摘要:
In an example, a solar energy system includes multiple PV modules, multiple reflectors, and a racking assembly. Each of the reflectors is positioned opposite a corresponding one of the PV modules. The racking assembly mechanically interconnects the PV modules and the reflectors to form an interconnected system. The racking assembly defines gaps within the racking assembly and between adjacent PV modules and reflectors. The interconnected system includes multiple contact points associated with the gaps. The gaps and contact points configure the interconnected system to accommodate surface unevenness of an installation surface up to a predetermined surface unevenness.
摘要:
This consists of a tubular shaped body with a rectangular section, in which there are two aluminium profiles (2, 3). Of these two profiles one profile (4) is made of polyimide or similar, to break the thermal bridge, said tubular body (1) is counted with internal wings (5) to support and fasten a glass panel (7) with adhesive, also with interior wings (6) for the support of the solar panel (8) and with lower wings (10) for fastening on an aluminium sheet (12) that retains a thermal blanket (17). Furthermore, the tubular body incorporates upper and exterior wings (15) on all sides for overlapping with adjacent modules. The intermediate sector is polyimide (4) and has ribs (13) on two adjacent sides and grooves (14) on the other two for the side by side tongue and groove connection between modules. Therefore the model is self-supporting and capable of being applied directly onto the beams of a building and of creating a watertight and thermo insulated seal that allows for the module to be used as a roof.
摘要:
A deviation between an inlet-outlet temperature difference of a first superheater part and an inlet-outlet temperature difference of each of second superheater parts can be reduced so that a difference in thermal expansion between the first superheater part and the second superheater part can be reduced. It is therefore possible to avoid damage on heat transfer pipes. A solar collector for a solar heat boiler is provided with: cylindrical headers (1,3,5) which are connected to opposite end portions of heat transfer pipes; and a solar heat collection portion including the heat transfer pipes and membrane bars fixing the heat transfer pipes to one another; wherein: the cylindrical headers include an inlet header (1) into which a fluid to be heated flows, an intermediate header (3) which is disposed in a position opposed to the inlet header (1) with interposition of the heat transfer pipes, and two outlet headers (5,5) which are provided to extend on opposite end sides of the inlet header and through which the fluid from the intermediate header can be discharged to the outside; and the solar heat collection portion includes a first superheating portion (2) which has a group of the heat transfer pipes connected between the inlet header (1) and the intermediate header (3) so as to form a center region of the solar heat collection portion, and second superheating portions (4,4) which have groups of the heat transfer pipes connected between the intermediate header (3) and the two outlet headers (5) so as to be formed on opposite sides of the first superheating portion (2) respectively.
摘要:
A solar-heat collection tube includes: a central metal tube through which a heat medium flows; a glass tube, which covers the outer periphery of the central metal tube such that an annular vacuum space is defined between the glass tube and the central metal tube; and a metal thermal-expansion-difference absorption portion, which absorbs the thermal expansion difference between the central metal tube and the glass tube. The glass tube includes an end portion having an end surface. The thermal-expansion-difference absorption portion is formed from metal, and includes a connecting end connected to the end portion of the glass tube. The connecting end is formed to be gradually reduced in thickness. The connecting end is connected to the glass tube in a state in which the connecting end enters the end portion of the glass tube through the end surface of the glass tube.
摘要:
Heat receiver tube (1) for absorbing solar energy and for transferring absorbed solar energy to a heat transfer fluid (111) which can be located inside of at least one core tube (11) of the heat receiver tube (1) is provided. The core tube (11) comprises a core tube surface (112) with at least one solar energy absorptive coating for absorbing solar radiation (2). The core tube (11) is enveloped by at least one enveloping tube (10). The enveloping tube (10) comprises at least one enveloping tube wall (101) which is at least partly transparent for the solar radiation (2). The enveloping tube wall (101) comprises at least one inner enveloping tube surface (102). The core tube (11) and the enveloping tube (10) are coaxially arranged to each other such that an inner heat receiver tube space (3) is formed which is bordered by the core tube surface (112) and the inner enveloping tube surface (102). The heat receiver tube (1) comprises at least one inlet port (4) for pouring in of at least one inert gas (5) into the inner heat receiver tube space (3). The inert gas is preferably Xenon. This reduces the thermal loss of the heat receiver tube.
摘要:
Novel expansion compensation device and method for manufacture thereof, of those used in solar power absorber tubes featuring a dual bellows design where the height of the waves of the bellows is not regular, but the second wave is greater (where it supports more load) and diminishes towards the ends. With this design improving the performance of the receiver is achieved because it shortens the length of the device and consequently there is more surface area receiving solar radiation as well as it decreases the necessary diameter of glass tube and therefore its cost.
摘要:
It is provided a solar energy module for converting solar radiation to thermal energy. The module includes a thermally insulating element transmissive to solar radiation and having low transmissivity to thermal infra-red radiation, an absorbing element, a sealed enclosure, and a variable portion in the envelope of the sealed enclosure. This portion is adapted for varying the volume available to gas enclosed in the enclosure in accordance with changing temperature of the enclosed gas. Also, it is provided a solar energy module which includes a thermally insulating element, an absorbing surface and liquid pipes for absorbing the solar radiation, and an air duct thermally coupled thereof. The heated liquid and the heated air are usable for a variety of thermal applications. A heat storage may be thermally coupled to the absorbing surface and to the liquid pipes. The air duct has several air valves, and is associated with a controller for regulating air flow through the air duct. The controller may regulate heat flow in accordance with an optimization program, receiving inputs from several sources, like a sensor monitoring a building, a sensor monitoring the solar energy module, and an environment sensor.
摘要:
A dual-exposure heat absorption panel is disclosed, which can be used in a solar receiver design. Generally, the heat absorption panel includes a tube panel through which a heat transfer fluid is flowed to absorb solar energy from heliostats that are focused on the tube panel. A structural support frame surrounds the tube panel. A stiffener structure runs across the exposed faces of the tube panel. The headers and other support structures on the periphery are protected by use of a heat shield.
摘要:
A solar receiver includes a multi-sided central assembly with wing assemblies extending from corners thereof. The central assembly includes one-sided heat absorption panels, while the wing assemblies use two-sided heat absorption panels. Stiffener structures run across the exposed faces of the various heat absorption panels.