670 results about "Cooling energy" patented technology

Illustrative embodiments of the present invention are directed to a method and system for disaggregating climate control energy use from non-climate control energy use for a building. The method includes receiving a series of building energy use values and corresponding outdoor temperature values for a time period. Each of the energy use values and outdoor temperature values is associated with a time interval. The method further includes determining a series of temperature difference values for the time period based on a difference in temperature between a predetermined baseline temperature and each of the outdoor temperature values. A regression analysis is used to determine a climate control coefficient and a non-climate control coefficient from the energy use values and temperature difference values. The climate control coefficient and/or the non-climate control coefficient is used to determine climate control energy use and/or non-climate control energy use for the building.

A system for regulating the temperature of multiple areas within a facility using multiple energy savings devices (ESD) that each regulate the temperature of individual rooms or areas within a facility having a central heating and cooling plant. The device includes a fan and thermostats to control the temperature in each room. A first thermostat is located within the energy savings device to activate a fan only when a baseboard-heating element, cooling element or conduit provides a pre-selected sufficient temperature level range to activate a fan. Another thermostat is located remotely in each room and communicates to each ESD to deactivate the fan when the temperature in any room exceeds or is less than the desired temperature level. The desired temperature level may be higher or lower than a main thermostat setting that controls the central heating and cooling plant, in accordance with a heating or cooling mode, respectively.

Energy consumption data of a building and temperature data outside the building collected over a period of time are correlated and segmented into a plurality of segments including at least a heating consumption segment, a cooling segment, and temperature-insensitive segment. An energy efficiency coefficient for heating from the heating consumption segment, an energy efficiency coefficient for cooling from the cooling consumption segment, an energy efficiency coefficient for other energy consuming activities from the temperature insensitive segment are determined, and scaled. The energy efficiency coefficient for heating, the energy efficiency coefficient for cooling and the energy efficiency coefficient for other energy consuming activities are used to assess energy efficiency among one or more buildings, forecast future consumption of energy in the building based on forecasted temperature and simulate impact of hypothetical temperature and hypothetical energy efficiency on energy consumption in the building.

The invention discloses a heat pipe semiconductor refrigeration cool storage system which comprises a semiconductor refrigeration system and a heat pipe cool storage system; the heat end of a semiconductor refrigeration block in the semiconductor refrigeration system is tightly contacted with a first metal heat radiation block, the cold end of the semiconductor refrigeration block is tightly contacted with a second metal heat radiation block; a refrigeration heat radiation fin used for heat radiation of the heat end is arranged on the first metal heat radiation block; a condensation section of a heat pipe in the heat pipe cool storage system is arranged in the second metal heat radiation block, an evaporation section of the heat pipe is arranged in a cool storage device; phase change cool storage material used for storing cool energy is filled in the cool storage device, and a cool storage heat radiation fin used for transferring the cool energy in the cool storage device is arranged at the outside of the cool storage device. The heat pipe semiconductor refrigeration cool storage system of the invention utilizes the heat pipe to transfer the cool energy into the cool storage device in a box from the cold end of the semiconductor refrigeration block, the cool energy is great, the stored cool energy can be released according to the needs, and the residual cool energy is stored for standby, thereby being applicable to vaccine transportation, field operation and other long-term uses.

The wrist or headband described herein is of composite construction, specifically, an essentially continuous elastic band or sleeve, which is anatomically conforming in overall dimensions to the approximate wrist or headband size of a wearer; and, a moisture absorbent material, associated with at least one end of the sleeve, to wick moisture from the interface of a wearer and the sleeve into a reservoir located on the exterior surface of the sleeve. The sleeve is preferably fabricated of the same material as the foam fabric used in the fabrication of a SCUBA diver's suit, specifically, a closed cell foam. The thickness of such materials is generally uniform throughout the device and designed to provide more than adequate thermal insulation for the source of cooling energy housed within the device. The sleeve is further modified on the interior surface thereof (also "skin contact surface") to accommodate a source of thermal energy (also "chill pack"). This modification of the interior of the sleeve (also herein "chill pocket") can include a compartment for containment of a source of cooling thermal energy, or integral bladder containing a high heat capacity fluid or gel.

This invention relates to a system and method for increasing the efficiency of association circulating power plant, wherein the power plant uses liquefied natural gas as the fuel. The method comprises the following steps: a) passing the heat of steam turbine exhaust to LNG through heat transfer fluid; b) gasifying LNG, using the cool energy arising form gasifying to condense the exhaust to condensation water; c) decreasing the pressure at expulsion of the steam turbine, improving the output power and efficiency of the steam turbine. The condensation water will mix with the cool water, absorbing the sensible heat in the exhaust-heat boiler smoke discharging and the hidden heat in the steam, decreasing the smoke discharging temperature below dew-point temperature. One part of the water which has recovered the smoke after heat will be used as the water supply for the exhaust-heat boiler, the other will be used for heating natural gas, improving the temperature of the natural gas entry to the burning room.

The present invention relates to a method of regulating and controlling surface temperature of concrete or asphalt structure (the structure) and the like, as well as atmospheric or air temperature around the structure by encapsulating and containing temperature (thermal) control materials (TCMs) or/and water in the structure which constructs or constitutes pavements, roofs, parking lots, walls and the like. Volume ratio of water and one or more TCMs encapsulated and contained in the structure are from 0.01% to 99.99%. Based on simulation analysis, on one hand, the present invention, in summertime, can reduce the highest temperature on surface of the structure by up to 56.5% (reduced by about 46° C.), and reduce the highest temperature of air around the structure by up to 54.4% (reduced by about 48° C.), therefore “heat island” effect in urban areas in summer can significantly be reduced, thus saving cooling energy and benefiting human health. On the other hand, in wintertime, by the invention the surface temperature of the structure can be raised by up to 5.6° C., and the temperature of air around the structure can be raised by up to 5° C., accordingly heating energy demand is reduced.

The invention discloses a natural cooling energy-saving air conditioner and a control method thereof. The natural cooling energy-saving air conditioner comprises an indoor fan, an outdoor fan, and a compressor, a condenser, a throttler and an evaporator which are connected in turn to form an enclosed loop; an air bypass pipeline is connected between the inlet and the outlet of the compressor; the throttler is arranged between the condenser and the evaporator; a liquid bypass pipeline is connected between the inlet and the outlet of the throttler; the air bypass pipeline and the liquid bypass pipeline are respectively provided with a solenoid valve component which is connected in parallel with the compressor and the throttler; and a loop heat pipe LHP is formed between the evaporator and the condenser. The solenoid valve components are arranged, when the outdoor temperature is low, a natural cold source can be fully utilized to cool the indoor air through simple switching of the pipelines; therefore, the energy-saving effect is obvious, various problems and hidden troubles caused by low-temperature operation of a refrigeration system of the compressor and frequent start-stop of the compressor can be avoided, and the service life of the compressor can be effectively prolonged.

Energy-efficient data center cooling techniques that utilize free cooling and/or solar cooling are provided. In one aspect, a cooling system is provided including a cooling tower; one or more modular refrigeration chiller units; and a water loop that can be selectively directed through the cooling tower, through one or more of the modular refrigeration chiller units or through a combination thereof. Another cooling system is provided including a solar cooling unit; one or more modular refrigeration chiller units; and a water loop that can be selectively directed through the solar cooling unit, through one or more of the modular refrigeration chiller units or through a combination thereof.

The invention discloses a multilevel heat recovery composite dehumidifying fresh air treatment machine, which comprises an air treatment path consisting of a plate heat exchanger, a precooling dehumidifier, a drying rotary wheel, a moisture heat recovery rotary wheel, an air feed temperature regulator and an air feed fan which are connected in series in turn through an air pipe, and an air regeneration path consisting of an evaporative cooler, a plate heat exchanger, a moisture heat recovery rotary wheel, a low-temperature heat pump heat recovery device, a high-temperature heat pump condenser, a drying rotary wheel, a high-temperature heat pump evaporator and a regenerating fan which are connected in series in turn. Due to multilevel heat recovery, heating energy consumption of regenerating air and cooling energy consumption of treating air are reduced, and the aim of saving energy is fulfilled. Meanwhile, due to two-stage combined dehumidification, the dehumidifying capacity of the set can be effectively improved, and the air treatment machine is applicable to air conditioning in summer and heating in winter for various public buildings, commercial buildings and industrial buildings, and is suitable for fresh air treatment for a large central air-conditioning system and particularly suitable for fresh air treatment for an independent temperature and humidity control air-conditioning system in a warm and humid area.

An air conditioning system for a vehicle has a cool storage heat exchanger for continuing cooling operation with stored cooling energy during a compressor is stopped due to a temporal stop of an engine for the vehicle. Cooling energy is stored in the cool storage material of the cool storage heat exchanger during a normal cooling operation during which the compressor is operated by the engine. When the vehicle stops, for example before a traffic lamp, and thereby the compressor is not operated, an ejector is operated to circulate the refrigerant from the cool storage heat exchanger to an evaporator so that the cooling operation can be continued.

The invention discloses a strengthening ventilation heat-insulation roadbed, characterized in that compacting sand-gravel-soil cushion is set on the compacting native surface; transverse concrete air ducts through wall with automatic air door controlled by temperature are set on the sand-gravel-soil cushion in a certain distance; crushed stone layer is set between air ducts through wall and above them; earthwork cloth is put on the horizontal crushed stone layer; heat insulation material is set on the earthwork cloth; and compacting embankment fill is filled on the heat insulation material. In the invention air ducts through wall are set in the crushed stone layer. In winter, by using lower temperature in frozen earth area and bigger wind speed through permeable hole of air duct the effect of convective cooling of air in the crushed stone layer is strengthened and there is strong ventilation cooling effect in air duct through wall itself. Two are combined with each other and are used by each other to decrease the temperature of frozen soil under the roadbed. In summer, the heat insulation material, the crushed stone layer and air duct through wall with air door controlled by temperature can play a role of thermal screen effect so as to prevent heat energy entering into embankment. At last storing cooling energy to the utmost is achieved; the temperature of frozen soil is decreased, the melting of frozen soil is avoided and the stability of embankment of frozen soil is ensured.

The invention discloses a cold, heat and electricity combined storage and combined supply system. The system comprises a heat pump heating and cooling energy storage loop, a cold and heat energy heatengine power generation loop, a heat supply loop and a cold supply loop; power station off-peak (cheap) electricity is used for driving a heat pump heating and cooling circular loop to make high-temperature heat energy and low-temperature cold energy, the heat energy and the cold energy are stored in a heat storage device and a cold storage device, at the power utilization moment, gas in the loopsabsorbs the stored high-temperature heat energy and the stored low-temperature cold energy, through heat engine circulation, an electric generator is driven to generate electricity, and the electricity is supplied to a user. On the heat using time interval, the heat supply loop supplies the heat energy in the heat storage device to the user through the heat exchanger, and on the cold using time interval, the cold supply loop supplies the heat energy in the cold storage device to the user through the heat exchanger. Through the cold, heat and electricity combined storage and combined supply system, simultaneous storage and supply of cold, heat and electricity can be achieved, various needs of the user can be met, and the system has the advantages of being high in energy storage density, low in cost, high in efficiency, suitable for power grid peak shaving and various renewable power stations, free of generating room temperature gas and the like.

The invention relates to a selective absorption emission composite material meeting requirements of solar heat collection and radiation refrigeration. The selective absorption emission composite material comprises a substrate, wherein a selective absorption layer and a selective emission layer are sequentially arranged on the substrate; the selective absorption layer has high absorption rate in a solar radiation spectral region with a wavelength of below 3 microns; the selective emission layer has high emission rate in a space radiation refrigeration spectral region with a wavelength of 8-13 microns. The selective absorption emission composite material has the high absorption rate in a spectral region with strong solar radiation in daytime, the low emission rate in medium-far infrared spectral regions, the high emission rate in a spectral region with space radiation refrigeration at night, and the low emission rate in other medium-far infrared spectral regions, thereby obtaining heat by absorbing solar radiation in daytime, obtaining cool energy through space radiation at night, reducing the radiation heat (cold) loss with ground and atmosphere during heat collection in daytime and refrigeration at night, and being capable of efficiently realizing two functions of solar heat collection and radiation refrigeration.

A refrigerator is provided. The refrigerator includes an insulation structure and fastening structure of an ice-making compartment refrigerant pipe disposed at an inside an ice-making compartment configured to directly supply cooling energy by being in contact with an ice-making tray. The refrigerator includes an insulation member configured to surround the ice-making compartment refrigerant pipe, and a fixing member coupled to an outer circumferential surface of the insulation member in a shape of a loop to prevent the insulation member from being widened.

Apparatus and method for separating oxygen directly from air, operating at substantially atmospheric pressure and recuperating energy used for cooling incoming air. An ambient air input leads from the atmosphere to a vessel for confining gases. A cryocooler has a cooled surface in the vessel for directly condensing oxygen from the air at substantially atmospheric pressure. The cryocooler cools the cold surface to a temperature greater than the boiling point temperature of nitrogen and not greater than the boiling point temperature of oxygen for condensing oxygen. A liquid/gas separator separates the liquid oxygen from residual gases which both flow out through separate outputs. Air is propelled through the system at substantially atmospheric pressure by an air impeller. A heat exchanger recovers cooling energy and dehumidifies incoming air by transferring heat from the incoming air to outgoing gases.

A method and associated system is provided for cooling of a data center. The method includes providing coolant to multiple cooling elements in the data center using a heat pump refrigeration cycle to cool the coolant and provide a high temperature at the condenser. This allows the reclaiming of at least a portion of the heat removed from the refrigeration cycle using a heat engine. The engine is disposed between the refrigeration condenser and the ambient environment or cooling medium.

The invention discloses a computational fluid dynamics and energy prediction hybrid based greenhouse energy-saving control method. The computational fluid dynamics and energy prediction hybrid based greenhouse energy-saving control method includes the steps of 1), establishing a CFD (computational fluid dynamic) model; 2), simulating an indoor temperature field cloud picture according to the CFD model; 3), judging priorities of work of sets of fan coils; 4), predicting greenhouse energy; 5), establishing optimized objective function of energy consumption; 6), performing sequential quadratic programming optimization calculation; 7), acquiring total input energy of each time period according to calculation results, and regulating flow of fed water and total opening number of the fan coils by means of a PID (proportion integration differentiation) algorithm according to the calculated total input energy. By the method, indoor temperature fields and greenhouse energy consumption of the greenhouse can be well simulated, and thermal environment and energy consumption inside a research laboratory can be effectively simulated; the method is free of limitation of hardware conditions of a greenhouse control system, and hardware cost of the control system is saved; the greenhouse temperature fields can be evenly distributed, heating and cooling energy consumption can be lowered, and operation cost can be lowered.

A method of generating electricity and preparing hydrogen taking advantage of difference in temperature of semiconductors. It is characterized in, the semiconductor genertrix by thermal difference iscomposed of cold or heat surfaces of a thermopile closely contacting with cooling-source heat exchanger with LNG flowing, and heating-source heat exchanger with sea flowing. While heating LNG, the semiconductor genertrix by thermal difference produces direct currents; connecting the power with anode and cathode of an electrobath, water is electrolyzed into hydrogen and oxygen; some seawater firstcools the alkali liquor of electrolyzed water, then is transmitted to the heating-source heat exchanger. Sea water provides cooling water when preparing hydrogen, as well as provides heating source of LNG, which improve efficiency of semiconductor; electricity produced in recycling LNG could be used to prepare hydrogen, which saves the area of heat exchanger and cooling water for preparing hydrogen.

The thermal energy venting system includes an insulation board disposed in the cavity between adjacent studs and other areas of a domicile or building to form venting channels directing excess heat through a roof/ridge vent. The insulation board is a non-porous laminate formed by a rigid foam core covered or sheathed with a reflective polymeric facer or plastic. The insulation board provides a thermal barrier for conduction, convection and radiation aspects of thermal energy transfer. The installation of the insulation board forms an envelope that reflects exterior thermal energy and interior thermal energy to maintain comfortable interior temperatures with minimal heating/cooling energy expenditure and costs.

Method of compounding a multimodal polyethylene composition in a compounding device, wherein a) the total residence time of the polyethylene composition in the compounding device is at least 1.5 minutes, b) the total drive specific energy (SEC) applied on the polyethylene composition is from 0.270 to 0.460 kWh/kg, c) optionally, a specific cooling energy (SCC) of at most 0.200 kWh/kg is applied on the polyethylene composition, d) the total specific energy, which is the difference between the total drive specific energy SEC and any specific cooling energy SCC, applied on the polyethylene composition is from 0.220 to 0.330 kWh/kg.

Embodiments of the present technology are directed to devices, systems, and methods of delivering ice under high ambient temperatures. A transportable container houses an air-conditioning system with a cascade heat exchanger coupling the air-conditioning system with a separate refrigeration system in the container. The separate refrigeration system provides cooling energy for a cooling device while rejecting a heat load to the air-conditioning system for rejection to ambient temperatures.