire or explosion risk associated with a recuperator arranged to heat fuel directly.

The application provides a combined system and method of ammonia gas cold energy gas turbine and CO2 Rankine cycle, comprising: an ammonia gas turbine module and a transcritical CO2 Rankine cycle module. The ammonia gas turbine module is provided with a first cooler, an ammonia gas preheater and an air preheater. Ammonia gas and air are mixed and combusted in a combustion chamber to generate flue gas and release heat. The flue gas is heated in a heat extractor and a flue gas low-temperature recuperator after doing work in an ammonia turbine. In the transcritical CO2 Rankine cycle module, the CO2 low-temperature recuperator and the flue gas low-temperature recuperator are connected in parallel, and then connected with a high-temperature recuperator and a heat extractor in sequence. The first-stage waste heat of the flue gas in the heat extractor is used to preheat the CO2 to the first stage. The preheated CO2 gas does work in a CO2 turbine. The high-temperature CO2 gas released is returned to the high-temperature recuperator and the CO2 low-temperature recuperator to be heated. The cold energy of liquid ammonia in the first cooler is used to cool the low-temperature CO2 gas to a temperature below the critical point and circulate in the transcritical CO2 Rankine cycle module.

An exemplary heat recovery air handling unit includes an inner module, an outer module, a central module with a plate recuperator, fans, an inlet chamber of the exhaust duct, an outlet chamber of the exhaust duct, an inlet chamber of the intake duct, an outlet chamber of the intake duct, and a partition between the inlet and outlet chambers of the exhaust and intake ducts, respectively. A recuperator of counterflow or crossflow type may be used as the plate recuperator, and the fans create opposing airflows. The heat recovery air handling unit also includes a condensate removal system.

An energy conversion plant is disclosed, having one or more driving units, for driving respective loads, such as an electric motor or a centrifugal compressor. The energy conversion plant comprises at least one heat exchange recuperator, for heating pre-compressed carbon dioxide to be fed into the driving units by the heat produced by the driving units themselves, and compression and pumping unit, for compressing the carbon dioxide. The carbon dioxide is also supplied by a fluid source auxiliary plants group.

The inventive technology, in embodiments, relates to the field of turbines, e.g., gas turbines, and may feature an inventive use of axial-in, axial components, e.g., compressor impeller and turbine wheel, and / or componentry such as impeller, turbine wheel, compressor diffuser, compressor diffuser and / or recuperator whose outer diameters are selected to reduce the radial space occupied by such components, and thus perhaps by the turbine itself. Certain embodiments may feature an inventive counterflow recuperator that achieves heat transfer between hot exhaust gas and pre-combustion gases, perhaps resulting in increases in, e.g., operation, spatial and / or other efficiency.

A gas turbine engine is configured to combust hydrogen fuel. The gas turbine engine comprises a fuel system comprising: a fuel pump configured to provide pressurised fuel to a core combustor of the gas turbine engine; a recuperator configured to heat fuel from combustion gases downstream of the core combustor; a fuel turbine downstream in fuel flow of the recuperator. The fuel turbine being configured to be driven by heated fuel and configured to power the fuel pump. Wherein the fuel turbine has an expansion ratio between 1.4 and 2.5.

An industrial assembly (80) having a gas turbine (90) includes a contaminant gas treatment device (70) capable of treating a gas stream emitted by the gas turbine (90). The treatment device (70) comprises a solid adsorbate (71), the industrial assembly (80) comprises a co-flow heat exchanger (40) capable of recovering the heat emitted by the turbine (90) and then transferring the heat to the fluid supply device (50) to heat the fluid (51), the treatment device (70) is capable of adsorbing pollutant gases from the gas stream to the adsorbate (71), and the treatment device (70) is capable of recovering the heat emitted by the turbine (90) and then transferring the heat to the fluid supply device (50) to heat the fluid (51). The adsorbate (71) is then desorbed by being heated by the fluid (51) to a heating temperature (Tc) at least equal to the desorption temperature (Td) of said adsorbate (71) and the pollutant gas supplied by this desorption is sent to a storage tank (60).

An aircraft engine, has: a compressor, a combustor downstream of the compressor, and a turbine; a recuperator having a heat absorption conduit fluidly connecting the compressor to the combustor and a exhaust conduit fluidly connecting the turbine to ambient air surrounding the aircraft engine, the heat absorption conduit in heat exchange relationship with the exhaust conduit; a compressor conduit fluidly connecting the compressor to the heat absorption conduit of the recuperator, the compressor conduit defining a bypass outlet upstream of the recuperator relative to the flow of the compressed air; and a closure at the bypass outlet, the closure having: a closed position in which the closure closes the bypass outlet; and an opened position in which the closure opens the bypass outlet, wherein the closure is structured to move from the closed position to the opened position upon a pressure drop through the recuperator exceeding a pressure drop threshold.