Photothermal conversion film, preparation method thereof and double-layer evaporation structure for solar steam generation

A light-to-heat conversion, thin-film technology, applied in solar thermal power generation, components of solar collectors, solar thermal energy, etc., can solve problems such as the reduction of input energy, reduce heat conduction loss, good interface connection, and improve the performance of solar steam. produced effect
CN110726262AActive Publication Date: 2020-01-24SHAANXI UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
SHAANXI UNIV OF SCI & TECH
Publication Date
2020-01-24

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Abstract

The invention provides a high-performance foam metal-based photothermal conversion film, a preparation method thereof and a double-layer evaporation structure for solar steam generation. The high-performance foam metal-based photothermal conversion film is a CuO@CF or CuO / Ag@CF photothermal conversion film, the CuO@CF or CuO / Ag@CF photothermal conversion film and melamine foam form the double-layer evaporation structure for solar steam generation, then downward conduction heat loss from a solar absorber to underlying water occurring in a single layer evaporation system is reduced, and evaporation efficiency is further improved; and compared with a traditional pure noble metal material film, the CuO / Ag@CF photothermal conversion film has lower cost.
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Description

technical field

[0001] The invention relates to the field of photothermal materials, in particular to a high-performance foam metal-based photothermal conversion film, a preparation method thereof, and a double-layer evaporation structure used for solar steam generation. Background technique

[0002] As the key to efficient light-to-heat conversion, photothermal materials are also the core of solar steam technology. The heat generated by photothermal materials can be used to drive steam generation, which has attracted extensive and intensive research due to its great potential for cost-effective and environmentally friendly water purification.

[0003] Current technologies for producing steam using solar energy rely on the absorption of solar radiation by the surface of the material and the transfer of the accumulated heat to bulk water directly or indirectly through an intermediate heat transfer fluid due to high light loss, high surface heat loss, or the need for a vacuum ...

Claims

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