1343 results about "Temperature conditioning" patented technology

A temperature climate control system comprises a variable temperature seat, at least one heat pump, at least one heat pump temperature sensor, and a controller. Each heat pump comprises a number of Peltier thermoelectric modules for temperature conditioning the air in a main heat exchanger and a main exchanger fan for passing the conditioned air from the main exchanger to the variable temperature seat. The Peltier modules and each main fan may be manually adjusted via a temperature switch and a fan switch, respectively. Additionally, the temperature climate control system may comprise a number of additional temperature sensors to monitor the temperature of the ambient air surrounding the occupant as well as the temperature of the conditioned air directed to the occupant. The controller is configured to automatically regulate the operation of the Peltier modules and / or each main fan according to a temperature climate control algorithm designed both to maximize occupant comfort during normal operation, and minimize possible equipment damage, occupant discomfort, or occupant injury in the event of a heat pump malfunction.

A single pair of polarity independent wires conveys electrical power and two-way communication between a remote thermostat and a temperature-conditioning unit. The system is functional even if the wires are crossed, so mis-wiring is nearly impossible. The system is selectively operable in three independently distinct modes: a power mode for conveying electrical power from the temperature-conditioning unit to the thermostat, an output mode for transmitting a communication signal from the temperature-conditioning unit to the thermostat, and a feedback mode for conveying a communication signal from the thermostat to the temperature-conditioning unit. When the power mode is inactive during the output mode and feedback mode, the thermostat relies on electrical power that the thermostat stored during a previous power mode. Communication is provided by a current loop circuit that is generally immune to electrical noise and tolerant of wire impedance.

A chuck, chuck control system, lithographic apparatus and method of using a chuck are disclosed. In an embodiment, there is provided a chuck (43) for use in holding a patterning device (MA) or a substrate (W) onto a supporting table (MT, WT) of a lithography apparatus (100) by electrostatic force, in which the patterning device is for imparting a radiation beam (B) with a pattern in its cross-section to form a patterned radiation beam, and the substrate is for receiving the patterned radiation beam; said chuck comprising: a dielectric member (45); a temperature conditioning fluid channel (48) formed within the chuck; a drive electrode (40,42) for applying a potential difference between the drive electrode and the patterning device or substrate across the dielectric member in order to electrostatically attract the patterning device or substrate towards the drive electrode; and a first shield electrode (60) for reducing or preventing the development of an electric field across temperature conditioning fluid in the temperature conditioning fluid channel due to a voltage applied to the drive electrode, in order to reduce or prevent electrolysis in the fluid.

The invention relates to a method for acquiring the optimum air-conditioning system operation parameters based on the weather forecast, solving the problems of poor temperature regulating quality in the buildings because of inaccurate operation parameters of the existing air-conditioning systems and difficult implementation and grave energy waste because of higher requirements of the existing automatic air-conditioning regulating devices for the existing air-conditioners. The method is characterized by computing the hourly meteorological parameters of the next N-numbered hours according to the weather forecast in combination with the historical meteorological data; later, computing the hourly air-conditioning load according to the characteristic parameters of the buildings in combination with the hourly meteorological parameters and comparing the hourly air-conditioning load with the designed air-conditioning load to determine the hourly load coefficients; then carrying out heat balance analysis on all the operation modes and the hourly load coefficient of the air-conditioners to be regulated to screen out the feasible operation modes; and selecting the feasible operation mode characterized by minimum energy consumption as the optimum operation mode and outputting the parameters of the optimum operation mode. The method is applicable to operation control of large air-conditioners.

The present invention provides systems, methods, and articles for stress reduction and sleep promotion. A stress reduction and sleep promotion system includes at least one remote device and an article for temperature conditioning a surface. The stress reduction and sleep promotion system includes at least one body sensor, at least one remote server, and / or a pulsed electromagnetic frequency device in other embodiments.

A method and system for temperature conditioning of engine intake air by use of controllable intercooler which consists of an active thermoelectric device and a controllable valve system which optimally directs the path of airflow through a plurality of chambers in response to signals from a controller in order to optimally provide temperature conditioned air to the engine. System features temperature storage isolated from heat soaked engine components allowing immediate and efficient conditioning of airflow into an internal combustion engine. Intelligent control of this device removes parasitic power drains during high demand situations.

The present invention relates to a vehicle seat with a ventilated component such as a seat component or a backrest component, where at least one of the components has a seat cushion and a trim surface. The invention also includes an absorption refrigeration system having a boiler in thermal contact with a heat source of the vehicle, a condenser, and an evaporator located in thermal contact with the vehicle seat. The absorption refrigeration system also includes a conduit fluidity connecting each of the boiler, condenser and evaporator to each other. A refrigerant is located in the conduit and circulates among the components to facilitate temperature conditioning of the vehicle seat.

An apparatus for selectively heating and cooling (temperature conditioning) a seat on a vehicle, where the seat is exposed to the environment. A thermoelectric device selectively heats and cools a heat exchanger filled with a liquid. The liquid is forced through a coil in the seat by a pump. The coil transfers heat by conduction through the seat to the seat's occupant. A controller permits selection of the amount of heating or cooling of the liquid. A switch determines the polarity of the voltage applied to the thermoelectric device, which determines whether the liquid is heated or cooled.

An air conditioning apparatus incorporates an ion generating device that generates positive and negative ions by applying an alternating-current voltage between electrodes. The generated positive and negative ions coexist in the air and, when they attach to the surfaces of airborne bacteria, they react chemically with each other and generate radical hydroxyl and hydrogen peroxide, which extract hydrogen atoms from the cells of the bacteria and thereby kill them. This sterilizing effect is combined with the temperature-conditioning, dehumidifying, humidifying, air-purifying, and other functions of the air conditioning apparatus to bring about a comfortable and healthful indoor environment.

A cryostat for providing temperature regulation, one purpose being measuring physical properties of materials, the cryostat employing a superconducting magnet assembly for generating variable magnetic field in the sample space and a cryogenic cooler for cooling the sample space. The cryogenic cooler chamber configuration provides for efficient heat exchange between different stages of the cryogenic cooler without the need for physical heat links. This construction enables selective delivery of cooling power from the cryogenic cooler to the desired areas within the cryostat without using flexible physical thermal links. A counter flow exchanger and ambient temperature valves facilitate efficient use of the cryogenic cooler stages. The removal of large heat load generated by the superconducting magnet while operating in the sweeping mode is achieved, in part, by employing a solid plate thermal coupling element between the cryogenic cooler chamber and the magnet assembly.

A heat-shrinkable film and a method of its manufacture are provided. In an exemplary embodiment, a polystyrene film exhibits heat-induced growth in the cross direction of great than or equal to 5% with greater than or equal to 30% concomitant shrinkage in the machine direction. The films may comprise crystal polystyrene, high impact polystyrene, and / or elastomers. A method of manufacture is disclosed which includes a post-extrusion temperature conditioning step.

The present invention discloses an icing wind tunnel hot gas anti-icing test high-precision simulation method and device. The device comprises a gas source, a pressure reduction device, a filter, an air heater, a multistage electric heating device and a test section in order from a gas input direction to a gas output direction. The gas path behind the pressure reduction device is divided into two paths, one path is heated and then is subjected to flow mixing with the other unheated path, a pneumatic switching valve in an icing wind tunnel plenum chamber is configured to divide the gas path into two paths, gas of one path enters a test section and flows out after passing through a test model to perform flow measurement, gas of the other path is flown through from the external portion of the test section and performs flow measurement, and gas of a model main path and gas of a simulation bypass path are combined into one path after passing through the wind tunnel test section and are exhausted through a flowmeter and a silencer; a cold and hot gas mixing mode is employed to rapidly reduce the high-pressure hot gas behind the air heater so as to reach the effect of rapid temperature adjustment; and the multistage electric heating device is employed to perform high-precision temperature regulation and control so as to perform high-precision temperature adjustment of high-pressure hot gas prior to the high-pressure hot gas entering a test model step by step.

A heating and cooling device for temperature conditioning an air supply for an air conditioned appliance, said heating / cooling device comprising: a first air passage for channeling a first air flow; a second air passage for channeling a second air flow; an inlet fan for drawing air into said first, air passage; an exhaust fan for drawing air through said second air passage; one or a plurality of heat exchangers for exchanging heat between air in said first air passage and air in said second exhaust air passage; wherein said first air passage comprises a tubular channel having an inlet at a first end and only one outlet, said outlet being at a second end of said passage, and said inlet fan is positioned at said inlet, such that said first air flow is channeled through said inlet fan, along the whole of said air passage, encountering all of said one or plurality of heat exchangers, and out of said outlet.

A heat-shrinkable polylactic acid (PLA) film and a method of its manufacture are provided. In an exemplary embodiment, the PLA films exhibit heat-induced shrinkage in the transverse direction with little to no concomitant shrinkage in the machine direction. The films may comprise any grade of PLA polymer, optionally including additives, such as antiblock, slip, plasticizers, viscosity enhancers and combinations thereof. A method of cast and tenner manufacture is disclosed, which includes a temperature conditioning step.

The invention discloses a variable-frequency air conditioner and a temperature adjusting time prediction method and system thereof. The method includes: detecting indoor environment temperature and outdoor environment temperature; comparing the indoor environment temperature with set temperature; acquiring the corresponding operation frequency of a compressor when the indoor environment temperature is located at different temperature points according to the temperature different between the indoor environment temperature and the set temperature; predicting the operation time of the air conditioner when the indoor environment temperature reaches the set temperature according to the outdoor environment temperature, the indoor environment temperature and the corresponding operation frequency of the compressor. By the method, the operation time of the air conditioner when the indoor environment temperature reaches the set temperature can be accurately, objectively and reliably predicted, and user experience of the air conditioner is increased.

Liquefied natural gas is regasified to form natural gas, including circulation of an intermediate fluid between a vaporizer and an ambient air heater, where the intermediate fluid is warmed by exchanging heat with the ambient air as the intermediate fluid passes through the ambient air heater, and the intermediate fluid is cooled by exchanging heat with LNG as the intermediate fluid passes through the vaporizer. The ambient air heater is subjected to a defrosting cycle by intermittently regulating the temperature of the intermediate fluid fed to the ambient air heater to a temperature greater than zero degrees Celsius using a source of supplemental heat.

An air conditioner for a vehicle includes: a pump configured to take in and discharge a heat medium; a first heat medium / air heat exchanger disposed to regulate a temperature of ventilation air blown into a vehicle interior by conducting sensible-heat exchange between the ventilation air and the heat medium circulated by the pump; a first heat transfer device having a passage through which the heat medium flows and disposed to conduct heat transfer with the heat medium circulated by the pump; a heat medium temperature regulator disposed to regulate the temperature of the heat medium circulated by the pump; and a heat exchanger regulator disposed to regulate a heat transfer amount with the heat medium in the first heat transfer device or heat exchange capability of the first heat medium / air heat exchanger such that a temperature associated with a temperature of the ventilation air regulated by the first heat medium / air heat exchanger approaches a first target temperature.

The invention relates to the technical field of air-conditioning, in particular to a control method of an air conditioner, and aims to solve the problem that a conventional air conditioner with a function of fresh air is poor in user experience. In order to solve the problem, the invention relates to the control method of the air conditioner. The control method of an air conditioner comprises thefollowing steps of obtaining the concentration of indoor carbon dioxide; when the concentration of carbon dioxide is greater than a first preset value, obtaining the running state of the air conditioner; and based on the obtained result, selectively controlling a temperature regulating unit and / or a fresh air unit to operate. Through the adoption of the above control mode of the control method ofthe air conditioner disclosed by the invention, when the concentration of the indoor carbon dioxide is too high, the temperature control unit and the fresh air unit are jointly controlled, so that indoor comfort degree is guaranteed, and the user experience is improved.

The invention relates to the technical field of refrigeration and discloses a refrigeration control method and device for a machine room. The refrigeration control method for the machine room comprises the steps that current return air temperatures and current supply air temperatures of all indoor units of air conditioners are received; and the rotating speed of fans and the rotating speed of compressors (or the opening degree of a water valve) are adjusted according to the corresponding relation of a stored target return air temperature, the rotating speed of the fans of all the indoor units with a calibrated target supply air temperature and the rotating speed of the compressors of compressor air conditioners (or the opening degree of the water valve of a chilled water air conditioner) when the current return air temperature is not equal to the target return air temperature, so that the current return air temperature is adjusted to the target return temperature, and the current supply air temperature is adjusted to the target supply air temperature. According to the technical scheme, the adjustment range of the refrigerating capacity of the air conditioners can be enlarged, and the stability of refrigeration control is improved.

A method for dehumidifying air in an indoor space using outside air is comprised of the steps of: sensing whether there is a demand for dehumidification in the space; in response to a demand for dehumidification, determining whether outdoor air is suitable for dehumidification of the space; if the outdoor air is determined to be suitable, admitting outdoor air into the air supplied to the space; and selectively temperature conditioning the supply air in accordance with a predetermined temperature condition therefor. The method is disabled in response to a demand for heating or sensible cooling in the space. Further, the ratio of outdoor air to return air in the supply air is kept relatively constant, irrespective of whether the predetermined temperature condition is satisfied.

The invention discloses a temperature regulation method for an air conditioner. The temperature regulation method comprises the following steps: S1, acquiring the body surface temperature of a human body and the set target temperature of the air conditioner; S2, regulating the set target temperature according to the body surface temperature of the human body and a standard body surface temperature threshold value; S3, controlling the air conditioner to run at regulated set target temperature. The temperature regulation method for the air conditioner is more intelligent, and the comfort of the air conditioner can be improved. The invention further discloses the air conditioner.

For an ultrasonic sensor at least one sensitivity parameter or sensitivity characteristics curve may be adjusted as a function of the air humidity and / or temperature in such a way that a predefined range or a range section may be reliably reached. Such a sensor makes it possible to reliably detect curbs, and to locate parking spaces, including curb detection under varying weather conditions.

A roof system for a building is adapted to harness pyroelectric and piezoelectric effects to generate electric power. A roof system is provided wherein roof tiles, or other covering structure, are adapted with piezoelectric materials capable of converting mechanical energy from falling rain into electric energy by compression or deformation of the piezoelectric material, and further adapted with a pyroelectric system that generates electric power from temperature changes. The use of polyvinylidene fluoride, a material having both piezoelectric and pyroelectric characteristics, is discloses as a preferred material for accomplishing the goals of the present invention. The power generated supplies thermoelectric cooling systems that provide temperature conditioning of the building's interior space.

The invention provides a control method of an air conditioner, a control system of the air conditioner, a wearable electronic device and the air conditioner. The control method of the air conditioner comprises the steps of obtaining the peripheral environment temperature of a user; and according to the peripheral environment temperature of the user, judging whether the variable quantity of the peripheral environment temperature of the user within unit time is larger than or equal to a preset temperature threshold value or not, and if yes, according to a temperature interval of the peripheral environment temperature of the user, adjusting the target adjusting temperature of the air conditioner so as to enable the air conditioner to adjust the indoor temperature of the user according to the adjusted target adjusting temperature. According to the technical scheme, according to the current actual condition of the user, the target adjusting temperature of the air conditioner can be intelligently adjusted, so that it is ensured that the user is in the comfortable environment all the time, and the use experience of the user is improved.

A building heating system with cycling steam source used for plurality of radiators is provided. During heating cycle condensate is retained in radiators and released later through steam supply line. Such condensate and steam flows alternation eliminates water hammering and justify usage of smaller diameter tubes and new radiator design. When air is evacuated, system operates like branched heat pipe with periodic condensate return. System may include vacuum check valve on air vent lines and operational procedure to create vacuum naturally by steam condensing in a closed space after complete air purging from the system. Steam / vapor source's cut off pressure can be adjusted to regulate the vapor's temperature depending on the outside temperature. Method is proposed for conversion of the existing steam heating systems into a vapor / vacuum system with naturally induced vacuum.