Heat conduction asphalt concrete road surface temperature difference power generation system

Abstract

The invention relates to an urban asphalt concrete road surface temperature difference power generation system, which is formed by three subsystems, namely a solar heat collecting system, a power generation system and an electric energy storing and converting system, wherein the solar heat collecting system is used as the heat source of the whole system and is mainly formed by a heat collecting asphalt concrete layer doped with heat conduction materials such as graphite and a heat conduction aluminum sheet 3, which are paved on a road bed; the power generation system is formed by multiple semiconductor temperature difference power generation sheet modules 14 and heat conduction silica grease 15 for enhancing heat conduction; the electric energy storing and converting system comprises a DC (direct current) / DC converter 7, an inverter 9 and a storage battery bank 8. The system utilizes a semiconductor temperature difference power generation sheet 16 to convert the heat collected from the road surface to be directly used electric energy; meanwhile, the excessively fast temperature rising on the road surface in the daytime in summer is alleviated, and the temperature dropping of the road surface at night is accelerated, so the thermal stress damage to the road surface caused by temperature gradient is reduced, the use performance and the durability of the road surface are improved and the urban heat island effect is alleviated.

Description

technical field [0001] The invention relates to self-energy pavement technology, in particular to a heat-conducting asphalt concrete pavement temperature difference power generation system. Background technique [0002] Asphalt pavement has the advantages of low fuel consumption, low noise, good skid resistance, and low vehicle wear. It has been widely used in urban roads, expressways, bridge deck paving, and airport runways. Asphalt pavement accounts for more than 80% of the existing roads in the world; as of the end of 2012, the total mileage of expressways in my country has exceeded 96,000 kilometers, ranking second in the world, and more than 85% of expressways use asphalt pavement. [0003] As a building structure directly exposed to the natural environment, the asphalt pavement is directly affected by natural factors such as solar radiation, temperature, and wind, and will receive and accumulate a large amount of heat energy on the road surface. Because it is a black p...

AI Technical Summary

Problems solved by technology

Because the contact area between the water flow pipe network and the asphalt pavement is too small, the heat conduction effect is poor, which affects the power generation efficiency of the system, and because the performance requirements of urban asphalt roads have high requirements for pipe materials, general pipe materials cannot meet the power generation system. requirements, thus greatly limiting the promotion of urban asphalt pavement temperature difference power generation system

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