Wind-resistant anti-freezing high-concentration photovoltaic-photothermal solar energy comprehensive utilization system

Abstract

The invention discloses a wind-resistant anti-freezing high-concentration photovoltaic-photothermal solar comprehensive utilization system, which comprises a temperature sensor, a liquid pump, a high-concentration photovoltaic-photothermal module, a liquid storage tank and a heat exchanger. According to the device, a high-precision sun tracking system is adopted, sunlight is gathered to a high-efficiency solar photoelectric conversion chip (such as multi-junction gallium arsenide) by using a Fresnel lens, the photoelectric conversion chip is fixed on the upper surface of the metal porous plateheat exchanger in a good heat conduction mode, heat generated in the power generation process of the photoelectric chip is collected and utilized through circulation of an anti-freezing liquid flowing through the metal porous plate heat exchanger, the battery temperature is reduced, the photoelectric conversion rate of the battery is improved, and meanwhile, the overall solar energy utilization rate of the system is improved. The backboard of the high-concentration photovoltaic-photothermal module is covered with a streamline air deflector, so that the wind pressure on the back surface is reduced, and the requirements on the rigidity of a bracket and the precision of the tracking system are reduced. The system has the advantages of being high in photovoltaic-photothermal comprehensive conversion rate, good in wind resistance and the like, and an efficient and feasible solution is provided for comprehensive utilization of solar energy.

Description

technical field [0001] The invention proposes a wind-resistant high-concentration photovoltaic-photothermal solar energy comprehensive utilization system, which specifically relates to a liquid pump speed and tracking system controlled by temperature difference, using a streamlined air guide plate to guide the wind, and using a metal porous flat plate heat exchanger A technology for photovoltaic-photothermal comprehensive utilization. Background technique [0002] In today's society, human beings are faced with the problems of shortage of traditional fossil energy reserves and increasingly severe environmental pollution. Solar energy is huge, widely distributed, clean and non-polluting, and it is bound to become the focus of future energy utilization. Traditional photovoltaic modules use crystalline silicon cells, which not only has low photoelectric conversion efficiency, but also has low energy density of solar energy itself, and the output power of modules in a certain a...

AI Technical Summary

Problems solved by technology

Traditional photovoltaic modules use crystalline silicon cells, which not only has low photoelectric conversion efficiency, but also has low energy density of solar energy itself, and the output power of modules in a certain area is also low, resulting in relatively high prices for photovoltaics, which limits the development and promotion of photovoltaic utilization.

Images