Secondary reflector for linear fresnel reflector system
AssigneeAusra, Inc.
InventorsDavid R. MILLS, Matthew J. Lawrence
Life of this patent
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Abstract
A solar collection system having a secondary reflector is provided. The secondary reflector may be located above a field of primary reflectors and below a solar receiver. The secondary reflector may form a portion of an ellipse or macrofocal ellipse and be operable to reflect at least a portion of the solar radiation reflected by the primary reflectors onto the solar receiver. The secondary reflector may be disposed away from the solar receiver and associated tertiary reflectors such that it does not intercept reflected solar radiation from the outer primary reflectors that would otherwise have struck the solar receiver and tertiary reflectors had the secondary reflector not been present.
Claims25
A collector system comprising:
- at least two separately pivotable primary reflectors operable to reflect solar radiation;
- at least one solar receiver operable to receive solar radiation, wherein the at least one solar receiver is positioned on a level above the at least two separately pivotable primary reflectors, wherein the collection aperture of the at least one solar receiver is downward facing;
- and
- at least one secondary reflector operable to reflect at least a portion of a solar radiation reflected by the at least two separately pivotable primary reflectors onto at least a portion of the at least one solar receiver, wherein the at least one secondary reflector is positioned on a level below the at least one solar receiver, and wherein the secondary reflector comprises a first reflective surface.
A secondary reflector for use with a Linear Fresnel Reflector system, the secondary reflector comprising:
- a first reflective surface having a curvature defined by an ellipse, the reflective surface operable to reflect at least a portion of solar radiation reflected by a primary reflector directly onto a solar receiver while the secondary reflector is positioned on a level above the primary reflector and below the solar receiver.
Dependencies are inferred from the claim text.