A dual-frequency division photothermal-photovoltaic-thermoelectric coupling solar energy full-spectrum utilization system

Abstract

A double-frequency-division type photothermal-photovoltaic-thermoelectric coupling solar full spectrum utilization system comprises a condenser, a double-frequency-division type heat collector and a photovoltaic-thermoelectric composite device. The double-frequency-division type heat collector comprises outer layer glass, a glass heat collector, selective projection glass and bottom layer glass. The photovoltaic-thermoelectric composite device comprises a photovoltaic battery, a thermoelectric component and a heat dissipating channel. According to the solar full spectrum utilization system, the thickness of the glass heat collector can be decreased through double frequency division, the portability of the whole device is improved accordingly, and the absorption efficiency of selective absorption fluid (water) can be improved. Meanwhile, higher power generation efficiency can be obtained by utilizing the photovoltaic / thermoelectric composite device. In addition, not only cooling can be conducted on a cold end of the thermoelectric component, but also the selective absorption fluid (water) can obtain a higher temperature by conducting secondary heating on the selective absorption fluid (water). Therefore, the double-frequency-division type photothermal-photovoltaic-thermoelectric coupling solar full spectrum utilization system is low in cost and wide in application range, and has large social and economic benefits and wide marketing prospects.

Description

technical field [0001] The invention belongs to the technical field of solar energy utilization, and relates to a double-frequency division heat collector and a photovoltaic-thermoelectric composite power generation device, in particular to a double-frequency division type photothermal-photovoltaic-thermoelectric coupling solar energy full-spectrum utilization system . Background technique [0002] my country is in the process of rapid development of industrialization and urbanization, and energy and environmental issues have seriously restricted my country's sustainable development. Therefore, the research and utilization of renewable energy has become an inevitable choice to deal with my country's energy and environmental challenges. Among the currently available renewable energy resources, solar energy has the advantages of large total resources, wide distribution, clean use, and no resource depletion. In 2006, my country promulgated and implemented the "Renewable Energ...

AI Technical Summary

Problems solved by technology

However, when water is used as a selective absorption fluid, although the frequency division range of the spectrum is better, it requires a longer absorption path, resulting in the entire device being too large and the heat absorption efficiency low

Nanofluids have better absorption characteristics, but the frequency division range of the spectrum is unstable and not ideal, resulting in low photovoltaic conversion efficiency.

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