123results about How to "Improve thermal efficiency" patented technology

The subject invention pertains to a method and apparatus for storing thermal energy. The subject thermal energy storage apparatus can function as a heat absorber in a cooling system. A cooling system can incorporate a cooling cycle that utilizes thermal energy storage and has two coolant loops. The primary cooling loop acquires the waste heat from a heat source, such as an electronic device, by heat transfer to the primary coolant via, for example, a sensible heat process (where sensible heat is heat absorbed or transmitted by a substance during a change in temperature which is not accompanied by a change of state) or by evaporating the primary coolant through a latent heat phase change process. The waste heat absorbed by the primary coolant is transferred to the host material of the heat absorber. The subject invention uses a high thermal conductivity host material to house a lower thermal conductivity phase change material, in order to achieve a thermal energy absorber that has a high effective thermal conductivity. In a specific embodiment, the high thermal conductivity host material has have voids within the structure that can be filled by the phase change material. The increased surface area of phase change material in thermal contact with the host material per volume of phase change material allows the thermal energy to be stored or released quickly, because of the enhanced effective thermal conductivity.

A compound cycle engine (10) comprises a compressor and a turbine section (14, 18), and at least one cycle topping device (16) providing an energy input to the turbine section (18). The compressor section (14) compresses the air according to a pressure ratio PR_gt. The cycle topping device (16) further compresses the air according to a volumetric compression ratio R_vc, and wherein PR_gt×R_vc are selected, according to one aspect of the invention, to provide a cycle which permit a more compact and lighter compound cycle engine to be provided.

Disclosed is an air fryer which comprises a fryer rack, a fryer body, a cover and a base. The fryer body is located in the fryer rack which is located in the base, and one end of the cover is hinged to the tail of the fryer rack while the other end of the cover is connected with the front of the fryer rack in an openable and closable manner. The air fryer further comprises a hot air circulation structure which comprises an axial flow fan, a wire heater and a hot air passage, the axial flow fan is mounted in the front of the fryer rack, an axial air suction opening of the axial flow fan is located in a hole between the fryer body and the fryer rack, a radial air outlet of the axial flow fan is communicated with an outlet at the bottom of the hot air passage which is disposed vertically and located in the cover, the outlet of the hot air passage is horizontal in direction and communicated with an inner cavity of the fryer body, and the wire heater is located in the hot air passage. The air fryer is capable of effectively lowering power consumption and high in heat efficiency.

A system and a method for recovery of carbon dioxide in exhaust gas, wherein a liquid absorbent (116) jetted from a liquid absorbent jetting part (101) comes into gas-liquid contact with exhaust gas (114) flowing through a packing (102) from the lower side to the upper side to absorb the carbon dioxide contained in the exhaust gas (114). The flow of the liquid absorbent (116) in a deposition vessel (11) conditioned to a specified pH value is stopped to deposit insoluble compounds as the reaction product of the liquid absorbent (116) against the carbon dioxide, and the carbon dioxide is collected as the insoluble compounds. Thus, the carbon dioxide can be removed from the liquid absorbent which absorbed the carbon dioxide without using steam from a power generating boiler.

The invention relates to a thermal power plant including a turbine (1, 2, 3) operated using at least one water-steam-loop (4), and a generator (5) driven by said turbine (1, 2, 3). According to the present invention, means (6, 7, 8, 9, 10) for cooling said generator (5) are provided, which means (6, 7, 8, 9, 10) are de signed for extracting condensate from said water-steam-loop (4), transporting it to said generator (5) and returning it into said water-steam-loop (4).

Disclosed is a method and apparatus for improving thermal efficiency and reliability of a linear power amplifier of a communication system. In an illustrative embodiment, the communication system operates in a half-duplex mode and a transistor control terminal (e.g., gate) of the amplifier is biased at a first bias voltage during transmit intervals of the half-duplex mode. The control terminal is biased at a second bias voltage different from the first bias voltage during receive intervals. The second bias voltage is sufficient to reduce idle currents in the amplifier during the receive intervals, thereby improving thermal efficiency of the amplifier. Also disclosed is a base station including a base station controller, a variable bias control circuit and a linear power amplifier. The variable bias control circuit operates under the control of the base station controller to supply a variable bias voltage to the amplifier. Thermal efficiency of the amplifier is improved by reducing idle currents via appropriate bias voltage control during a weak signal transmitting mode and/or during receive intervals of a half-duplex operating mode.

Provided are a different-dimensionality high-heat-conductivity material enhanced and polymer based composite and a preparation method thereof.The composite is made by compositing a polymer base and a high-heat-conductivity enhancer.The high-heat-conductivity enhancer comprises a one-dimensional linear enhancer, a two-dimensional flaky enhancer and a three-dimensional meshed enhancer; the high-heat-conductivity enhancer is made from a combination of one or any of diamond, graphene, carbon nanotubes and aluminum nitride; the polymer base may be added with high-heat-conductivity particles; the high-heat-conductivity particles may be a combination of one or any of diamond, graphene and carbon nanotubes.By distributing the high-heat-conductivity enhancer in the polymer base, heat conducting efficiency of a polymer is greatly improved.

The present invention relates to a heat transfer tube with spiral groove, comprising a stainless steel tube body with inward convex spiral groove on surface, wherein the stainless steel tube body possesses unequal height and width in the cross sectional view. In the EGR (Exhaust Gas Recirculation) cooling system for automotive engine, such kind of spiral groove tube with the unequal height and width in the cross-section acting as the heat transfer tube for the cooler make the cooler gain higher heat transfer effect, and it is hard to make dirt deposited inside or outside the tube, which greatly improves the emissions performance for automotive engine, and satisfies higher requirement of environmental protection.

The invention relates to a heater for electrically heating cigarettes, in particular to a heater for heating cigarette products to generate smoke in a non-combustion conduction mode. The heater belongs to the technical field of low-temperature cigarettes and comprises an insulation shell, heating wires fixed in the shell and a public end connected with the heating wires. One ends of the heating wires are uniformly connected with the public end and are symmetrically lead out from the public end; the heating wires are round, polygonal or spiral heating wires formed by winding, and 8 or more heating wires are fixed at the inner wall of the shell. The heater for electrically heating the cigarettes is high in heat conduction efficiency, fast in temperature rising, high in mechanical strength and low in cost.

The present disclosure relates to a deposition apparatus used to manufacture a semiconductor device including a process chamber; a substrate susceptor installed in the process chamber and including a plurality of concentrically arranged stages on which substrates are positioned; a plurality of members for supplying reaction gas; a member for supplying purge gas; a spray member including a plurality of baffles for independently spraying reaction gas and purge gas, supplied from the plurality of members supplying reaction gas and the member supplying purge gas, on the entirety of the treating surfaces of the substrate, in positions corresponding respectively to the substrates positioned on the stages; and a driving unit for rotating the substrate susceptor or the spray member in order for the baffles of the spray member to sequentially revolve each of the plurality of substrates positioned on the stages.

The present invention advantageously provides a method and system for the improved isolation and corresponding treatment of tissue targeted for cryogenic or other thermal therapy to increase the thermal efficacy and thermal efficiency of the treatment. In particular, the present invention provides methods and systems for improved thermal treatment of target tissue, such as a pulmonary vein and/or regions of the left atrium by reducing the resistive forces and/or increased thermal energy experienced from blood flow exiting the pulmonary vein into the left atrium during treatment.

An engine structure and mechanism that operates on various combustion processes in a two-stroke-cycle without supplemental cooling or lubrication comprises an axial assembly of cylindrical modules and twin, double-harmonic cams that operate with opposed pistons in each cylinder through fully captured rolling contact bearings. The opposed pistons are double-acting, performing a two-stroke engine power cycle on facing ends and induction and scavenge air compression on their outside ends, all within the same cylinder bore. The engine includes a novel novel combustion chamber configuration comprising a semi-torus formed by a peripheral relief provided around the outer perimeter of each piston crown. This arrangement leaves a large central surface or squish land on each piston crown permitting a small piston clearance to be used for the purpose of generating a strong, radially-outward flow (squish) as the pistons approach each other in their cyclic motions. The cross-section of the toroidal space may be varied from point to point about the perimeter to provide improved entrance regions for the fuel injection.

A tooling assembly for hot stretch-forming of a sheet metal workpiece. A forming tool is attached to a plate and includes a shell having a forming surface, and support walls that extend away from the shell, that terminate in a rearward surface of the forming tool, and that define open cells between the support walls. Heating elements are embedded within the forming tool for integral and uniform heating thereof. To limit conductive thermal losses from the forming surface, through the forming tool, and to the plate and surrounding environment, the open cells are provided in the forming tool and insulative support posts are disposed between the forming tool and the plate within deep counterbores in the rearward surface of the forming tool. To limit radiative and convective thermal losses, thermal insulation is disposed within the cells and between the forming tool and plate.

The invention provides a method and device for processing exhaust gas containing high-concentration organic pollutant. A combustion chamber of an integrated RTO (Regenerative Thermo Oxidation) device is modified into two integrated or split type combustion chamber devices, and high temperature exhaust gas in one combustion chamber is led out, and with the combination of an external waste heat recovery device of the combustion chamber, waste heat recovery (capable of recovering superheated steam, saturated steam or hot water) and utilization of redundant heat energy of a second high temperature combustion chamber are achieved; moreover, if an ammonia gas replenishing device is additionally arranged at an exhaust gas inlet, with the combination of the SNCR (Selective Non-Catalytic Reduction) technology, the purpose of purifying NOx pollutants to N2 and H2O can be achieved. Under the premise of keeping the advantages (high heat efficiency, high removal rate, low investment and small occupied area) of the traditional RTO technology, the technology limitation that the traditional RTO technology only can be used for processing low concentration volatile organic pollutant exhaust gas can be overcome.

The invention discloses a brown coal pipe drier which comprises a rotating cylinder body and a center rotating shaft. The axis of the center rotating shaft coincides with the axis of the rotating cylinder body. The two ends of the center rotating shaft are supported on bearing bases on the two sides outside the rotating cylinder body respectively. The axis of the rotating cylinder body is oblique downwards from a feeding end cover to a discharging end cover. The center rotating shaft is of a hollow pipe structure. A hollow pipe oil inlet is connected with an oil inlet rotating connector. A hollow pipe oil outlet is connected with an oil pump through an oil outlet pipe. An oil pump oil outlet is connected with a smoke way heating ring pipe heat exchanger which is connected with an oil inlet of an oil tank. The hollow pipe is provided with a first sealing blocking plate and a second sealing blocking plate. The hollow pipe is provided with a radial oil inlet and a radial oil outlet. A brown coal drying pipe is arranged in a space between the outer wall of the center rotating shaft and the inner wall of the rotating cylinder body. Negative pressure is formed through the oil pump mounting rolling cylinder outlet position, safety is high, potential safety hazards caused by high temperature positive pressure are avoided, waste heat generated by a boiler or a process pipe is used as a heat source, circulating is reasonable, and energy is saved.

The invention relates to a high-power LED heat radiator, and belongs to the field of LED heat radiation. The high-power LED heat radiator based on a heat pipe technology is characterized in that a gravity heat pipe in the center and sunflower-shaped cooling fins (4) around the gravity heat pipe are included, the gravity heat pipe comprises a middle through pipe (1), an upper cover (2) and a bottom cover (3), the middle through pipe (1) is integrally welded to the upper cover (2) and the bottom cover (3), vacuum is formed in a sealing mode, the space among the middle through pipe, the upper cover and the bottom cover is filled with refrigeration media (5), the cooling fins (4) are arranged around the through pipe (1), a plurality of evenly-distributed protruding groove emulsion structures (6) are arranged in the portion, in the through pipe, of the upper surface of the bottom cover (3), a sealing hole (7) is formed in the middle of the upper cover (3), and the lower portion of the bottom cover (3) is connected with an LED lamp. The structure of overall vacuum sealing and the surrounding cooling fins is adopted, the heat conduction efficiency of the heat pipe is improved, heat radiation is fast, the size is small, and the service life is long.

The invention discloses a cylindrical shell straight-plate finned automobile exhaust thermoelectric generation device. Two semi-cylindrical shells with identical structures are connected onto an exhaust pipe in an abutting manner and fixed by fastening bolts in a welded mode, heat conducting fins are mounted on assembly grooves reserved in the semi-cylindrical shells, a certain number of thermoelectric generation modules are closely fitted on two sides of the fins, an independent thin-walled cooling pipeline with a rectangular section is arranged on the thermoelectric generation module on each surface of the fins, the cooling pipeline on each surface of the fins is fixedly mounted by supporting disks at two ends and a fastening device, and insulation gaskets are additionally mounted at different positions of the supporting disks to reduce influence on the temperature of cooling liquid in a cooling channel. The cylindrical shell straight-plate finned automobile exhaust thermoelectric generation device has the advantages of simple and compact structure, high working reliability, fine heat conducting effect and the like. Compared with a traditional exhaust pipe thermoelectric generation device, the structure of the exhaust pipe does not need to be changed, exhaust back pressure cannot be affected, and the cylindrical shell straight-plate finned automobile exhaust thermoelectric generation device is suitable for large-scale popularization and application.

The invention mainly discloses a non-pressure bearing split type light control solar water heater which mainly comprises a heat collector and a light control integrator. A water tank and the heat collector are arranged in a split manner, and the whole system is controlled by the light control integrator. The water tank is a non-pressure bearing insulation water tank, the heat collector consists of a plurality of vacuum tubes which are transversely arranged, and the position of the heat collector is higher than that of the water tank. The solar water heater is composed of the heat collector, the light control integrator, a light sensor, a main aqueduct and a branch aqueduct, a water returning device, a circulating pump, a solenoid valve, the water tank and the like parts, which can achieve integration of the solar water heater and the building, the independent installation and greatly improved forced circulating heat efficiency; the main aqueduct and the branch aqueduct can cause the heat collector to realize thorough exchange between the cold water and the hot water, the light control integrator can cause the whole system to operate automatically and aperiodically, which greatly improves the work efficiency of the system; the water returning device can cause the hot water in the vacuum tubes to return to the water tank for use, prevent frost crack of the vacuum tubes of the heat collector under the conditions of low light intensity, low temperature or ultra-low temperature, and greatly relieve the thermal efficiency reduction caused by scale deposit generated in the vacuum tubes.

The invention provides a preparation method of crosslinking type aliphatic polycarbonate, and belongs to the technical field of high polymer materials. The crosslinking type aliphatic polycarbonate is prepared by using carbon dioxide, an epoxy compound and itaconic anhydride as terpolymers through one-pot polymerization. The crosslinking type aliphatic polycarbonate prepared by the method has good mechanical property, thermal property, degradation property and a very good application prospect in the fields such as biological medicines. Experiments prove that the crosslinking degree and the properties of the aliphatic polycarbonate can be effectively controlled by changing the addition amount of itaconic anhydride monomers in the polymerization reaction process or polymerization reaction conditions (temperature, time and pressure) so as to meet the requirements of different purposes.

In a stratification operation, O₂ is injected from an oxygen injector during valve opening of an intake valve. Therefore, the injected O₂ flows into a combustion chamber immediately after the injection, and forms a layer having a constant spread in the combustion chamber. Meanwhile, the working gas in the combustion chamber forms such a layer as to cover the O₂ layer on a wall surface of the combustion chamber in conjunction with formation of the O₂ layer. In other words, in the combustion chamber, an inner layer with a high O₂ concentration and an outer layer with a high working gas concentration are respectively formed.

A thermal generator (100) with at least one thermal module (110) comprising at least two magnetocaloric elements (111, 112). The thermal generator is characterized in that it comprises at least two magnetic assemblies (131, 132) in which one magnetic assembly (131, 132) subjects at least one magnetocaloric element (111, 112) of the thermal module (110) to alternate magnetic phases. The thermal generator is further characterized in that it comprises a thermally insulating body insulating the magnetic assemblies (131, 132) from each other and forming thermally insulated cells (141, 142) comprising one magnetic assembly (131, 132) and its corresponding magnetocaloric elements (111, 112).

The invention relates to a tubular fuel cell which is characterized by comprising an outer shell, a thermal insulation inner shell, a first louvre damper, a second louvre damper, sub-stacks, an electric heating tube and a fan, wherein a ventilation opening and an exhaust opening are formed in the outer shell; the thermal insulation inner shell is integrally arranged in an inner cavity of the outer shell; the thermal insulation inner shell is in clearance fit with the outer shell to form an air flow channel; ventilation holes are formed in the thermal insulation inner shell; a front thermal insulation end plate and a rear thermal insulation end plate are respectively arranged at a front end part and a rear end part of the thermal insulation inner shell; a tail gas outlet is formed in the rear thermal insulation end plate; the first louvre damper and the second louvre damper are respectively arranged inside the ventilation opening and the exhaust opening; the sub-stacks are arranged in the thermal insulation inner shell and are in clearance fit with each other; the sub-stacks comprise tail gas processors, ceramic tubes and fuel gas distributors; a gas inlet tube and a gas outlet tube of each fuel gas distributor are respectively communicated with external fuel gas and a gas inlet of each ceramic tube; the gas inlet tube and the gas outlet tube of each tail gas processor are respectively communicated with the gas outlet and the exhaust opening of each ceramic tube; two adjacent ceramic tubes are in clearance fit with each other to form a cathode air flow channel; the electric heating tube heats the cathode air flow channel. The tubular fuel cell has the advantages of having high thermal efficiency, preventing outer walls of the ceramic tubes from depositing carbon, and having compact and ordered structure.

The invention discloses a surface tack thermistor element, which comprises a resistor element, a first electrode, a second electrode and at least a thermally conductive insulating layer. The resistor element comprises a first conductive member, a second conductive member and high-molecular material layers, wherein the high-molecular material layers are laminated between the first conductive member and the second conductive member and have characteristics of positive temperature coefficient or negative temperature coefficient. The high-molecular material layers and the first and second conductive members extend together along a first direction to form a laminated structure. The first electrode is electrically connected with the first conductive member. The second electrode is electrically connected with the second conductive member and is electrically isolated from the first electrode. Heat conductivity of the first and second electrodes is at least 50W/mK. The thermally conductive insulating layer contains a high-molecular insulated substrate and a thermally conductive filling material and is arranged between the first electrode and the second electrode. Heat conductivity of the thermally conductive insulating layer is within 1.2W/mK-13W/mK.

The invention provides a battery module with water-cooling heat dissipation for tabs. The battery module comprises a plurality of battery module units, wherein each battery module unit comprises a battery core group consisting of a plurality of battery cores, a front end plate arranged at the front side of the battery core group, a left side plate and a right side plate respectively arranged at the left side and right side of the battery core group, a rear end plate arranged at the rear side of the battery core group, a bracket arranged above the battery core group, and heat-dissipating fins and a water-cooling plate close to the bracket, wherein the bracket is provided with tabs which are arranged at the left side and right side of the bracket; the water-cooling plate is provided with a water feeding pipe, a water discharging pipe and a water-cooling pipeline, and the water-cooling pipeline is wholly U-shaped; the front end plate is provided with a water feeding pipeline, a water discharging pipeline, a positioning pin and a positioning groove, and a vertical water inlet connected with the water feeding pipe is formed in the water feeding pipe and above the front end plate; and a vertical water outlet connected with the water discharging pipe is formed in the water discharging pipe and above the front end plate. Different battery module units are connected and fixed by the positioning pin and the positioning groove. The battery module provided by the invention has the advantages that the heat-dissipating fins and the water-cooling plate are arranged above the tabs generating maximum heat, and the front end plate is provided with the water feeding pipeline and the water discharging pipeline communicated with the water-cooling plate, so that the heat-dissipation efficiency is high, the assembly is simple and the appearance is clean and tidy.

A control system for a compression-ignition engine is provided, which includes an engine having a combustion chamber, an injector, a spark plug, a swirl valve provided to an intake passage of the engine, and a controller connected to the injector, the spark plug, and the swirl valve to control them. The controller includes a processor configured to execute a swirl adjusting module to control an opening of the swirl valve so as to make the opening of the swirl valve smaller as an engine speed decreases and output a control signal to the injector to inject the fuel after the control of the swirl valve, and a combustion controlling module to output an ignition instruction to the spark plug so as to ignite at a given ignition timing after the EGR ratio adjustment, so that partial compression-ignition combustion is performed.

The invention discloses a multiple drying tunnel type oven having a waste gas filtration function. The multiple drying tunnel type oven consists of a drying box, a ventilation box and a filtration box from the top down; a gas exhaust pipeline communicates the drying box with the filtration box; a far-infrared radiation lamp tube and a material conveying mechanism are arranged in the drying box; a horizontal air intake channel is formed in the ventilation box, and communicates the drying box with the filtration box; an electric heating wire is arranged below the horizontal air intake channel; a cooling liquid pipe, a waste gas exhaust pipe and a waste gas absorption solution are arranged and contained in the filtration box; gas vents are distributed in the waste gas exhaust pipe; and the gas exhaust pipeline is connected with the waste gas exhaust pipe in the filtration box through an air pump. The multiple drying tunnel type oven has the following advantages that (1) the far-infrared radiation lamp tube and the electric heating wire are arranged reasonably, multiple drying is realized, and the drying efficiency is high; (2) by employing hot air circulation, energy can be saved; (3) waste gas generated after a material is dried is filtered directly without emission, so that environmental protection is facilitated; (4) the generated waste gas is recycled, so that the production cost is lowered; and (5) the multiple drying tunnel type oven is compact in structure and convenient to use.

The invention relates to an accessory for a computer. The invention discloses a cooling system for a sealed industrial control computer, which comprises a radiator, a heat-conducting pipe and a heat-conducting liquid, wherein a pipe in the radiator is connected with the heat-conducting pipe; and the heat-conducting liquid is arranged inside the pipe of the radiator and the heat-conducting pipe which is embedded into a chassis shell of the computer. The cooling system for the sealed industrial control computer saves intermediate links, improves the heat-conducting efficiency, can quickly transmit heat of heating elements in the computer to the surface of the chassis shell of the computer, has quick cooling speed, and can guarantee safety use of the computer.

The invention discloses an engine ultra-high compression ratio combustion control method and device based on jet ignition of a spark plug pre-combustion chamber. The engine ultra-high compression ratio combustion control method comprises the steps that a spark plug of a spark-ignition engine is connected with a combustion chamber through the spark plug pre-combustion chamber; and according to thesize of the thermal load of the engine, hydrogen is mixed into an air inlet channel under the small load condition, and under the large load condition, the hydrogen is mixed into the air inlet channel, and meanwhile, an EGR system is used for conducting exhaust gas recirculation treatment. By using the engine ultra-high compression ratio combustion control method and device based on jet ignition of the spark plug pre-combustion chamber, knocking combustion can be inhibited, the ultra-high compression ratio is achieved, and the thermal efficiency is high.

Methods and systems relate to steam assisted gravity drainage (SAGD) utilizing well pairs that are at least initially in fluid communication through drilled bores toward their toe ends. At least one of a horizontal injection well and horizontal production well of such a well pair includes a hooked length toward toe ends of each other connecting said injection well and said production well. The methods and systems improve SAGD oil production, reduce SAGD start-up time and costs, and improve overall SAGD performance.

There is provided an exhaust gas treatment system including a CO₂ recovery unit with further enhanced energy efficiency. The exhaust gas treatment system (1) includes: a CO₂ recovery unit (10) including a CO₂ absorption column (11), an absorbing solution regeneration column (16), a condensate supply pipeline (15) for supplying condensate, which contains CO₂ absorbing solution discharged from the CO₂ absorption column (11) to a bottom portion of the absorbing solution regeneration column (16), and a CO₂ separation section (22) for performing heat exchange, via a heat exchanger (23), between the CO₂ discharged from the absorbing solution regeneration column (16) and the condensate; and an exhaust gas heat exchanger (5) provided on a gas upstream side of the CO₂ recovery unit (10) for performing heat exchange between exhaust gas before flowing into the CO₂ recovery unit (10) and the condensate.