115 results about "Thermodynamic cycle" patented technology

The embodiment of the invention provides a compressor performance evaluation method and device, electronic equipment and a storage medium, and belongs to the technical field of refrigeration. The method comprises the following steps: constructing a thermodynamic cycle flow of the compressor under each preset condition according to a compression process of the compressor under a plurality of preset conditions; for each preset condition, based on the thermodynamic cycle flow of the compressor under the preset condition, a mathematical model of the compressor under the preset condition is constructed, and the mathematical model comprises a plurality of target performance parameters used for evaluating the performance of the compressor; fitting the mathematical model of the compressor under the preset condition with the thermophysical parameters of the refrigerant of the compressor to obtain the value of each target performance parameter of the compressor under the preset condition; and performing performance comparison evaluation on the values of the multiple target performance parameters of the compressor under each preset condition to obtain an evaluation result. According to the embodiment of the invention, the compressor performance can be quantitatively evaluated.

The invention relates to the technical field of automatic control theory application and data center thermal management, and discloses a data center emergency refrigeration control method based on state space model prediction, which comprises the following steps: establishing a thermodynamic cycle state space equation; the refrigeration flow set value change rate and the water return side pressure change amount are obtained, and the dynamic heat exchange sensitivity is determined; monitoring feedback current characteristics of the driving unit, inverting cooling path resistance distribution and updating gain matrix elements; calculating a state prediction information sequence according to the temperature vector prediction deviation, and adjusting a time domain step length; the dynamic heat exchange sensitivity is introduced into prediction logic, controlled variable dynamic pressure retardation is compensated, an emergency refrigeration frequency control instruction is output, fluid fluctuation is converted into sensitivity compensation of a logic level, non-linear dynamic pressure damping of the emergency working condition is effectively impacted, the problems of control overshoot and logic instability caused by physical lag are solved, and the reliability of the system is improved. And the refrigeration response precision at the emergency conversion moment is improved.

Various examples are provided related to airlift pumping of downhole geothermal fluids. In one example, an airlift system includes a compressor; a gas sparger head in a wellbore of a geothermal well, and a pressure head recycle assembly. The sparger head produces artificial lift of the geothermal fluids by injecting a gas resulting in a difference in density downhole. The entrained gas can be extracted by the pressure head recycle assembly, compressed, and reinjected downhole. The geothermal fluid at the well head can be used in direct use applications or in a thermodynamic cycle to make shaft power. The gas sparger head can include a venturi shaped passage extending through the gas sparger head and a bubble orifice including gas orifices radially spaced about a narrow portion of the venturi shaped passage. The gas orifices can have a corresponding resonant chamber through which the gas (e.g., air) is provided.

The invention discloses an independent unit structure of a high-voltage solid heat accumulator and a thermodynamic cycle system of the independent unit structure. An independent unit is composed of the solid heat accumulator, an electric heating body, a series connection conductive band, a parallel connection conductive band, an insulation foundation, a porcelain insulator, an equipment foundation, an upper heat preservation layer, a connection electrode, a null line electrode and an outer sleeve. Insulation porcelain bottles are uniformly arranged on an equipment foundation in an array mode, an insulation foundation is arranged on the upper portions of the insulation porcelain bottles, a solid heat accumulator is installed on the insulation foundation, and an upper heat preservation layer is arranged on the top of the solid heat accumulator. The two ends of the plurality of electric heating bodies are connected with the parallel conductive bands arranged on the vertical surfaces of the solid heat accumulator to form a parallel group, and the parallel group is connected with the series conductive bands arranged on the two corresponding vertical surfaces of the solid heat accumulator; according to an independent unit structure, the electric heating bodies form an angle connection form or a star connection form through a series connection conductive band and a parallel connection conductive band, and the connecting electrodes are externally connected to an A-phase power supply, a B-phase power supply and a C-phase power supply of the power supply switch through an external sleeve.

The invention relates to the technical field of aero-engines, and discloses an efficient thermal protection hybrid thermodynamic cycle combined engine and a control method thereof.The combined engine composed of an external rotary detonation engine and an internal turbine engine is adopted, and modal switching of the combined engine is achieved through an inlet adjusting valve and an adjustable exhaust nozzle; the working upper limit of a turbine engine can be effectively joined, power relay can be completed, so that a thrust gap is spanned, the structural design complexity is relatively low, the system stability is relatively high, and in a stress application rotating detonation mode, the reliability is high. Combustible mixtures sprayed by the rotary detonation engine are guided into the afterburner of the turbine engine through the afterburner diverter valve for detonation combustion, an original cooling device of the afterburner is used for thermal protection, and an outer casing is prevented from being damaged due to high temperature.

The invention discloses a thermal management system part type selection method, which belongs to the technical field of electric automobiles and comprises the following steps: dynamically calculating cooling and heating loads of a thermal management system; refrigerant side thermodynamic cycle parameters are matched; integrating and selecting key components of the thermal management system; constructing a multi-objective optimization function, and realizing parameter matching and capacity checking of a plurality of components; verifying the robustness and economy of a model selection scheme for multi-mode thermal management coupling under typical working conditions; according to the model selection method established based on dynamic coupling analysis, self-adaptive matching of a dynamic load model and refrigerant parameters is considered, and both precision and efficiency are considered; multi-loop coupling analysis is supported, the feasibility of redundant configuration and complex architecture can be quickly evaluated, multi-dimensional collaborative optimization is realized, and the trial and error cost is reduced; the method is suitable for forward design and iterative optimization of the new energy automobile thermal management system, the development cost can be remarkably reduced, and the system energy efficiency can be improved.

A cold energy recovery facility includes a liquid hydrogen tank configured to store liquid hydrogen a first circuit configured to circulate a first working medium, a second circuit configured to circulate a second working medium having a freezing point higher than the first working medium, a first turboexpander provided in the first circuit, the first turboexpander being configured to be driven by the first working medium in a gas state, a second turboexpander provided in the second circuit, the second turboexpander being configured to be driven by the second working medium in a gas state, a first heat exchanger configured to vaporize the liquid hydrogen from the liquid hydrogen tank by heat exchange with the first working medium, a second heat exchanger configured to vaporize the first working medium in a liquid state by heat exchange with the second working medium, and a third heat exchanger configured to vaporize the second working medium in a liquid state by heat exchange with a heat medium, wherein the first circuit and the first turboexpander form a part of a first thermodynamic cycle that uses the liquid hydrogen as a low-temperature heat source in the first heat exchanger, and the second circuit and the second turboexpander form a part of a second thermodynamic cycle that uses the first working medium as a low-temperature heat source in the second heat exchanger.

The invention provides a multi-mode combined cooling and power generation system based on efficient waste heat utilization and an operation method of the multi-mode combined cooling and power generation system. The multi-mode combined cooling and power generation system comprises an organic Rankine cycle and absorption type refrigeration cycle integrated low-grade cold energy production mode and an organic Rankine cycle and vapor compression type refrigeration cycle integrated medium-grade cold energy production mode. A high-grade cold energy production mode integrating organic Rankine cycle, absorption type refrigeration cycle and vapor compression type refrigeration cycle is adopted, in order to achieve gradient utilization of waste heat, the system considers the waste heat utilization sequence of thermodynamic cycle at the same time, and the waste heat is firstly utilized by the absorption type refrigeration cycle and then recovered by the organic Rankine cycle; waste heat is recycled through the organic Rankine cycle and then is utilized by the absorption type refrigeration cycle, and the waste heat is simultaneously recycled by the absorption type refrigeration cycle and the organic Rankine cycle after being shunted. Efficient cogeneration of cold electricity is achieved through gradient utilization of waste heat and heat-work coupling between circulation, multiple possibilities of a waste heat utilization path are considered, and the waste heat recovery rate is increased.

The invention provides a thermodynamic cycle system applied to a steam turbine. The thermodynamic cycle system comprises a boiler, the steam turbine and a vortex tube. The boiler generates steam with first temperature; the steam turbine discharges a first path of steam with second temperature to the vortex tube, a second path of steam with second temperature is discharged to the liquid inlet of the boiler, the vortex tube separates the first path of steam into hot steam with third temperature and cold steam with fourth temperature, and the hot steam with third temperature is recycled to the steam turbine; the steam turbine drives mechanical equipment through hot steam with the third temperature, cold steam with the fourth temperature is discharged to the liquid inlet of the boiler, the third temperature is higher than the second temperature, and the fourth temperature is lower than the second temperature; wherein the cold steam with the fourth temperature cools the second path of steam to generate cooling liquid, the cooling liquid enters the boiler from a liquid inlet of the boiler, the steam with the first temperature is generated after heating, a vacuum water ring pump and a condenser are omitted, and energy is saved.

The application relates to the technical field of pipeline fixing, and particularly discloses a boiler steam turbine thermal cycle pipeline fixing device and a working method, which comprises a support rod fixedly installed on a wall top, an auxiliary assembly for adjusting the installation angle of a pipeline is arranged on the outer wall of the support rod, an installation ring is arranged at one end of the auxiliary assembly, a fixing ring is slidably connected to one end of the installation ring, and a fixing assembly for quickly fastening the pipeline is arranged in the fixing ring; the fixing assembly is arranged, the cycle pipeline can be quickly fixed, and the auxiliary assembly is arranged, so that the installation angle of the cycle pipeline can be adjusted.

The invention discloses an anti-scaling efficient evaporative water cooling system, which belongs to the technical field of refrigeration and heat pumps, comprises a compressor, a first heat exchanger, a second heat exchanger, a throttling component and a third heat exchanger which are connected through a four-way reversing valve, and is characterized in that the first heat exchanger and the second heat exchanger are connected in series on a refrigerant loop; and in the refrigeration mode, the refrigerant is pre-cooled by the first heat exchanger and then enters the second heat exchanger. According to the invention, the inlet temperature of the evaporative condenser is reduced from the source, and the generation of scale is effectively inhibited; and meanwhile, through thermodynamic circulation of staged cooling and two-stage evaporation, the energy efficiency and low-temperature adaptability of the system in a refrigerating and heating mode are remarkably improved, and the reliability of the system is enhanced.

Reactive working fluid for cyclic thermodynamic conversion machines, said working fluid, forming a monomer / dimer couple, said working fluid comprising a compound capable of reversibly associating / dissociating, during each thermodynamic cycle, by formation / breakage of Van der Waals bonds.

The utility model discloses a hot spring geothermal turbine sustainable power generation system, which comprises a thermodynamic cycle system and a power generation system, the thermodynamic cycle system comprises a condenser and a flash evaporator, the condenser is communicated with the flash evaporator, the flash evaporator is communicated with the power generation system, and the power generation system is communicated with the power generation system. One end of the flash evaporator is used for being communicated with a hot spring geothermal well, and one end of the condenser is used for being connected with a heat dissipation assembly. And the power generation system is connected between the condenser and the flash evaporator and is communicated with the condenser and the flash evaporator to form a thermodynamic circulation loop. According to the technical scheme provided by the utility model, a sealed thermodynamic cycle loop is formed, no pollution emission is generated in the power generation process, the natural environment is not influenced, the performance is reliable, the efficiency is high, the maintenance is basically not needed, the service life is long, and the problems of low efficiency, low cost and the like of the existing organic Rankine cycle power generation technology are solved. And energy sources such as terrestrial heat and hot spring cannot be utilized more efficiently, and the heat exchange efficiency of the whole power generation system is improved.

The invention discloses an energy conversion method and device based on a gravity field gas vertical pressure gradient, and relates to the technical field of gravity field gas thermodynamic cycle and energy conversion. Comprising the steps that a closed circulation channel composed of a gas conveying power unit, a gas conveying expansion unit, an acting output unit and a gas backflow unit is filled with working gas; the working gas at the low position is driven to rise in the vertical direction, adiabatic expansion and acceleration are carried out under the pressure decreasing condition, and gas internal energy and pressure energy are converted into kinetic energy; the high-speed gas is guided into the acting output unit to drive the generator set to generate electricity; and the acting gas naturally settles and is compressed in the backflow channel by virtue of gravity, exchanges heat with the environment in the settling process to recover the initial state, and then enters the power conveying unit again. According to the invention, a closed circulating acting path utilizing the vertical pressure gradient of the gravity field is constructed, and the comprehensive utilization efficiency of low-grade heat energy and gas pressure energy is improved.

The invention relates to a coaxial heat exchanger (1) for reversible operation with an inner tube (2) on the outside (21) of which ribs (25) with a rib height (H1) are formed, and with an outer tube (3) arranged coaxially to the inner tube (2) on the inside (32) of which projections (35) are formed which extend substantially radially from the tube wall (30) of the outer tube (3) and continuously along the inside (32) of the outer tube (3). The projections (35) of the outer tube (3) form an angle of at least 60° with the ribs (25) on the outside (21) of the inner tube (2) and are connected to them, thereby forming several parallel, flowable channels (4) between the tube wall (30) of the outer tube (3) and the tips (26) of the ribs (25) of the inner tube (2), each having a cross-sectional area (A2) measured transversely to the flow direction and a channel height (H2).Adjacent channels (4) are each separated from one another by a projection (35) of the outer tube (3). The ratio of the cross-sectional area (A1) of the inner tube (2) to the sum of the cross-sectional areas (A2) of all channels (4) is at least 0.5 and at most 5. The invention further relates to a thermodynamic cycle with such a coaxial heat exchanger and a method for operating such a cycle.

The present application relates to the technical field of advanced thermodynamic cycle, in particular to a very low temperature heat energy recycling system and method based on advanced thermodynamic cycle. It comprises: a heat source guide and heat absorption unit for pretreating low temperature heat source and transmitting heat data to mixed working medium through a heat exchange module; a heat energy conversion and working medium compression unit for receiving heat data to convert heat data and compress working medium; a heat recovery and heat release unit for reducing the temperature of working medium through constant pressure heat exchange and transferring heat data to a Rankine cycle to do work; and a working medium expansion and compression energy recycling and refrigeration unit for adiabatic expansion of high pressure and low temperature working medium to further reduce the temperature and pressure of working medium and provide cooling energy to the system. The present application can maximize the recycling and utilization of waste low temperature heat energy by using advanced thermodynamic cycle, especially high efficiency energy conversion mechanism in very low temperature range.

The utility model discloses a coal-fired unit rapid and flexible peak and frequency regulation system based on high-temperature working medium energy storage / supply, which relates to the field of conventional power generation technology and energy storage technology and comprises a coal-fired unit thermodynamic cycle system and a high-temperature furnace water energy storage / supply system, the high-temperature furnace water storage and supply / energy system is deeply coupled with the coal-fired unit thermodynamic cycle system, and the power capability and the power generation load of the coal-fired unit are quickly improved by reducing the steam extraction amount of each stage of a steam turbine in the coal-fired unit thermodynamic cycle system, so that the climbing rate of the coal-fired unit is improved; and meanwhile, through direct cooperative energy supply of the high-temperature boiler water storage / energy supply system, the high-enthalpy-value working medium stored by the high-temperature boiler water storage / energy supply system heats boiler feed water in the regenerative system, the temperature of the boiler feed water is increased, then the boiler steam yield is increased, and the rapid variable load response capacity of the coal-fired unit is improved.

The invention discloses a vaporizing chamber for an aero-engine and the aero-engine, and relates to a vaporizing chamber and an aero-engine. The problems that an existing aero-engine is remarkable in infrared signal, limited in heat efficiency and high in carbon emission are solved. Through the innovative design of liquid nitrogen-air thermodynamic cycle, liquid nitrogen is gasified and expanded and mixed with high-temperature air to do work, fossil fuel does not need to be combusted, the traditional combustion process is replaced, the three core advantages of zero carbon emission, high invisibility and low noise of an aviation propulsion system are achieved, and the risk of infrared detection is reduced. And secondly, the method is suitable for stealth aircrafts, low-temperature environment working platforms and zero-carbon-emission aircrafts, and conforms to the green aviation development trend. Meanwhile, the power density limitation of a liquid nitrogen working medium in the aviation field is broken through, and a feasible technical path is provided for invisible aircrafts and green aviation. The invention belongs to the technical field of aviation propulsion systems.

A plant and method for energy management that performs a closed thermodynamic cycle conversion (TTC) between a gas holder (2) for storing gaseous carbon dioxide at a first storage pressure (PAG') in equilibrium with atmospheric pressure and a mass reservoir (11) for storing liquid carbon dioxide at a second storage pressure (PA'H), first in one direction during the filling phase and then in the opposite direction during the release phase. During the filling phase, it is provided to remove heat from the mass reservoir (11) to condense a portion of the vapor phase of carbon dioxide contained therein and to maintain the second storage pressure (PA'H) constant or substantially constant. During the release phase, it is provided to transfer heat to the mass reservoir (11) to evaporate a portion of the liquid phase of carbon dioxide contained therein and to maintain the second storage pressure (PA'H) constant or substantially constant.

The invention relates to a system and method for storing electrical energy based on a closed thermodynamic cycle. It makes it possible to store electrical energy in a very efficient, economic and safe way. No environmentally harmful or expensive materials are required. The system comprises a compressor, a turbine and two packed bed storage units operating at different temperature levels. To charge the packed bed storage units, the cycle is operated as a counterclockwise heat pump process. In this process, the heat generated at the outlet of the compressor is expanded into the first packed bed storage unit at a high temperature level and stored therein. The "cold" generated during the subsequent expansion of the gaseous working medium in the turbine is stored in the second packed bed storage unit. This requires mechanical energy provided by an electric motor. To enable the energy storage system to deliver power, the cycle is operated in reverse (i.e. as a clockwise working cycle). Before entering the compressor, the working medium is cooled using the cold stored in the second packed bed storage unit, and after compression, heat is absorbed from the high-temperature packed bed storage system. The high-pressure hot working medium is expanded by means of the turbine, thereby generating energy.

The utility model discloses a carbon capture system after industrial combustion, which belongs to the technical field of carbon capture and comprises an absorption tower and a desorption tower, and the absorption tower is connected with the desorption tower through a barren liquor pipeline and a rich liquor main pipeline; a top outlet of the desorption tower is connected with a condenser through a steam pipeline; the barren liquor pipeline is provided with a barren / rich liquor heat exchanger; the steam pipeline is provided with a heat exchanger; the rich liquid main pipeline comprises a first rich liquid pipeline passing through the lean / rich liquid heat exchanger and a second rich liquid pipeline passing through the heat exchanger; the interstage cooling pipeline is arranged on the absorption tower; a second cooler and a first centrifugal pump are arranged on the interstage cooling pipeline in series. Through the interstage cooling pipeline, the interior of the absorption tower which is in reaction is cooled, and the situation that the absorption rate of CO2 is reduced and increased due to temperature rise is avoided; one path of rich liquor passes through a lean / rich liquor heat exchanger and is heated by utilizing waste heat of high-temperature lean liquor, and the other path of rich liquor passes through a heat exchanger and is preheated by utilizing waste heat of high-temperature steam; and the thermodynamic cycle efficiency of the system is optimized.

A kind of topology-driven thermodynamic cycle system steady-state operation data acquisition method;The thermodynamic cycle system steady-state operation data acquisition method in the present application is to obtain the topology structure corresponding to various devices in the constructed thermodynamic cycle system, establish a topology standard information library after analyzing and identifying the corresponding topology structure, establish the corresponding constraint equation according to the topology standard information library, obtain the output system steady-state operation data through the calculation of the corresponding constraint equation, the process of obtaining the topology structure corresponding to various devices in the constructed thermodynamic cycle system is to obtain the topology structure corresponding to the constructed thermodynamic cycle system, determine the composition structure and connection relationship corresponding to the topology structure, and identify the composition structure and connection relationship corresponding to the topology structure;The present application analyzes the system topology structure and automatically constructs the system thermodynamic equation, realizes the unified modeling and solving of the thermodynamic cycle system, so as to improve the generality and standard corresponding automation of system modeling.

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.

The present invention relates to an internal combustion engine provided with an optimized intake system. The engine derives from a traditional diesel cycle engine but is modified and optimized in its intake system to achieve performance superior to that of traditional diesel engines. According to the invention, some main characteristics of the timing system are modified to obtain, when required, a specific behavior of the intake valve lift curve. By operating in this way, it is possible to carry out an internal recirculation of the burnt gases, a reforming of the fuel (for example, from ammonia to hydrogen), a thermodynamic cycle similar to a Miller cycle.

A method includes using an isochoric displacement through a valved or ducted thermal regenerator to raise the pressure of a vaporized reactant or vaporized reactant constituent as a means to regeneratively capture waste exhaust heat from the product or product constituents of a previous endothermic dissociation of a previous charge of said reactant.

The invention provides a plateau photovoltaic converter monitoring method and system based on physical information fusion, and the method comprises the steps: carrying out the modal feature extraction, interaction, multi-time-sequence feature extraction and channel compression of multi-dimensional key data, and mining the data value; the physical constraint fusion layer fuses physical constraints such as power conservation, thermodynamic cycle and insulation degradation into model training to ensure that modeling accords with physical reality and improve monitoring credibility and accuracy; the high and cold adaptive decoder calculates a health index based on accumulated damage and a thermal resistance change rate, early warns potential faults, and optimizes the performance of the converter to adapt to a plateau environment; a label-free training mechanism improves the problem of scarcity of labeled data, and the generalization and robustness of the model are improved; the lightweight model design and the efficient inference engine are integrated, and efficient and stable operation of the system on an embedded platform is guaranteed. According to the invention, the monitoring precision and the fault early warning timeliness are significantly improved, and a comprehensive, efficient and intelligent solution is provided for reliability monitoring of the plateau photovoltaic converter.

This application discloses an oxygen-enriched turbine engine and a thermodynamic cycle method for the oxygen-enriched turbine engine. It includes an oxygen-enriched gas generator, a turbine, a compressor, an oxygen-enriched gas auxiliary atomizing injector, and an actively cooled combustion chamber. The oxygen-enriched gas generator includes an oxidant inlet, an oxidant collection chamber, a catalytic bed, a reaction chamber located downstream of the catalytic bed, a fuel inlet and an oxygen-enriched gas outlet located on the side wall of the reaction chamber. A valve on the fuel supply pipeline controls the fuel flow, enabling two operating modes for the oxygen-enriched gas generator: a dual-component oxygen-enriched combustion mode (oxidant and fuel) and a single-component catalytic decomposition mode (oxidant only). This application addresses the problems of coking and carbon buildup, poor combustion organization, and limited turbine work capacity in oil-rich cycle combined power systems.

The invention discloses an efficient thermodynamic cycle intensive system suitable for comprehensive recovery of cold and hot energy of an offshore oil and gas platform, which comprises a three-stream cooling heat exchanger and a four-stream cooling heat exchanger, the three-stream cooling heat exchanger and the four-stream cooling heat exchanger construct double Rankine cycles to realize gradient utilization of energy, the first Rankine cycle is connected in series with the two cooling heat exchangers through working medium pipelines, and the second Rankine cycle is connected in series with the four-stream cooling heat exchangers through working medium pipelines. The second Rankine cycle is independently arranged on the four-stream cooling heat exchanger; the low-temperature liquid hydrocarbon and the low-temperature natural gas are conveyed out after being subjected to heat exchange step by step through the two cooling heat exchangers, cold energy and low-temperature waste heat are recovered synchronously, and the double-expansion generator set is driven to generate power. One set of device is adopted to recover the cold energy of low-temperature liquid hydrocarbon and low-temperature natural gas of a low-temperature condensation dealkylation device at the same time, different recovery processes do not need to be independently arranged, waste heat of an offshore oil and gas platform or similar scenes is recovered at the same time, cold energy and heat energy are coupled and matched, and efficient thermodynamic cycle of temperature difference energy power generation is developed; from the perspective of thermodynamic cycle, the process is simplified, the intensification of the device is realized, and energy conservation and carbon reduction are facilitated.

The invention relates to a numerical analysis method for condensation heat exchange capacity of a plate-fin heat exchanger, which comprises the following steps of: constructing a reverse Carnot principle thermodynamic cycle experimental device, and selecting the plate-fin heat exchanger with sawtooth fins; working conditions are designed according to an improved Wilson graphical method, and experimental parameters such as inlet and outlet temperature and flow and fin structure and working medium physical property parameters are obtained; a numerical model is built based on energy conservation and the Newton cooling law, a water side heat exchange coefficient empirical formula and a refrigerant side heat exchange coefficient empirical formula are fitted, the water side adopts an improved Wilson graphical method considering fluid properties, and an equivalent Reynolds number containing gas-liquid two-phase parameters is introduced into the refrigerant side; verification shows that the water side low Reynolds number error is less than or equal to 15%, the high Reynolds number is less than or equal to 10%, and the refrigerant side error is within + / - According to the method, continuous data estimation is realized through numerical fitting, the structure of the power-assisted heat exchanger is optimized, and a rapid and accurate heat exchange performance design tool is provided for an automobile R1234yf system.