Abstract:
A system for generating electric energy uses photovoltaic elements that are disposed on a supporting structure formed, in particular, by supporting cables and adjusting cables or the like. The elements can be pivoted about at least approximately vertically oriented axes, whereby they can track the east-west movement of the sun, and they can be pivoted about at least approximately horizontally oriented axes, whereby they can be adjusted to the altitude of the sun. The photovoltaic elements are attached on several supporting beams, which are oriented at least approximately parallel to each other and approximately horizontally, the supporting beams can be pivoted at one of the two ends thereof on a supporting cable or the like about an at least approximately vertical axis and are mounted rotatably about the longitudinal axes thereof. The supporting beams are coupled at the other end thereof to a pivoting and rotating device, which is formed by at least one supporting and adjusting cable.
Abstract:
A torque tube supporter and a solar tracker using the same are provided. The torque tube supporter includes a cylindrical bearing supporting a cylindrical torque tube, a bearing cover having a cylindrical middle portion for supporting the bearing, a flange radially protruding from the circumference of the bearing cover, a half journal section having an arcuate upper portion to which the flange is fixed, and a post supporting the half journal section.
Abstract:
The energy crisis that has long been accepted in the scientific community is being embraced by society along with an increasing sense of environmental responsibility. Solar will be a large part of the renewable energy revolution. Solar harnessing technology has primarily focused on solar farms or on off-grid, residential use and mostly on warm, dry climates that have high percentages of clear sky. Cooler, wetter climates have seen less research and resources dedicated to solutions and indeed have a different set of requirements than for traditional desert solar farms. This invention provides a simple tracking solar solution that combines both concentrated photovoltaic CPV and traditional photovoltaic (PV), although the solution can use only CPV or PV. The invention reduces the structural and drive demands by shielding the solar collecting mechanisms inside an enclosure and then connecting the collecting mechanisms in synchronous arrays. By shielding the collecting mechanisms from moisture and wind, the drive and support mechanisms can be very simple and inexpensive. The use of both CPV and PV increases the efficiency, particularly in cooler climates.
Abstract:
A solar concentrating system including a concentrator operative to track the Sun so as to concentrate incident sunlight on to a focal location, the concentrator including a support structure, and an array of concentrating reflectors mounted on the support structure, wherein at least one of the reflectors is formed with a reflective surface facing the Sun and configured as a concave surface such that the incident sunlight impinging on the reflective surface is reflected on to the focal location, the array of concentrating reflectors being mounted on the support structure in a Fresnel-like reflector arrangement thus defining the concentrator as a Fresnel reflector.
Abstract:
A torque arm assembly, used with a solar collector mounted to a drive shaft, comprises a torque arm with first and second ends and a torque arm coupling assembly including a drive shaft enclosure defining an open-ended channel sized to house the drive shaft. The channel has a circumferentially extending substantially continuous drive surface between the ends that lies adjacent to the drive shaft so the drive shaft and the drive shaft enclosure rotate together. In some examples contiguous abutment structure, such as weld lines, shims and/or adhesive, connects each side of the drive shaft to the drive shaft enclosure. The invention may also be carried out as a connection improvement method.
Abstract:
A solar reflector assembly is provided for generating energy from solar radiation. The solar reflector assembly is configured to be deployed on a supporting body of liquid and to reflect solar radiation to a solar collector. A solar reflector assembly comprises an inflatable elongated tube having an upper portion formed at least partially of flexible material and a lower ballast portion formed at least partially of flexible material. A reflective sheet is coupled to a wall of the tube to reflect solar radiation. The elongated tube has an axis of rotation oriented generally parallel to a surface of a supporting body of liquid.
Abstract:
A radiant energy concentrating or collimating system comprising an enclosure that shields its contents from environmental effects while allowing radiant energy to transmit through its top window; a plurality of energy concentrating or collimating assemblies, each on its own pivot mechanism and each comprising a plurality of optics, a support structure and an energy conversion device that is mounted on a heat dissipating structure; a drive mechanism controlled by a microprocessor to rotate the said energy concentrating or collimating assemblies on two orthogonal axes in unison so the assemblies are oriented towards desired direction at any given time.
Abstract:
The direction of sunlight is tracked according to variations of the altitude of the sun to maximize condensing efficiency. An apparatus for tracking and condensing sunlight includes a horizontal truss, a roof truss forming a triangular structure inclined to both sides of the horizontal truss, and a hinge formed on a top of the roof truss. Solar module plates are formed on both inclined surfaces of the roof truss to condense sunlight and interoperate with each other in a lateral direction. A driving means supports lower portions of the solar module plates, and moves the lower portions thereof so the solar module plates can pivot in both left and right directions around the hinge. The apparatus tracks sunlight and pivots the solar module plates to maximize condensing efficiency, improves energy production efficiency by using a roof area, and firmly fixes the solar module plate to the roof.
Abstract:
A solar energy collector is provided having at least one reflector panel, a plurality of solar receivers, and a support structure that supports the at least one reflector panels in a manner that defines a reflector troughs having a trough base, a pair of reflective side walls and a trough aperture suitable for receiving incident sunlight during operation of the collector, wherein each reflective side wall has a curvature that approximates a quarter parabola segment to thereby concentrate incident solar radiation on the plurality of solar receivers.
Abstract:
A solar collector structural support system that affixes to a mounting surface without penetrating the mounting surface is disclosed. The invention in the preferred embodiment includes a base assembly comprising: a plurality of leg members, a center junction elements configured to receive (a) the proximal end of each of the plurality of leg members and (b) a support member configured to securely uphold at least one of the one or more one solar collectors, and at least one footing adapted to frictionally engage the mounting surface. Multiple base assemblies may be interconnected using peripheral junction elements to form arrays of solar collectors of arbitrarily large size. The peripheral junction element is configured to couple the leg members of multiple base assemblies. When connected with the present invention, a plurality of solar concentrators form an array with greater structural integrity and less susceptibility.