Solar light-condensing frequency-division photoelectric and thermoelectric co-generation device

Abstract

The invention relates to a solar light-condensing frequency-division photoelectric and thermoelectric co-generation device which comprises a functional fluid module, a photoelectric utilization system, a thermoelectric utilization system and a waste heat utilization system. Functional fluid flows through the front side of a solar cell panel pack, is heated when achieving a solar frequency-divisionfunction, then flows through the hot end of a thermoelectric material and then flows through the reverse side of the solar cell panel pack after being subjected to waste heat utilization so as to implement cooling on the solar cell panel pack, and finally, by a flow regulation valve and a circulating pump, circulation is formed; and a self-cleaning high-transmittance aerogel-coated functional fluid passage which achieves a frequency-division function achieves functions of preventing dust and improving transmittance of the sunlight when reducing heat loss of a system. According to the invention, by frequency-division utilization on solar energy, on the basis of improving efficiency of a solar cell, the thermoelectric utilization system, the waste heat utilization system and a self-cleaninghigh-transmittance aerogel thermal insulation module are introduced, so that efficient utilization on a full spectrum of the solar energy is implemented.

Description

technical field [0001] The invention belongs to the technical field of solar energy composite utilization, and relates to a solar photoelectric-thermoelectric-photothermal comprehensive utilization technology, in particular to a solar concentrating frequency-division photoelectric thermal power cogeneration device. Background technique [0002] The energy crisis and environmental pollution are putting more and more pressure on our human society, and people's demand for a new type of green and efficient energy is becoming more and more urgent. As a green and pollution-free energy source, solar energy is inexhaustible. According to calculations, the energy that the sun irradiates on the earth every second is equivalent to 5 million tons of coal. Therefore, how to efficiently develop solar energy is of great significance. [0003] At present, the utilization of solar energy is mainly realized through photothermal, photoelectric, photochemical, photobiological conversion and ot...

AI Technical Summary

Problems solved by technology

Power generation through photovoltaic cells is the most common way to use photovoltaics. However, for fixed semiconductor materials, solar cells can only effectively use sunlight in specific bands, and sunlight in other bands will heat solar cells, resulting in temperature rise. Efficiency drops and reduces its service life

The traditional PHOTOVOLTAIC / THERMAL (PV / T) composite system recycles battery heat while improving the efficiency of solar cells by arranging cooling fluid on the back of the battery, but limited by the operating temperature of solar cells, the recovery just low grade heat

On the other hand, in order to prevent the core components of the solar panel group from being damaged or the power generation efficiency being affected by dust, a layer of glass is usually added to the surface of the solar panel, but the surface of this layer of glass will reflect and cause the loss of input radiation. Dust accumulation will occur, which will affect the efficiency of photovoltaic cells and need to be cleaned regularly

Images