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1145 results about "Thermal techniques" patented technology

Single-phase and two-phase immersion liquid cooling method and system based on AI intelligent decision

The invention relates to the technical field of data center heat dissipation, and particularly provides a single-phase and two-phase immersion liquid cooling method and system based on AI intelligent decision, and the method comprises the steps: injecting coupled data into a dynamic feature extraction engine, and outputting a thermodynamic state evolution tensor which comprises the characteristics of a temperature change rate, a load-heat flux density coupling coefficient and the like; the thermodynamic state evolution tensor is input into the deep neural network model, the temperature and pressure matched with the current thermodynamic state evolution tensor are calculated, and a closed-loop control instruction set capable of being executed by equipment is generated; a closed-loop control instruction set is injected into an execution mechanism set, execution mechanisms execute power reconstruction and flow channel switching according to instructions, gaseous fluorinated liquid is liquefied and flows back through an efficient condenser in a two-phase mode, and heat dissipation mode self-adaptive switching and heat cycle reconstruction are achieved. The system comprises a server, an AI algorithm controller, a cooling liquid storage device, a condenser, a circulating pump, an electric valve, a pressure release valve and a temperature sensor. The heat dissipation efficiency and the system reliability are remarkably improved.
Owner:TIANJIN TIER TECHNOLOGY CO LTD

Cooling circulation system of multi-core processor and control method thereof

The invention discloses a control method for a cooling circulation system of a multi-core processor, and relates to the technical field of computer hardware heat dissipation, and the control method comprises the following steps: the multi-core processor is responsible for executing a calculation task; the sensor module monitors the temperature of each core; the cooling system control module is used for receiving data from the temperature sensor and the load monitoring module, calculating the cooling requirement of each core according to the data and commanding a cooling unit to adjust; the cooling unit is used for adjusting cooling equipment to reduce the temperature of the processor according to an instruction of the control unit; and the debugging interface is used for monitoring the state of the system and displaying the temperature, the load and the cooling resource distribution condition of each core. The method has the beneficial effects that the rotating speed of the fan, the liquid cooling flow and the working state of the heat pipe system can be accurately controlled by combining the accurate analysis of the load change and the temperature data, the heat dissipation efficiency of the processor is improved, and the energy waste is reduced.
Owner:KING BEST TECH CO LTD

Intelligent scheduling method and system for multi-energy cooperative heat supply

The invention relates to the technical field of heat supply, and provides an intelligent scheduling method and system for multi-energy cooperative heat supply, and the method comprises the steps: constructing a multi-time scale division mechanism, processing time scales, and dividing the time scales into a long-term time scale, a medium-term time scale and a short-term time scale; aiming at a long-term time scale, constructing an LSTM-Transfer hybrid model to predict renewable energy output and thermal load demand; for the mid-term time scale, dynamic rolling optimization is adopted, and multi-objective optimization is achieved through an NSGA-III algorithm; and for the short-term time scale, constructing a deep reinforcement learning DRL model, and performing dynamic compensation control through the deep reinforcement learning DRL model. According to the method, different processing strategies are used for different time scales, collaborative optimization can be carried out on multi-energy heat supply on multiple time scales, and the overall scheduling effect is improved.
Owner:FOSHAN JUYANG NEW ENERGY CO LTD

Cold plate-immersion liquid cooling cooperative heat dissipation method based on steam zone coupling modeling

The invention discloses a cold plate-immersion liquid cooling cooperative heat dissipation method based on steam zone coupling modeling, and relates to the technical field of cooperative heat dissipation. Comprising the following steps of S1, collecting collaborative heat dissipation monitoring data of each key position in real time, and performing data preprocessing; s2, the comprehensive risk of the steam area is judged, and a risk cooling adjustment instruction is issued according to the comprehensive risk judgment result; s3, receiving a risk cooling adjustment instruction, carrying out collaborative heat dissipation, evaluating the collaborative heat dissipation capability, adjusting the rotating speed of a circulating pump and the opening degree of a valve, and requesting condensation backflow adjustment; s4, judging the adjusting quantity of condensation reflux, executing reflux adjustment and performing safety monitoring; and S5, continuously monitoring the data of each link, and carrying out anomaly detection on the state of each link to realize anomaly regulation and control. The problems that in an existing single-phase cold plate or two-phase immersion liquid cooling mode, steam accumulation is prone to occurring in a high-heat-flow scene, so that the pressure intensity is increased, the boiling point is increased, and the heat exchange efficiency is reduced, and then the operation reliability of equipment is affected are solved.
Owner:TIANJIN TIER TECHNOLOGY CO LTD

Phase change microcapsule doped flexible cooling fiber fabric and preparation method thereof

The invention belongs to the technical field of composite fiber materials, and relates to a functional thermal management fabric, in particular to a phase change microcapsule doped flexible cooling fiber fabric and a preparation method thereof. The fabric has a controllable double-layer structure and is formed by assembling nanofibers and micro-nanofibers doped with a large number of phase change microcapsules. Wherein the micro-nano fiber layer has relatively high sunlight reflectivity and atmospheric window wave band emissivity, and shows an excellent radiation cooling effect; the microcapsule content of the nanofiber layer doped with a large amount of phase change microcapsules is not less than 10 wt%, and the nanofiber layer has no rupture phenomenon, has high heat storage capacity, not only makes up for the deficiency of radiation cooling capacity, but also effectively slows down temperature fluctuation. The radiation cooling technology and the phase change latent heat technology are combined, so that the long-time temperature control performance of the fabric is realized, and the thermal shock resistance is enhanced. In addition, the fabric also has excellent mechanical property, flexibility, washability, air permeability, moisture penetrability and sunscreen property.
Owner:SOUTHEAST UNIV

Full-automatic electric heating system and device based on integrated heat storage technology

The invention relates to the field of crude oil heating, in particular to a full-automatic electric heating system and device based on the integrated heat storage technology, and the system comprises a temperature scale module, a heating module and a heat storage module. The heating module is provided with all temperature control nodes of the oil gathering pipeline, target temperature difference compensation, pipe section heat loss compensation and a flow velocity correction factor are integrated, and adaptive electric heating power of all the temperature control nodes of the oil gathering pipeline is generated through a reverse cascade feedback control algorithm. The heat storage module continuously collects temperature field characteristics, operation condition characteristics and medium thermal attributes of the oil gathering pipeline, judges whether heat storage operation is triggered or not through multi-dimensional coupling evaluation, distributes heat storage media through a priority algorithm, drives a valve to switch and execute adaptive heat storage operation, and achieves precise temperature field regulation and control and energy efficiency optimization of the oil gathering pipeline. And stable crude oil transportation is guaranteed.
Owner:SHANGHAI SHENGYU TECH CO LTD

Transistor high-power electromagnetic thermal model optimization system based on deep learning

The invention discloses a transistor high-power electromagnetic heat model optimization system based on deep learning, and relates to the technical field of electromagnetic heat. Comprising an input module, a deep learning module, a global optimization module, an online adaptive module and a real-time simulation module. The input module obtains various key parameters and constructs a high-dimensional input space; the deep learning module constructs a deep learning model by embedding a physical constraint and uncertainty quantization mechanism; the global optimization module is used for carrying out global search on design parameters, rapidly evaluating a target function by utilizing an agent model, and searching a Pareto optimal solution in a design parameter space; the online adaptive module is used for drift detection and updating; the real-time simulation module simulates an electromagnetic field and a thermal field in real time, and data exchange ensures timely synchronization of boundary data through dynamic scheduling and load balancing; all the modules cooperate with one another through data and feedback, and a complete, closed-loop and continuously self-adaptive updating optimization system is achieved.
Owner:QINGDAO JINGXIN SEMICON CO LTD

Server heat dissipation regulation and control method and device and computer storage medium

The invention relates to the technical field of server heat dissipation, in particular to a server heat dissipation regulation and control method and device and a computer storage medium. The method comprises the following steps: acquiring a temperature value, access flow data to be processed and processing speed data; determining a state value of the server; carrying out forward dislocation on the temperature sequence, and carrying out temperature delay correction according to the correlation between a dislocation sequence obtained after dislocation and a state sequence to obtain a target sequence; determining abnormal change moments according to the target sequence and the state sequence, further determining temperature change time periods, and determining a change extension index of each abnormal change moment according to numerical distribution of temperature values in each temperature change time period; and determining the heat dissipation power at the current moment according to the change extension index at the abnormal change moment before the current moment and the state value and the temperature value at the current moment. According to the invention, the temperature regulation and control delay effect can be reduced, the operation strategy of heat dissipation is optimized, active heat dissipation regulation and control are realized, and the energy efficiency ratio is improved.
Owner:SHENZHEN STONE TECH HLDG CO LTD

Networking control method, device and system based on Internet of Things intelligent heat supply technology

The invention relates to a networking control method, device and system based on an internet-of-things intelligent heat supply technology, and is suitable for the technical field of intelligent heat supply. According to the method, user heat supply related parameters are input into a prediction model obtained through training under theoretical conditions, a prediction value is output, and environment offset parameters capable of performing sum representation on all complex parameters influencing the indoor heat supply temperature of a user are obtained through difference comparison between the prediction value and a corresponding actual value. The subsequent heating demand temperature value of the user is accurately compensated and corrected based on the obtained environment offset parameter, so that the corresponding heating compensation amount can be accurately reserved according to the heating temperature deviation caused by the influence of the environment parameter of the user when the heating primary side supplies heat, the heating is more accurate and reasonable, and the user experience is improved. The heat supply demand of the user is successfully guaranteed, heat supply resources are not wasted, and the intelligent heat supply efficiency is improved.
Owner:SHANAN LANTIAN ENERGY SAVING TECH CO LTD +1

Test method of composite nanoparticle latent heat system based on Fibonacci fractal tree-shaped fins

The invention relates to the technical field of phase change heat storage, in particular to a test method of a composite nanoparticle latent heat system based on a Fibonacci fractal tree-shaped fin. The test method comprises the following steps: firstly, establishing a physical model of a nanoparticle three-sleeve vertical latent heat system based on the Fibonacci fractal tree-shaped fin; secondly, performing two-dimensional simulation analysis on the physical model by adopting a two-dimensional model, simulating the melting and solidification process of the PCM, analyzing the heat transfer performance and energy storage efficiency of the system, building an experimental device of a nano-particle three-sleeve vertical latent heat system based on the Fibonacci fractal tree-shaped fins, selecting proper PCM and nano-particles, simulating different working conditions, and establishing a three-sleeve vertical latent heat system based on the nano-particle three-sleeve vertical latent heat system based on the Fibonacci fractal tree-shaped fins. And finally, comparing a simulation result with an experimental result, adjusting parameters of a simulation model, improving the accuracy of the simulation result, analyzing the influence of different fin bifurcation angles, nanoparticle types, wall surface temperatures and fin materials on the heat transfer performance and energy storage efficiency of the system, and providing guidance for optimal design of the system.
Owner:CHONGQING UNIV

Electric scooter driving system heat dissipation method, device and equipment and storage medium

The invention relates to the technical field of driving system heat dissipation, and discloses an electric scooter driving system heat dissipation method, device and equipment and a storage medium, and the method comprises the steps: inputting heat source distribution data and spatial constraint data of a driving system in an electric scooter into a two-stage optimization model for heat dissipation structure calculation, and obtaining heat dissipation channel parameters; performing partition sampling and real-time synchronization on the heat source temperature and the radiator temperature to obtain heat flow distribution characteristics; carrying out heat conduction model calculation and multi-region temperature classification to obtain temperature dynamic distribution data, and carrying out heat flow prediction calculation to obtain heat flow prediction data; performing thermal disturbance analysis and adaptive compensation on the heat flow prediction data to obtain a heat dissipation compensation parameter; according to the heat dissipation control method, the problem that the space utilization rate of a traditional heat dissipation scheme is low is solved, and the heat dissipation effect of the driving system is improved.
Owner:SHENZHEN LEQI INTELLIGENT TECH CO LTD

Heat dissipation method for high-power device in logging instrument

The invention discloses a heat dissipation method for a high-power device in a logging instrument, and relates to the technical field of heat dissipation of logging instruments. The heat dissipation management system is realized based on a heat dissipation management system, and the heat dissipation management system comprises a heat conduction module which adopts a heat pipe or a heat plate made of a high-heat-conductivity-coefficient material and is used for rapidly conducting heat generated by a high-power device to a heat dissipation module; and the heat dissipation module comprises a plurality of heat dissipation fins and / or fans which work in parallel, the heat dissipation fins improve the heat dissipation efficiency by increasing the heat dissipation area, and the fans enhance air flow through forced convection to promote heat exchange. The heat pipe or the heat plate made of the high-heat-conductivity-coefficient material is adopted, heat is quickly conducted to the heat dissipation module, and accumulation of the heat at a source is effectively reduced; the control module dynamically adjusts a heat dissipation strategy according to real-time temperature monitoring data, such as the fan rotating speed and fluid circulation, and it is ensured that the heat dissipation effect is matched with the actual requirement.
Owner:HEBEI HUANDING PETROLEUM EQUIP CO LTD +1

Thick film heater adopting indirect heat dissipation technology

The invention belongs to the technical field of heating devices, and discloses a thick film heater adopting an indirect heat dissipation technology, which comprises a main shell and a film heating plate, the film heating plate is connected with a radiator, the radiator is connected with heat dissipation fins, the inner side of a heating cavity is connected with a sealing element, and the main shell is connected with a water inlet pipe and a water outlet pipe. A heat dissipation water channel is defined by the heat dissipation device, the heat dissipation fins and the water closing plate, the main shell is connected with a PCBA circuit control board, and the main shell is connected with a low-voltage connector and a high-voltage connector. According to the technical scheme, due to the arrangement of the radiator and other structures, the situation that the radiating fins are directly welded to the heating plate to cause deformation of the heating plate to affect the heating effect or insulation faults is avoided, the radiator and the radiating fins are integrally die-cast, the heat exchange area is greatly increased, the heat exchange coefficient is increased, the heater cannot be locally overheated, and the service life of the heater is prolonged. The tolerance robustness of bubbles existing in a whole vehicle cooling liquid system is enhanced, and the use stability of the heater is greatly improved.
Owner:SHANGHAI FENGTIAN ELECTRONICS

Cooling equipment control method and device, equipment and storage medium

The invention discloses a heat dissipation equipment control method and device, equipment and a storage medium, and relates to the technical field of heat dissipation, and the method comprises the steps: collecting the actual operation feature data of heat dissipation equipment at a preset time interval, carrying out the feature processing of the actual operation feature data, obtaining the time sequence feature data of the heat dissipation equipment, and obtaining the time sequence feature data of the heat dissipation equipment; when a preset number of time sequence feature data is continuously collected, predicted operation feature data is obtained through a time sequence prediction model according to the time sequence feature data of the heat dissipation equipment, the predicted operation feature data and the time sequence feature data serve as input of a reinforcement learning model, and a control strategy of the heat dissipation equipment is generated; and the heat dissipation equipment is controlled according to the control strategy, so that the technical problem that the heat dissipation effect of the equipment load is reduced can be solved, and the heat dissipation effect is improved.
Owner:INSPUR SUZHOU INTELLIGENT TECH CO LTD

Distributed energy station heat supply load prediction method based on LSTM

The invention discloses a distributed energy station heat supply load prediction method based on LSTM, relates to the technical field of distributed energy station heat supply, and provides a distributed energy station heat supply load prediction method based on a long short-term memory network. Through learning past historical operation data, weather data, building data and time data of each distributed energy station after abnormal processing of an isolated forest algorithm, a unique memory mechanism and a gating structure of LSTM are applied to analyze a heat supply load change rule of the energy station. And the most reasonable outlet water temperature or return water temperature in a certain hour in the future is predicted according to real-time data and is issued to the energy station in time, the heating temperature of the air source heat pump is adjusted, accurate heat supply regulation and control are achieved, room temperature balance can be effectively maintained, the COP value of the energy station is increased, and work orders and energy waste are reduced.
Owner:SHANDONG HETONG INFORMATION TECH CO LTD

Linear motor heat dissipation structure based on T-shaped vapor chamber

The utility model relates to a heat dissipation structure of a linear motor based on a T-shaped vapor chamber, and relates to the technical field of heat dissipation of linear motors, the linear motor comprises a base, a stator and a rotor which are matched with each other are arranged on the base, and the rotor is connected with a sliding block and arranged on the stator through a linear guide rail. The rotor comprises T-shaped vapor chambers, heat conduction gaskets, rotor iron cores, windings, cooling water pipes, silicon steel sheets and liquid cooling plates, the windings are arranged on rotor iron core teeth, through holes are formed in the positions, between the adjacent windings, of the iron cores up and down, the T-shaped vapor chambers are vertically and symmetrically inserted into the iron core holes, and the surfaces of the lower ends of the T-shaped vapor chambers are attached to the adjacent windings; a heat conduction gasket is laid on the upper portion of the T-shaped soaking plate and connected with a liquid cooling plate with a built-in cooling water pipe, and the condensation end of the T-shaped soaking plate, the heat conduction gasket, the cooling water pipe and the liquid cooling plate are all arranged in a silicon steel sheet groove. According to the utility model, heat in the winding and the iron core can be uniformly distributed, and the heat dissipation efficiency of the linear motor is improved.
Owner:HEFEI UNIV OF TECH +1

Heat dissipation system and method for server of Internet of Things

The invention discloses an Internet of Things server heat dissipation system and method, and relates to the technical field of server heat dissipation, and the system comprises a cooling device, a heat dissipation device, a circulation device, a server housing, and a supporting device. According to the heat dissipation device, a water-cooling rotating shaft is driven by cooling liquid to rotate anticlockwise, at the moment, the air-cooling rotating shaft is limited by an arc-shaped ring to rotate anticlockwise, the water-cooling rotating shaft drives a second friction wheel to rotate anticlockwise through a limiting block and a semicircular lantern ring, the second friction wheel drives a first friction wheel and air-cooling fan blades to rotate, and therefore the deflection angle of the air-cooling fan blades is changed; when the air cooling fan blades are parallel to the end face of the air cooling rotating disc, the cleaning assembly can automatically pop up and clean the air cooling fan blades. According to the cooling device, cooling liquid in the circulating device enters a second cooling pipe or a third cooling pipe under the action of gravity, then the cooling liquid enters the flow control cylinder, and then the flow control cylinder is combined and communicated through a first cooling pipe or a fourth cooling pipe, so that integrated control over the cooling liquid and the air cooling fan blades is achieved.
Owner:XIAN AERONAUTICAL UNIV

Intelligent building heating and ventilation automatic control method and system based on digital twinning

The invention discloses an intelligent building heating and ventilation automatic control method and system based on digital twinning, and relates to the technical field of intelligent heat supply. The method comprises the specific steps that entity data of a building and a heat supply system are obtained, a building heat supply system twinborn model is constructed, and a digital twinborn automatic control system is constructed based on the building heat supply system twinborn model; deploying a multi-modal sensing network, and constructing a distributed data monitoring system; real-time data collected by the distributed data monitoring system is input into the digital twin automatic control system, and a dynamic control strategy is generated in combination with historical data; and the heat supply system is controlled to execute actions based on the dynamic control strategy, and feedback data are sent to the digital twin automatic control system for control strategy optimization. According to the invention, the response speed of the system is obviously improved, and the adaptability to complex and changeable environments is enhanced.
Owner:Liupanshan Laboratory

Industrial computer memory and storage collaborative cooling system

The invention relates to the technical field of industrial computer heat dissipation, in particular to an industrial computer memory and storage collaborative heat dissipation system which is used for solving the problems that in the prior art, temperature distribution modeling and state evaluation cannot be achieved, thermal state categories cannot be divided by integrating a temperature threshold value and an operation state, and the equipment health judgment accuracy is reduced. According to the invention, a temperature control monitoring module constructs a thermal field model by using operation state and thermal behavior data, divides hardware units, establishes a heat conduction path, realizes temperature distribution modeling and state evaluation, calculates thermal power density through standardized parameters, and solves steady-state temperature by using a numerical method in combination with boundary conditions and a cooling model. Structured temperature information is output, a temperature threshold value and an operation state are integrated to divide thermal state categories, and the equipment health judgment accuracy is improved.
Owner:BEIJING ZHONGKE JIANYOU TECHNOLOGY CO LTD

Immersed liquid cooling device, energy storage system and thermal management method

The invention relates to the technical field of heat dissipation of energy storage systems, and discloses an immersed liquid cooling device, an energy storage system and a heat management method. The immersed liquid cooling device comprises a box body, a fluid circulation structure and a liquid level adjusting structure. The box body is provided with a plurality of liquid cooling spaces which are sequentially arranged along a preset direction and are isolated from one another, and each liquid cooling space is used for accommodating a battery module; the fluid circulation structure is connected to the box body and comprises a liquid inlet pipeline, a series flow pipeline and a liquid outlet pipeline, the liquid inlet pipeline is used for supplying cooling liquid, the series flow pipeline is used for conveying the cooling liquid, and the liquid outlet pipeline is used for discharging the cooling liquid. One of the two liquid cooling spaces farthest from each other in the preset direction is communicated with the liquid inlet pipeline, the other liquid cooling space is communicated with the liquid outlet pipeline, and the two adjacent liquid cooling spaces are communicated with each other through a series flow pipeline. According to the immersed liquid cooling device, the energy storage system and the thermal management method provided by the invention, the temperatures of different battery modules in the energy storage system can be favorably controlled.
Owner:ZHEJIANG JINKO ENERGY STORAGE CO LTD

Heat exchange device for heat supply system

The utility model relates to the technical field of heat supply, and provides a heat exchange device for a heat supply system. The heat exchange tube group is arranged in the shell; the turbulent flow assembly is rotationally arranged in the shell and located on the outer side of the heat exchange tube set; and the scraping plate is arranged on the heat exchange tube set in a sliding mode, the scraping plate is in transmission connection with the turbulent flow assembly, and when the turbulent flow assembly rotates along the inner wall of the shell, the scraping plate moves along the outer wall of the heat exchange tube set. By means of the technical scheme, the problems that in the prior art, in order to guarantee normal work of a heat exchange device, the heat exchange device needs to be completely disassembled, impurities and scale in a pipeline of the heat exchange device need to be cleaned up, the cleaning steps are tedious, and manpower and material resources are consumed are solved.
Owner:HEBEI NOAH ENERGY CO LTD

Immersed liquid cooling device, energy storage system and thermal management method

The invention relates to the technical field of heat dissipation of energy storage systems, and discloses an immersed liquid cooling device, an energy storage system and a heat management method. The immersed liquid cooling device comprises a box body, a fluid circulation structure and a liquid level adjusting structure. The box body is provided with a plurality of liquid cooling spaces which are sequentially arranged along a preset direction and are isolated from one another, and each liquid cooling space is used for accommodating a battery module; the fluid circulation structure is connected to the box body and comprises a liquid inlet pipeline, a series flow pipeline and a liquid outlet pipeline, the liquid inlet pipeline is used for supplying cooling liquid, the series flow pipeline is used for conveying the cooling liquid, and the liquid outlet pipeline is used for discharging the cooling liquid. One of the two liquid cooling spaces farthest from each other in the preset direction is communicated with the liquid inlet pipeline, the other liquid cooling space is communicated with the liquid outlet pipeline, and the two adjacent liquid cooling spaces are communicated with each other through a series flow pipeline. According to the immersed liquid cooling device, the energy storage system and the thermal management method provided by the invention, the temperatures of different battery modules in the energy storage system can be favorably controlled.
Owner:ZHEJIANG JINKO ENERGY STORAGE CO LTD

Heat supply regulation and control method based on edge cloud cooperative computing and related device

The invention discloses a heat supply regulation and control method based on side cloud cooperative computing and a related device, and relates to the technical field of comprehensive energy heat supply, real-time data is obtained and then input into a current heat supply control model, and after control parameters are obtained and sent to a local side to be executed, the indoor temperature reaches a target value of the indoor temperature. The current heat supply control model is obtained by selecting the preset modeling algorithm for training according to the characteristics of the current historical meteorological data and the current historical room temperature data stored in the cloud platform and the current historical local operation data of the local side, and the training data of the model is comprehensive compared with the training data in the prior art; the method is a prediction modeling algorithm selected based on characteristics of historical data. Therefore, the method can be used for training different heat supply systems and establishing adaptive current heat supply control models with relatively high control precision.
Owner:XINAO SHUNENG TECH CO LTD

Liquid metal enhanced heat exchange pipeline

The invention belongs to the technical field of heat exchange, and particularly relates to a liquid metal enhanced heat exchange pipeline which comprises a pipeline body, an auxiliary heat exchange cavity and liquid metal. One end of the auxiliary heat exchange cavity is arranged on the pipeline body, and the other end of the auxiliary heat exchange cavity is far away from the pipeline body; the auxiliary heat exchange cavity is filled with the liquid metal. The auxiliary heat exchange cavity is filled with the liquid metal, and compared with a traditional cooling medium, the liquid metal can transfer heat more quickly by means of the ultrahigh heat conductivity of the liquid metal, the heat resistance is reduced, and the overall heat exchange efficiency is improved. In addition, due to the high thermal conductivity of the liquid metal and the optimized heat exchange structure, efficient heat exchange can be achieved in a more compact space, and the requirement for additional cooling fins or heat exchange assemblies is reduced. And compared with a traditional heat exchanger, the heat exchange power density of unit volume is higher, the heat exchanger is suitable for high-power electronic equipment, spaceflight heat dissipation systems and new energy heat exchange equipment, and the requirements for miniaturization and efficient heat dissipation are met.
Owner:YUNNAN NORMAL UNIV

3D IC flow heat transfer testing device and method

The invention belongs to the field of flow heat transfer testing devices and the technical field of semiconductor chip and integrated circuit packaging heat dissipation, particularly relates to a flow heat transfer testing device and method for a 3DIC, and aims to solve the problem of heat management experiment testing of a 3DIC structure under the condition of high heat flux. The device comprises alternately stacked open type heating sheet slots, micro-channel modules, MCH ceramic heating sheets, interlayer communication columns, a flow distributor and a plurality of temperature measuring elements. Through a reasonably designed fluid distribution system and a precise heat conduction structure, an equivalent substitution experiment scheme of a real 3DIC is realized, the problem of small-space temperature measurement point and heat source arrangement is solved, and the problems of non-uniform flow distribution of gas-liquid two-phase flow in a variable cross-section sub-runner and the like are solved. The device has a real-time temperature monitoring capability, is suitable for thermal management research and multiphase flow pattern observation of 3DIC, and provides a scientific basis for optimization design and performance improvement.
Owner:XI AN JIAOTONG UNIV

Calculation method of plate heat exchanger

The invention relates to the technical field of plate heat exchange, in particular to a calculation method of a plate heat exchanger, which comprises the following steps: S1, converting pressure and temperature data into pressure and enthalpy values, setting boundary conditions, determining a hot side and a cold side of the heat exchanger according to the boundary conditions, and setting non-boundary values by segmentally applying energy conservation to obtain geometric parameters and empirical constants; s2, obtaining physical property parameters of the fluid by using a two-dimensional grid linear interpolation method, and obtaining the physical property parameters of the fluid by taking the enthalpy value and the pressure as coordinates; and S3, determining the effective area required by each section, and obtaining a local heat transfer coefficient and a pressure drop when the volume requirement is met under the fluid physical property parameters and the channel flow velocity. According to the method, the problem that the calculation speed of a calculation program is low when the performance of the brazing sheet heat exchanger is evaluated under different working conditions is solved through unique grid division in the plate heat exchanger and rapid calling of fluid physical properties, the calculation error value is effectively reduced, an accurate check result is obtained within ten iteration steps, and the calculation cost is saved.
Owner:SHANDONG SHENZHOU REFRIGERATION EQUIP

Green power absorption heat storage and release matching control method and system based on water heat storage boiler

The invention belongs to the technical field of intelligent heat supply, and provides a green power consumption heat storage and release matching control method and system based on a water heat storage boiler, and the method comprises the steps: firstly obtaining a heat load prediction sequence and an electric power spot market price prediction sequence of a heat supply system; secondly, regarding the heat supply network as a graph structure composed of nodes and pipelines, and establishing a pipe network dynamic model for describing the hydraulic and thermal characteristics of the heat supply pipe network; and finally, with the purpose of minimizing the comprehensive operation cost of the heat supply system in the whole scheduling period, and with the whole network heat balance, heat source operation, centralized heat storage device operation, heat supply network safety and user comfort as constraint conditions, solving to obtain a source network load storage cooperative control strategy. The purpose of integrated collaborative optimization of the heat source, the energy storage, the pipe network and the load is achieved, a scheduling strategy with better economical efficiency can be generated, and the problems that the absorption capacity is insufficient, and the overall operation economical efficiency of the system is not high are solved.
Owner:SHANDONG ELECTRIC POWER ENG CONSULTING INST CORP

Three-period extremely-small curved surface change heat exchanger for airborne intermittent high-heat-flux surface heat dissipation

The invention provides a three-period minimal curved surface change heat exchanger for airborne intermittent high-heat-flux surface heat dissipation, and belongs to the technical field of phase change heat storage. According to the technical key points, the flow channels are divided into hot fluid flow channels allowing hot fluid to pass through and preventing cold fluid from flowing and cold fluid flow channels allowing cold fluid to pass through and preventing hot fluid from flowing, and the hot fluid flow channels and the cold fluid flow channels intersect in direction and are alternately arranged to form effective heat exchange channels. A phase change material is packaged in a hot fluid flow channel by adopting a three-period extremely-small curved surface structure, and the structure is used as a primary heat exchange surface, so that rapid heat exchange between the phase change material and hot fluid is promoted, and the heat storage rate is increased; cooperative disturbance structures matched with the three-period extremely-small curved surfaces are arranged in the cold fluid flow channels, heat exchange between the phase-change materials and the cold fluid is further promoted, and the heat dissipation rate is increased. The device has the advantages of being compact in structure and high in heat storage / release rate, and the requirements of high-power equipment in the instantaneous heat storage and dissipation process are effectively met.
Owner:DALIAN UNIV OF TECH

Fabricated heat preservation and insulation suspended ceiling system and mounting method thereof

The invention relates to the technical field of heat preservation and insulation, in particular to a fabricated heat preservation and insulation suspended ceiling system and a mounting method thereof. An assembly type heat preservation and insulation suspended ceiling system comprises a transverse suspended ceiling mechanism, a longitudinal suspended ceiling mechanism, a temperature control assembly and a ceiling assembly. The transverse ceiling mechanism is used for determining the installation positions of the ceiling assemblies, the longitudinal ceiling mechanism is used for driving the ceiling assemblies to rotate, when the ceiling assemblies rotate to the horizontal state, sealing connection is formed between the adjacent ceiling assemblies, and when the ceiling assemblies rotate to the inclined state, an open gap is formed between the adjacent ceiling assemblies. According to the ceiling system, the consistency of displaying of the ceiling system to people is guaranteed, and therefore the attractiveness of the ceiling system is improved; in addition, the gaps are distributed in the top of the whole indoor space, so that the temperature regulation and control speed of the indoor space can be increased; and meanwhile, after the indoor temperature is adjusted, temperature loss can be prevented by closing the gap, so that the energy-saving effect is improved.
Owner:JIANGSU SHIJIAN CONSTR ENG CO LTD