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1076 results about "Internal heating" patented technology

Internal heat is the heat source from the interior of celestial objects, such as stars, brown dwarfs, planets, moons, dwarf planets, and (in the early history of the Solar System) even asteroids such as Vesta, resulting from contraction caused by gravity (the Kelvin–Helmholtz mechanism), nuclear fusion, tidal heating, core solidification (heat of fusion released as molten core material solidifies), and radioactive decay. The amount of internal heating depends on mass; the more massive the object, the more internal heat it has; also, for a given density, the more massive the object, the greater the ratio of mass to surface area, and thus the greater the retention of internal heat. The internal heating keeps celestial objects warm and active.

Continuous biomass low-temperature pyrolytic charring method and charring furnace thereof

InactiveCN102226092ARealize continuous carbonization productionImprove raw material adaptabilityDirect heating destructive distillationBiofuelsCombustion chamberRetention time
The invention discloses a continuous biomass low-temperature pyrolytic charring method and a charring furnace thereof, belonging to the fields of biomass charring and biomass energy source utilization. The furnace body of the charring furnace adopts a screw propelling feed mode, and the power is derived from the drive of a motor; an external heating cylinder is sheathed outside an internal heating cylinder of the furnace body, the internal cylinder and the external cylinder are spaced, and the internal flue inside the sleeve has a labyrinth path to ensure heat supply from hot flue gas to pyrolytic reaction to uniformly heat a biomass raw material; and during charring, the generated flue gas supplies heat to a reaction cylinder after combustion in a combustion chamber, and the hot flue gas enters a heat exchanger device to dry the raw material after flowing through the sleeve. Through screw propelling, the method disclosed by the invention realizes continuous low-temperature pyrolytic charring reaction, and realizes accuracy control of the retention time of the biomass inside the charring furnace; and the furnace body adopts a sleeve structure, which fully utilizes the afterheat of the charring flue gas, and the reaction cylinder adopts interior heating and outer wall heating together, which enhances the uniformity characteristic of the temperature inside the reaction cylinder and prolongs the service life of an auger shaft.
Owner:NANJING NORMAL UNIVERSITY

Sprouted auxiliary means for improving microwave desiccation homogeneity of granular garden stuff

The invention discloses an auxiliary spouting method for improving the uniformity of microwave drying of granular fruits and vegetables, which belongs to the technical field of the processing of fruit and vegetable food. Pretreated fruits and vegetables are placed into a microwave spouting drying bed, the microwave power and the air intake heating temperature are preset, then the central air intake volume and the air intake angle of the spouting bed are adjusted to ensure that a dried material spouts in the spouting bed in different forms, the air intake pressure and the air intake angle are adjusted according to different drying stages of the material at the same time, and the microwave energy received by the material is more uniform than that of the prior fixation or fluidization mode; and the microwave adopts internal heating, so the moisture of the dried fruits and vegetables is effectively and quickly evaporated to achieve the aim of uniform drying. Through the auxiliary spouting method, the material is uniformly heated in a microwave field, the moisture is evaporated quickly, the drying time is greatly shortened, the prior color and luster, shape and nutrient substances of the dried fruits and vegetables can be furthest retained, and the dried fruits and vegetables have porous structures and good rehydration property, thereby obtaining a high-quality dehydrated fruit and vegetable product.
Owner:JIANGNAN UNIV +1

High-efficiency solar phase-change heat-accumulation heat-collection wall system

The invention discloses a high-efficiency solar phase-change heat-accumulation heat-collection wall system, which belongs to the technical field of a heat-accumulation heat-collection building utilizing solar energy. A phase-change material plate is attached to the surface of the wall body of a building in a passage of the solar heat-collection heat-accumulation wall, various vortex generators are arranged at the surface of the phase-change material plate at a certain attack angle of incident flow by an array mode, and vortex is induced to thin and destroy a boundary layer clinging to the wall surface or increase the turbulence intensity so as to reinforce the heat exchange of air at the surface and the phase-change material plate and enhance the heat-accumulation/heat-release rate of the phase-change material, thereby enhancing the efficacy of the solar phase-change heat-accumulation heat-collection wall system. Openings at the top end and the bottom of the passage are respectively communicated with a room of the building and an outdoor space, different operation strategies are respectively adopted in winter and summer, and heat is supplied to an indoor space in winter; and hot air in the passage is exhausted in summer, and the comfort level of the indoor space is enhanced. The solar heat-collection heat-accumulation wall has the characteristics of simple manufacture and convenient installation and has extensive application prospect and popularization value in a solar building.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)

Sludge pyrolysis carbonization technique and device

The invention discloses a sludge pyrolysis carbonization technique and device. The technique comprises the following steps: sludge is pressed by a press, pulverized by a pulverizer, mixed by a mixer, dried in an internal heating rotary kiln drying machine, sent into a storage bin, and sent into a pyrolysis carbonization furnace; the sludge is subjected to pyrolysis carbonization in the pyrolysis carbonization furnace; the product solid carbon mixture is sent out of the system, and the products vapor and pyrolytic gas enter a separation purification tower to be separated and purified; the purified combustible gas is sent into a combustor and combusted into an internal heating rotary kiln drying machine delivery heat source, and the purified heavy components are sent into the mixture and mixed with the sludge to perform secondary pyrolysis; the flue gas generated by the heating furnace is discharged into a hot-blast furnace to perform secondary ablation; and the exhaust generated by the whole device is discharged by an outlet I of the internal heating rotary kiln drying machine, and is treated and discharged after reaching the standard. The device has the advantages of simple production technique, stable product state and no secondary pollution, and implements the reduction, harmless treatment and recycling of sludge treatment.
Owner:刘晓静

Phase change thermal storage tester

The present invention relates to a phase change thermal storage tester, and consists of a water bath, a voltage stabilizer, a solid state relay, a power converter, a temperature detector, a data acquisition instrument and a computer. The water bath consists of an internal heating barrel, an electric heating rod and an external insulating barrel. One end of the voltage stabilizer is connected with a power supply, and the other end is connected with the electric heating rod and used for providing electricity for the electric heating rod. The solid state relay, the data acquisition instrument and the computer together form the monitoring and controlling part of the whole testing process. The data collected by the data acquisition instrument is used for judging whether the heating needs stopping or starting. The computer transmits commands to connect or disconnect the solid state relay. Aiming at the defect in the existing experimental method of researching or testing phase change materials for construction, the device can heat the water bath with the phase change materials for construction, measure the temperature by the temperature sensor, map the real-time temperature curve, control the starting and stopping of the heating device, and calculate the stored heat of the phase change materials for construction according to the test data.
Owner:CHINA ACAD OF BUILDING RES

Indoor geothermal heating structure using capillary network and phase change heat storage material

The invention discloses an indoor geothermal heating structure utilizing a capillary network and a phase-change thermal storage material, which belongs to the technical field of solar building heating. The structure includes a floor decoration layer, an upper phase change material, a capillary grid, a lower phase change material, a reflection film, an insulation layer and a floor base layer from top to bottom. The floor decoration layer is supported by dragon frames laid on the insulation layer, the dragon frames pass through the tube gaps of capillary grids, and the phase change material layers are arranged between adjacent dragon frames. The hot water from the low-temperature heat source exchanges heat with the upper and lower phase-change materials in the capillary, and supplies heat to the room through the floor decoration layer; at night, the phase-change material solidifies and releases heat to supply heat to the room through the floor decoration layer. The indoor geothermal heating structure of this capillary network and phase change heat storage material has the characteristics of large heat exchange area, uniform temperature, fast start-up, less space occupation, more flexible layout, and convenient installation. The indoor temperature is uniform, and the indoor thermal comfort is good. Wide application prospects and promotion value.
Owner:NORTH CHINA ELECTRIC POWER UNIV (BAODING)

Cold, heat and electricity combined storage and combined supply system

The invention discloses a cold, heat and electricity combined storage and combined supply system. The system comprises a heat pump heating and cooling energy storage loop, a cold and heat energy heatengine power generation loop, a heat supply loop and a cold supply loop; power station off-peak (cheap) electricity is used for driving a heat pump heating and cooling circular loop to make high-temperature heat energy and low-temperature cold energy, the heat energy and the cold energy are stored in a heat storage device and a cold storage device, at the power utilization moment, gas in the loopsabsorbs the stored high-temperature heat energy and the stored low-temperature cold energy, through heat engine circulation, an electric generator is driven to generate electricity, and the electricity is supplied to a user. On the heat using time interval, the heat supply loop supplies the heat energy in the heat storage device to the user through the heat exchanger, and on the cold using time interval, the cold supply loop supplies the heat energy in the cold storage device to the user through the heat exchanger. Through the cold, heat and electricity combined storage and combined supply system, simultaneous storage and supply of cold, heat and electricity can be achieved, various needs of the user can be met, and the system has the advantages of being high in energy storage density, low in cost, high in efficiency, suitable for power grid peak shaving and various renewable power stations, free of generating room temperature gas and the like.
Owner:INST OF ENGINEERING THERMOPHYSICS - CHINESE ACAD OF SCI

Electrochemical-thermal coupling model-based low-temperature heating method without lithium precipitation for lithium ion battery

In order to solve the problem of lithium precipitation damage to capacity of a battery due to improper selected current amplitude during low-temperature heating of an existing battery, the invention provides an electrochemical-thermal coupling model-based low-temperature heating method without lithium precipitation for a lithium ion battery, and belongs to the field of application of an electric vehicle battery management system. The method comprises the following steps of 1, acquitting a pre-heating current limitation condition according to an electrochemical-thermal coupling model on the premise that metal lithium of the lithium ion battery is not precipitated, wherein the limitation condition conforms to a formula I: -1<={3*Q<n>*c<0.5><0>*(1-x<surf>)<0.5>(x<surf>)<0.5>*[(e<(F*U<n>) / (2*R*T)-(e<(-F)*U<n> / (2*R*T))]} / P<act>, formula II: U<min><=V<=U<max>, and V=E<ocv>-Eta<act-n>-Eta<con>-Eta<ohm>; and 2, performing low-temperature heating on the lithium ion battery according to the acquired pre-heating current limitation condition. By the method, damage to the battery during the internal heating process of the battery is prevented, the service lifetime of the battery is prolonged, and the safety of the battery system is improved.
Owner:哈尔滨和睿科技有限公司

Consecutive reaction apparatus for moisture sludge through anhydration and pyrolysis under microwave irradiation as well as method thereof

ActiveCN104163555AGood heating selectivityRapid pyrolysisSludge treatment by pyrolysisByproduct vaporizationRadiation lossNitrogen generator
The invention discloses a consecutive reaction apparatus for moisture sludge through anhydration and pyrolysis under microwave irradiation as well as a method thereof. The condensation comprises a sludge warehouse, a stirrer, a hopper feeder, a sludge-shaped controller, a belt sender, a power control microwave irradiation device, a microwave pyrolysis reaction chamber, a pressure sensing controller, a blower fan, a condensation heat exchanger, a scraper plate separator, an oil-water separating device, a liquid dredging groove, a coke storage tank, a product oil tank, a product gas tank, a nitrogen generator, a coke crusher, a sludge water pot and a gas shunting plate. According to the invention, microwave material internal heating characteristic can be fully used for reducing heat radiation loss, moisture sludge is directly performed with anhydration and pyrolysis to obtain the cracking oil, combustible gas and solid coke; heat recovery of the product gas and auxiliary microwave heating characteristic of the products residue are fully used for reducing the operation cost, and sludge pyrolysis efficiency and products quality can be increased. The apparatus has the advantages of simple structure, small volume, reasonable design and convenient market popularization, and is suitable for industrial application of microwave sludge continuous pyrolysis.
Owner:ZHEJIANG UNIV
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