1322 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.

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.

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 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.

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 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.

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.

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.

Use of compressed air for indoor ambient temperature conditioning is disclosed. Thermal energy is imparted to or extracted from a quantity of compressed air, and the compressed air is then directed to be released inside a structure enclosing a space, whose ambient temperature needs to be controlled. Thus, the compressed air may be used as a direct heat conduction/extraction medium. A flow of external air is created over a heat exchanger mass (a “heating mass” or a “cooling mass”), so that thermal energy of the compressed air flowing inside the heat exchanger mass is transferred to the external flow of air flowing outside the heat exchanger mass. Thus, in addition to being a direct heat conduction/extraction medium, the compressed air is being used as a heat transfer medium, that ultimately gets mixed with the flow of external air. A fresh supply of external air may be used rather than using re-circulated air, in order to maintain a high quality of breathable air. A local feedback loop may be used to route back a portion of temperature-conditioned air produced by a system according to the present invention, to regulate a flow of external air over a heat exchanger mass. Other types of environmentally benign compressible fluids may be used as a heat transport/transfer fluid instead of compressed air.

The invention discloses a control method and system for improving the comfort of an air conditioner sleeping mode. The control method comprises the following steps that the gender and/or the age groupof a user are detected; the outdoor air temperature, the indoor air temperature and the indoor air humidity are collected in real time, the average of the outdoor air temperature and the indoor air temperature is set as the average radiation temperature, and a target temperature value is calculated by substituting clothing heat resistance, air velocity parameters and human body metabolic rate parameters into a PMV equation, wherein the clothing heat resistance and the air velocity parameters are preset by an air conditioner; and the frequency and operating mode of a compressor are adjusted through a 0.1-DEG C precise temperature control technology, and thus the temperature is adjusted to the target temperature. The precise target temperature value can be calculated through a fitting function, real-time precise adjustment can be achieved, and the heat comfort of the user under the sleeping state is significantly improved.