A solar energy collector includes a first member having a cavity and a longitudinal axis. The first member has a longitudinal window forming a part thereof and a body forming another part thereof. The longitudinal window is made of a material adapted to be transparent to solar radiation. The body has an exterior absorptive surface and an interior reflective surface. A second member is located within the cavity of the first member and is generally parallel to longitudinal axis of the first member. The second member is adapted to carry an energy absorbing fluid. An insulative material fills the cavity between the first member and the second member. A solar energy collection system includes the form going solar energy collector and a solar energy transmitting device for directing solar energy through the window of the collector.

Solar energy collector and system for using same

The invention discloses an optothermal and photovoltaic integrated system. The optothermal and photovoltaic integrated system comprises an optothermal generation groove type heat accumulator, a concentrating photovoltaic battery component and a convex reflecting mirror. A convex reflecting mirror is movably mounted around a heat accumulation pipe of the optothermal generation groove type heat accumulator, the symmetric axis of the reflecting mirror of the optothermal generation groove type heat accumulator is provided with a first operation position and a second operation position of the convex reflecting mirror correspondingly, the first operation position is arranged between the heat accumulation pipe and the reflecting mirror, and the second operation position is arranged on the relative radial outer side of the heat accumulation pipe. The concentrating photovoltaic battery component is arranged on the symmetric axis and close to the center position of the integral mirror surface of the reflecting mirror. An integrated device is additionally arranged on the existing optothermal generation groove type heat accumulator without affecting original normal operation, functions of the original device are increased and improved, and performance is improved. The additional structure is used as a parasitic device, and the optothermal and photovoltaic integrated system has the advantages of high applicability, simple structure, convenience in modification and replacement, innovation and the like and has high application and scientific research value.

Optothermal and photovoltaic integrated system

A solar array 1 comprising at least one photovoltaic module 2 arranged in use to extend in a hemispherical, spherical or cylindrical manner, and at least one lens array 3 to focus light onto the photovoltaic modules. The lenses may be arranged in a spherical geodesic dome configuration. A helical solar water heater may also be arranged within the assembly.

A solar array

The present invention relates to an improved solar energy concentrating system. The system comprises a dual axis sun tracking paraboloid dish collector on a polar mount, with a re-reflecting mirror in top of the paraboloid dish, which reflects the concentrated solar irradiation into an opening in the paraboloid dish into a light pipe and with a movable third mirror redirects the light into a second light pipe along the polar axis, which with a fourth fixed mirror, sends the concentrated solar irradiation into a third light pipe to the cavity receiver. The invention replaces the need of flexible connectors to accommodate the movement of the mirror, with a combination of mirrors and light pipes, transferring the solar irradiation to a cavity-receiver. Dual axis tracking systems can capture more solar energy, on a more constant basis throughout the day and the year, and by reflecting directly into the cavity-receiver, thermal losses are minimized.

Re-reflecting paraboloid dish collector

The invention provides a solar frequency division and concentrated light transfer device which is small in generation cost and high in generation efficiency, and a photovoltaic generating system thereof The photovoltaic generating system comprises a photoelectric generating receiving device, and a plurality of solar frequency division and concentrated light transfer devices which are erected about the photovoltaic generating receiving device The solar frequency division and concentrated light transfer device comprises a large-aperture parabolic reflector above which a small-aperture parabolic freezing mask reflector is arranged; the small-aperture parabolic freezing mask reflector is an infrared freezing mask reflector; a circular opening is formed in the center of the large-aperture parabolic reflector; a circular barrel which is connected with the circular opening is arranged on the rear surface of the large-aperture parabolic reflector; a solar ray automatic tracking device is arranged on the outer wall of the circular barrel; an electric bracket which can slide up and down along the barrel wall is arranged on the inner wall of the circular barrel; a target tracking system is mounted on the electric bracket; a plane reflector is mounted on the target tracking system; the photovoltaic generating receiving device comprises a base, and a plurality of cylindrical photovoltaic cell panels arranged on the base

Solar frequency division and concentrated light transfer device and photovoltaic generating system thereof

A solar energy concentrating system with high light collection efficiency includes a light concentrating unit, a light homogenizing unit and photovoltaic modules The light concentrating unit includes a parabolic reflector and an ellipsoidal reflector which are coaxial and confocal The light homogenizing unit includes an infrared filter and a hollow spherical reflector with a hole in its surface When the system is under illumination, light is concentrated by the light concentrating unit through the hole in the spherical reflector surface and reflected by the inner surface of the spherical reflector onto the photovoltaic modules The infrared filter covers the hole in the spherical reflector surface and reduces the heat in the photovoltaic modules under concentrated light The combination of the parabolic reflector and the ellipsoidal reflector obtain highly concentrated light, and the hollow spherical reflector ensures light uniformity on the photovoltaic modules and light utilization efficiency

Pingrong Yu

Papers

Solar energy systems using external reflectors