34 results about "Radiant heat transfer" patented technology

A clamping system has a workpiece clamp having a platen to support a workpiece and heating elements for heating the platen to a platen temperature. A cooling plate has cooling features to cool to the cooling plate. A vacuum chamber defines a chamber volume between the platen and the cooling plate. One or more radiation shields within the chamber volume can limit a radiative heat transfer between the platen and the cooling plate. A vacuum source and a gas source are selectively fluidly coupled to the chamber volume. A controller controls the platen temperature in both a high and a low temperature regime by controlling a pressure within the vacuum chamber through the vacuum source and gas source to control a heat transfer between the platen and the cooling plate.

A vehicle includes a system configured to supply air to a cabin of a vehicle at a target discharge temperature. One or more solar sensors configured to sense a solar radiation on the cabin and one or more temperature sensors configured to sense air within the cabin. A controller is configured to receive a user set temperature, obtain a solar heat load from one or more outputs of the one or more solar sensors, and obtain a feedback temperature from one or more outputs of the one or more temperature sensors. The controller is further configured to determine a radiation temperature corresponding to radiative heat transfer into the cabin, the radiation temperature being a function of the feedback temperature and the solar heat load. The controller may then set the target discharge temperature according to the user set temperature, the feedback temperature, and the radiation temperature.

Shipping container packaging has a top and bottom tray and a divider assembly including interconnected longitudinal and lateral panels and at least one thermal regulation element to form article surrounding voids or chambers. The at least one thermal regulation element includes heat transfer surfaces in direct radiant heat transfer relation to the articles. In one form, the thermal regulation element includes a refrigerant. In one form, the divider assembly includes plural thermal regulation elements. In one form, the assembly defines bottle surrounding chambers.

A substrate processing apparatus includes a processing container, a substrate support that is provided inside the processing container and supports a substrate, and a heating unit that heats the substrate supported by the substrate support. The heating unit includes a heater wire that transmits radiant heat to a periphery during heating, and a lens member that is provided at a position adjacent to the heater wire. The lens member is disposed between the substrate support and the heater wire to direct radiant heat toward a direction in which the substrate is located, and / or disposed between the processing container and the heater wire to direct radiant heat in a direction perpendicular to a surface of the processing container.

The present invention relates to a cryogenic storage tank equipped with an external evaporative cooling blocking device capable of simultaneously vaporizing liquefied gas and insulating the cryogenic tank, thereby ensuring thermal insulation performance and replacing a heat exchanger. A cryogenic storage tank equipped with an external evaporative cooling blocking device capable of simultaneously vaporizing liquefied gas and insulating the cryogenic tank according to one embodiment of the present invention may include: an inner tank for storing a cryogenic fluid and having one or more transfer pipes on one side for transferring the cryogenic fluid; an outer tank that surrounds the inner tank; a vacuum insulation layer for forming a vacuum space between the inner tank and the outer tank; and an evaporative cooling blocking device installed on the outer wall of the outer tank, which transfers radiant heat to the cryogenic fluid introduced through the transfer pipe to raise the temperature of the cryogenic fluid to room temperature.

A vacuum adiabatic body and a refrigerator are provided. The vacuum adiabatic body includes a support that maintains a vacuum space between a first plate and a second plate, and a heat resistance unit comprising at least one radiation resistance sheet that blocks radiation heat transfer in the vacuum space so as to reduce heat transfer between the first plate and the second plate. The support includes two support plates, and the at least one radiation resistance sheet is supported by at least one support protrusion provided on a bar, which couples the two support plates to each other, to maintain an interval between the first plate and the second plate.

The invention relates to a radiation condensation refrigerating machine for a computing power center. The radiation condensation refrigerating machine comprises a radiation condenser, an evaporator and machine room refrigerating equipment. A refrigerant loop is connected between the radiation condenser and the evaporator; a heat-conducting oil loop is connected between the evaporator and the machine room refrigeration equipment; the evaporator is used for heat exchange between a refrigerant and heat-conducting oil; the radiation condenser comprises a plurality of radiation plate condensation units; the radiant panel condensation unit is mounted on a building outer wall; the heat conduction oil is used for absorbing heat of refrigeration equipment in the machine room and transferring the heat to the refrigerant in the evaporator; the refrigerant is used for absorbing heat of the heat conduction oil and dissipating heat in the radiation condenser; the radiant panel condensation unit is used for emitting heat of the refrigerant to CO2 and H2O in the atmosphere and the external environment in a radiation heat transfer mode. Condensation heat is emitted outwards in a radiation heat transfer mode, water is not used for cooling, and the problem that the computing power center is restrained by water resources is solved; the method has good application conditions aiming at the characteristics that a computing power center building has no external window and has a large-area external wall.

A vehicle includes a system configured to supply air to a cabin of a vehicle at a target discharge temperature. One or more solar sensors configured to sense a solar radiation on the cabin and one or more temperature sensors configured to sense air within the cabin. A controller is configured to receive a user set temperature, obtain a solar heat load from one or more outputs of the one or more solar sensors, and obtain a feedback temperature from one or more outputs of the one or more temperature sensors. The controller is further configured to determine a radiation temperature corresponding to radiative heat transfer into the cabin, the radiation temperature being a function of the feedback temperature and the solar heat load. The controller may then set the target discharge temperature according to the user set temperature, the feedback temperature, and the radiation temperature.

A radiant heat transfer system for heating or cooling a room, has at least one heat exchange element in the form of a panel formed by a first plate and a second plate, the first and second plates being symmetrically profiled to form a flow channel arranged in a serpentine manner between the first and second plates for passage of a heat transfer fluid, wherein the first and second plates are pressed steel plates and are connected to each other by welding over the entire surface of the contact areas between the first and second plates, wherein the connection between the plates is made by laser welding, and wherein a surface texture obtained by laser treatment is present on the surface in contact with the heat transfer liquid of at least one of the first and second plates to increase the heat transfer.

The invention discloses an energy-saving observation hole cover with a multi-stage heat insulation structure. The observation hole cover comprises an upper cover body and the heat insulation structure. The heat insulation structure comprises a cavity heat insulation layer and heat insulation rings distributed on the upper side and the lower side of the cavity heat insulation layer. Wherein a cavity of the cavity heat insulation layer is filled with a heat insulation material; the multiple stages of heat insulation rings are coaxially arranged, the ring core of each stage of heat insulation ring is made of the observation hole cover cast iron body material, the structural strength is guaranteed, the annular area is filled with the heat insulation material, and the heat insulation effect is achieved. The heat insulation rings are coaxially arranged on the upper side and the lower side of the cavity heat insulation layer, the channel sectional area in the heat conduction process can be effectively reduced, the multi-stage structure can increase the heat conduction path, a multi-layer heat insulation structure is formed, and therefore the heat conduction amount and the radiant heat transfer amount of the observation hole cover are reduced; meanwhile, a cast iron body material of the observation hole cover is replaced with a heat preservation material with the low heat conductivity coefficient, heat transfer is further retarded, and the temperature of the outer surface of the observation hole cover is greatly reduced through double optimization of the structure and the material.

A clamping system includes a workpiece clamp (102) having a platform (108) for supporting a workpiece (106) and a heating element (118) for heating the platform (108) to a platform temperature. A cooling plate (122) has cooling features to cool the plate. A vacuum chamber (128) defines a cavity volume between the platform (108) and the cooling plate (122). One or more radiation shields (140) within the cavity volume (128) can limit radiative heat transfer between the platform (108) and the cooling plate (122). A vacuum source (134) and a gas source (142) are selectively fluidly coupled to the cavity volume. The controller (156) controls the heat transfer between the control plate (108) and the cooling plate (122) by controlling the pressure in the vacuum chamber (128) via the vacuum source (134) and the gas source (142), thereby controlling the temperature of the control plate (104) in the high temperature range and the low temperature range.

The invention relates to a solar attack factor for determining airflow and exhaust temperature of a vehicle HVAC system. A vehicle includes a system configured to supply air to a cabin of the vehicle at a target exhaust temperature. The one or more solar sensors are configured to sense solar radiation on the cabin and the one or more temperature sensors are configured to sense air within the cabin. The controller is configured to receive a user set temperature, obtain a solar thermal load from the one or more outputs of the one or more solar sensors, and obtain a feedback temperature from the one or more outputs of the one or more temperature sensors. The controller is further configured to determine a radiant temperature corresponding to a radiant heat transfer into the cabin, the radiant temperature varying with the feedback temperature and the solar thermal load. The controller may then set a target emission temperature according to the user set temperature, the feedback temperature, and the radiation temperature.

The invention provides a combustion method using a fuel combustion device, a cement manufacturing method, and a cement firing facility provided with the fuel combustion device, and the fuel combustion device is provided with a fuel supply mechanism. The fuel supply mechanism is provided with a combustible powder supply mechanism for supplying combustible powder, a fuel gas supply mechanism for supplying fuel gas, and a non-combustible powder supply mechanism for supplying non-combustible powder. The present invention provides a combustion method using a fuel combustion device, a method for manufacturing cement, and a cement firing facility provided with the fuel combustion device, which can reduce the amount of fossil fuel (as fuel supplied to the fuel combustion device provided in various facilities such as the cement firing facility), and maintain the amount of radiant heat transfer from various burners, thereby reducing the amount of fossil fuel used as fuel supplied to the fuel combustion device provided in the various facilities such as the cement firing facility. As a result, the amount of heat transferred to a heated object such as a powder raw material of cement clinker is maintained so as to maintain a state suitable for firing the heated object, the amount of carbon dioxide discharged from the various devices is reduced, and the various devices can be operated at low cost.

Provided is a glass composition which suppresses the formation of a bubble layer on the surface of a glass melt, improves radiant heat transfer from an upper burner, and thus can improve melting efficiency and can be easily formed into a uniform fiber shape. The present invention relates to a composition for glass fibers, which contains SiO2 as the main component, and contains, in mass%, 0-less than 10% of B2O3, 20-30% of MgO + CaO, and 600 ppm or less of SO3, with Fe < 2 + > / total Fe in the glass being 40% or more.

A cooking apparatus includes: a main body configured to form a cooking chamber; a burner configured to generate heat to heat the cooking chamber, the burner including a burner frame through which gas flows and a burner hole formed in the burner frame to discharge the gas; an ignition device configured to ignite the gas discharged through the burner hole and including a heater; and a bracket configured to protect the ignition device. The bracket may include a plurality of bracket holes configured to allow the gas discharged through the burner hole to pass therethrough and to prevent or reduce radiant heat of the heater from being transferred to the burner.

The present application relates to a near-field radiation heat transfer system filled with artificial hyperbolic metamaterials. The system comprises an emitter, a receiver and a filling medium, the filling medium is arranged between the emitter and the receiver; the filling medium is provided with artificial hyperbolic metamaterials, the artificial hyperbolic metamaterials are potassium permeated silicon dioxide nano-porous matrix filling materials; wherein, the system adopts a full-coupling multi-physical field framework integrating near-field radiation, conduction transmission and nonlinear temperature stratification. The present application adopts potassium permeated silicon dioxide nano-porous matrix filling materials as hyperbolic low-loss gap filling medium, and establishes a full-coupling multi-physical field framework integrating near-field radiation, conduction transmission and nonlinear temperature stratification, and realizes near-field radiation dominated heat transfer in a solid-state system and exceeds the conduction heat flow.

The application discloses a molten metal splash protective clothing and a preparation process thereof and belongs to the field of individual protection equipment. The process comprises the following steps: weaving after blending meta-aramid 65-75%, para-aramid 15-20% and flame-retardant viscose fiber 10-15%; adopting a two-dip-two-pad method to dip and pad finishing liquid containing 5-8% nano-alumina sol, 3-5% polytetrafluoroethylene emulsion and 2-3% phosphorus flame retardant; performing super-feeding heat setting at 190-210 DEG C; compounding aluminum-coated film polyimide non-woven fabric through point-shaped hot melt adhesive; and finally sewing into clothes. The process has the advantages of process intensification, low energy consumption, more than 60% reduction of adhesive amount, air permeability greater than or equal to 50 mm / s, less than 1% of defective product rate and the like. The prepared protective clothing has the aluminum liquid impact greater than or equal to 350 g, the iron liquid impact greater than or equal to 200 g, the radiant heat transfer index RHTI24 greater than or equal to 20 s, the breaking strength greater than or equal to 800 N and the thermal stability dimensional change rate less than or equal to 2.5%, and the unity of high-grade protection and process economy is realized.

This invention provides a radiant calcining kiln, belonging to the field of calcining kiln technology. It includes a feeding device for lifting materials into the kiln; a calcining kiln for calcining the materials, comprising a preheating zone for preheating the materials, a calcining zone for calcining the materials, and a cooling zone for cooling the calcined materials; and a waste gas treatment system for treating the waste gas generated during combustion. This invention can calcine small materials with a diameter less than 20mm, solving the problems of easy nodule formation, poor permeability, and low utilization rate and resource waste in the calcination of small particles. During use, nodule formation is prevented, reducing the difficulty of production operations, and the heat from combustion can be fully utilized, achieving energy conservation and emission reduction. Through radiant heat transfer, the materials do not directly contact the flame, resulting in uniform heating, a low rate of undercooked materials, and no open flame inside the kiln, thus producing less ash and resulting in higher purity clinker.

A heating zone for a tunnel oven includes a belt configured to travel axially through the heating zone and support food product thereon. An axially-extending internal baking chamber includes a plurality of first, non-electric panels positioned above the belt and configured to selectively transfer radiant heat into the internal baking chamber. The first panels have a high emissivity surface treatment upon at least a portion thereof. A plurality of electrically heated, high intensity radiant panels are interspersed between the first panels above the belt and are configured to selectively transfer radiant heat to the internal baking chamber. The electrically heated, high intensity radiant panels are configured to output greater radiant heat than the first panels.

An aerosol-generation device includes a cavity, configured to receive an aerosol-forming substrate; a heater, configured to heat the aerosol-forming substrate received in the cavity; a heat insulation tube, arranged outside the heater, where the heat insulation tube has an inner tube and an outer tube that are arranged along a radial direction of the cavity, and a sealing space is formed between the inner tube and the outer tube; and the sealing space is filled with gas; and a heat insulation layer, arranged between the heater and the heat insulation tube. In this application, the heat insulation layer can reduce radiant heat transfer of the heater, and the heat insulation tube arranged outside the heater can further prevent the heat from being transferred outward, thereby preventing a user from feeling hot due to a high shell temperature of the aerosol-generation device, and improving user experience.

An infant care station is described herein that can include a heater element to generate radiant heat, a first reflective dish, and a second reflective dish positioned higher than a support platform of the infant care station, wherein the first reflective dish and the second reflective dish transfer the radiant heat to the support platform, the first reflective dish to focus and project the radiant heat on the second reflective dish.

The utility model relates to the field of pile foundation engineering in permafrost regions, and particularly discloses an assembly type anti-freezing pile pulling foundation for overhead transmission lines in permafrost regions, which comprises a strip-shaped base, a regular conical upright post, a heat insulation plate and a bearing platform which are sequentially arranged from bottom to top, the upper part of the regular conical upright post is a hollow circular truncated cone, and the lower part of the regular conical upright post is a hollow cylinder; the top end of the regular-cone-shaped stand column is sequentially connected with a heat insulation plate and a bearing platform through bolts, the pile bottom is connected with a strip-shaped base through a flange, the bearing platform and the strip-shaped base are each of a prefabricated assembly type structure, and the heat insulation plate is an asbestos plate. The pile foundation is a hollow body and is light in weight, the regular-cone-shaped stand columns can fundamentally reduce tangential frost heaving force, so that upward pulling displacement of the pile body is reduced, the heat insulation plates can effectively prevent radiation heat from being transmitted to soil around the pile in warm seasons, the frozen soil upper limit of the soil around the pile is improved, the stability of the soil around the pile is enhanced, meanwhile, all the components can be flexibly disassembled and assembled, and construction is convenient. Construction is fast and convenient, and application and popularization are facilitated.

The invention relates to a near-field radiant heat transfer system filled with artificial hyperbolic metamaterials. The system comprises an emitter, a receiver and a filling medium, wherein the filling medium is arranged between the emitter and the receiver; the filling medium is provided with an artificial hyperbolic metamaterial, and the artificial hyperbolic metamaterial is a potassium permeable silicon dioxide nano porous matrix filling material; the system adopts a fully-coupled multi-physical field framework integrating near-field radiation, conduction transmission and nonlinear temperature stratification. According to the invention, a potassium-permeable silicon dioxide nano-porous matrix filling material is used as a hyperbolic low-loss gap filling medium, and a fully-coupled multi-physical field framework integrating near-field radiation, conduction transmission and nonlinear temperature stratification is established, so that heat transfer dominated by near-field radiation and heat flow exceeding conduction are realized in a solid-state system.

A clamping system has a workpiece clamp (102) having a platen (108) to support a workpiece (106) and heating elements (118) for heating the platen (108) to a platen temperature. A cooling plate (122) has cooling features to cool to the cooling plate. A vacuum chamber (128) defines a chamber volume between the platen (108) and the cooling plate (122). One or more radiation shields (140) within the chamber volume (128) can limit a radiative heat transfer between the platen (108) and the cooling plate (122). A vacuum source (134) and a gas source (142) are selectively fluidly coupled to the chamber volume. A controller (156) controls the platen (108) temperature in both a high and a low temperature regime by controlling a pressure within the vacuum chamber (128) through the vacuum source (134) and gas source (142) to control a heat transfer between the platen (108) and the cooling plate (122).

A fuel filter heating device comprising: an exhaust pipe (4) through which exhaust gas produced by an internal combustion engine flows, a heat transfer medium (21) which is located near a fuel filter (10), to receive radiant heat transmitted from the exhaust pipe, and to transfer the radiant heat to the fuel filter (10) upon contact, and a temperature-sensitive actuator (24) for moving the heat transfer medium (21) in a selected direction depending on the temperature of the fuel in the fuel filter (10), so that the heat transfer medium (21) contacts the fuel filter (10) to heat the fuel in the fuel filter (10), or so that the heat transfer medium (21) is separated from the fuel filter (10) to prevent heat transfer between them.

Turbine exhaust housing (40), comprising: a frame (42) made of a material with a temperature limit below an operating point of a gas turbine engine (10), wherein the frame (42) comprises the following: an outer ring (54); an inner ring (56); and a plurality of struts (52) connecting the outer ring (54) and the inner ring (56); a casing (46) made of a material with a temperature limit above the operating point of the gas turbine engine (10), wherein the casing (46) comprises a ring-strut-ring structure lining the flow path; and a heat shield (80) arranged between the frame (42) and the cladding (46) to inhibit the transfer of radiated heat between the frame (42) and the cladding (46); the heat shield (80) has: a first inner heat shield segment (80D) arranged between the inner ring (56) of the cladding (46) and the inner ring (50) of the frame (42), and attached to the inner ring (50) of the frame (42); and a second inner heat shield segment (80E) arranged between the inner ring (56) of the cover (46) and the inner ring (50) of the frame (42) and attached to the inner ring (56) of the cover (46); and wherein the first inner heat shield segment (80D) and the second inner heat shield segment (80E) are separated from each other.

The invention discloses a coaxial double-rotational-flow combustion chamber nozzle structure with a vacuum heat insulation layer, and belongs to the field of aero-engines. Comprising multiple stages of rotational flow units which are coaxially arranged and used for forming a graded rotational flow air field; the at least one fuel oil nozzle is arranged on the inner side or the downstream of the multi-stage rotational flow unit and is used for spraying fuel oil into the rotational flow air field; the vacuum heat insulation cavity is arranged on the periphery of the fuel nozzle; wherein an air exhaust hole is formed in the vacuum heat insulation cavity, and the air exhaust hole is sealed to enable the vacuum heat insulation cavity to keep a high-vacuum state, so that radiant heat transfer from a high-temperature environment of a combustion chamber to the fuel nozzle is effectively blocked. Heat radiation of flames of a combustion chamber to fuel oil in the nozzle is reduced through the vacuum heat insulation characteristic, the heat resistance of the nozzle is improved, and coking of the fuel oil in the nozzle is restrained.

This invention provides a method for predicting the temperature of a steel slab, which allows for the determination of the overall heat absorption rate without measuring the temperature of the steel slab inside the heating furnace, and enables the prediction of the temperature of the steel slab inside the heating furnace from the initial stages of operation using the determined overall heat absorption rate. [Solution] A method for predicting the temperature of a steel slab in a heating furnace, wherein the total heat absorption rate is determined using the amount of radiant heat transfer from the inner wall of the heating furnace to the steel slab, the amount of radiant heat transfer from the combustion gas to the steel slab, and the amount of convective heat transfer from the combustion gas to the steel slab, and the temperature of the steel slab in the heating furnace is predicted using the total heat absorption rate.

A shuttle kiln according to certain aspects includes at least one flue channel and multiple flue risers in fluid communication with the flue channel, and at least one shuttle defining multiple exhaust shafts arranged above the multiple flue risers, wherein at least one radiation blockers is arranged above outlet ports of the at least one shuttle. Such a configuration blocks line-of-sight radiant heat transfer between (i) heated surfaces above the shuttle within the kiln housing and (ii) outlet ports of the exhaust shafts, thereby enhancing radiant heat retention and reducing temperature variability within a kiln cavity of the shuttle kiln.

The present application relates to the field of automation control technology, specifically to a four-corner tangential reheating steam temperature adjustment method based on 1000MW unit tower furnace, comprising the following steps: obtaining wind speed density calculation momentum sum and tangential circle eccentricity evaluation quantity, generating regulation and control instruction in combination with diameter and furnace length to obtain radiation distance quantity, calculating latent heat absorption reference quantity according to the instruction and determining flow state boundary positioning quantity in combination with sensible heat reduction quantity, extracting resistance parameter to establish control valve end point pressure drop quantity, and converting temperature reduction water flow and flow capacity quantity through enthalpy drop total amount. In the present application, the tangential circle eccentricity is depicted through the momentum system and the radiation heat transfer distance is mapped, the regulation and control reference is established, the flow rate and the sensible heat positioning flow state boundary are associated, the dynamic pressure drop is solved to establish the pressure characteristic, the enthalpy drop offset is calculated to determine the temperature reduction water demand, the combustion heat load distribution and the water injection execution are closely coupled, the uneven heat absorption of the heating surface is corrected, the adjustment period is shortened, the steam temperature is stabilized, and the metal loss is reduced.