220 results about "Latent heat" patented technology

The invention relates to an AI-driven intelligent design and preparation method of an inorganic hydrated salt phase change material, and solves the problem that the traditional technology is mainly based on experience trial and error and single performance optimization and cannot give consideration to multi-performance balance and multi-scene efficient adaptation development requirements of the inorganic hydrated salt phase change material. The method comprises the following steps: acquiring multi-dimensional performance requirements (including phase change temperature, latent heat value and the like) of a material, generating a candidate formula and a prediction result by using a trained Gaussian process regression model, and performing multi-objective optimization to screen out a Pareto optimal formula; and carrying out experimental verification and calculating deviation, retraining the model by complementary data exceeding a threshold value, and determining a final formula after reaching the standard so as to be matched with continuous process large-scale preparation. The method has the advantages that the AI replaces experience trial and error, multi-performance cooperation of materials is achieved, the research and development period is greatly shortened, the cost is reduced, and the method is suitable for multiple energy storage scenes.

The invention discloses a total primary productivity estimation method and system based on multi-model coupling deep learning, and the method comprises the steps: obtaining the multi-source data of meteorological data, remote sensing images, latent heat flux, sensible heat flux and solar radiation, carrying out the quality control, missing value processing and nearest neighbor interpolation of different data sources, and carrying out the prediction of the total primary productivity. Unifying to a target spatial resolution and a time resolution; in a light energy utilization rate (LUE) model family, a solar radiation phase factor is introduced into a photosynthetically active radiation absorption ratio (FPAR) to obtain a phase modulation type FPAR, drought duration is introduced into a water stress function f (W) to obtain an exponential decay type f (W), and a GPP time sequence of a plurality of improved mechanism models is calculated according to the exponential decay type f (W); extracting spatial texture features from a remote sensing image stack by using a convolutional neural network (CNN), and performing cross-modal fusion on the spatial features and the GPP estimated by the plurality of improved mechanism models in a gating mode to form fusion representation; carrying out learning and collaborative optimization on the fusion representation of the GPP and CNN spatial features estimated by the plurality of improved mechanism models by adopting a gradient lifting tree model; and high-precision estimation of the GPP is realized through multi-model collaborative optimization. The method aims at solving the problem that a traditional light energy utilization rate model is insufficient in response under the extreme environment conditions of drought and intense radiation, the adaptability limitation of a traditional single model under the complex environment is broken through, and therefore high-precision GPP estimation under the complex environment is achieved.

The invention relates to the technical field of molten salt, in particular to nitro binary molten salt and a preparation method thereof. The preparation method comprises the following steps: mixing sodium carbonate and a potassium hydroxide solution, and then adding a starch-based grafted crystal inhibitor to inhibit crystallization; adding a nitric acid aqueous solution in two stages, and introducing eutectic seed crystals to guide nucleation at the end of the first stage; crystal distribution is optimized through falling film evaporation and concentration and setting of partial reflux; and after spraying granulation, carrying out short-time melting reforming and controlled cooling in an inert atmosphere. According to the method, the composition uniformity and the structural stability of the molten salt are remarkably improved, so that the product has a melting point close to a theoretical eutectic point, low supercooling degree, high melting latent heat and excellent thermal cycling stability and corrosion resistance, and is suitable for an industrial heat storage system running for a long time.

The invention relates to the technical field of marine ecological engineering, in particular to a marine coral reef ecological restoration method based on a foamed aluminum base material, which comprises the following steps: preparing a modified foamed aluminum main body structure, constructing a modified bioactive surface layer, filling a modified phase change material capsule, and putting a restoration unit. According to the invention, the foamed aluminum main body structure provides a stable three-dimensional through porous network, and a natural reef habitat environment is simulated; a hydroxyapatite coating or a polymer layer constructed on the surface of the coral bone-imitating material remarkably improves the coral larva attachment and colonization efficiency through coral bone-imitating inorganic components or specific polypeptides respectively; the phase-change material capsules filled inside buffer water temperature fluctuation through phase-change latent heat, a stable micro-thermal environment is provided for coral growth, the functions of all the components are complementary and synergistic, foamed aluminum provides a carrier for surface functionalization, the surface active layer optimizes a biological interface, the internal temperature adjusting unit guarantees ecological suitability, and an efficient repairing system is formed. The coral reef ecological restoration effect is obviously improved.

The invention discloses a compressed air energy storage underground cavern temperature adjusting structure and a manufacturing method thereof, and belongs to the technical field of compressed air energy storage, the temperature adjusting structure is sequentially provided with a flexible sealing layer, a phase change temperature adjusting layer and an optical fiber sensing layer from inside to outside, the optical fiber sensing layer is connected with the inner wall of a concrete lining, and the phase change temperature adjusting layer is used for stabilizing temperature fluctuation in a cavern; the optical fiber sensing layer is used for monitoring temperature and a strain field in real time and is electrically connected with an external fiber grating sensor grid monitoring system through a sensor lead. According to the method, latent heat can be absorbed or released through the phase change process, temperature fluctuation in the cavern can be effectively stabilized, material fatigue and structural damage caused by thermal stress circulation are reduced, real-time monitoring of the temperature and strain of the sealing layer is achieved, and the sensing capacity and the early warning level of the operation state of the cavern are improved.

The invention relates to the technical field of adhesives, discloses an adhesive composition with an extreme environment-resistant photo-thermal dual-curing structure, and solves the problems that in the existing photo-thermal dual-curing technology, a photo-curing network formed in the early stage has physical limitation on a later-stage thermal curing reaction due to the curing time sequence difference of first light and then heat, and the service life of the photo-thermal dual-curing structure is prolonged. According to the method, a latent heat curing agent is coated in a photolysis microcapsule, and a latent heat release agent of which the decomposition temperature is lower than the activation temperature of the curing agent is blended in a wall material of the microcapsule. Therefore, the problems of physical limitation and internal stress concentration caused by a previous photocuring network to a later thermocuring reaction in a traditional photo-thermal dual-curing adhesive are solved, and the long-term reliability of bonding is improved.

The invention relates to the technical field of silo temperature and humidity monitoring, in particular to an intelligent monitoring, regulating and controlling method and system for the temperature and humidity in a silo, and the method comprises the steps: constructing a space coordinate system, and determining the position coordinates of each temperature and humidity sensor in a three-dimensional space; taking each temperature and humidity sensor as a node, and constructing a three-dimensional dynamic topological graph based on spatial correlation parameters of adjacent nodes; constructing a space-time joint feature set to form a comprehensive feature vector; and inputting the comprehensive feature vector into an abnormal heat source prediction model, and outputting a heat source abnormality judgment result of the center node. According to the invention, by constructing the three-dimensional space coordinate system of the temperature and humidity in the silo and combining the dynamic data processing and intelligent anomaly identification mechanism of the multi-point distributed temperature and humidity sensor, the problems of large temperature sampling spacing and delayed local thermal anomaly response in the prior art are solved; and early recognition and targeted regulation and control of the local latent heat source in the silo are realized.

The invention discloses a contribution decomposition calculation method for lake expansion. The contribution decomposition calculation method comprises the following steps: extracting a lake area through a remote sensing image and a digital elevation model, inverting water volume change, judging a rainfall phase state by using a temperature threshold method, estimating ice and snow ablation amount in combination with a degree-day factor method, and calculating a glacier runoff total amount; constructing a single-layer evaporation model, calculating flux of net radiation, sensible heat, latent heat, water body heat storage and the like based on a lake surface energy balance equation, and obtaining daily lake surface evaporation capacity; quantile mapping and Bayesian fusion are combined, and lake surface rainfall is corrected; non-glacial runoff is calculated according to a lake water balance equation; dividing a stable period and an expansion period according to the lake area trend, calculating an abnormal value of the expansion period by taking the hydrological mean value of the stable period as a reference, and finally determining the expansion contribution of each hydrological factor according to the increment proportion of the abnormal value in the total water quantity. Through the method, the contribution intensity of different driving factors is determined, scientific support is provided for lake change simulation and evolution prediction, and ecological protection and management strategies are more targeted.

The invention discloses a low-temperature phase change energy storage material and a preparation method thereof, and relates to the technical field of cold storage materials. The provided organic phase-change material is formed by jointly matching alkane and fatty alcohol, the melting temperature of the organic phase-change material is 0-10 DEG C, the crystallization temperature is-5-5 DEG C, and the melting temperature and the crystallization temperature can be adjusted according to requirements. The material has high latent heat of phase change, and can be efficiently used in scenes of cold chain transportation, refrigeration house energy conservation and the like. The material is non-toxic and harmless, has stable cycle performance, and effectively overcomes the defects of poor cycle performance, easy phase separation, large supercooling degree and the like of an inorganic material. The material is applied to cold storage energy conservation or cold chain transportation, and the effects of energy conservation, environmental protection and electric charge saving can be achieved by utilizing the valley electricity energy storage principle.

The application discloses a lake expansion contribution decomposition calculation method, extracts lake area and reverses water quantity change through remote sensing image and digital elevation model, discriminates precipitation phase state by using a temperature threshold method, estimates ice and snow ablation amount by combining a degree-day factor method, and calculates total glacier runoff; a single-layer evaporation model is constructed, net radiation, sensible heat, latent heat and water body heat storage and other fluxes are calculated based on a lake surface energy balance equation, and daily lake surface evaporation is obtained; quantile mapping and Bayesian fusion are combined to correct lake surface precipitation; non-glacier runoff is calculated according to a lake water balance equation; the stable period and the expansion period are divided according to the lake area trend, the stable period hydrological mean value is taken as a benchmark to calculate the expansion period abnormal value, and finally, the expansion contribution of each hydrological factor is determined according to the proportion of the abnormal value in the total water quantity increment. Through the method, the contribution intensity of different driving factors is clear, scientific support is provided for simulating lake change and predicting evolution, and ecological protection and management strategies are more targeted.

The invention discloses a multi-axis servo regulation and control liquid ammonia burner based on smoke backflow liquid ammonia vaporization and a control method, and relates to the field of clean energy equipment, the multi-axis servo regulation and control liquid ammonia burner comprises a liquid ammonia burner body, an annular liquid ammonia flow servo regulation mechanism, an annular liquid ammonia conveying and distributing mechanism, a liquid ammonia plasma ignition device, an ammonia combustion flame scanning mechanism and the like. The multi-axis servo motor drives the execution valves to adjust the flow ratio of liquid ammonia fuel to hot air in the fluid channels, meanwhile, liquid ammonia is vaporized through heat exchange of backflow smoke in the boiler and then fully premixed with the hot air to enter the boiler to be combusted, and efficient combustion of the ammonia fuel of the coal-fired boiler is achieved. The technical problems of large latent heat of vaporization of liquid ammonia fuel, continuous clean combustion of ammonia fuel, ammonia escape and control of NOX generated by combustion are solved.

The invention provides a method and a device for calculating a freezing process when a supercooled liquid drop impacts an ice surface, and belongs to the technical field of ice prevention and deicing, and the method comprises the following steps: obtaining an initial parameter of the supercooled liquid drop; calculating the first temporary speed, temperature and enthalpy value according to an MPS method; the phase state of the supercooled liquid drops is determined according to the relation between the enthalpy value and the latent heat; a dissipation factor is calculated according to the distance from the liquid-phase supercooled liquid drop to the nearest ice-phase supercooled liquid drop and the enthalpy value of the liquid-phase supercooled liquid drop, and a momentum dissipation source item is determined based on the dissipation factor; adding a second temporary step between the temporary step and the correction step of the MPS method, and implicitly calculating a second temporary speed; replacing the first temporary speed with a second temporary speed, performing pressure Poisson equation solution according to an MPS method, calculating a correction speed based on the pressure gradient, and obtaining the actual speed of the supercooled liquid drop based on the correction speed and the second temporary speed; and updating the space coordinate of the supercooled liquid drop based on the actual speed of the time step, wherein the space coordinate of the supercooled liquid drop is used for reflecting the ice type change.

This invention relates to the field of image sensing data processing and discloses a method for diagnosing the thermal environment of blue-green spaces in cold-region cities based on multispectral remote sensing. The method includes the following steps: acquiring multispectral remote sensing images, three-dimensional building elevations, and solar apparent shape parameters; calculating the illumination shading coefficient of blue-green space pixels to form a three-dimensional dynamic shadow mask; constructing a microscopic phase transition evolution operator using the sensitivity gradient of radiation intensity in different polarization directions and mid-infrared reflectivity; inputting the mask and operator into the thermal infrared radiation measurement equation to reconstruct the dynamic surface temperature; solving the surface energy balance equation based on the dynamic surface temperature, separating the latent heat storage of phase transition energy, and constructing a latent heat buffer index; and performing a comprehensive diagnosis of the thermal environment health based on this index. This invention effectively overcomes the temperature measurement errors caused by complex shading and phase state interweaving, accurately isolates the latent heat energy of phase transition, and achieves precise positioning and objective quantitative diagnosis of microclimate anomalies in cold-region cities.

The invention discloses a method, a system, equipment, a medium and a product for determining the state of a tower leg of a power transmission tower in a severe cold area, and relates to the field of tower leg freezing damage calculation, the method comprises the following steps: determining a water layer transient temperature field of the tower leg of the power transmission tower based on a finite element simulation mode according to a heat conduction differential equation and boundary conditions of a water layer; based on a finite element simulation mode, treating phase change latent heat of the water-ice phase change interface by adopting an apparent heat capacity method, and determining a phase change result; the phase change result is icing thickness; according to the tower leg structure parameters, the tower leg steel yield strength is determined; based on the transient temperature field of the water layer, the extrusion pressure intensity of ice on the tower legs is determined in combination with the icing thickness; according to the tower leg structure parameters, the icing thickness and the extrusion pressure intensity, tower leg combined stress is determined; determining the state of the tower leg according to the combined stress of the tower leg and the yield strength of tower leg steel; the tower leg state comprises a freezing damage risk state and a safety state. The method can quickly identify the freezing damage condition of the tower leg.

The invention discloses an opencast coal mine coal spontaneous combustion incubation period prediction method suitable for a negative temperature condition, and relates to the technical field of coal spontaneous combustion prediction. The method comprises the following steps: firstly, carrying out an oxygen adsorption dynamic experiment on a to-be-detected coal sample at a constant temperature of-20 to 100 DEG C to obtain a low-temperature oxygen adsorption rate constant and establishing a function relationship between the low-temperature oxygen adsorption rate constant and the temperature; secondly, calculating ice melting latent heat according to the ice content in the coal sample to be detected, and introducing the ice melting latent heat as a key energy loss item into the heat-mass transfer model of the coal pile; further, establishing a coal pile energy balance equation comprehensively considering oxidation heat release, ice melting latent heat consumption and a heat dissipation process; and finally, solving the equation through a numerical method, and calculating the time required by the coal pile from the initial negative temperature rise to the critical spontaneous combustion temperature so as to obtain the accurate coal spontaneous combustion latency. The method is particularly suitable for mines in cold regions, surface mines and winter coal storage yards.

A flow containing iodine (I2) vapor and at least one of an inert gas and water vapor. One method for recovering iodine (I2) is to bring the flow into contact with an alkaline solution to form an iodide salt. To achieve, to bring the flow into contact with the adsorbent and selectively adsorb water from the flow, to concentrate the flow By contacting it with an acid, water vapor is absorbed from the flow, or iodine (I2) vapor is back sublimated or Condensing to form solid or liquid iodine (I2), or bringing the flow into contact with the material Furthermore, among the absorption of latent heat and sensible heat by a material through its phase change, When performing at least one of the following, iodine (I2) vapor is condensed or backsublimated from the flow. It can include the following:

This application relates to the field of road engineering materials technology, and discloses a method for preparing modified phosphogypsum base material for road engineering, comprising the following steps: mixing aged phosphogypsum with ferrous sulfate heptahydrate, sodium fluorosilicate, and manganese sulfate monohydrate, utilizing the inherent moisture of the phosphogypsum to dissolve the salts and form an acidic slurry; adding heat-curing dry powder and high-speed shearing, utilizing the heat of hydration to raise the temperature to 65℃-85℃ to create a high-temperature strong alkaline environment, initiating manganese catalytic oxidation and slag thermal etching; subsequently, high-pressure injection of a rapid cooling conditioning liquid, utilizing the latent heat of vaporization to rapidly cool to below 45℃ to complete rapid cooling quenching and slow setting locking; unloading and aging to obtain the modified phosphogypsum base material. This invention, through the release of chemical energy by quicklime hydration to construct a high-temperature strong alkaline reaction field, achieves deep mineralization of impurities and reconstruction of the cementitious material network, significantly improving the water stability and mechanical properties of the base material.

The invention relates to the technical field of artificial intelligence, and discloses a method for adaptively adjusting the ratio of an improver based on an AI (artificial intelligence) algorithm, according to the method, multi-field parameters are obtained by using a composite material micro pile embedded with a sensing array, and the evolution trend of a stratum is predicted through a heat-water-force multi-field coupling evolution model. And an artificial intelligence algorithm calculates a modifying agent proportion vector changing along with depth according to a prediction result, and drives a grouting system to adjust the concentration of the active component. And the physical boundary of the micro pile group is utilized to guide a flow field to form a transverse overlapping reinforcing belt. The phase change component in the modifier releases latent heat at a preset temperature, and intervenes in formation heat balance in cooperation with physical heat barrier of the micro piles. And the system executes parameter inversion through measured data and updates an algorithm weight. According to the method, accurate matching of the treatment scheme and stratum heterogeneity is achieved, frost heaving deformation of the foundation is effectively restrained, and the structural stability of the high and cold large-thickness foundation is guaranteed.

The utility model relates to a heat absorber. Provided is a technique capable of efficiently absorbing heat from a heat source. A heat-absorbing body for absorbing heat from a heat-generating source is provided with: a first heat-conducting part attached to the surface of the heat-generating source, the first heat-conducting part being formed from a phase-change material having a first heat conductivity and a first latent heat; and a second heat conduction part attached to the surface of the first heat conduction part on the opposite side from the heat generation source, the second heat conduction part being formed of a phase change material having a second heat conductivity lower than the first heat conductivity and a second latent heat greater than the first latent heat.

The application discloses a high-flux heat exchange device based on a thermo-chemical reaction auxiliary, which comprises a heat exchange chamber and a chemical phase change working medium. The chemical phase change working medium comprises a liquid cooling base fluid and a reversible thermal decomposition solute. The thermal decomposition temperature threshold of the reversible thermal decomposition solute is lower than the physical boiling point of the liquid cooling base fluid under the current environment. When the temperature or pressure of the heat exchange surface reaches the thermal decomposition temperature threshold, the reversible thermal decomposition solute undergoes an endothermic decomposition reaction on the heat exchange surface, rapidly generates a large number of non-condensable bubbles and high-frequency separates, thereby triggering strong local micro-convection disturbance of the fluid and absorbing a large amount of chemical decomposition heat, and finally achieving heat dissipation of the heating element. The application accelerates the transfer of wall heat by using a thermo-chemical reaction, and improves the separation rate of bubbles at the solid-liquid interface, breaks the engineering resistance that bubbles are difficult to nucleate and efficiently separate in traditional boiling heat transfer, and realizes rapid and large absorption and transfer of the combined chemical reaction heat of the solute and the latent heat of vaporization of the base fluid.

This invention discloses a liquid-cooled collaborative intelligent temperature control method and system based on layered PCM, relating to the field of liquid-cooled temperature control technology. The method includes: S1, real-time acquisition of liquid-cooled temperature control data and preprocessing of the data; S2, calculation of the sensible and latent heat absorption of the outer and inner PCM layers, assessment of the risk of thermal imbalance on the conductor surface, determination of the current thermal state, and output of a thermal risk warning signal; S3, assessment of the degree to which cable bending weakens thermal coupling performance, triggering a layered PCM collaborative temperature control strategy, and execution of graded control commands for the power pump, circulation pump, and three-way valve; S4, assessment of the deviation between the current heat exchange capacity and the heat load demand, correction of the cooling response coefficient, and optimization of the PCM collaborative temperature control strategy. This solves the problems of unstable thermal coupling between the coolant pipe and the heating conductor in existing liquid-cooled cables, and the tendency for pipe deformation and contact thermal resistance and localized hot spots to occur with frequent bending.

The application provides a water source heat pump heating system, which comprises a water source heat pump unit, an ice source heat pump unit and an ice crystal generating device. The water source heat pump unit is connected with a water source and is used for heat exchange with the water source. The ice source heat pump unit is used for heat exchange with the cold water from the water source heat pump unit to form supercooled water. The ice crystal generating device is used for removing the supercooling of the supercooled water to form an ice-water mixture. The ice-water separation device is used for separating the ice-water mixture into solid ice crystals and liquid water and is provided with a water outlet connected with the cold end inlet of the ice source heat pump unit. Firstly, the water source heat pump extracts the sensible heat of the water source to provide heat. Secondly, the ice source heat pump is used to cool the water to form supercooled water to further extract the heat of the water source. Then, the supercooled water is removed from the supercooling to form an ice crystal and water mixture. The liquid water is returned to the ice source heat pump for heat exchange to realize the utilization of the latent heat of the water source. Thus, the sensible heat and the latent heat of the water can be efficiently utilized while the heat supply is stable, the water can be used in the form of ice, the water consumption of the conventional water source heat pump is greatly reduced, and the waste of resources is reduced.

A high speed gear box including ribs, gears with holes, and oil channels configured to divide and distribute lubricating oil and contacting the lubricating oil with a high speed gear box housing wall. The high speed gear box housing and gear box cover have lubricating oil channel which supply lubricants to bearings. Output gears have holes which circulate oil throughout the high speed gear box. As lubricating oil is continuously circulated at locations which may create friction, the thermal energy, which is generated by high speed rotation of gears, shafts, and bearings is absorbed by cooling oil and transferred to housings, latent heat is dissipated to atmosphere through housing wall. This solves the overheating problem of electric high speed gear box.

The invention discloses a fused salt coupling heat storage and release system and method integrated to a thermal power generating unit, the thermal power generating unit comprises a boiler and a steam turbine, and the system comprises a fused salt heat storage subsystem configured to absorb and store sensible heat of main steam and reheat steam of the boiler when the unit stores heat; the water storage tank heat storage subsystem is configured to absorb and store latent heat of reheated steam when the unit stores heat; and the heat source side of the steam generation subsystem is connected to the fused salt heat storage subsystem, and the steam generation subsystem is configured to generate steam through heat stored by fused salt and convey the steam to an inlet of the steam turbine intermediate pressure cylinder when the unit releases heat so as to improve the power of the unit. The molten salt is used for storing sensible heat of main steam and hot reheat steam, the water storage tank is used for storing latent heat of reheat steam, cascade heat storage is achieved, steam-water working media circulate in the boiler and the heat storage system in the heat storage process and are prevented from entering a steam turbine condenser, cold end loss is reduced, and heat storage efficiency is improved.

The invention relates to the technical field of building materials, and particularly discloses a carbon-based ceramic tile back adhesive and a preparation method thereof. The carbon-based ceramic tile gum is prepared from the following raw materials in parts by weight: 90 to 110 parts of organic silicon modified epoxy resin, 10 to 20 parts of reactive diluent, 25 to 45 parts of composite functional filler, 1 to 3 parts of coupling agent, 0.5 to 1.5 parts of defoaming agent, 0.3 to 0.8 part of thixotropic agent, 40 to 60 parts of cardanol modified amine curing agent and 2 to 5 parts of accelerant, and the composite functional filler is a microcapsule with a core-shell structure. The organosilicon modified epoxy resin and the cardanol modified amine curing agent form a cross-linking system, the composite functional filler with the core-shell structure is adopted, phase change is generated to absorb or release latent heat when the temperature changes, the temperature gradient in the adhesive layer is stabilized, and thermal stress accumulation is reduced, so that through the synergistic effect of phase change energy storage and interface enhancement, the thermal stress performance of the adhesive layer is improved. Thermal stress damage is effectively buffered, and interface cracking and hollowing are avoided.

A system is provided for use with a subject suffering from cancer that includes one or more primary or metastatic solid tumors. The system includes nanoparticles including a magnetic metallic core and a phase-change material (PCM) that surrounds the magnetic metallic core and is configured to absorb latent heat of fusion by undergoing a phase change that occurs at a phase-change temperature of 42-80 degrees C. A radiofrequency (RF) transmitter is configured to transmit energy, in a pulse train alternating between high power and low power at a pulse frequency of 1 Hz-5 Hz, to at least a portion of the subject's body, such so that the nanoparticles are heated to the phase-change temperature of the PCM, and store energy from the pulse train in the PCM as latent heat of fusion. Other embodiments are also described.

The application provides a dual-fuel engine starting method, device, storage medium and system, the engine comprising: a methanol injector and a diesel injector, the methanol injector being installed to an air inlet pipe of the engine, and the diesel injector being installed to a cylinder cover of a cylinder of the engine, the method comprising: receiving and responding to an engine starting instruction, acquiring a plurality of temperature parameters, and determining a minimum temperature parameter in all the temperature parameters; when the minimum temperature parameter is less than a preset temperature, controlling the diesel injector to inject a preset first injection amount of diesel into the engine cylinder; determining a speed change rate of a process in which an engine speed changes from static to a first preset speed, and determining a second injection amount of diesel and a third injection amount of methanol according to the speed change rate and simultaneously controlling the diesel injector and the methanol injector to inject, so as to start the engine. The application solves the problem that methanol fuel has low vapor pressure and large latent heat, and thus it is difficult to start the engine at low temperature.

The invention discloses an intelligent microbial incubator with a constant-temperature humidity-adjusting structure, and relates to the field of biological incubators, the intelligent microbial incubator specifically comprises a constant-temperature humidity-adjusting incubator body and a culture cavity formed in the constant-temperature humidity-adjusting incubator body, the side wall of the constant-temperature humidity-adjusting incubator body is provided with a plurality of pairs of mounting sliding rails, and each pair of mounting sliding rails is slidably provided with a culture tray; a temperature buffering assembly for buffering temperature change in advance is arranged on the side wall of the constant-temperature humidity-adjusting incubator body; through the innovative design of the temperature buffer assembly and the utilization of latent heat absorption and release characteristics of the phase change material, the temperature stability of a culture environment is remarkably improved, the problem of temperature overshoot is effectively avoided, and a more stable and suitable growth environment is provided for microorganisms; meanwhile, the convenient phase change material dismounting mechanism and the design of extruding and fixing the culture tray are adopted, so that the operation process is simplified, the maintenance cost is reduced, the stability of the culture tray is ensured, and the overall performance and practicability of the equipment are further improved.

Disclosed in the present invention is a method for studying the interannual variability of marine heatwaves in the Southern Indian Ocean. The method includes: on the basis of acquired data, exploring the spatial distribution characteristics and linear variation trend characteristics of marine heatwaves in the Southern Indian Ocean; analyzing the relationship between the intensity of marine heatwaves in the Southern Indian Ocean and an El Niño-Southern Oscillation (ENSO) process; analyzing the spatial evolution of marine heatwaves and sea surface temperature anomalies in the Southern Indian Ocean during El Niño events; analyzing the energy contributions of the ocean and atmosphere to marine heatwave events during El Niño events, and exploring the physical mechanism of marine heatwaves in the Southern Indian Ocean; and determining whether marine heatwaves in the Southern Indian Ocean are affected by shortwave radiation and latent heat modulated by the ENSO process. The present invention discovers that during El Niño events, within a study area, low cloud cover decreases while high cloud cover increases, the mixed-layer depth reduces, and shortwave radiation penetrates the sea surface; moreover, northwesterly winds anomalously intensify while climatological southeasterly winds are suppressed, thereby reducing evaporation, decreasing latent heat energy loss, and thus promoting warming.

The invention discloses a chloroform / ethanol / water system extraction variable-pressure rectification process for comprehensive utilization of latent and sensible heat, which realizes efficient and comprehensive utilization of energy through three-tower operation of an extraction reduced-pressure rectification tower T1, an extraction rectification tower T2 and a solvent recovery reduced-pressure rectification tower T3. The tower top steam of the extractive distillation tower T2 is used for heating the tower bottom liquid of the extractive decompression distillation tower T1 to vaporize the tower bottom liquid, and meanwhile, the tower top steam of the solvent recovery decompression distillation tower T3 is used for carrying out heat exchange on part of the liquid phase of the middle plate of the extractive decompression distillation tower T1; the problem that the tower top temperature of the solvent recovery vacuum distillation tower T3 is between the tower top temperature of the extraction vacuum distillation tower T1 and the tower kettle temperature, and traditional heat integration cannot be achieved is solved, and latent heat utilization is achieved. In addition, the tower kettle liquid of the solvent recovery vacuum distillation tower T3 is used for heating the tower kettle liquid of the extraction distillation tower T2 and the extraction vacuum distillation tower T1, and sensible heat utilization is achieved. According to the process, heat energy is fully utilized, energy consumption is reduced, the purity and yield of chloroform, ethanol and water are improved, and the equipment cost is reduced. And the adopted extracting agent is small in dosage, relatively weak in volatility, small in loss, easy to recover and environment-friendly.