Solar power generation apparatus and method thereof

Abstract

The present invention relates to a solar power generation apparatus and a method thereof, wherein the solar power generation apparatus is composed of a solar energy collector, a solar heat absorber, a heat storing device and an energy converter. According to the method, the heat of solar radiation is collected through one or a plurality of Fresnel lenses. After the solar heat absorber is irradiated by the highly focused light beam, the temperature of the inner phase change material increases gradually and carries large amount of heat. The phase change material after heating is conveyed to a heat tank of the heat storing device. The heat from the high-temperature phase change material heats the high-temperature side of a semiconductor thermopile for forming a temperature difference therebyconverting the heat into electric energy. The solar power generation apparatus and the method of the invention can effectively use the solar energy for generating electric energy and have the advantages of easy application, capability for minimizing, and individualizing the light-heat power generation system, excellent portability, excellent family property, and facility for generalizing the solar energy.

Description

technical field [0001] The invention belongs to the technical field of solar photothermal power generation. Specifically, it is a method and device that can use a condenser lens to focus sunlight, heat a phase-change material, utilize the heat storage function of a high-temperature phase-change material, and provide users with a power generation function through thermoelectric conversion. Background technique [0002] Photovoltaic (PV) refers to the direct conversion of sunlight into electricity. But one problem facing photovoltaic power generation is its instability. There are many factors that can cause this characteristic, for example, night time, changes in weather, etc. Photovoltaic power generation technology has been developed for many years, especially crystalline silicon solar cell power generation, the technology has been quite mature. However, due to the high cost, it is still promoted by developed countries relying on government subsidies. [0003] In 1821, t...

AI Technical Summary

Problems solved by technology

The use of non-renewable energy has the following problems: 1) produce harmful gases, pollute the environment, and accelerate the greenhouse effect; 2) exploit oil and natural gas, which also has a negative impact on the environment; 3) the fossil fuel resources on the earth may eventually be completely consumed as much as possible

[0007] The challenges faced by this type of technology are that it usually requires the acquisition of a large area of ​​land, the impact on the environment needs to be assessed, a huge power transmission system needs to be built, the flexibility is poor, and the investment scale is very large, etc.

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