Thermoelectric power generation device based on radiation refrigeration and efficient absorption of solar energy

Abstract

A thermoelectric power generation device based on radiation refrigeration and efficient absorption of solar energy includes a carbon nanoparticle film, a semiconductor thermoelectric power generationsheet assembly, a radiation cooling film, supporting pillars arranged under the semiconductor thermoelectric power generation sheet assembly, and a reflective concentrator reflecting sunlight to the lower surface of the carbon nanoparticle film. The semiconductor thermoelectric power generation sheet assembly includes an upper insulating heat conduction plate I, a semiconductor thermoelectric device and a lower insulating heat conduction plate II arranged in turn from top to bottom. A load and a data collector are connected in turn between the two ends of the semiconductor thermoelectric device. The radiation cooling film is attached to the upper surface of the upper insulating heat conduction plate I, and the carbon nanoparticle film is attached to the lower surface of the lower insulating heat conduction plate II. The radiation refrigeration end of the device can achieve lower temperature by radiation heat exchange with outer space, and the temperature can be 10 more degrees lower than the ambient temperature, so that a large temperature difference and a high voltage are formed at the two ends of the semiconductor thermoelectric device, and the problem of less heat exchange between the traditional heat sink and the environment per unit time is solved.

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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