Abstract:
The invention relates to a method for producing artificial crushed sand by means of a thermal treatment using sand in the form of fine sand (FS/FSa) and/or round sand as the starting material (1). The starting material (1) in variant A is heated to a melting temperature by bundling sun rays (13), and/or the starting material in variant B is heated to a melting temperature by using a conventional melting device which achieves its energy supply using converted or stored solar power, whereby each of a plurality of sand grains are melted together into a three-dimensional intermediate product (2). The intermediate product (2) produced in this manner is cooled and finally comminuted to a particle size of less than 2 mm in a comminuting process. An end product (3) is produced which differs from the starting material (1) with respect to the shape and surface roughness. The method offers a long-term solution for meeting the demand for crushed sand and provides sand for the construction industry.
Abstract:
El presente documento presenta la invención de un sistema de colección de energía solar mediante concentradores parabólico lineales, diseñados en pequeña escala y con una configuración modular que permite el máximo aprovechamiento de área de colección solar en lugares como techos o azoteas de industrias y comercios en donde el espacio la mayoría de las veces es reducido o irregular. El colector solar se acopla en arreglos de filas actuados por un sistema de control electrónico de rastreo solar totalmente autónomo que basa su funcionamiento en un algoritmo programado en un microcontrolador. Un sistema de rastreo solar autónomo es capaz de controlar dos filas paralelas con un número definido de concentradores solares de manera eficiente y además detectar la existencia de impurezas en una superficie reflectora de radiación de manera automática para su mantenimiento. La energía térmica producida es aprovechada por un intercambiador de calor que basa su funcionamiento en conducción, convección y radiación para aplicaciones de deshidratación.
Abstract:
Capteur solaire du type général dénommé « à point solaire » (« ou point focus ») employant des miroirs (et en particulier concaves, à concavité orientée pour une focalisation du rayonnement thermique vers le « collecteur solaire ») qui focalisent le rayonnement solaire vers un « collecteur solaire » complexe (C) (ci-après « collecteur » (C) par simplicité) comprenant essentiellement un « collecteur thermique » (3) où circule un fluide caloporteur (4), en combinaison synergique avec un « collecteur électrique » (5) constitué par au moins un panneau photovoltaïque dont la chaleur (TH) due à l'exposition solaire « directe » et à son échauffement « intrinsèque » est dissipée vers le collecteur thermique (en général, un tube ou un corps creux de section carrée, rectangulaire ou autre). La surface active (5, 15) du « collecteur » (C) est située au point focal de la concentration (R) du rayonnement solaire.
Abstract:
In one embodiment, a gas hydrate conversion system is provided comprising a floating factory, an appendage for harvesting a gas hydrate from an oceanic hydrate deposit, and one or more storage tanks. The floating factory comprises one or more heat exchange assemblies, one or more heat pump assemblies and an engine. In another embodiment, a method for harvesting hydrocarbon hydrate deposits is provided, the method comprising providing a gas hydrate conversion system; inducing release of methane from an oceanic hydrate deposit; capturing the methane from a primary methane capture zone and/or a secondary methane capture zone; and converting the methane to hydrogen and carbon.
Abstract:
A combined diurnal tracking, concentrator, photovoltaic plus domestic hot water solar thermal system is mountable on flat roof industrial buildings or multi-unit apartment buildings for diurnal tracking, and on pitched roofs of single family residences. The systems are configured to reduce the number of solar cells required for given power output, and increased generated heat by a concentration of the sun's insolation on the solar cells. The increased heat is drawn off by anti-freeze fluid circulated in an aluminum extrusion attached to the solar cells and concentrator reflectors for the dual purpose of providing domestic hot water or space heating and maintaining the solar cells cool to enhance their efficiency.
Abstract:
A device (1) for storing and releasing heat energy for an electrical power production plant, the device (1) being apt to receive a concentrated solar radiation and it is based upon the use of a granular fluidisable modular bed, a heat exchanger associated thereto and upon an independent activation of the storing step from the re leasing step. The thermal separation of fluidisation gas from the working fluid, the selective fluidisation of bed zones, the variation of the velocity of heat transfer and additional heat input of fuel gas make the regulation of the generated thermal power extremely flexible. Said device mainly comprising: at least one bed (3, 30) of fluidisable particles, arranged at least partly at receiving surfaces (20) for such radiation; means (14, 142, 21) for feeding a fluidisation gas for the fluidisation of said particles; and heat exchange elements (4) flown through, in use, by an operating fluid and arranged at or in proximity of said bed (3, 30) of fluidisable particles, wherein the overall arrangement is such that, in use, portions (3, 30) of said bed of particles are apt to be selectively moved by the fluidisation gas for storing heat energy received from solar radiation in a storing step and for releasing stored heat energy to said heat exchange elements (4) in a releasing step, and wherein the overall arrangement is such as to allow an independent activation of the heat storing step from the heat releasing step.
Abstract:
A method of generating electrical power utilizing hot surface air as the heat source, high atmosphere as the heat sink and a microwave beam providing updraft to initiate and control the large-scale air circulation. The frequency of the microwave beam is centered at approximately 60 GHz, within the absorption band of molecular oxygen. A high-power microwave source, turbine-generator sets, and a condenser/cyclone for floating platform are also disclosed, clean water from condensation out of humid, sea level air can be provided. Carbon dioxide can be removed from the air. The dynamic chimney produced by the microwave beam could alternatively be deployed in conjunction with a solar heat power plants, industrial chimneys, and cooling towers of conventional power plants to increase their effective height.
Abstract:
Planta híbrida gestionable de tecnología termosolar y fotovoltaica y método de funcionamientote la misma, donde dicha planta híbrida comprende tres niveles de generación: - El nivel 1 (1) de generación fotovoltaica (42) que cubre autoconsumos de la planta; - el nivel 2 (2) de generación de la planta termosolar (44) y otra parte de generación fotovoltaica (45) que cubre los consumos de los servicios auxiliares de la planta termosolar (43); - el nivel 3 (3) de generación de otro área de producción fotovoltaica (46) que mejora la curva de producción total, siendo la potencia total generada por la planta híbrida y vertida a la red (47), el resultado de la suma de generación de los tres niveles. Los módulos fotovoltaicos de la invención se ubican en: la cara norte o sur de la torre no ocupada por la cavidad; la zona que rodea a los receptores solares de la torre;en cubiertas o tejados de la planta, en la parte trasera de los helióstatos; en terreno anexo a la planta de torre.
Abstract:
The invention relates to a photovoltaic cover to be built into a business or residential building or into various shelters, said photovoltaic cover including: photovoltaic modules (1); a structure (2) supporting said modules, to be attached to the sides of a roof structure, cables, and connecting sets. The cover according to the invention is essentially characterized in that it is created by means of the sideways juxtaposition of factory-prefabricated, factory-wired subassemblies that are each designed from a metal structure (2) consisting of longitudinal profile sections (21) suitable for maintaining a number of photovoltaic modules (1) that make it possible to cover the length of the roofing side to be fitted, said roofing side covering a width including a precisely predetermined number of said modules. Metal sheets (215) define, with the bottom of the photovoltaic modules (1), an air gap (216) for cooling said modules, and a heat-insulating material (218) takes up the space between said metal sheets (215) and flat profile sections (219) that are also rigidly connected to said longitudinal profile sections (21, 23).