169 results about "Radiant cooling" patented technology

High Performance cooling systems for cooling a heat source is disclosed. The cooling systems can be air cooling system, liquid cooling system, or space radiation cooling system. Air cooling system includes at least high performance cold plate or cold plates, plenum, liquid pump, and liquid to air heat exchanger. Liquid cooling system includes at least high performance cold plate or cold plates, plenum, liquid pump, and liquid to liquid heat exchanger. Space radiation cooling system includes at least high performance cold plate or cold plates, plenum, liquid pump, and space radiator. Several coolant fluids are available and can be used as a primary system coolant depending on the application.

The invention discloses a novel supercritical carbon dioxide coal-fired boiler. The novel supercritical carbon dioxide coal-fired boiler comprises a horizontally arranged hearth, a wall-attached radiation cooling heating surface system, a superheater and reheater system, smoke gas coolers and air preheaters, wherein the wall-attached radiation cooling heating surface system is arranged in the hearth in a graded and segmented mode, the superheater and reheater system is arranged in a horizontal flue in a graded mode, and the smoke gas coolers and the air preheaters are arranged in a tail flue in a graded and flow-dividing mode. The wall-attached radiation cooling heating surface system greatly reduces the length of a high-temperature working medium pipeline, and reduces the number of needed high-temperature convection heating surfaces and high-temperature alloy pipelines, thereby reducing fixed investment of equipment. The superheater and reheater system combines with turbines which are arranged in a multi-stage and multi-axis mode, so the air inlet temperature and the turbine efficiency of the turbine of each grade can be improved. The tail flue comprises an upper-grade smoke gas coal economizer and a lower-grade smoke gas coal economizer which are used for heating a new working medium to meet requirements of an inlet of a primary wall-attached radiation cooling heating surface of the boiler, and the upper-grade air preheater and the lower-grade air preheater are used for heating combustion air, so that the special requirements for hearth combustion and heat transfer of the supercritical working medium circulation are met.

A heat exchange system includes a first heat exchanger that radiates heat of at least a cooling cycle, a cooler circuit in which a coolant for a heat-emitting device flows, a plurality of heat exchangers that are connected to the cooler circuit and radiate heat of the coolant, and a blower that sends air to the first heat exchanger and the plurality of heat exchangers to cool. The plurality of heat exchangers are arranged in a blowing direction of the blower, and separately radiate heat of the cooler circuit. The heat exchanger, which is disposed on the windward side, of the plurality of heat exchangers is thermally connected to the first heat exchanger, and the heat exchanger disposed on the windward side radiates heat by itself and also radiates heat through the first heat exchanger.

A preheating type solar ejection-compression combined refrigerating system comprises a solar hot-water loop, an ejection refrigerating fluid loop, an electric compression refrigerating fluid loop and an air conditioning water loop. The ejection refrigerating fluid loop is connected with the electric compression refrigerating fluid loop through a preheater. The ejection refrigerating fluid loop is formed by a generator, an ejector, a jet condenser, a jet evaporator, a work medium pump, a preheater and a second pipeline in a series connection mode. The electric compression refrigerating fluid loop is formed by a preheater, a compressing condenser, a throttle mechanism, a compressing evaporator, a compressor and a third pipeline in a series connection mode. According to the preheating type solar ejection-compression combined refrigerating system, heat of condensation of refrigerating fluid in exhaust gas of the compressor in the electric compression refrigerating fluid loop is recycled and used for preheating the refrigerating fluid entering the generator, the design heat exchange area of the generator of an ejection refrigerating system and the condenser of a compression refrigerating system can be decreased, and the system refrigerating capacity of the solar unit heat collection area is improved. The preheating type solar ejection-compression combined refrigerating system is suitable for air conditioning systems of radiant cooling, fan coils and the like.

The invention provides a porous radiation refrigeration film and a preparation method thereof. The method comprises the following steps of: (1) dissolving a material having infrared electromagnetic wave radiation capability corresponding to a radiation atmosphere window, with a first solvent to form a uniform mixed solution; (2) forming the mixed solution on a substrate; and (3) forming a second solvent which does not dissolve the material on the substrate on which the mixed solution is formed to obtain the porous radiation refrigeration film. The second solvent and the first solvent are mutually soluble. The porous passive radiation refrigeration film is prepared through a phase separation method; the preparation process of the porous passive radiation refrigeration film is simple; the film forming speed of theporous passive radiation refrigeration film is high; the micron pore diameter of the radiation refrigeration film can be accurately controlled, so that radiation cooling intensity can be adjusted, the reflectivity of the radiation refrigeration film to visible light is effectively adjusted, and a single-layer all-day radiation cooling function is achieved; the film preparedthrough the method can achieve the functions of indoor temperature reduction, refrigeration, freezing, thermoelectric power generation and the like, and therefore, the purposes of energy conservationand emission reduction are achieved.

The invention provides a method for identifying thermal defects by means of an auxiliary heat source under the condition of small temperature difference and relates to an identification method of thermal defects. The invention solves the problem that the current infrared detecting method can only be used for detecting the building thermal defects in the regions with the indoor and outdoor temperature difference of more than 10 DEG C and also solves the problem that the existing thermal defect detecting methods can be influenced by solar radiation and outdoor conditions. The method comprises the following steps: firstly, using the auxiliary heat source to irradiate the inner surface of a building wall and heat the inner surface of the wall body, stopping irritation when the temperature of the inside of the wall body rises; secondly, using a thermal infrared imager to detect the temperature field distribution of the inner surface of the wall body, obtaining a thermal infrared spectrum showing the temperature field distribution of the inner surface; and finally analyzing the temperature difference shown in the thermal infrared spectrum to obtain the thermal defects of the building. The method of the invention is applicable to the thermal defect detection of the inner walls and insulated floor of buildings and can also be used for the pipe locating in non-heating seasons of the floor radiant heating system and the pipe locating in non-cooling seasons of the radiant cooling system.

A method for creating condensation in an accelerated weathering device, the method having the step of creating condensation in a weathering chamber of an accelerated weathering device by cooling a surface in the chamber to a temperature that is colder than the dew point of the air inside the chamber. An accelerated weathering device having a weathering chamber and at least one radiant cooling tube that is either touching or less than about 2.5 centimeters away from at least one surface in the weathering chamber so that by passing a fluid through the at least one radiant cooling tube, the temperature of the a least one surface can be decreased as a result of the radiant cooling from the radiant cooling tube.

The invention discloses a radiation cooling film which is formed by mixing ceramic particles, an organic solution and a curing agent, mixing the ceramic particles with an organic curing precursor solution, and curing, a micro-nano photon structure array is formed on the surface of the film, and the micro-nano photon structure array comprises a plurality of arrayed micro-nano photon structure elements. The invention further discloses a preparation method and application of the radiation cooling film. The film has the reflectivity of 95% in the sunlight band and the radiance of 96% in the atmospheric window band, can be lower than the ambient environment by 10 DEG C at most under the illumination condition, and also has good flexibility and strength and excellent hydrophobicity. The radiation cooling film is prepared in a low-cost and large-area manner by adopting a multi-etching double-spin-coating vacuum thermocuring process. The radiation cooling film is applied to the aspects of human body wearable cooling, cooling umbrellas and device heat dissipation, and a cooling method is achieved by removing heat from the surface and the interior of a main body in a heat radiation mode.

The invention relates to a cooling-heating-integrated double-capillary-tube-layer phase-change energy storage floor terminal device and an application system. The cooling-heating-integrated device combining a traditional capillary tube radiant cooling / heating with the phase-change energy storage technology comprises a ground source heat pump, a water distributor, a water collector, a solar heat collector, an auxiliary electric heater and an energy storage floor. The energy storage floor comprises a floor surface layer, a concrete layer, a heat storage phase-change material layer, a cement mortar screeding layer, a cool storage phase-change material layer, a reflecting film and an insulating layer from top to bottom, wherein the heat storage phase-change material layer is used for storing heat at night in winter, the cement mortar screeding layer is used for separating the heat storage phase-change material layer from the cool storage phase-change material layer and facilitates laying of the phase-change material layers, the cool storage phase-change material layer is used for storing cool at night in summer, the reflecting film is used for reflecting and blocking heat to decrease heat exchange between the cool storage phase-change material layer and the insulating layer, and the insulating layer is made of materials low in heat conductivity and small in density and used for further decreasing heat loss of floor structural layers. Capillary tubes are laid in the heat storage phase-change material layer and the cool storage phase-change material layer to be used for supplying hot water and cool water respectively.

The invention relates to a radiant cooling system of the technical field of heating ventilation and air conditioning, in particular to an anti-condensation control system and method for the radiation tail end of a grating pipe network. The anti-condensation control system for the radiation tail end of the grating pipe network comprises a measuring unit, a computing control unit and an execution unit, and is characterized in that the output end of the measuring unit is connected with the input end of the computing control unit, the output end of the computing control unit is connected with the input end of the execution unit, indoor environment variables are measured by the measuring unit in real time, the computing control unit receives the real-time data signals of the measuring unit and carries out computing processing, a real-time decision is made according to a control algorithm, control instructions are generated, control signals are output to the execution unit, and therefore anti-condensation control is achieved.

A device serves for controlling temperature of an optical element provided in vacuum atmosphere. The device has a cooling apparatus having a radiational cooling part, arranged apart from the optical element, for cooling the optical element by radiation heat transfer. A controller serves for controlling temperature of the radiational cooling part. Further, the device comprises a heating part for heating the optical element. The heating part is connected to the controller for controlling the temperature of the heating part. The resulting device for controlling temperature in particular can be used with an optical element in a EUV microlithography tool leading to a stable performance of its optics.

The invention discloses a winter and summer temperature adjusting device based on radiation cooling and solar energy utilization and a construction method of the winter and summer temperature adjusting device. The winter and summer temperature adjusting device is constituted by a radiation cooling structure and a heat absorbing layer; the radiation cooling structure is composed of a reflecting layer, an emission layer and a wind screen, the emission layer is arranged between the reflecting layer and the wind screen, the wind screen is composed of an air layer and a covering material layer, andthe air layer is located between the emission layer and the covering material layer; the reflecting layer reflects sunlight out, and the emission layer emits heat in a temperature-adjusted medium outin an infrared ray mode; and the heat absorbing layer is composed of a solar heat-absorbing material layer and a metal plate, and the metal plate is located between the solar heat-absorbing materiallayer and the reflecting layer of the radiation cooling structure and is closely combined with the radiation cooling structure. The winter and summer temperature adjusting device can provide passive temperature decreasing and increasing for certain occasions and equipment, and achieves the energy saving effect.

The invention is a substitute ventilation radiator belonging to heating and ventilating air condition refrigerating field. The invention includes a radiator, substitute ventilator. The radiator is arranged on the board at one side of the substitute ventilator, the board of the substitute ventilator is used as the bottom board, and the radiator and the substitute ventilator are arranged together back to back. It has characters of substitute ventilation and radiation cooling and heating technology, it can supply fresh wind to room with substitute method, eliminates the humid charge in the room, satisfies the demands of people for fresh air; it can cool or heat the room with radiator, bears the sensible cool or heat charge in the room, upgrades the comfort level and the air quality in room, saves the air condition consumption and the construction space.

An electronic device includes a cover for one or more heat generating components, with the cover providing at least a combined conductive, convective, and radiant cooling for the heat generating components while maintaining the device within a prescribed temperature range. Conductive cooling is realized by providing thermal coupling between each of two or more depression regions in the cover and one or more heat generating components. Appropriate placement of air inlets and outlets through the cover provides convective cooling of the heat generating components and the thermally coupled depression regions. Heat from the heat generating components thermally coupled to one depression region is effectively isolated from heat generated by other heat generating components thermally coupled to another adjacent depression region at least in part via the air outlets through an interior region between the two adjacent depression regions. Radiant cooling can also be improved by increasing the emissivity of the device cover material.

The invention discloses a control method and system of a radiant cooling air-conditioning system. The method includes the steps that the indoor temperature Te,i and wet-bulb temperature Tw,i of each opened room at a radiant cooling tail end and the dry-bulb temperature Tf,i of the surface of each cold radiation panel are detected; according to the detected indoor temperatures Te,i and the detected wet-bulb temperatures Tw,i, the dew-point temperatures Tde,i of the rooms are calculated; according to the detected indoor temperatures Te,i of the rooms, the detected dry-bulb temperatures Tf,i of the surfaces of the cold radiation panels and the calculated dew-point temperatures Tde,i, the frequency of a compressor is regulated so that the supply water temperature Tg,i of the cold radiation panel in each room can meet the formula that Tg,i= Tde,i+K, wherein K is a preset temperature regulation value; and if Tf,i>= Tde,i+0.5 DEG C, K=0.5 DEG C, and if Tf,i< Tde,i+0.5 DEG C, K=0.06*Te,i. By means of the control method and system of the radiant cooling air-conditioning system, on the premise of guaranteeing the cold supply quantity of the radiant cooling rooms, the hidden trouble of condensation of the cold radiation panels is effectively eradicated, and therefore the problem that application and popularization of radiant cooling are limited is solved.

The invention discloses a spacecraft thermal control system directly utilizing sunlight, which comprises a sunlight buncher, a sunlight branching device, a light-guide fiber, a heating unit and a space radiant cooling device. The spacecraft thermal control system directly converges sunlight on the sunward side of spacecraft to be served as thermal control energy of the spacecraft, utilizes light energy produced by converged sunlight to heat a spacecraft light heating device or a single machine, simultaneously reduces the increased temperature caused by sun radiation on the sunward side, solves the problem of low power consumption space thermal control, reduces the thermal control electric power of the spacecraft, also reduces corresponding solar battery array area and accumulator capacity, improves the energy utilization of sunlight, and reduces the design difficulty of spacecraft thermal control and energy equal division systems. The spacecraft thermal control system solves the technical difficulty of thermal control required by navigation of the spacecraft in the solar system, and has certain effects on improving the thermal control efficiency of the spacecraft and the space exploration range, and reducing the resource cost for navigation.

The present invention relates to a hybrid device for cooling, which is appropriately small for home use, which produces cold water while conserving energy by using hot water which is obtained from waste heat from cogeneration or from solar heat, which prevents condensation on a floor or a ceiling if dew forms on a surface when radiant cooling, and which can selectively cool or heat the floor using an existing hot water heating equipment. The hybrid device for cooling comprises: a dehumidification cooling apparatus further comprising a dehumidification cooling housing which is divided into a dehumidification cooling passage and a regeneration passage, a dehumidification rotor, which is rotatably installed across the dehumidification cooling passage and the regeneration passage, for removing moisture in the air which is introduced to the dehumidification cooling passage, a heat exchanger for heating the air that passes through the regeneration passage for regenerating the dehumidification rotor, a cooler for producing cold water by penetrating the air, from which moisture is removed by passing through the dehumidification rotor, through water which is sprayed by a streaming device and using the latent heat from water evaporation; and an air blower for forcibly blowing the air inside the dehumidification cooling passage and the regeneration passage; and a cold water supply device for collecting the cold water which is produced in the cooler and supplying same so as to circulate through an air-conditioned space.

A device and method for cooling an animal, operating to reduce heat absorption by reflecting sunshine and heat away from the animal, reducing insulation uptake, and shielding the animal from ultraviolet rays and other radiation, while providing adequate ventilation to support evaporative and / or radiant cooling. An external fabric layer of woven plastic or synthetic stranded material with a metallic coating that provides high reflectivity for a wide bandwidth of radiation is combined with an interior fabric layer capable of rapid evaporation of liquids, which may be moistened artificially or may absorb perspiration for transpiration and cooling effects.

The invention discloses an evaporative cooling high-temperature cold water radiant cooling and solution desiccant composite vehicle-mounted air conditioner system which is installed on the top of an automobile. A unit shell is internally provided with a surface air cooler, an evaporative cooling high-temperature cold water unit, a suction fan, a solution dehumidifier, a direct evaporation cooler, an air supplying fan and a fresh air port leading into a carriage in the driving direction of the automobile from front to back in sequence, a filtering net is arranged in the front of the surface air cooler, the fresh air port is communicated with air supplying pipelines arranged on the two sides of the top inside the carriage, the evaporative cooling high-temperature cold water unit is communicated with a radiant plate, a solution generator is arranged above an engine and connected with an engine water jacket through a heat pipe, and the solution dehumidifier is connected with the solution generator respectively through a solution returning pipe and a solution supplying pipe. The air conditioner system is the combination of the radiant plate and a fresh air system, the quality of indoor air is improved, the fracture surface of an air pipe is reduced, and the using space inside the carriage is increased.

The invention discloses a waste heat boiler for a power generating system based on tail gas waste heat of a pot-type carbon calcining furnace, and the waste heat boiler is provided with a support frame, wherein the top of the frame is provided with a boiler barrel steam pocket for steamwater separation, and a smoke inlet and a smoke outlet are respectively arranged on the bottom of the frame; a radiation cooling chamber and a heat exchange device are successively arranged between the smoke inlet and the boiler barrel steam pocket, an evaporator and an economizer are successively arranged between the boiler barrel steam pocket and the smoke outlet, and smoke is guided out successively through the smoke inlet, the radiation cooling chamber, the heat exchange device, the evaporator, the economizer and the smoke outlet; and the radiation cooling chamber and the heat exchange device are respectively communicated with the boiler barrel steam pocket. The waste heat boiler for the power generating system based on the tail gas waste heat of the pot-type carbon calcining furnace provided by the invention is designed by fully considering the characteristics of the smoke discharged by the pot-type carbon calcining furnace. The waste heat boiler provided by the invention has the advantages of not only high heat exchange efficiency, but also lower manufacturing cost and higher popularization value.

The invention provides an energy recovery method for preparing sponge iron by gasification of high-pressure pulverized coal and a system thereof. In the energy recovery method for preparing sponge iron through a coal-based shaft furnace process and the system thereof, oxygen, pulverized coal and water vapor are sent into a high-pressure pulverized coal gasification furnace for completing high-temperature pure oxygen gasification to generate synthesis gas with CO and H2 in a relatively high ratio; the synthesis gas is successively cooled to a specific temperature through a two-stage heat recovery plant after radiant cooling, and sulfur and nitrogen are removed from the synthesis gas through a dust remover and a gas purifier; the purified high-pressure low-temperature synthesis gas absorbs the sensible heat of coal gas through a secondary heat recovery plant and then is heated to a specific temperature and mixed with treated and recovered shaft furnace coal gas in a combustion chamber; the heated coal gas enters the shaft furnace and is reacted with sent-into iron ore to generate the sponge iron and the shaft furnace coal gas. The invention has the advantages that the gasification efficiency of coal is high, the invention is suitable for coal types of different tenors, and the invention greatly improves the recovery rate of the shaft furnace coal gas, simplifies the system for utilization of the shaft furnace coal gas, and synchronously realizes zero emission of sponge iron manufacture.

An entrained flow gasifier designed as a component for an Integrated Gasification Combined Cycle plant of optimized efficiency is provided. The raw gas initially flows through a waste heat unit designed as a radiation cooler and subsequently flows through a full water quench. This results in a higher ratio of steam in the raw gas, which decreases the medium-pressure steam supply before the water-gas shift and thus improves efficiency in IGCC plants with CO2 separation.

The invention discloses a lunar soil source thermoelectric generator, which comprises a thermoelectric generation module and a power storage module, wherein the thermoelectric generation module is connected with the power storage module; the lunar soil source thermoelectric generator is characterized in that the thermoelectric generation module comprises a radiant cooling plate, a thermoelectric generation sheet and a self-circulating heat pipe; the radiant cooling plate for cooling is attached to a cold end surface of the thermoelectric generation sheet; a hot end surface of the thermoelectric generation sheet is connected with the self-circulating heat pipe; the self-circulating heat pipe is buried into lunar soil, absorbs heat of the lunar soil and transmits the heat to the hot end surface, in contact with the self-circulating heat pipe, of the thermoelectric generation sheet, so that the hot end surface of the thermoelectric generation sheet is kept at high temperature; and furthermore, due to the radiant heat transfer effect of the radiant cooling plate and the moon space, the cold end surface, attached to the radiant cooling plate, of the thermoelectric generation sheet is kept at low temperature, and a stable temperature difference is finally formed between the hot end surface and the cold end surface of the thermoelectric generation sheet and is stored into a storage battery through thermoelectric generation, thereby ensuring efficient lunar exploration activities at night.

A furnace of controlled heating and treatment of material using infrared radiation. The furnace is capable of continuous infrared treating of material with consistent radiation being applied to the material, ease of access to the furnace for maintenance cleaning and repair, excellent control of radiant cooling of the material to be treated, and ease of maintenance of a volatile component condenser.

A method of assembling a radiant cooler is provided. The method includes providing a vessel shell that includes a gas flow passage defined therein that extends generally axially through the vessel shell, coupling a plurality of cooling tubes and a plurality of downcomers together to form a tube cage wherein at least one of the plurality of cooling tubes is positioned circumferentially between a pair of circumferentially-adjacent spaced-apart downcomers, and orienting the tube cage within the vessel shell such that the tube cage is in flow communication with the flow passage.

A wind source heat pump system capable of conducting radiant cooling and heating by using phase transformation energy of compressed steam comprises a compressor, a connecting pipe and a four-way valve. The compressor is connected with an outdoor fan, an outdoor coiler and a capillary coiler buried in an indoor floor through the four-way valve. A main machine power supply and a control panel are installed in an outdoor unit and connected with the compressor, an electronic expansion valve, a floor temperature sensing and control device, the four-way valve, an indoor temperature sensing device and a controller through an electric power line and a control line. Energy can be saved by about 55% during refrigerating through this method, and an energy-saving effect is remarkable. More important, comfort level of a person is greatly improved, and a use effect is good. Energy is saved by about 60% during heating, and high popularizing value is obtained.

The invention discloses a solar solution dehumidification radiation air conditioning system and relates to the technical field of air conditioning. The solar solution dehumidification radiation air conditioning system includes a solar energy solution dehumidification fresh air system and a capillary network radiant cooling and heating system. An auxiliary heating device is arranged in a layered heat insulation water tank inside the solar energy solution dehumidification fresh air system, the two ends of the layered heat insulation water tank are connected with a first water pump and a solar thermal collector sequentially through a water pipe, the two ends of the layered heat insulation water tank are connected with a second water pump and a first heat exchanger sequentially through a waterpipe, and the two ends of the first heat exchanger are connected with a solution pump, a solution regeneration tower, an electric three-way valve, a concentrated solution tank, a first solution pump,a second heat exchanger, a solution dehumidification tower, a second solution pump and a dilute solution tank. An air cooled heat pump inside the capillary network radiant cooling and heating system,a capillary network and a third water pump are sequentially connected through a water pipe. The solar solution dehumidification radiation air conditioning system is available all year round, can independently control the indoor temperature and humidity, can scientifically and effectively improve energy utilization rate and reduce environmental destruction.

The invention provides a space heat pipe radiator based on a loop heat pipe, which belongs to the technical field of spacecraft thermal control. A problem that the imaging quality of an optical instrument in a spacecraft is affected due to large vibration of a space radiator based on fluid loop in the prior art is solved. According to the invention, the space heat pipe radiator based on the loop heat pipe mainly comprises a radiant cooling panel, a crisscross heat pipe network and a loop heat pipe, wherein a plurality of longitudinal grooves are stamped in the internal surface of the radiant cooling panel; the crisscross heat pipe network comprises a plurality of longitudinal heat pipes and a plurality of transverse heat pipes; the longitudinal heat pipes correspond to the longitudinal grooves one to one; the longitudinal heat pipes are fixed in the longitudinal grooves and in close contact with the inner walls of the longitudinal grooves; the transverse heat pipes are vertical to the longitudinal heat pipes and fixed on the internal surface of the radiant cooling panel; and a condenser of the loop heat pipe is fixed in an exposed area of the internal surface of the radiant cooling panel. The space heat pipe radiator based on the loop heat pipe, provided by the invention, has the advantages of high heat transmission capacity, high temperature control accuracy, high reliability and small vibration and substantially has no influence on the imaging quality of the optical instrument in the spacecraft.