49 results about "Active solar" patented technology

A method for manufacturing a thin film direct bandgap semiconductor active solar cell device comprises providing a source substrate having a surface and disposing on the surface a stress layer having a stress layer surface area in contact with and bonded to the surface of the source substrate. Operatively associating a handle foil with the stress layer and applying force to the handle foil separates the stress layer from the source substrate, and leaves a portion of the source substrate on the stress layer surface substantially corresponding to the area in contact with the surface of the source substrate. The portion is less thick than the source layer. The stress layer thickness is below that which results in spontaneous spalling of the source substrate. The source substrate may comprise an inorganic single crystal or polycrystalline material such as Si, Ge, GaAs, SiC, sapphire, or GaN. In one embodiment the stress layer comprises a flexible material.

The invention discloses an active solar energy tracing method comprising the following steps: manually adjusting the initial posture of a solar energy device with an illuminated face to ensure that the illuminated face is vertical to an solar incident ray; obtaining current time; by taking the initial posture of the solar energy device and the current time as the references, obtaining device data according to the current time, and adjusting the direction angle and the altitude angle of the solar energy device at fixed time to realize active solar energy tracing. The invention also discloses a device used for the above solar energy tracing method, comprising a solar energy device with an illuminated face, a posture adjusting device of the solar energy device, a current time acquiring device, a controller and a press key system connected with the controller. The tracing method and the device of the invention have favourable precision and stability.

A multi-junction solar cell device (10) is provided. The multi-junction solar cell device (10) comprises either two or three active solar cells connected in series in a monolithic structure. The multi-junction device (10) comprises a bottom active cell (20) having a single-crystal silicon substrate base and an emitter layer (23). The multi-junction device (10) further comprises one or two subsequent active cells each having a base layer (32) and an emitter layer (23) with interconnecting tunnel junctions between each active cell. At least one layer that forms each of the top and middle active cells is composed of a single-crystal III-V semiconductor alloy that is substantially lattice-matched to the silicon substrate (22). The polarity of the active p-n junction cells is either p-on-n or n-on-p. The present invention further includes a method for substantially lattice matching single-crystal III-V semiconductor layers with the silicon substrate (22) by including boron and/or nitrogen in the chemical structure of these layers.

The invention relates to a solar active-passive heat storage 'triple' structure wall building system of a solar greenhouse and belongs to the field of garden facilities. The 'triple' structure wall building system mainly comprises a phase-change heat storage wall panel, a solar air collector, a plurality of wall air channels, autoclaved lime-sand bricks and a heat preservation material plate. The phase-change heat storage wall panel is directly adhered to the inner surface of the back wall of the solar greenhouse, the middle tier of the back wall is constituted by the autoclaved lime-sand bricks, and the heat preservation material plate is adhered to the outer side of the back wall. The middle tier, constituted by the autoclaved lime-sand bricks, of the back wall is provided with the wall air channels, and the phase-change heat storage wall panel, directly adhered to the inner surface of the back wall of the solar greenhouse, and a wall body form a passive solar phase-change heat storage wall. The solar air collector is communicated with the wall air channels through a ventilator, an air return valve and an air supply valve to form an active solar hot air wall heat display and heat storage system. Therefore, heat collecting, preserving and insulating capacities of the solar greenhouse wall can be remarkably improved.

The present invention provides for a hybrid solar radiation collection and distribution system comprising both passive solar and active solar components, generating electric potential, generating heat, and distributing visible light to numerous endpoints.

The invention discloses a photovoltaic array maximum power point tracking servo system comprising a clock circuit, a double-shaft mechanical tracking and locating system and a photovoltaic detecting device respectively connected with a singlechip control system. The double-shaft mechanical tracking and locating system comprises a first tracking component and a second tracking component connected with a battery panel bracket. A battery panel and the photovoltaic detecting device are provided on the battery panel bracket. The singlechip control system respectively controls and drives the first tracking component and the second tracking component to drive the battery panel and the photovoltaic detecting device to move in the vertical direction and the horizontal direction. The driving system adopted by the invention is a double-shaft active solar servo system which can realize the sun tracking under all weather conditions, has high precision, can always align the solar battery panel to the sun and maintain the maximum generating efficiency. Furthermore, the invention also discloses a control method of the system.

The invention relates to an agricultural greenhouse utilizing solar energy, in particular to a greenhouse heating system integrating active solar air heat collection and soil heat storage. The system consists of a solar air heat collector, a fan, an underground buried pipe and soil, wherein the solar air heat collector is fixed outside of the greenhouse and is communicated with the underground buried pipe; and the underground buried pipe is arranged in the soil under the greenhouse, and provided with two ports extending out of the ground, and one end of the underground buried pipe is connected with the fan while the other end is freely opened and closed. Compared with the prior art, the active solar greenhouse heat collecting and heat storing system has the advantages of environmental protection, energy conservation, high heat efficiency and so on.

The invention discloses an active solar system optimization method suitable for a building in a cold plateau area. The active solar system comprises a solar photothermal unit and a solar photovoltaic unit, wherein the solar photothermal unit provides a heat source for winter heating of the building through solar heat collection and an auxiliary heat source of an air source heat pump; the solar photovoltaic unit provides a power supply to a building electric appliance, the air source heat pump and a conveying water pump through photovoltaic power generation; and the solar photothermal unit and the solar photovoltaic unit are both arranged on a roof of the building. Aiming at the resource, weather and building characteristics of the cold plateau area, the invention proposes a proper building active solar utilization system, and uses the system coupling relation and the energy flow balance restraint condition for building a system optimization solution model based on the economy and the energy saving property to provide support for comprehensive application of multiple solar technologies to the building in the cold plateau area, so that the application of a solar compound system is promoted.

A photovoltaic module is provided having an active solar cell layer having a front light receiving side and opposite rear side, with an encapsulant layer is adhered to the rear side of the active solar cell layer. The encapsulant layer comprises a first polymer film comprising 20 to 95 weight percent chlorosulfonated polyolefin such as chlorosulfonated polyethylene, and optionally an adhesive. The first polymer film of the encapsulant layer may further comprise 10 to 70 weight percent of inorganic particulates such as calcium carbonate, titanium dioxide, kaolin and clays. The first polymer film may be both a single layer encapsulant layer and back-sheet with an exposed surface.

The invention discloses a heating system combining active solar energy and a CO2 air source heat pump. The heating system comprises an active solar energy collector 101, a heat exchanger 102, a heat storage water tank 103, a CO2 air source heat pump system 200, a heating tail end system 300 and a circulating system 400. The active solar energy collector 101 and the CO2 air source heat pump system 200 are two independent heating systems and supply heat to the heat storage water tank 103, and water in the heat storage water tank 103 is conveyed to the heating tail end system 300 through a circulating device. Renewable solar energy and energy-saving devices are utilized comprehensively for heating, renewable energy sources are utilized as efficient as possible, and the heating system combining the active solar energy and the CO2 air source heat pump is low in cost, high in system efficiency and remarkable in energy-saving and emission-reducing effect.

A building insulation system for roofs and walls supported from the interior side of the building, which eliminates thermal bridges and bottom side ceiling fasteners to support the insulation system materials during the insulation and exterior sheeting process of the building construction. The insulation system creates an air gap space layer in roofs and in walls between the exterior wall and roof sheeting panels and the interior sheet material, which supports the insulation material layer. An air gap space enables active solar energy collection and its use to reduce the overall purchased energy for operation of the building. The insulation system preferably includes a support sheet material, a sheet material tensioning devices, an insulation material layer, insulation hanger retention devices, heat and air collection and distribution ducts, dampers, louvers, pipes, dehumidification and condensate collection devices used in the air gap layers of the building to improve the building energy efficiency.

The invention discloses a solar thermal film coupling multi-effect water desalination device and method, and belongs to the field of seawater desalination devices. The device comprises a CPC condensation and heat collection distillation device, an active film distillation device and a collection box, wherein the CPC condensation and heat collection distillation device comprises a CPC condenser, atwo-way vacuum heat collection pipe, a first main pipe and a steam confluence pipe, the active film distillation device comprises a latent heat recovery water tank, the bottom of the latent heat recovery water tank is communicated with the first main pipe, a latent heat recovery coil pipe communicated with the steam confluence pipe is arranged in the latent heat recovery water tank, the water tankis communicated with the latent heat recovery water tank, a hydrophobic membrane is positioned on the wall of one side, opposite to the water tank, of the latent heat recovery water tank, and a condensed fresh water outlet is formed in the side surface of an air gap. According to the water desalination device and method disclosed by the embodiment of the invention, passive solar distillation, active solar distillation and membrane distillation technologies are combined, so that the solar energy utilization rate, the comprehensive energy efficiency of the system and the water production capacity can be greatly improved, and the purposes of uninterrupted operation and device miniaturization are achieved.

The invention relates to a method for reducing an active sonar detecting blind area. In one embodiment, the method comprises the steps of S10, for aiming at different detecting distances, continuously transmitting subpulses with different lengths by an active sonar in one subpulse period; and S20, receiving an echo by a receiver, processing the echo and obtaining object information on different detecting distances. The method has advantages of reducing influence of the blind area in long-distance of the active sonar, updating objective information in a whole maximal detecting distance in one-time emission, improving active detecting efficiency and detecting capability to moving objects in different speeds, and effectively improving detecting probability in a whole ranging area. Besides, the method does not require additional equipment through just changing a pulse transmission mode and an echo processing mode of the active solar. Low realization cost and potential application value are realized.

The invention relates to the field of heating and ventilation, and specifically discloses a solar radiation heat heating and ventilation system utilizing an external envelope structure of an industrial factory building. The system comprises the envelope structure and a ground, wherein the envelope structure is an interior space of the factory building, which is formed by a horizontally-arranged combination of a gable roof and a vertical envelope structure, and the ground through the envelope structure; and the side surface of the interior space of the factory building communicates with a convection radiation space, the top of the interior space of the factory building communicates with an upper convection radiation space, the convection radiation space is separated from the interior space of the factory building through the vertical envelope structure, and the upper convection radiation space is separated from the interior space of the factory building through the gable roof. The invention solves the problems of low utilization efficiency or complex structure, unsmooth ventilation and the like existing in independent passive solar house heating or active solar house heating, and the solar heating and ventilation system adopts a manner of utilizing a solar radiation energy heat-absorption steel plate and forming the convection radiation space through the heat of the steel plate.

The invention provides an active solar tracking heat collecting device and an air cylinder structure thereof. The device comprises a water tank and a photo-thermal conversion element, wherein the upper end of the water tank is of an opening structure, the photo-thermal conversion element floats on the upper portion of the water tank, the photo-thermal conversion element comprises a base body formed by a foaming material, a groove with an opening in the upper side is formed in the base body, a heat collecting tube box comprises a first tube opening and a second tube opening, the first tube opening is connected with an inlet of a left heat release tube set, the second tube opening is connected with an inlet of a right heat release tube set, an outlet of the left heat release tube set is connected with an upper tube, and an outlet of the right heat release tube set is connected with the upper tube; and the first tube opening and the second tube opening are formed in one side of the heat collecting tube box. According to the active solar tracking heat collecting device and the air cylinder structure thereof, a large amount of steam is generated without the assistance of a heating device, the floating foam material supports a photo-thermal conversion layer out of the water surface, dissipation of generated heat energy from a film to a lower-layer liquid is restrained, therefore thevaporization efficiency of the device is improved, and the great potential of the device as a photo-thermal conversion new energy material is shown.

An active solar heat collector comprises a light tracking portion, a heat collection portion and a heat storage portion; the light tracking portion comprises an upper box and a lower box; a swing mechanism is respectively arranged in the upper and lower boxes; the heat collection portion comprises a tracker head; the tracker head top plate is provided with a sun light entering hole; a top solar cell is arranged outside the tracker head top plate; a bottom solar cell is arranged on a bottom plate inner surface; the tracker head bottom surface is fixedly connected with the top of the upper box swing mechanism; the upper box bottom is fixedly connected with the top of the lower box swing mechanism; the heat storage portion comprises a water box and an electric heater; the bottom solar sell is respectively connected with a lower box motor and an upper box motor through wires; the top solar cell is connected with the heat storage portion electric heater through a wire. The advantages are that the active solar heat collector is simple in structure, easy to operate, can adjust the temperature in a green house, thus greatly saving labor and coal resources, and protecting the environment.

The invention discloses a multifunctional intelligent plateau ecological cell house and belongs to the technical fields such as intelligent control, ecological houses and green energy. A transparent conductive film material is used as a cell membrane of the ecological house. Bubble houses or dwellings are used as cell nucleuses of the ecological house. An ecological factor control module, an electric energy supply module, an oxygen supply module, a self-service medicine selling module, a water supply module, an intelligent ecological bathroom module and the like are additionally arranged in the ecological house. The internal environment of the cell house can be constantly kept stable by applying an intelligent control technology. Meanwhile, energy sources are provided for the cell house by adoption of innovative technologies such as an active solar energy utilization technology, a passive solar energy utilization technology, a kinetic energy power generation technology and a temperature difference power generation technology. The ecological cell house is mainly used for bad-weather areas mainly of plateaus, and based on tents generally existing in plateau agricultural and pastoral areas, intelligentization of the cell house is improved, zero energy consumption of the cell house is achieved, and therefore a multifunctional plateau ecological cell house internal environment life sustaining system is provided.

The invention relates to a space active solar wing unfolding mechanism driving control circuit and a control method thereof. The control circuit comprises a master control chip DSP, wherein the mastercontrol chip DSP is connected with dual paths of H-bridge pulse width modulation amplifier power driving chips, dual redundancy CAN bus interface circuits and dual channel position detection circuits, the dual redundancy CAN bus interface circuits carry out information interaction with an on-satellite integrated electronic system, each channel position detection circuit of the dual channel position detection circuits is connected with a position sensor, the position sensors are connected with output shafts, the output shafts are connected with speed reducers, the speed reducers are connectedwith stepping motors, and a PWM signal with a corresponding duty ratio is output according to the calculated control quantity. After the stepping motors decelerate through the speed reducers, the output shafts are controlled by the stepping motors, and the PWM output is stopped when solar wing substrates are unfolded into place. The control circuit and the control method have the advantages that the detection precision is high, the mechanism can be repeatedly unfolded, the control precision is high, the operation is stable, and the reliability is high.