Solar chimney power generation system combined with phase-change heat storage technology

Abstract

The invention relates to a solar chimney power generation system combined with a phase-change heat storage technology. The solar chimney power generation system comprises a solar chimney, a solar heat collector and a turbine generator which is arranged at the bottom of the solar chimney, wherein a phase-change heat storage material is spread at the bottom of the solar heat collector. At night, power generated by the turbine generator is driven by the heat released with the aid of the phase-change heat storage material, the solar chimney power generator system is combined with the phase-change heat storage technology, so that the advantages of both the solar chimney power generator system and the phase-change heat storage technology are brought into the furthest role, the electricity output of the solar chimney, in particular the electricity output at night can be increased, the problem in the traditional solar chimney power generation system can be effectively solved, the rate of multipurpose utilization of solar energy is increased, meanwhile, the power generation cost is reduced, and the application scope of the solar chimney power generation system is expanded.

Description

technical field [0001] The invention relates to energy and electric power utilization technology, in particular to a solar thermal wind power generation system combined with phase change heat storage technology. Background technique [0002] In today's increasingly prominent energy problems, the development and utilization of solar energy has become the focus of achieving sustainable energy development. Solar power generation is a new type of renewable energy. Its production process will not produce environmental pollution, nor will it consume other earth resources or cause the global warming effect, so it has been valued by countries all over the world. [0003] There are two ways to utilize solar energy: photoelectric conversion and passive utilization (photothermal conversion). Photoelectric conversion mainly converts solar energy into electrical energy through photovoltaic cells, but the existing photovoltaic cells generally have disadvantages such as low efficiency, lo...

AI Technical Summary

Problems solved by technology

[0008] The present invention aims at the problem of low power generation efficiency of the current solar thermal wind power generation system, especially at night, and proposes a solar thermal wind power generation system combined with phase change heat storage technology. Combined, the respective advantages of the two are played to the greatest extent, which can increase the power generation of the hot air chimney, especially at night, can effectively solve the problems existing in the current hot wind power generation system, improve the comprehensive utilization of solar energy, and reduce Reduce the cost of power generation and expand the application range of solar thermal wind power generation system

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