A thermoelectric power generation device based on radiation cooling and high-efficiency absorption of solar energy

Abstract

A thermoelectric power generation device based on radiative cooling and high-efficiency absorption of solar energy, including a carbon nanoparticle film, a semiconductor thermoelectric power generation sheet assembly, a radiation cooling film, a support column arranged under the semiconductor thermoelectric power generation sheet assembly, and sunlight reflected to the carbon nanoparticle The reflective concentrator on the lower surface of the film, the semiconductor thermoelectric sheet assembly includes an upper insulating heat conducting plate I, a semiconductor thermoelectric device, and a lower insulating heat conducting plate II arranged in sequence from top to bottom; the two ends of the semiconductor thermoelectric device are sequentially connected with a load and a data acquisition instrument; the radiation cooling film is attached to the upper surface of the upper insulating heat conducting plate I, and the carbon nanoparticle film is attached to the lower surface of the lower insulating heat conducting plate II. The radiation cooling end of the device achieves a lower temperature through radiation heat exchange with outer space, which can be more than ten degrees lower than the ambient temperature, so that the two ends of the semiconductor thermoelectric device form a large temperature difference and voltage, which solves the problem of traditional heat dissipation. The heat exchange between the sink and the environment per unit time is small.

Description

technical field [0001] The invention relates to a power generation device, in particular to a thermoelectric power generation device based on radiation refrigeration and high-efficiency absorption of solar energy. Background technique [0002] Solar thermal utilization is the earliest and most mature form of human utilization of solar energy. As a clean and renewable energy, solar energy is an ideal alternative energy source for fossil fuels due to its abundant reserves, green environmental protection, and wide distribution, and has been widely used in various fields. [0003] Thermoelectric power generation technology is a solid-state energy conversion technology based on the Seebeck effect, which has the characteristics of simple structure and high reliability. The Seebeck effect, also known as the first thermoelectric effect, refers to the thermoelectric phenomenon in which the potential difference between two substances is caused by the temperature difference between tw...

AI Technical Summary

Problems solved by technology

However, in this patent, the amount of heat exchange between the heat sink and the environment per unit time is small, and the temperature difference between the cold end and the environment is small, so that the temperature difference between the hot end and the cold end after the light energy is converted into heat energy is small, so that The electromotive force generated by the semiconductor thermoelectric generator is small

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