A thermoelectric power generation device based on solar interface evaporation

Abstract

The invention discloses a thermoelectric power generation device based on solar interface evaporation, which comprises a solar energy collection structure, an interface evaporation structure, a thermoelectric power generation structure and a water storage structure. The solar energy collection structure includes a solar energy absorbing layer, a transparent cover and a heat insulating layer. The solar radiation energy is converted into thermal energy and directly heats the upper interface of the porous thermoelectric float; the interface evaporation structure includes the porous thermoelectric float and hydrophilic fibers. Liquid water permeates from the lower interface of the float to the upper interface through the pores, and is heated intensively and converted into high-temperature steam; the thermoelectric power generation structure mainly includes a porous thermoelectric float and an electrical storage device. The porous thermoelectric float utilizes the gas-liquid temperature difference between the upper and lower interfaces to generate electricity and store it in the power storage device; the water storage structure is used to collect the condensed high-temperature steam. The invention can be used to generate electricity, realize seawater desalination or water purification, and realize conversion of solar energy into electric energy and thermal energy.

Description

technical field [0001] The invention relates to a thermoelectric power generation device and an interface evaporation device based on solar energy, in particular to a solar thermoelectric evaporation device used in the fields of energy, chemical industry, environmental protection and the like. Background technique [0002] In solar-driven evaporation systems without concentration, such as typical solar stills, heat generation occurs at the surface of the absorber, while steam generation occurs elsewhere in the system. This separation of heat and steam production results in a drop in temperature from heat production to the evaporation surface, greatly increasing heat loss, and leads to relatively low evaporation efficiencies of only 30-45% in solar stills. [0003] In recent years, an interfacial evaporation technique has been proposed in open literature to improve the thermal localization of the liquid surface, and an evaporation efficiency of about 90% has been successfully...

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Problems solved by technology

The comparison file is only a closed system, so it is naturally impossible to realize thermoelectric power generation and interface evaporation at the same time, nor can it be applied to the above fields

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