Photo-thermal steam power generation system based on wide-spectrum light source

Abstract

The invention discloses a photo-thermal steam power generation system based on a wide-spectrum light source. The system adopts a wide-spectrum absorption material to convert light energy of the wide-spectrum light source into heat energy to heat water to generate high-temperature steam, and the high-temperature steam acts on the hot end of a thermoelectric generator to form a temperature difference with the cold end of the thermoelectric generator. Because of the Seeback effect, the thermoelectric generator obtains electric energy, the system finally achieve efficient conversion from solar energy to heat energy and from heat energy to electric energy. In the daytime, part of the electric energy generated by the thermoelectric generator is transmitted to a power grid or a user, the other part of the electric energy generated by the thermoelectric generator is transmitted to a capacitor for charging and energy storage. At night, the electric energy generated by discharging the capacitoris transmitted to the power grid. The photo-thermal steam power generation system has the advantages of the simple structure, the low cost, the portability, the environmental protection and the like.

Description

technical field [0001] The invention belongs to the fields of solar energy utilization and photothermal steam power generation, and in particular relates to a photothermal steam power generation system based on a wide-spectrum light source. Background technique [0002] Electricity is indispensable in modern society. It is widely used in various fields such as power, lighting, chemistry, textiles, communications, broadcasting, etc. It is the main driving force for the development of science and technology and the leap of the people's economy. significant role. As of 2000, the total power generation of thermal power, hydropower and nuclear power in my country reached 1,355.6 billion kwh, ranking second in the world. China's current power generation installed capacity ratio is: coal power 73%, hydropower 14.6%, nuclear power 2.4%, gas power 2.3%, and other 7.7%. [0003] However, with the continuous development of social economy and the continuous progress of science and tec...

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Problems solved by technology

[0007] Purpose of the invention: In view of the problems of large occupied area, high manufacturing and operating costs, destruction of ecological balance, and low photothermal efficiency in the above-mentioned prior art, the present invention provides a photothermal steam power generation system based on a wide-spectrum light source

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