Two-stage asymmetrical composite parabolic reflector condenser in smooth transition connection

Abstract

The invention relates to a two-stage asymmetrical composite parabolic reflector condenser in smooth transition connection, which comprises an upper-stage parabolic reflector and a lower-stage parabolic reflector, wherein the lower-stage parabolic reflector comprises axial symmetrical parabolic reflectors; the upper-stage parabolic reflector comprises asymmetrical parabolic reflectors; the profile parabola principal axes of the upper-stage parabolic reflector and the lower-stage parabolic reflector are positioned in the same axis position; the absorption end width of the upper-stage parabolic reflector and the open end width of the lower-stage parabolic reflector are equal; the upper-stage parabolic reflector and the lower-stage parabolic reflector adopt the smooth connection processing; the upper-stage parabolic reflector comprises parabolas at the left and right sides; and the received half-angle sine value ratio of the parabolas at the left and right sides is equal to the solar radiation intensity ratio of the region in spring and winter. The two-stage asymmetrical composite parabolic reflector condenser provided by the invention can effectively reduce the optical radiation energy loss, widely receive solar rays and has good season adaptability.

Description

technical field [0001] The invention relates to a concentrator used in the concentrating process of solar energy utilization, in particular to a concentrator with two-stage compound parabolic reflectors. Background technique [0002] As an ideal renewable energy source, solar energy has the characteristics of "inexhaustible and inexhaustible". Solar power generation technology has many technical advantages such as environmental protection, safety, and low cost, and is an important focus of future energy strategies for countries around the world. Concentrating photovoltaic power generation technology has attracted much attention among various solar photovoltaic power generation technologies due to its advantages of high conversion efficiency and low cost. The concentrator is an important part of the concentrating photovoltaic system. Designing a concentrator with high concentrating performance is one of the important ways to reduce the overall cost of the solar photovoltaic ...

AI Technical Summary

Problems solved by technology

First of all, some processing needs to be done on the connection of the upper and lower two-stage compound paraboloids, such as figure 2 The transition connection of the Fresnel reflector shown above, to a certain extent, these practices cause the loss of light radiation energy during the reflection process of sunlight, which reduces the comprehensive utilization effect of solar energy

Secondly, since the upper parabolic mirror adopts a symmetrical parabolic structure, the sun rays received by the parabola need to meet a certain fixed angle range. The concentrating effect of the super compound parabolic mirror concentrator varies with the seasons, and it is difficult to exert a good concentrating effect throughout the year

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