19 results about "Endothermic process" patented technology

The invention discloses a preparation method of high-performance cordierite DPF honeycomb ceramic, and belongs to the technical field of honeycomb ceramic carrier preparation. The preparation method comprises the following steps: mixing raw materials; kneading mud; performing extrusion molding; drying and shaping; cutting and firing to obtain a cordierite honeycomb ceramic carrier; and performing boundary dimension processing, film covering, hole dotting, mud scraping and drying to obtain a finished product. According to the invention, aluminum hydroxide is adopted to replace or partially replace aluminum oxide in the formula of the cordierite porous ceramic structure while magnesium hydroxide is used, and the two substances can form a synergistic heat absorption mechanism by virtue of the difference of the aluminum hydroxide and magnesium hydroxide in thermal decomposition temperature, so that the heat absorption efficiency of the cordierite porous ceramic structure is greatly improved in the low-temperature coke discharge stage of a carrier mud blank. Aluminum hydroxide is subjected to a decomposition reaction before magnesium hydroxide, and then magnesium hydroxide is continuously decomposed at a higher temperature, so that the temperature range covered by the whole heat absorption process is greatly widened, the heating rate of the carrier mud blank is effectively slowed down, and thermal shock caused by sudden rising of local temperature is avoided.

To provide an air conditioning system that can be miniaturized and improve energy consumption efficiency. [Solution] The elastic heat-absorbing and heat-generating section has a heat-absorbing and heat-generating material that absorbs or generates heat by undergoing a phase change in response to the application and release of stress. The heat-conducting section that conducts heat from the heat-absorbing and heat-generating section has an extension that extends from a housing section that houses the heat-absorbing and heat-generating section and the heat-conducting section. The extension that extends from the housing section is arranged in the medium flow path through which the medium to be heat-exchanged by the heat exchanger flows, and performs heat exchange with the medium. The medium flow path comprises a cold air flow path through which the medium is cooled by the heat-absorbing device absorbing heat, and a hot air flow path through which the medium is heated by the heat-generating device. The air conditioning device further includes a drive mechanism that alternately moves the extension between the cold air flow path and the hot air flow path. When the reaction rate of the heat-absorbing and heat-generating material during heat generation is slower than the reaction rate during heat absorption, the extension is kept in the hot air flow path for a longer time, and when it is slower, it is kept in the cold air flow path for a longer time.

The utility model discloses a circulating cooling water waste heat recycling device which comprises a condenser, an air inlet of the condenser is connected with an air inlet pipeline, a water outlet of the condenser is connected with a liquid inlet of a heat pump through a liquid outlet pipeline, and the liquid outlet of the heat pump is connected with the right side of the upper portion of a heat preservation shell through a first connecting pipeline. A spiral connecting pipe is arranged in the heat preservation shell, a heating pipeline is arranged in the heat preservation shell in a penetrating mode, the spiral connecting pipe is wound on the heating pipeline, and the left side of the lower portion of the heat preservation shell is connected with one end of a circulating pump through a second connecting pipeline. The other end of the circulating pump is connected with a circulating opening of the condenser through a third connecting pipeline. The heat preservation performance of the whole heat absorption process is guaranteed, heat is prevented from being lost in the conveying process, and the heat absorption efficiency is improved.

The application provides an aerosol generating article, comprising a substrate and an aerosol generating medium. The aerosol generating medium is arranged on one side of the substrate and comprises a first aerosol generating medium and a second aerosol generating medium. At a first temperature, the first aerosol generating medium and the second aerosol generating medium are both in a first state, and the first state is a solid state. At a second temperature, the first aerosol generating medium remains in the first state, and the second aerosol generating medium changes to a second state. The change of the second aerosol generating medium from the first state to the second state is an endothermic process. Specifically, by arranging the aerosol generating medium to comprise the first aerosol generating medium and the second aerosol generating medium, and by arranging the second aerosol generating medium to change from the first state to the second state through endothermic process at the second temperature, the temperature of the first aerosol generating medium can be maintained stable, the difficulty of temperature control technology can be reduced, and uniform heating of the aerosol generating medium can be achieved.

The invention relates to a system (1) of thermally coupled processes, wherein the system (1) has: at least one heat-emitting process device (P1) which is designed to carry out a technical process and thereby emit waste heat at a temperature T1; at least one heat-absorbing process device (P2) which is designed to carry out a technical process and thereby absorb heat at a temperature T2 which is higher than T1; a heat pump (10) which is designed to increase the waste heat of the heat-emitting process device (P1) from T1 to T2; and a T1 store (20), which is a thermal store, arranged between the heat-emitting process device (P1) and the heat pump (10) and designed to store the waste heat of the heat-emitting process device (P1), preferably at the temperature T1, and / or a T2 store (30), which is a thermal store, arranged between the heat pump (10) and the heat-absorbing process device (P2) and designed to store the heat to be absorbed by the heat-absorbing process device (P2), preferably at the temperature T2.

The application discloses a kind of liquid hydrogen heavy truck heat management system heat management method, device, comprising: detecting the real-time temperature of target equipment in liquid hydrogen heavy truck heat management system, wherein target equipment at least includes one of the following: hydrogen fuel engine, cab heater core, power battery;When the real-time temperature of target equipment meets preset temperature condition, the cooling liquid circulation flow path in liquid hydrogen heavy truck heat management system is adjusted to control liquid hydrogen heavy truck heat management system to enter corresponding heat management mode.The application utilizes hydrogen fuel engine waste heat by adjusting multiple control valves, can meet the heating of power battery and the heating demand of cab;By setting up cold recovery branch, liquid hydrogen in liquid hydrogen vaporization device is quickly vaporized, and the cooling of cooling liquid itself is also accelerated by using vaporization endothermic process, thereby reducing the heat dissipation load of engine heat dissipation module, reducing the energy consumption of whole vehicle, improving economy.

The invention relates to the technical field of CO2 heat pump steam generators, in particular to a multi-stage flash steam generation system based on a CO2 transcritical heat pump, which comprises a CO2 transcritical heat pump with a plurality of heat exchangers which are sequentially connected in series, and each stage of heat exchanger is connected with a flash steam generation circulation system. Working medium water of the flash steam generation circulating system exchanges heat with a high-temperature CO2 working medium generated by the CO2 transcritical heat pump through the heat exchanger to be heated, the heated working medium water enters the flash tank to be subjected to flash evaporation to form steam and water with the temperature and the pressure reduced, and the working medium water with the temperature and the pressure reduced returns to the heat exchanger to be subjected to heat exchange after being pressurized through the booster water pump. Irreversible loss caused by single-stage flash evaporation is effectively reduced, working medium water is subjected to phase change in sequence under different pressures, the average temperature of water in the whole heat absorption process is increased, the heat exchange temperature difference between water and CO2 is reduced, CO2 thermodynamic characteristics are gradually matched, # imgabs0 # loss caused by large heat exchange temperature difference is reduced, and the overall performance of the system is improved.

The invention discloses a double-pump thermochemical energy storage heat supply system and method. The double-pump thermochemical energy storage heat supply system comprises a water storage tank, an electric heater, a thermochemical reactor, a heat exchanger, a second water pump and an ejector. An outlet of the water storage tank is divided into three paths, the first path is communicated with a shell side inlet of the thermochemical reactor through the electric heater, the second path is communicated with a pipe side inlet of the thermochemical reactor, a pipe side outlet of the thermochemical reactor is communicated with an inlet of the heat exchanger, and the third path is communicated with an inlet of the heat exchanger. An outlet of the heat exchanger is communicated with an inlet of the water storage tank, an outlet of the water storage tank is communicated with an inlet of the ejector through the second water pump, a shell side outlet of the thermochemical reactor is communicated with the inlet of the ejector, and an outlet of the ejector is communicated with the inlet of the water storage tank. According to the system and method, the temperature of hot water at an inlet of the heat exchanger is stable in the heat absorption process, the heat exchange power is continuous, and meanwhile the temperature of hot working media entering the heat exchanger is stable in the heat release process.

The application provides a regenerative heat cycle and an intermediate regenerative mechanical compression heat pump, and belongs to the technical field of thermodynamics and heat pump. The regenerative heat cycle is a closed process composed of eight processes of a certain mass of circulating working medium in sequence, namely, a low-temperature heat source heat absorption process 12, a pressure increasing process 23, a circulating working medium heat absorption process 34, a pressure increasing process 45, a high-temperature heat source heat release process 56, a pressure decreasing process 67, a circulating working medium heat release process 78 and a pressure decreasing process 81. The heat release of the process 78 satisfies the heat absorption of the process 34. Based on the regenerative heat cycle, the corresponding intermediate regenerative mechanical compression heat pump is constructed.

Disclosed herein is a reaction process system comprising: a reactor system configured to support an endothermic process of a feedstock: wherein the reactor system comprises: a reaction chamber with an internal region arranged to support the endothermic reaction of the feedstock; a heating system that is at least partially within the internal region of the reaction chamber; the heating system comprises a plurality of heating reactors; each heating reactor comprises walls that separate an internal region of the heating reactor from the rest of the internal region of the reaction chamber; each heating reactor comprises an oxygen carrier material in the internal region of the heating reactor; each heating reactor is arranged to support a reduction reaction between the oxygen carrier material and a fuel in the internal region of the heating reactor; and each heating reactor is arranged to support an oxidation reaction between the oxygen carrier material and oxygen in the internal region of the heating reactor; one or more heat exchangers arranged to generate the steam by heating water with heat recovered in dependence on one or more fluid flows out of the reactor system; and when applicable, a steam supply conduit arranged to supply at least some of the generated steam to the reactor system.

The present application belongs to the technical field of geothermal source utilization, and particularly relates to a high-efficiency geothermal source high-temperature environment-friendly heat pump system with double-system collaborative optimization. The system comprises a transcritical CO2 system and a refrigerant system coupled through a heat exchanger, and the refrigerant system uses R1233zd(E) refrigerant. Geothermal source water is connected to an evaporator in the refrigerant system and an evaporator in the CO2 system in sequence to complete a secondary heat release process. Heat recovery working medium is connected to an air cooler in the CO2 system and a condenser in the refrigerant system in sequence to complete a secondary heat absorption process. The present application makes full use of the characteristics of CO2 in the transcritical state and the advantages of R1233zd(E) to reduce the floor area of the system. Through reasonable setting of operating parameters and adjustment of load matching, geothermal source heat can be efficiently extracted, and while providing a 120 DEG C high-temperature heat source, a 20 DEG C geothermal return water basis can be completed, and the system COP is kept at greater than or equal to 2.5.

A method for improving an endothermic process in a furnace comprising reforming tubes positioned vertically in rows within the furnace, wherein the inner row of burners is positioned between two rows of tubes and the outer row of burners is positioned between a row of tubes and a side wall parallel to the row of tubes, wherein the method improves temperature homogenization of the tubes by throttling a portion of the burners, the method comprising the steps of a) optionally calibrating a simplified physical model of step c3) by measuring one or more actual tube temperatures of at least one tube affected by burner throttling in standard and throttled states, b) obtaining information about the actual tube temperatures of the tubes present in the furnace, all burners present in the furnace being under standard non-throttling conditions, c) obtaining a map of the burners to be throttled, comprising c1) selecting at least one parameter representative of the performance of the furnace and a target for improvement, c2) selecting at least one or more power ratios for burner throttling, c3) utilizing the information of step b) and a simplified physical model of the effect of throttling the burners on tube temperature, c4) obtaining a map of the burners to be throttled, and d) throttling the burners.

A system (1) for heat-coupled processes, the system (1) comprising: at least one heat-emitting process device (P1) configured to carry out a technical process and thereby release waste heat at a temperature T1; at least one heat-absorbing process device (P2) configured to carry out a technical process and thereby absorb heat at a temperature T2 higher than T1; a heat pump (10) configured to raise the waste heat of the heat-emitting process device (P1) from T1 to T2;and a T1 storage device (20), which is a thermal storage device, is arranged between the heat-emitting process device (P1) and the heat pump (10) and is configured to store the waste heat of the heat-emitting process device (P1), preferably at the temperature T1, and / or a T2 storage device (30), which is a thermal storage device, is arranged between the heat pump (10) and the heat-absorbing process device (P2) and is configured to store the heat to be absorbed by the heat-absorbing process device (P2), preferably at the temperature T2.;

The invention discloses a carbon dioxide mineral heating gasification collaborative integrated intelligent control system. The device comprises a gasification device used for gasifying liquid carbon dioxide into gaseous carbon dioxide; the mineralization reaction device is used for carrying out carbon dioxide mineralization reaction; the heat circulation system is used for recovering heat released by the mineralization reaction device and transferring the heat to the gasification device; and the intelligent control module is used for monitoring and controlling the operation state of the system in real time. According to the invention, a dynamic closed heat cycle system based on a controllable circulating medium is constructed, so that energy and quality collaborative optimization of carbon dioxide mineralization reaction heat release and gasification heat absorption processes is realized; a multi-parameter real-time sensing and intelligent decision-making system is used for driving a cycle working medium to form a closed-loop heat transportation loop between the mineralization heat release section and the gasification heat absorption section; through a dynamic coupling regulation and control mechanism, the dynamic balance of the mineralization reaction enthalpy change rate and the thermal load required by the gasification phase change is accurately matched; and an intelligent operation system with heat-flow double-flow cooperative control as a core is established.

This application relates to the field of hydrogen storage technology, and in particular to a solid-state hydrogen storage device and a solid-state hydrogen storage testing system. The solid-state hydrogen storage device includes a supporting component, a hydrogen storage tank, a fan, and a heating component. The supporting component forms an installation cavity, in which the hydrogen storage tank is installed. The heating component is disposed on the side wall of the installation cavity and is used to heat the hydrogen storage tank. The supporting component has an air inlet and an air outlet communicating with the installation cavity. The fan is disposed on the supporting component and is connected to both the air inlet and the outside of the supporting component, and is used to blow air to cool the hydrogen storage tank. Therefore, during the hydrogen charging and heat release process, the fan can be activated to dissipate heat, thus preventing a sudden increase in local temperature and improving the stability of the hydrogen storage material. During the hydrogen release and heat absorption process, the heating component can be activated to continuously heat the hydrogen, thereby solving the problem of insufficient heat supply, ensuring the continuous progress of the reaction, and improving the reliability of the test.

The utility model discloses a triple heat dissipation device, and relates to the technical field of vapor chambers. Comprising an upper copper plate and a lower copper plate which are used for rapid heat dissipation, and the thickness of the upper copper plate and the thickness of the lower copper plate are 0.1 mm-0. 3 mm due to the fact that the upper copper plate and the lower copper plate are integrally formed A sealed cavity is formed between the upper copper plate and the lower copper plate and used for low-boiling heat dissipation of water working media, and the height of the sealed cavity ranges from 0.2 mm to 0.6 mm. In the using process, when heat generated by a heat source is rapidly transmitted through the upper copper plate, the temperature of a water working medium in the sealed cavity rises, when the temperature reaches the boiling point, the working medium is rapidly subjected to phase change and absorbs a large amount of latent heat of vaporization, and due to the fact that the density of a gaseous working medium is lower than that of a liquid working medium, the gaseous working medium is diffused upwards under the action of buoyancy and fills the whole sealed cavity; the liquid working medium which flows back to the surface of the upper copper plate absorbs heat again, the boiling heat absorption process is repeated, continuous condensation circulation is formed, the device can adapt to the inclination angle in any direction, and the device is far superior to the traditional gravity dependence limitation that VC is only smaller than or equal to 15 degrees.

A mesoscale modeling method for a complex reaction transport process of a photocatalytic reaction system adopts a lattice Boltzmann multi-component flow model, and constructs a complex transmission process numerical model coupling light, heat, mass, flow and reaction based on a photocatalytic microreactor system; compared with the prior art, the method has the advantages that the component transformation process is simulated by introducing a source item into a density distribution function, and dynamic coupling of multi-component flow, diffusion and reaction heat absorption processes under the micro-mesoscale can be accurately simulated by combining an SC pseudo-potential model, a coupling dynamic chemical reaction model and a heat transfer model; the model can analyze coupling behaviors of illumination intensity, heat transfer, material transport and interface reaction at the same time, and is suitable for micromechanism research and enhanced regulation and control of multiple physical processes in a photocatalytic microreactor; the method effectively captures the production, aggregation, desorption and discharge processes of gas-phase products in the process of producing hydrogen through photocatalytic decomposition of water with porous structure characteristics.

The present application belongs to the technical field of high-temperature molten slag waste heat utilization of liquid slag discharge boiler, and particularly relates to a boiler liquid slag waste heat recovery and utilization system and method based on a complex transcritical CO2 power cycle. The boiler liquid slag waste heat recovery and utilization system comprises a molten slag buffering unit, a centrifugal granulation unit, a waste heat recovery unit and a complex transcritical CO2 power cycle power generation assembly; wherein the centrifugal granulation unit is connected with the molten slag buffering unit to receive high-temperature liquid molten slag and granulate the same into solid granulated slag; the waste heat recovery unit recovers the molten slag waste heat of the centrifugal granulation unit by taking air as the working medium, and delivers the recovered molten slag waste heat to the complex transcritical CO2 power cycle power generation assembly for utilization. The present application fully utilizes the advantages of the complex cycle in maintaining the top-level heat absorption process unchanged, additionally increases the output power of the bottom-level cycle to improve the thermodynamic characteristics of the cycle, so as to achieve the purpose of utilizing the waste heat of the power station liquid slag discharge boiler.

The application discloses a carbon dioxide capturing system and relates to the technical field of carbon dioxide capturing. The application combines a heat exchange device with a heat pump, utilizes the characteristics of water vaporization and latent heat absorption, fully utilizes the reaction heat of CO2 absorption, realizes the heat grade promotion of water vapor generated by the heat exchange device through the heat pump, further releases a large amount of latent heat, and then generates high-temperature steam by using the latent heat, so that energy is provided for the carbon dioxide desorption process, the steam latent heat is reused, the reaction heat of the carbon dioxide absorption stage can be used for the heat absorption process of the desorption stage, the problem of heat consumption caused by the large and repeated temperature rising and falling process between the absorption and desorption devices in the traditional carbon dioxide capturing process is solved, the energy consumption of the absorbent regeneration process and the carbon dioxide capturing process is obviously reduced, the CO2 absorption efficiency is improved, and large-scale industrial popularization and application can be facilitated.