Abstract:
The present invention relates to a novel high efficiency and low weight solar flat plate fluid heating device. Use of a translucent multi-wall top cover (14) with plurality of integrated conduits in combination with stepped multi-wall sheet absorber (21) results in reduced top losses while reducing weight of the device and fluid pressure drop. Blower/pump power reduces substantially enabling the use of PV operated blower/pump. Preheating of fluid entering the absorber is facilitated by the use of translucent multi-wall top cover (14). Multi-wall construction of the absorber (21) results in reduced hydraulic diameter thereby enhanced heat transfer. Further, stepped and/or parallel arrangement of the absorber (21) results in reduced fluid pressure drop. Material of the multi-wall sheet is selected from plastics, polymers, glass, metals, alloys etc. The novel device is capable of heating single or plurality of fluids simultaneously. Further, it can be effectively used at low ambient temperatures of the order of -20° C.
Abstract:
Solar cooker of the concentrating type, using Compound Parabolic Concentrator type optics (2, 2') comprising a box (1), inside which all its accessories and cooking utensils can be carried; the box being essentially made of plastic compatible with the production of complicated curves characteristic of the referred optics. The present invention includes a version in which electrical energy is used as backup for days without sunshine. Its application extends to other areas beyond the cooking of foodstuffs, in particular to the pasteurisation of water, milk and other products and its usage as a drying system.
Abstract:
A light-concentrating lens assembly for a solar energy system, the assembly comprising a plurality of concentrically arranged paraboloid mirror reflectors, a conical light guide extending below the plurality of paraboloid mirror reflectors, an inner central cone disposed along a central axis of the concentrically arranged paraboloid mirror reflectors, and a compound paraboloid concentrator disposed beneath the inner central cone.
Abstract:
The invention relates to a solar-thermal continuous flow evaporator (7) consisting of a plurality of evaporator pipes (8) which are connected to a distributor (10), by means of the inlets ends, and to a collector (12) by means of the outlet ends. A pressure compensation pipe (14) branches off from each evaporator pipe (8) at the same height (H) and is connected to a pressure compensation vessel (13). A partial flow flows from the evaporator pipes (8) via the pressure compensation pipes (14) to the pressure compensation vessel (13) and another partial flow flows from the pressure compensation vessel (13) through the pressure compensation pipe (14) to the evaporator pipes (8).
Abstract:
? solar energy collector comprising a set of two or more reflectors reflecting sunrays at the focal line; a receiver of reflected rays placed at the focal line; and means to move the said set of reflectors along a non- parabolic concave curve. The said non-parabolic concave curve with reference to the focal line is defined by the formula : x2 + y2 = constant (k) y where x and y are the co-ordinates of a point on the said non-parabolic concave curve, in the co-ordinate system, having X axis horizontal, Y axis vertical and the origin of said co-ordinate system on the focal line. The said focal line is perpendicular to the X-Y plane and wherein each of the said reflectors intersects said non-parabolic concave curve.
Abstract:
In some embodiments, a solar energy system can include: (a) at least one solar collector, the at least one solar collector having: (1) one or more fiber optic cables; (2) a receiver with focusing optics configured to focus solar radiation into the one or more fiber optic cables; and (3) at least one concentrating reflector configured to re-direct the solar radiation to the receiver; and (b) one or more converting elements coupled to the one or more fiber optic cables, the one or more converting elements configured to convert the solar radiation into one or more other forms of energy. Other embodiments are disclosed.
Abstract:
Modular solar radiation concentrator system, which consists of using several flat reflectors mounted on a platform that transmits to each reflector rotation about two axes, allowing the concentration of solar radiation in an area or specific predetermined point in space. Each module is connected to a monitoring instrument, with specific software that allows knowing the sun's apparent path at the system installation site. Thus, the control of all reflectors of each module is conducted on their two axes of rotation so that solar radiation is, in every moment of the day, and every day of the year, focused or simply deviated to a particular point. The system described is specially devoted to solar concentration for the purpose of generating electricity, heat or both simultaneously, especially in buildings where the point of concentration may be, among others, a Stirling engine, a steam turbine or photovoltaic cells.
Abstract:
The invention relates to a solar thermal installation comprising an absorber device (200) for receiving reflected light, said absorber device (200) being arranged above heliostats (1) and supported by posts (3), and a maintenance device (300) in the region of the absorber device (200), that can be moved in the longitudinal direction of the absorber device (200).
Abstract:
A trough solar energy collector having a rotational axis comprising a collector tube (2801), a first reflective panel and a second reflective panel (601), each of said first and second reflective panels comprising a honeycomb or polymeric core (201) having an arc-shaped surface, a reflector (501) on the arc - shape surface of the polymeric core (201), cowling (702) along a longitudinal edge extending along the polymeric core and extending parallel to the rotational axis of the solar collector, the first reflective panel (601) being positioned to illuminate a first side of the collector tube (2801), the second reflective panel (601) being positioned to illuminate a second side of the collector tube (2801).
Abstract:
The invention relates to a solar radiation concentrator device comprising a device reflecting said radiation and focussing it at at least one focussing zone (25) acting as energy collector characterized in that the reflecting device exhibits at least two proximal portions (31) each extending from a focussing zone (25), and exhibiting a concave reflecting surface whose normals are tangent to the theoretical envelope surface of the focussing zone or zones (25), the concavities of the reflecting surfaces of the proximal portions (31) being oriented oppositely from the focussing zone or zones (25) so as to define a common aperture for receiving the solar radiation. It extends to a sensor comprising a plurality of concentrator devices according to the invention.