Solar-driven salinity gradient power generation system and method based on synergistic interaction of capillary force and temperature difference

A synergistic and power generation system technology, applied in chemical instruments and methods, mechanisms for generating mechanical power, machines/engines, etc., can solve problems such as inability to guarantee the stability of electric energy output, unsustainable power generation process, and slow natural evaporation. Achieve significant social and economic benefits, sustainable power output, and improve power generation efficiency
CN112978833AActive Publication Date: 2021-06-18XI AN JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XI AN JIAOTONG UNIV
Publication Date
2021-06-18

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Abstract

The invention discloses a solar-driven salinity gradient power generation system and method based on synergistic interaction of capillary force and temperature difference. Sunlight can continuously provide heat for the system, and a solution can be spontaneously transported upwards under the action of reverse gravity through the capillary action. In the system, a solar seawater evaporation module generates fresh water and concentrated seawater to be used by a power generation module, and the concentration difference of two cavities of the power generation module is maintained. The capillary force in a capillary core of the power generation module enables the solution to be transported to the surface for evaporation against gravity, absorbs sunlight heat and conducts heat, so that the temperature of a first concentration chamber is higher than that of a second concentration chamber, and the concentration of the second concentration chamber is higher than that of the first concentration chamber. Under the synergistic effect of the temperature difference Sore effect, the concentration gradient and the internal capillary force of the cation selective membrane, cations are directionally migrated to the first concentration chamber from the second concentration chamber through a cation selective membrane, and electric energy is continuously output to an external circuit.
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Description

technical field

[0001] The invention relates to the technical field of power generation, in particular to a salinity difference power generation system and method in which solar energy drives capillary force and temperature difference synergy. Background technique

[0002] Solar energy is an inexhaustible and inexhaustible clean energy. Solar power generation methods can be divided into solar photovoltaic power generation and solar thermal power generation. Solar photovoltaic power generation is safe and reliable, with high energy quality, but the distribution density of irradiated energy is small, and the cost of power generation is high. Solar thermal power generation can realize energy storage and continuous power generation, but it is still in the stage of technological innovation and improvement in our country. In addition, the ocean contains huge energy reserves, including wave energy, tidal energy, ocean temperature difference energy and salt difference energy, which...

Claims

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