10469 results about "Cold air" patented technology

An improved solution for cooling a data center is provided. In an embodiment of the invention, a data center design that combines physical segregation of hot and cold air streams together with a data hall variable air volume system is provided. The invention is a data center design that resolves air management issues of re-circulation, bypass and load balance. Bypass is airflow supplied by the cooling units that directly returns without cooling servers. Recirculation airflow is server discharge warm air that returns directly without being cooled. Load balance is supplying the required server airflow. An embodiment includes physical segregation of cold and hot air streams and by providing variable air volume to match server load. Air segregation is done by enclosing the hot aisle end and above the cabinets. The air conditioning system provides variable air volume to the data hall (cold side) to meet server demands. The cooling plant consists of variable-air-volume air-cooling system, which cools air by air free cooling (economizer) and is supplemented with mechanical cooling in the warmer seasons.

In a heat dissipating apparatus for an automotive LED lamp, the automotive LED lamp includes an automotive lamp set, a heat dissipating module, a plurality of LEDs, and a reflecting unit. The heat dissipating module is wrapped to form an insulation circuit for separating heat energy and electric power of the insulation circuit and heat dissipating module. The LED is electrically connected to the insulation circuit, and a main base of the LED installs a metal conducting plate for conducting the heat produced by the LED to the heat dissipating module. The reflecting unit is installed in the automotive lamp set, so that the heat dissipating module can use a cold air or a liquid coolant as the heat dissipating medium for dissipating heat, preventing a drop of light output caused by an overheat, and avoiding damages to the LED to extend the life expectancy of the automotive LED lamp.

A cooling method and system is disclosed which utilizes vortex tubes to generate and direct cold air over heat-generating components of an electronic system.

The invention discloses a refrigeration control method, a control device and a variable frequency air conditioner. The method comprises steps as follows: detecting the indoor temperature in the refrigeration operation process, calculating the indoor temperature difference, and performing PID (proportion integration differentiation) operation on room temperature according to the indoor temperature difference to obtain a first target frequency; comparing the indoor temperature with a set comfortable temperature; controlling a compressor according to the first target frequency if the indoor temperature is not lower than the comfortable temperature; if the indoor temperature is lower than the comfortable temperature, detecting the coil temperature of an evaporator of the variable frequency air conditioner, calculating the temperature difference between the coil temperature and a set coil target temperature to obtain a coil temperature difference, and performing PID operation on the coil temperature according to the coil temperature difference to obtain a second target frequency; controlling the compressor according to the smaller one of the first target frequency and the second target frequency. With the adoption of the refrigeration control method, the control device and the variable frequency air conditioner, the problem about refrigeration comfortlessness caused by cold air blown by an existing variable frequency air conditioner can be solved.

Supercooling refrigeration being a method of enhancing the quality of food frozen other than the quick freezing method is realized by simple construction, and there are provided a refrigerator and method of refrigeration capable of realizing high-quality freezing by simple construction. The refrigerator is one capable of food storage utilizing cold air generated by cooler (3), comprising supercooling case (81) adapted to hold stored food in a supercooling state such that freezing does not occur even at its freezing point or lower temperature for at least a given period of time. The supercooling case (81) consists of, for example, the downside case of up-and-down two stage case disposed in switching chamber (200) capable of switching to multiple temperature zones.

A refrigerator has a freezing chamber at the bottom, and a refrigerating chamber over the freezing chamber. The refrigerator includes an ice making unit and an ice dispenser mounted in a refrigerating chamber door that allows ice to be dispensed without opening the door. A sub-PCB is mounted in the refrigerating chamber door for controlling operations of the ice making unit and the dispenser. A cold air supply duct supplies cold air from a cold air supply unit to the ice making unit.

The present invention relates to a turbocharged internal combustion engine (ICE) system having fast response to increased power demand and reduced response time lag. The system includes a vortex tube for delivering cold air into the turbocharger compressor where it may be used to cool the impeller, and/or accelerate the impeller rotational speed, and/or favorably shift the compressor surge line at low speeds and high loads. Cold air from the vortex tube may be also used to operate an ejector pump in the intake duct which further compresses intake air and increases engine charge weight during periods of high power demand. In addition to increasing engine output power, delivery of cold air into engine intake also reduces engine pre-ignition (knocking) thereby reducing emissions. The invention also relates to a method for operating a turbocharged internal combustion engine.

A drying control method and apparatus of a washing and drying machine, in which cooling water dropped from a condensation duct to a tub accelerates the condensation of moisture contained in circulated air so as to improve condensing capability, a cold air drying time is differently set according to load so that when the load is small, a drying time is shortened, and the drying of laundry is rapidly performed, a power consumption rate is minimized, or a cooling water consumption rate is minimized according to user's desire, and a drying operation is controlled using a difference between a temperature of air and a temperature of cooling water so that the drying operation is efficiently performed according to load conditions so as to improve the drying capability.

An apparatus to refrigerate the cargo space of delivery vehicles. It provides an environmentally friendly alternative to conventional mechanical a/c and refrigeration units. Cooling is provided by controlled evaporation of a liquefied gas such as CO.sub.2 or nitrogen. Defrost and heating requirements, if needed, are provided by hot engine coolant or by electric heaters powered from the vehicle electrical system. Airflow for the evaporator and for circulation in the temperature controlled space is provided by a blower which is mechanically or electrically driven from vehicle power. This invention can also be applied to multi-temperature control applications. The apparatus is compact and is particularly suited for small inner city delivery vehicles. FIG. 1: The sketch shows an inner city delivery truck for which this invention is most suitable. Refrigerated goods are placed in roller cages that are designed to maximize cargo hauled by use of roller cages that extend to within 2 inches of the ceiling. The evaporator section of this invention is mounted at or near the front wall of the truck and is separated from the cargo by a vertical bulkhead. The conditioned air is delivered at the bottom of the truck to avoid top freeze of perishable cargo that is in close proximity to the ceiling. FIG. 2: This shows the piping schematic and is similar to the invention described in U.S. Application Serial No. 60/238,929 (the '929 application) incorporated herein by reference. FIG. 2 shows the engine coolant coil located ahead of the CO.sub.2 coil in the direction of airflow. This prevents the coldest air from coming in contact with the engine coolant--in the cooling mode the air leaving the CO.sub.2 coil can be as low as -50.degree. F. for frozen load applications and this may cause the engine coolant to start freezing. Arrangements must be made to circulate air between the two coils in defrost mode. One means to accomplish this is to place a damper at the outlet of the evaporator section and run the fans. The damper would be closed during defrost. Another method is to place the engine coolant coil on the discharge side of the CO.sub.2 coil and use a cut-out switch if the engine coolant temperature drops below a predetermined value. In this arrangement there is no need for the damper arrangement as the heat will rise to melt any frost on the CO.sub.2 coil. If electric heat is used for defrost and heating freezing of the engine coolant is not a concern and the heaters can be fastened to the discharge side of the CO.sub.2 coil. An electric stand-by mode can be provided to power the system for cooling, heating and defrost when the vehicle is parked with the engine off. A plug-in electrical cable can provide the power needed for the controls, the fans and for heating and defrost. The figure shows the electric heaters attached on the discharge side of the CO.sub.2 coil. Operation: Detailed description is in the '929 application except for the following: The evaporator section is designed for vertical installation to maximize cargo space. Air is discharged at the bottom but may be a conventional top discharge if needed for specific applications. Conventional methods can be used to provide defrost and heating. If engine coolant is used for a heat source, it is preferable to thermally isolate the CO.sub.2 coil from the engine coolant coil to avoid freezing the coolant. The evaporator blower may be located on the inlet side of the coils rather than as shown in the figures. Unique Features: 1. Absence of a conventional condensing section on the exterior of the vehicle makes this an ideal refrigeration unit for small inner city delivery vehicles. Many of the truck cabs are now almost full height (same as the truck body) and there is limited space for the condensing section. 2. Cold plates can be used and still maximize cargo cube. However, this invention has 30-40% less weight than comparable "cold plate" systems. 3. Other features are described in the '929 application.]

In the related art refrigerator, its structure for supplying water to a dispenser and water tank was complicated. In addition, since an icemaker is installed in a refrigerating chamber of the refrigerator, there is a problem in that the water supplied into the icemaker is frozen. Furthermore, if the icemaker is installed in the freezing chamber of the refrigerator in which the refrigerating chamber is formed at a lower portion thereof and a refrigerating chamber is formed at an upper portion thereof, there is another problem in that it is difficult to control the temperature in the refrigerating chamber or ice-making capability of the icemaker is lowered. The present invention is directed to a refrigerator. According to an aspect of the present invention for solving the above problems, there is provided a refrigerator including a refrigerating chamber formed at a relatively upper portion of a refrigerator body and a freezing chamber formed at a relatively lower portion of the refrigerator body, which comprises an ice-making chamber which is partitioned in the refrigerating chamber by means of insulating walls and includes an icemaker for making ice and an ice storage for storing the ice made in the icemaker, a first heat exchanger for generating cold air to regulate the temperature in the ice-making chamber, and a second heat exchanger for generating cold air to regulate the temperature in the freezing and refrigerating chambers, wherein the first and second heat exchanger are components of a heat exchange cycle. According to the refrigerator of the present invention so configured, there are advantages in that the temperature in the refrigerating chamber can be accurately controlled, the loss of cold air can be minimized and the structures for supplying water into the icemaker and the dispenser can be simplified.

The invention provides a melting furnace slag quenching dry type granulation and sensible heat recovery generating system and a method using the same and belongs to the technical field of steel metallurgy furnace slag treatment and complementary energy recovery. The melting furnace slag quenching dry type granulation and sensible heat recovery generating system provided by the invention comprisesa slag-receiving device, a high-pressure water-air pulverization furnace slag quenching and granulating device, a furnace slag slow-cooling device, a sensible heat recovery generating device and a waste gas purification treatment device. According to the invention, the melting furnace slag is quenched and granulated by utilizing the high-pressure water-air pulverization device, so that the melting furnace slag is rapidly cooled to be in a glassy state; and then through a water-cooled type vibration grid plate, the melting furnace slag in the glassy state is further subjected to heat exchange with cold air so as to facilitate the subsequent recovery of the sensible heat. By the system provided by the invention, the melting furnace slag is quenched and granulated, and the high-temperature sensible heat resource of the furnace slag is sufficiently recovered and is used for generation on the basis that the water activity quality of the furnace slag is not influenced.

In a vehicle air conditioner, each of cool air outlets is provided at an upper side of each seat at second and third seat lines from a most front seat so that cool air from an air conditioning unit is blown from the cool air outlets toward upper sides of the seats, respectively, and each of warm air outlets is provided at a lower side of each seat at the second and third seat lines so that warm air from the air conditioning unit is blown from the warm air outlets toward lower sides of the seats, respectively. In addition, each of suction ports is provided for each corresponding seat at the second and third seat lines so that air inside a passenger compartment is sucked from the suction ports to be returned to the air conditioning unit.

A portable air conditioner/beverage container includes a container having top and bottom ends, a side wall, an air intake opening, and a cool air outlet. Within the container, there is a separation wall. A first space between the separation wall and the side wall defines an air intake region. The air intake region is in fluid communication with the air intake opening. A second space between the side wall and the separation wall defines a cold substance chamber. A blower is in fluid communication with the cool air outlet. A power supply is coupled to the blower. The blower pulls air in through the air intake opening, down through the air intake region, and around the separation wall. Air flows up through the cold substance chamber, through the cool air outlet, where it is expelled onto a user.

In a vehicle air conditioning system, a cold accumulator is disposed between a downstream air side of a cooling heat exchanger and an upstream air side of a heating heat exchanger to be cooled by cold air having passed through the cooling heat exchanger. Further, the cold accumulator is disposed at the upstream air side of an air mixing door.

A refrigerator having a cold air supply device is provided. The refrigerator includes an evaporator and the cold air supply device mounted at a rear surface of a storage compartment to cover the evaporator. The cold air supply device includes a plurality of discharge holes formed in a front surface and both lateral surfaces thereof to discharge cold air, which was heat exchanged by the evaporator, toward front and lateral sides of the cold air supply device.

The invention discloses a multi-split air conditioner system. When the temperature of an indoor environment reaches the preset temperature, the multi-split air conditioner system is controlled through a controller of the multi-split air conditioner system to run in a standby-ready mode, a refrigerant circulates between a compressor and an air and liquid separator, the capacity output of the compressor is controlled, and the pressure of a refrigerant outlet of the compressor is maintained within certain range, so when the multi-split air conditioner system is restarted to generate heat, the phenomenon of raising the lower pressure of the refrigerant to the working pressure is avoided, the cold air prevention time of an indoor unit is shortened, and the better user experience can be obtained. In addition, by setting the time of the multi-split air conditioner system entering the standby-ready mode through the controller, when the time of entering the standby-ready mode reaches the preset value, the multi-split air conditioner system is controlled to enter the standby mode, and the compressor is closed, so as to save the electric energy. The invention also provides a quick-starting heat generation method suitable for the multi-split air conditioner system.

The invention relates to a method of storing and transporting wind generated power in the form of compressed air energy, via a pipeline, from a location where wind conditions are ideal, to a facility or community where energy is needed. The method preferably comprises using at least one wind turbine to drive a compressor to compress air into storage, wherein the size and length of the pipeline can be adapted to reduce the pressure losses that are experienced along the length of the pipeline. The pipeline can be located on railroad ties, or on the desert floor, or can be extended along paths where existing right of ways are provided. The facility or community using the energy can use energy in the form of electricity, or to drive pneumatic tools or equipment, or to generate chilled air as a by-product, which can be used for refrigeration, air conditioning or desalination. A utility or grid can be provided to generate compressed air energy when the wind is not blowing, wherein compressed air energy can be produced and stored during low demand periods, and used during high demand periods.

The invention is a turbofan provided with a pre-cooler. In order to evacuate the heated cool air stream, at least one discharge pipe is arranged in a chamber and connects the pre-cooler to at least one discharge orifice provided in the inner fairing, in output of an exhaust nozzle and at least more or less opposite the wing.

A blender includes a base frame, a cover for covering the base frame, a muffler housing, a motor, and a fan. The base frame includes a hollow column having a compartment for receiving the motor. Two separating plates extend downward from a bottom end of the base frame. The motor includes a lower drive shaft for driving the fan for driving ambient cool air into the compartment of the hollow column via the apertures, thereby directly cooling the motor. The separating plates prevent the hot air exiting the blender from entering the blender again.

An insulated icemaking compartment is provided in the fresh food compartment of a bottom mount refrigerator. The icemaking compartment may be integrally formed with the liner of the fresh food compartment, or alternatively, may be modular for installation anywhere in the fresh food compartment. A removable bin assembly with a front cover normally seals the icemaking compartment to maintain the temperature in the compartment. A cold air duct formed in the rear wall of the refrigerator supplies cold air from the freezer compartment to the icemaking compartment. A return air duct directs a portion of the air from the icemaking compartment back to the freezer compartment. An air vent in the icemaking compartment directs another portion of air into the fresh food compartment. A control system provides for controlling refrigerator functions in a manner that promotes energy efficiency. The temperature of the ice compartment is between the temperatures of the fresh food and freezer compartments.

The invention relates to a data center machine room cooling system featuring cool air distribution according to needs, comprising an air-conditioning unit and a heat dissipation air channel. Cold air provided by a refrigerating unit is distributed to equipment cabinets through an air inlet header pipe and an air inlet adapter pipe according to cold energy the equipment cabinets need and then is distributed to servers according to the cold energy the servers in the equipment cabinet need through a cold air distribution box, so as to carry out forced air cooling on heated components. The cooling system optimizes airflow movement and realizes air distribution according to needs, thus being an efficient and energy-saving data center machine room cooling system heat dissipation solution.

The invention discloses a method for controlling the temperature of outlet air of an air conditioner. The air conditioner is provided with different cold-air preventive temperatures TE for preventing cold air from being blown out from an air outlet, each cold-air preventive temperature TE and set temperature TS meets functional relation of TE=B+f(TS), when the set temperature TS rises, the cold-air preventive temperatures TE rise, when the set temperature TS drops, the cold-air preventive temperatures TE drop, simultaneously, an indoor fan can run at set rotation speed WS, gentle-breeze rotation speed W0, shutdown speed and rotation speed between the WS and the W0 according to different cold-air preventive temperatures TE during heating running of the air conditioner, and the rotation speed W which changes linearly is determined according to the temperature of an indoor heat exchanger. The method for controlling the temperature of outlet air of the air conditioner has the advantages that cold air can be effectively prevented, comfortableness of users is enhanced, and purposes of quick heating and comfortable heating are achieved.

An insulated icemaking compartment is provided in the fresh food compartment of a bottom mount refrigerator. The icemaking compartment may be integrally formed with the liner of the fresh food compartment, or alternatively, may be modular for installation anywhere in the fresh food compartment. A removable bin assembly with a front cover normally seals the icemaking compartment to maintain the temperature in the compartment. A cold air duct formed in the rear wall of the refrigerator supplies cold air from the freezer compartment to the icemaking compartment. A return air duct directs a portion of the air from the icemaking compartment back to the freezer compartment. An air vent in the icemaking compartment directs another portion of air into the fresh food compartment. A control system provides for controlling refrigerator functions in a manner that promotes energy efficiency.

The invention discloses an air conditioner control method. The air conditioner control method includes that enabling an air conditioner to enter a refrigerating mode, detecting the indoor temperature, and comparing with a set comfortable temperature; if the indoor temperature is higher than or equal to the comfortable temperature, calculating the indoor temperature difference, carrying out room temperature PID operation according to the indoor temperature difference to obtain a first target frequency, and controlling a compressor according to the first target frequency; if the indoor temperature is smaller than the comfortable temperature, detecting the temperature of an air conditioner evaporator coil, if the coil temperature is larger than a target coil temperature, controlling the compressor according to the first target frequency; if the coil temperature is less than or equal to the target coil temperature, lowering the current running frequency of the compressor to obtain a second target frequency, and controlling the compressor according to the smaller value of the second target frequency and first target frequency; detecting the human body temperature in the refrigerating process, and increasing the indoor target temperature when the human body temperature is abnormal. The air conditioner control method is capable of solving the problem of uncomfortable refrigeration of an existing air conditioner due to blowing cold air and capable of controlling flexibly according to the human body temperature.

A cycle cold wind device used in the high pressure frequency conversion device, includes a high pressure frequency conversion device cabinet for the cooling process to the heating components in the cabinet, a heat exchange cabinet for the separating cool to the hot air by the water in the disk pipeline, an air intake connecting channel for delivering the hot air discharged from the high pressure frequency conversion device into the air inlet of the heat exchange cabinet, and an air outtake connecting channel for delivering the cold air discharged from the heat exchange cabinet into the air inlet of the high pressure frequency conversion device. The air in the high pressure frequency conversion device and the heat exchange cabinet constitutes a sealing space of the cold and hot air cycle flow through the air intake connecting channel and the air outtake connecting channel. The device is changed into the sealing door from the traditional high pressure frequency conversion device, then is added with a heat exchange cabinet and two vent channels, thereby better solving the defect on the heat radiation of the high pressure frequency conversion device, with the advantage of simple structure, practicality, low cost of the manufacture, the use and the maintenance, long service life and marked efficacy.

The invention relates to a method and apparatus for using solar energy to enhance the efficiency of a compressed air energy storage system (and visa-versa). The apparatus comprises a photovoltaic panel to drive a compressor, which provides compressed air energy into an inner vessel housed within a storage tank. Two solar receiving panels are used to heat water which can be circulated and stored within an annulus surrounding the inner vessel, wherein the heated water can help regulate the temperature of the compressed air within the tank. This way, when air is released using a turbo expander, any excess temperature drops that can otherwise result from air expansion can be avoided. The overall system efficiency is enhanced by the chilled air by-product of the turbo expander which is used to generate more electrical power from an associated fuel-driven generator set, and/or by the waste heat from the compressor and from the generator set exhaust which is used in a Combined Heat and Power system (CHP) to power either a steam-driven generator set or an absorption chiller.

A combustion turbine power generation system 10 includes a combustion turbine assembly 11 including a main compressor 12 constructed and arranged to receive ambient inlet air, a main expansion turbine 14 operatively associated with the main compressor, a combustor 16 constructed and arranged to receive compressed air from the main compressor and to feed the main expansion turbine, and an electric generator 15 associated with the main expansion turbine for generating electric power. Pressure reducing structure 28 is constructed and arranged to reduce pressure of compressed air from a source of compressed air to atmospheric pressure and thus to reduce a temperature of the compressed air from the source of compressed air to a temperature below ambient temperature when exhausted from the pressure reducing structure. Structure 32 is associated with the pressure reducing structure to permit mixing of the air exhausted from the pressure reducing structure and the ambient inlet air to reduce a temperature of inlet air to the main compressor and thus increase the combustion turbine assembly power.

The present invention is to realize supercooled freezing as a method of enhancing the quality of frozen food with a simple arrangement by a method other than quick freezing. Further, the present invention is to obtain a refrigerator and a frozen food preservation method capable of realizing high quality freezing by a simple arrangement.

The refrigerator, which stores food making use of the cold air generated by a cooler 3, includes a supercooling case 81 for keeping the stored food in a supercooled state, in which the food is not frozen even at a temperature equal to or less than the freezing point of the food, for at least a predetermined period of time. The supercooling case 81 is composed of, for example, a lower case of two-stage type upper and lower cases disposed in a switching chamber 200 capable of being switched to a plurality of temperature zones.

A heat dissipating device includes a motor, a rotary unit, and a housing for receiving the motor and the rotary unit. The rotary unit includes a hub mounted to the motor and blades extending from the hub. The housing defines a hot air inlet, a hot air outlet, a cold air inlet, and a cold air outlet. The housing includes a first partition and a second partition located close to outer ends of the blades. The two partitions divide the housing into a first channel coupling the hot air inlet and the hot air outlet, and a second channel coupling the cold air inlet and the cold air outlet. The two partitions have widths greater than a pitch of the blades to prevent air from mixing in the two channels. The two channels create a bi-directional blower that removes hot air from and provides cold air into a computer case.

The invention relates to the technical field of air conditioning equipment, in particular to an upright air conditioner and a method for improving the air blowing comfort of the air conditioner. The upright air conditioner comprises air deflectors which are arranged at an air outlet of an air conditioner body and can rotate upwards or downwards and is characterized by further comprising a sensor unit used for detecting the human body, the sensor unit is connected to a control device of the air conditioner body, and the control device controls air output parameters of the air outlet according to the received real-time detection information of the sensor unit so that cold air can avoid the human body. The invention further provides the method for improving the air blowing comfort of the air conditioner. Through the structure that the sensor unit and the control device are matched, the straight-blowing cold air can avoid the human body, the structure is simple, use is convenient, and the comfort and the competitiveness of the air conditioner can be improved.