Abstract:
Systems and methods for forming solar cells with CuInSe2 and Cu(In,Ga)Se2 films are provided. In one embodiment, a method comprises: during a first stage (220), performing a mass transport through vapor transport of an indium chloride (InClx) vapor (143, 223) and Se vapor (121, 225) to deposit a semiconductor film (212, 232, 252) upon a substrate (114, 210, 230, 250); heating the substrate (114, 210, 230, 250) and the semiconductor film to a desired temperature (112); during a second stage (240) following the first stage (220), performing a mass transport through vapor transport of a copper chloride (CuClx) vapor (143, 243) and Se vapor (121, 245) to the semiconductor film (212, 232, 252); and during a third stage (260) following the second stage (240), performing a mass transport through vapor transport of an indium chloride (InClx) vapor (143, 263) and Se vapor (121, 265) to the semiconductor film (212, 232, 252).
Abstract:
Device for connection between adjacent solar receiver tubes of the type which are at the end of the solar receiver tube (1) to be joined with another adjacent solar collector tube, comprising: An expansion compensating element with at least two concentric bellows (7, 8) that are connected to each other and to a rigid ring (9) by means of a welded joint, which keeps them concentric in the expansion and compression process and joined to the glass tube (4) by the cover (12) and glass-metal transition element (21), A connection flange (5) to connect the solar receiver tube (1) to the one adjacent thereto, the flange (5) being a round metal plate with a hole that houses the absorber tube (3), Some through bolts (20) passing through the connection flange (5) to attach it with flange of the adjacent receiving tube (1).
Abstract:
A heating medium composition for solar thermal power generation system, the heating medium composition including a silane coupling agent represented by formula (1) shown below and a heating medium containing diphenyl ether: (1) wherein each of OR1, OR2 and OR3 may be the same or different, and represents an alkoxy group of 1 to 5 carbon atoms, and X is a group selected from a 3-glycidoxypropyl group, a 3-methacryloxypropyl group, a 3-aminopropyl group, an N-phenyl-3-aminopropyl group and an N-2-(aminoethyl)-3-aminopropyl group.
Abstract:
Method for obtaining solid samples or suspensions of graphene optionally doped with heteroatoms from synthetic or natural polymers, which are subjected to pyrolysis in a furnace without oxygen at temperatures of between 400° C. and 1,200° C. and subsequently to a liquid-phase exfoliation phase. The polymers used are preferably polysaccharides, such as chitosan, alginate and alginic acid, which can be optionally doped with any heteroatom. The invention is intended primarily for use in microelectronics and photovoltaic devices in which graphene sheets are very useful. In addition, the graphene prepared cn be uses as an additive for polymers and ceramic materials.
Abstract:
For the precise, low-cost measurement of the power loss of a solar installation (17) caused by dirt. The device comprises: a first photovoltaic cell (1) for transforming solar energy into a first current (8); cleaning means (4) of the first cell (1); a second photovoltaic cell (2) for transforming solar energy into a second current (9); a first voltmeter (10) and a second voltmeter (11) for measuring the electric current of the first voltage (8) and the second voltage (9); and a control module (12) for comparing the measurements of the voltmeters (10, 11) and determining the power drops.
Abstract:
Systems and methods for forming solar cells with CuInSe2 and Cu(In,Ga)Se2 films are provided. In one embodiment, a method comprises: during a first stage (220), performing a mass transport through vapor transport of an indium chloride (InClx) vapor (143, 223) and Se vapor (121, 225) to deposit a semiconductor film (212, 232, 252) upon a substrate (114, 210, 230, 250); heating the substrate (114, 210, 230, 250) and the semiconductor film to a desired temperature (112); during a second stage (240) following the first stage (220), performing a mass transport through vapor transport of a copper chloride (CuClx) vapor (143, 243) and Se vapor (121, 245) to the semiconductor film (212, 232, 252); and during a third stage (260) following the second stage (240), performing a mass transport through vapor transport of an indium chloride (InClx) vapor (143, 263) and Se vapor (121, 265) to the semiconductor film (212, 232, 252).
Abstract:
The invention relates to a suitable control method for a system of photovoltaic concentration modules, which can be used to maintain the correct orientation of the modules in order to track the sun without requiring the use of positioning sensors. The sun is tracked by performing angular movements in relation to each of the degrees of freedom at given intervals, measuring the power or current supplied by the energy collection module(s). The estimation of the sun's position and the strategy for subsequent movements are determined as a function of the reading.
Abstract:
Method for the automatized inspection of photovoltaic solar collectors installed in plants, wherein sets of collectors (1) are analyzed through image processing means. After a first treatment, the images captured are segmented to obtain the panels (2) forming said collectors (1) in a differentiated manner. Next, an analysis of the images of the panels (2) is carried out through image processing means, which may include geometric transformation and texture analyses. Next, the panels (2) can be divided into a main body (3) formed by a matrix of photovoltaic cells (4), arranged on the backsheet (5) and the periphery of the panel (6), which may be analyzed through image processing means to search for defects, identifying the type, number and severity of each one of those defects detected based on the irregularities observed.
Abstract:
Working method for a system for partial mirroring of glass tubes and said system, made up by an tube supply facility, a chain where the mirroring is carried out in different fixed stations and a tube output facility, in which the main partial mirroring steps are the following: cleaning the glass tube sensitizing the surface washing optional activation or super-sensitization step washing plating washing drying in the case of external partial mirroring, the following steps are added: depositing the copper layer washing depositing anti-corrosion paint depositing mechanical and UV protective paint curing the paint external drying of the tube
Abstract:
Mounting procedure of a high-concentration photovoltaic solar module and module thus obtained, defined to carry out a simple final mounting based on a set of elements arriving from the factory in optimum packaging to facilitate the logistics, three being the main mounting sequences:Sequence 1: optoelectronic system assemblySequence 2: mounting of the optoelectronic system at the base of the module, interconnecting and testsSequence 3: final assembly of the module, and wherein the module thus mounted comprises: a series of equal optoelectronic systems placed in a matrix configuration and each one of them formed by secondary optics (1), a photovoltaic receiver (2), a thermal adhesive (3), a heat sink (4) and a fastening piece of the secondary optics composed by a body and a washer, the structure of the module, and the upper lens (9).