Solar energy electric heat multistage utilization device based on spectrum frequency division technology

Abstract

The invention relates to the technical field of solar energy utilization, in particular to a solar energy electric heat multistage utilization device based on a spectrum frequency division technology.The solar energy electric heat multistage utilization device based on the spectrum frequency division technology comprises a water storage tank, a heat pipe, a base, a vacuum heat collecting pipe, athin film solar cell panel and a distributed Bragg reflection mirror. The water storage tank and the thin film solar cell panel are arranged on the base; the distributed Bragg reflection mirror and the thin film solar cell panel are correspondingly arranged to form a spectrum response device; the distributed Bragg reflection mirror and the vacuum heat collecting pipe are correspondingly arranged to form a phase-change heat transfer device; the vacuum heat collecting pipe is connected to the heating pipe; and the heating pipe is connected to the water storage tank. The thin film solar cell panel is arranged on the base so as to be used as an optical spectrum frequency divider, and the distributed Bragg reflection mirror is beneficial to improving the spectral response of a solar cell, so that photoelectric conversion on a low-frequency solar energy is realized; and the vacuum heat collecting pipe absorbs a light with the wavelength being larger than an absorption range of the thin filmsolar cell panel so as to carry out photoelectric conversion, so that photoelectric conversion on a high-frequency solar energy is realized.

Description

technical field [0001] The invention relates to the technical field of solar energy utilization, in particular to a solar electric heating multi-stage utilization device based on spectral frequency division technology, using thin-film solar cells as optical spectral frequency dividers, and adding distributed Bragg reflectors to improve the spectral response of solar cells , for light exceeding the absorption spectrum of thin-film solar cells, heat domestic water through heat collection and heat exchange. Background technique [0002] Solar energy, as a sustainable and clean energy source, is an ideal renewable energy source. Among the existing photovoltaic cells, the commercialized crystalline silicon solar cell has the highest photoelectric conversion efficiency, but due to the limitation of material purity and preparation process, the cost is high, and it is difficult to improve the conversion efficiency or reduce the cost; thin-film solar photoelectric conversion cells ca...

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Problems solved by technology

Among the existing photovoltaic cells, the commercialized crystalline silicon solar cell has the highest photoelectric conversion efficiency, but due to the limitation of material purity and preparation process, the cost is high, and it is difficult to improv

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