146results about "Fule heating with photovoltaic energy" patented technology

A system for heating water includes a first tank, a solar panel, a control circuit, and a second tank for receiving water from the first tank. There is a first resistive heating element in the first tank and a second resistive heating element in the second tank. The control circuit couples power from the solar panel to the second resistive heating element unless the water in the second tank is at a preset maximum temperature, then the control circuit couples power to the first resistive heating element. If the water in the second tank is below a preset maximum temperature and above a preset minimum temperature, then the control circuit couples power from the solar panel to both the first heater element and the second heater element. If the temperature of the water in the second tank is below a preset minimum temperature, then the control circuit turns on conventional heating means in the second tank. Water is withdrawn from the second tank for use.

A photovoltaic / thermal solar panel is presented which contains no glazing above the photovoltaic array. The absence of glazing allows the photovoltaic cells to operate at a lower temperature and therefore at a higher efficiency. In addition, the absence of glazing allows the present invention PV / T panel to be used to provide nighttime cooling for a building. The panel is constructed by adhering an aluminum heat transfer plate to the rear of the PV array in the panel using a silicone adhesive. PEX tubing is inserted into channels integrally formed into the back of the heat transfer plate again using silicone or other heat-conductive compound.

A photovoltaic water heater includes a tank containing water and a heater element, a solar module, and a control circuit coupling the solar module to the heater element. One or more transducers in the system produce signals indicative of water usage. A microprocessor is programmed to produce a model of water usage from the signals and cause the heater element to heat water in accordance with the model.

A power distribution controller 50 comprises an electrical path switch 51 and a determining unit 52. The electrical path switch 51 comprises a first switch SW1 inserted between a solar cell 11 and a heating unit 62, and a second switch SW2 inserted between a commercial power system 20 and the heating unit 62. The determining unit 52 determines electrical paths of the electrical path switch 51, based on whether or not a surplus power is present in an electrical power generated in the solar cell 11. Then, the determining unit 52 controls to turn the second switch SW2 in the absence of the surplus power. The determining unit 52 controls to turn the first switch SW1 in the presence of the surplus power. In this way, when the surplus power is generated in the solar cell 11, the surplus power is used for driving the heating unit 62 of a water heater 60. Therefore, the surplus power of the solar cell 11 is stored as heat energy in a hot-water, which is stored in a hot-water tank 61. Therefore, the grid connected system can keep an increase in the cost of installation as low as possible and can use the surplus power of the solar cell effectively by means other than electric power selling.

A system for concentrating solar energy comprising a collector consisting of a number of reflective panels, a receiver which absorbs reflected energy, a working fluid which absorbs the energy, a highly transmissive cover and internal colorings or coatings to collect indirect radiation, and a solar tracking system to maintain reflector orientation. Optional photo-voltaic panels could also be used for providing electrical energy and are kept at near ambient temperatures. Under normal conditions, solar energy is concentrated by reflectors on the receiver, which transfers the energy to a working fluid which is then used for either hot water heating, desiccant drying for a solar air conditioner, or as a power source. Additional energy is collected from indirect sources using the greenhouse effect.

Provided herein are systems and methods directed to using renewable energy sources with hot water heating systems.

A multiple-power-selection heat storage device includes a power selection device, a heating device, and a storage tank. The power selection device includes a distribution selector and an uninterrupted power supply device. The distribution selector is arranged inside the uninterrupted power supply device and controls selection of power input of the power selection device among multiple power sources. The heating device is connected to the power selection device and includes a control unit and a heater controlled by the control unit. The storage tank is coupled to the heater of the heating device and the storage tank includes a container and a liquid contained in the container for purposes of heating. As such, the device of the present invention, as a whole, can be of multiple choices of power supply in supplying of warm air with a saving of energy.

A heating system includes a heat pump that provides heat to a major fluid circuit and a minor fluid circuit for performing different heating operations. The system includes a power source having a variable cost and a controller configured to regulate flow of the major and minor fluid circuits to perform the heating operations. The controller is configured to receive information regarding the variable cost of the power source and distribute flow between the major and minor fluid circuits to perform the heating operations to minimize the electricity cost. The combined enhanced demand regulation and enhanced output regulation amplifies the total heat output and power consumption while permitting greater use of a power source of varying cost (e.g. PV)—thereby minimizing overall daily operating cost.

A heat pump hot-water supply system includes a heat pump hot-water supply device, an electricity storage device, and a control device. The control device determines an operating time zone of the heat pump hot-water supply device based on power conversion efficiency of the electricity storage device, coefficients of performance of the heat pump hot-water supply device of a current day and a next day, and an electricity rate structure of a commercial power system.

A building integrated thermal electric hybrid roofing system is disclosed. The system comprises a plurality of metal battens having a longitudinal channel mounted horizontally onto a plurality of wooden battens, a thermal tubing containing liquid mounted on the longitudinal channels, a plurality of solar electric roof tiles mounted on the plurality of metal battens and connected in series to form a string, an inverter connected to each of the strings, a heat exchanger connected to the thermal tubing, and a pump connected between the thermal tubing and the heat exchanger. The plurality of solar electric roof tiles generates DC electricity from solar energy and the inverter converts the DC electricity to AC electricity to feed to a utility grid. The plurality of metal battens collects the solar energy and converts into thermal energy through running the liquid which is extracted to the heat exchanger resulting in producing domestic hot water.

A self-sustaining modularized building system comprised of prefabricated components. The self-sustaining utilities are fully integrated into the modules, allowing service and protection agencies to operate in remote areas in an eco-friendly manner.

A solar photovoltaic (PV) water heating system includes a tank (1.020) including at least a first heating unit (1.016) having at least first and second heating elements (1.016.1 . . . 1.016.x), at least one of which is switchable (1.014.1A . . . 1.014.1m); a PV solar collector (1.002); an inverter (1.004) adapted to convert the output from the PV collector to an alternating power supply; a modulator (1.060) to modulate the alternating power supply from the inverter; a controller (1.040) adapted to control the modulator and the switching of the or each switchable heating element; wherein the controller is adapted to control the modulator and the switchable heating elements to maximize the energy drawn from the PC collector.

The instant disclosure relates to a modular solar house having a modulate structure that can be installed individually or in combination to meet specific space requirements. The modular solar house includes a modular main body and a roof capable of mounting a plurality of solar panel devices. The main body comprises a plurality of vertically disposed modular walls. The modular solar house further comprises at least one solar cell, one solar water heater detachably mounted on the roof, and a hot water reservoir disposed inside the prefab room for storing the water flowing through the solar water heater.

A solar-powered photovoltaic thermal fluid heating system having an array of photovoltaic modules, an energy conversion control unit, sensors for tank temperature, with resistance heating element / tank flush water heater adaptor installed in a fluid-filled gas or electrically heated thermal storage tank. The advantages of the present invention include, without limitation, include an simple, safe, and efficient method for utilizing solar energy for the heating of water that is protected from the dangers of freezing and / or overheating, and easily retrofittable to new and existing gas and electric hot water storage tanks.

A water heater is provided having an insulated tank having a water inlet and a water outlet, and further defining an interior volume to contain a quantity of water. A primary heating arrangement applies heat energy to the water so as to heat the water. In addition, the primary heating arrangement is configured to maintain the water during standby periods between upper and lower set point temperatures. A supplemental heating arrangement is operative to supply additional heat energy to the water in order to lessen energy usage by the primary heating arrangement during the standby periods. In accordance with a preferred embodiment, the supplemental heating arrangement includes at least one photovoltaic panel and a supplemental heating element. Control electronics are operatively interposed between the at least one photovoltaic panel and the supplemental heating element.

A photovoltaic cell array, one or more heating elements, and a maximum power point tracking circuit configured to track the maximum power point of the photovoltaic cell array and to provide that maximum power collectively to the heating element(s).

A water heater is provided having an insulated tank having a water inlet and a water outlet, and further defining an interior volume to contain a quantity of water. A primary heating arrangement applies heat energy to the water so as to heat the water. In addition, the primary heating arrangement is configured to maintain the water during standby periods between upper and lower set point temperatures. A supplemental heating arrangement is operative to supply additional heat energy to the water in order to lessen energy usage by the primary heating arrangement during the standby periods. In accordance with a preferred embodiment, the supplemental heating arrangement includes at least one photovoltaic panel and a supplemental heating element. Control electronics are operatively interposed between the at least one photovoltaic panel and the supplemental heating element.

The integrated solar absorption heat pump system includes an absorption heat pump assembly (AHPA) having a generator, a condenser in fluid communication with the generator, an evaporator / absorber in fluid communication with the condenser and the generator, and a heat exchanger in communicating relation with the evaporator / absorber; a solar collector in fluid communication with the generator of the AHPA; a photovoltaic thermal collector in communicating relation with the evaporator / absorber of the AHPA; a plurality of pumps configured for pumping a fluid throughout the system to provide the desired heating or cooling; a power storage source, e.g., a solar battery, in communicating relation with the photovoltaic thermal collector; and a coil unit in communicating relation to the evaporator / absorber for receiving an air-stream. The absorption heat pump assembly can include an absorber and a solution heat exchanger.

The invention belongs to the field of heating apparatuses, particularly provides an energy-saving high-efficiency heating and ventilation type heating apparatus and aims to solve the problems that theexisting equipment cannot implement disinfection and dust removal treatment on air, cannot realize humidification and purification of the air while heating, is simplex in function, cannot realize reasonable utilization of solar resources, is poor in energy conservation effect, shakes easily, is inconvenient to use, is unreasonable in design and the like; the energy-saving high-efficiency heatingand ventilation type heating apparatus comprises a box body; the upper surface of the box body is fixedly connected with a dust removing device and a solar device; the dust removing device is arrangedat one side of the solar device; the inner sidewall of the box body is fixedly connected with a horizontal plate; and the horizontal plate is used for dividing the box body into a disinfection chamber, a heating chamber, a humidification chamber and a working chamber. The energy-saving high-efficiency heating and ventilation type heating apparatus provided by the invention can implement disinfection and dust removal treatment on the air, can realize humidification and purification of the air while heating, is complete in function, can realize reasonable utilization of solar resources, saves energy, is environmentally friendly, realizes high efficiency, and is not prone to shaking, convenient to use and reasonable in design.

Disclosed is a hot water storage-type hot water supply system having a battery unit, a heat pump cycle, a water storage tank, a water circulation path, a first path, a second path, a first temperature detection unit, a second temperature detection unit, and a control unit. The heat pump cycle circulates a first refrigerant. The first path and the second path circulate a second refrigerant. The first temperature detection unit detects the temperature of the battery unit. The second temperature detection unit detects the temperature of water stored in the water storage tank. The control unit causes the second refrigerant to pass through the first path when the temperature of the battery unit, detected by the first temperature detection unit is higher than a first predetermined temperature. The control unit causes the second refrigerant to pass through the second path when the temperature of the battery unit, detected by the first temperature detection unit is lower than a second predetermined temperature. The control unit closes the first path and the second path when the temperature of the battery unit, detected by the first temperature detection unit is the second predetermined temperature or more and the first predetermined temperature or less.

A photovoltaic system includes planar photovoltaic elements that generates electricity from solar irradiation and feed it into a power grid and / or a battery unit. A cooling coil that communicates with a first heat pump via a heat pump circuit is arranged under each photovoltaic element and feeds heat generated during operation of the photovoltaic element to the first heat pump, which communicates with a first carrier medium circuit containing a first carrier medium. A heat accumulator unit containing a heat accumulating medium is arranged in the first carrier medium circuit, the thermal energy of the first carrier medium being transferred to the heat accumulating medium within the heat accumulator unit. In addition, at least one other heat consumption circuit containing a second carrier medium communicates with the heat accumulator unit, and the thermal energy of the heat accumulating medium is transferred to the second carrier medium as needed.

A modular thermal panel comprising a paver having a top and bottom surface, and a heat exchanger having connected top and bottom panels with channels formed there between for receiving a heat exchange fluid. The top panel of the heat exchanger is coupled to the bottom surface of the thermal mass unit, an insulator panel is coupled to the bottom panel of the heat exchanger, and inlet and outlet tubes are coupled to the heat exchanger for feeding heat exchange fluid to and from the heat exchanger. The size of the heat exchanger is substantially equal to the size of the paver and the edges of the heat exchanger are substantially aligned with the edges of the paver. The heat exchanger is made of thermally transmissive material including polymers, stainless steel, aluminum, or copper and the thermal mass unit is made of a material which includes modular or pre-formed or formed in place concrete, cement, gypsum concrete, or stone.

An operating method for a heat pump including an information acquisition step for acquiring, per unit of time, the generated power, load power, surplus power, and size of impact, and an operation control step for controlling the operation of the heat pump in a manner such that the power consumed for heat-generating by the heat pump conforms to the surplus power per unit of time, wherein the operation control step involves: permitting consumption of power supplied from an energy provider, and controlling the operation of the heat pump in a manner such that the reverse flow of the surplus power is close to zero, when the size of the impact exceeds a first pre-set threshold; and permitting the reverse flow of the surplus power, and controlling the operation of the heat pump in a manner such that the amount of consumption of the power supplied from the energy provider is close to zero, when the size of the impact is equal to or less than a second pre-set threshold.

An operation planning method performed in a system including a power generation device, a first electric load operating using power generated by the power generation device, and a second electric load which generates heat using power generated by the power generation device. The operation planning method is performed to design an operation plan for the second electric load and includes: predicting, for individual unit time periods, an amount of power to be generated by the power generation device and an amount of power to be consumed by the first electric load; and designing the operation plan for the second electric load to operate during an operation period including the time period with the largest amount of reverse power, calculated by subtracting the amount of power to be consumed from the amount of power to be generated.

A liquid heating appliance for heating water or other liquids, suitably to a target temperature of from 55° C. to around boiling point, includes a primary heat chamber or body (heat source chamber) that is thermally insulated and which in use contains a high thermal density heat storing liquid or solid; and a secondary chamber alongside the primary chamber through which a liquid to be heated is passed in use. The appliance has a heat transfer feature to selectively transfer thermal energy from the heat-storing liquid or solid to the liquid to be heated in the secondary chamber. The secondary chamber is preferably a conduit through which the liquid to be heated is able to flow and the thus heated liquid can be delivered to a tap as hot water for a range of uses. Water may also be heated for a central heating system for space heating.

An operating method for a heat pump includes: a power generator; an information acquisition step for acquiring, per unit of time, the power generated by the power generator, the load power consumed by a power load, and the surplus power, which is the difference between the generated power and the load power; and an operation control step for controlling the operation of the heat pump. Therein, the operation control step involves increasing / decreasing the power consumed by the heat pump for generating heat, according to the increases / decreases in the surplus power per unit of time, when a state where the surplus power is equal to or greater than a pre-set threshold meets a first condition continuing for a prescribed interval leading up to the present.

The invention discloses a solar heated greenhouse without a supplementary heat source. The solar heated greenhouse comprises a heat collecting system, a heating heat-dissipation terminal system, a water tank thermal insulation system and a temperature control system, wherein the heat collecting system is arranged on the roof of the solar heated greenhouse; the heating heat-dissipation terminal system is arranged in a house; the heat collecting system is used for absorbing solar energy and heating water in the heat collecting system; the heat collecting system communicates with the water tank thermal insulation system through a pipeline for storing water heated by the heat collecting system; the heat collecting system and the water tank thermal insulation system form a first water circulating system; and the heating heat-dissipation terminal system takes the whole ground as a heat dissipation surface, and the heating heat-dissipation terminal system and the water tank thermal insulation system form a second water circulating system. According to the solar heated greenhouse, a solar cell module and a storage battery are not adopted, so that the cost is greatly reduced; moreover, in the whole process, electric energy is not needed to be used for heating, so that a set of complete heating system of the greenhouse is formed; and by virtue of practical industrial implementation via the applicant, the remarkable application effect is achieved.

A source network load heat storage pump heating system comprises a source part, a network part, a load part, a storage part, an energy system, an information system, an intelligent sensing system and an intelligent control system, and is characterized in that a photovoltaic power generation power supply is arranged in the heat pump heating system, and an electric load is a multi-source heat pump heating or air source heat pump facility or a multi-source heat pump heating facility heat collector; and meanwhile, solar energy, air energy, wind energy and environment energy can be absorbed, and the energy efficiency is higher than that of an air source heat pump. Water heat energy storage and storage battery electric energy storage are combined for source network load storage and Internet of Things fusion, and a photovoltaic power generation power supply technology, a power grid technology, an energy storage technology, a heat pump heating technology, a computer technology and an Internet technology are combined. The source network load heat storage pump heating system has the advantages that real-time sharing of state information among photovoltaic power generation, a power grid, energy storage and heat pump heating, the environment and the source network load storage multi-source heat pump heating system is achieved, and the purposes of saving cost and improving life quality of people are achieved. A net zero-carbon operation mode is adopted, so that building carbon neutralization is realized.