Solar photovoltaic L type condenser

Abstract

The invention relates to a condenser lens, in particular to a solar photovoltaic L type condenser. By intercepting from a single parabola in the condenser lens, a ray vertical to a central line over a focus F is crossed with the parabola at a point C, a ray over the focus F is crossed with the parabola at a point A, the angle AFC is 0 to 90 degrees, a ray over the focus F is crossed with the parabola at a point B, the angle BFC is 0 to 90 degrees, and the arc line AB forms a reflector surface so as to form the L type condenser. The opening of the L type condenser is FA, and the ratio of the opening to a silicon surface is the condensing ratio of the L type condenser. The solar photovoltaic L type condenser can obtain high focusing ratio without tracking the solar energy, is always focused in a set focal plane in a set accepted angle range, improves the photoelectric and photo-thermal utilization rate, coessentially and synchronously integrates photo-electricity and photo-heat, and can be integrated with a building.

Description

technical field [0001] The invention relates to a concentrator, in particular to a solar photovoltaic L-shaped concentrator. Background technique [0002] All energy on the earth comes from solar energy, and the effective energy radiated by the sun to the surface of the earth every year is 6×10 17 km.h, less than 0.02% is effectively utilized on Earth. With the depletion of petrochemical energy on the earth, people are competing to develop and utilize solar energy in recent years. However, due to the inherent weaknesses of solar energy: First, the energy density per unit area is low. Generally, when the sun is good in summer, the ground is perpendicular to the sun at noon, and the received solar irradiance is about 500-1000w / m 2 . Therefore to develop and utilize solar energy must want bigger daylighting surface. Second, due to the night, rainy weather and no sunshine, it is necessary to consider installing energy storage equipment in order to use it around the clock, th...

AI Technical Summary

Problems solved by technology

Second, due to night, rainy weather and no sunshine, energy storage equipment needs to be considered in order to be used around the clock, which increases the cost of solar energy utilization and maintenance management costs

However, the CPC compound parabola also has deficiencies: First, the drawing is complicated: first draw two parabolas, then translate the two parabolas, each pass through the focus of the other side, and then intercept the closed part of the middle of the two parabolas, and open at the widest part of the closed part, which is CPC curve

Although CPC has improved the application effect of solar concentrators, its commercial application has been affected by the above deficiencies.

[0005] The bottleneck of the effective utilization of solar energy today is: first, the efficiency of solar photovoltaic and photothermal utilization is low, and to improve the efficiency, the concentration ratio of daylighting must be increased; temperature, while the power drops

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