Temperature difference power generation device based on solar interface evaporation
A technology of thermoelectric power generation and solar energy, which is applied in solar thermal power generation, steam generation method using solar energy, solar thermal energy and other directions, can solve the problems of unapplied and impossible to realize thermoelectric power generation and interface evaporation at the same time, so as to improve the utilization efficiency and improve the Compactness, overcoming the effect of low evaporation efficiency
Active Publication Date: 2021-03-26
XI AN JIAOTONG UNIV
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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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Embodiment 1
[0017] The technical solution adopted in the invention includes a thermoelectric power generation structure, a solar energy collection structure, an interface evaporation structure and a water storage structure.
[0018] The thermoelectric power generation structure includes a porous thermoelectric float (5) and a power storage device (8). The porous thermoelectric float (5) is made of light thermoelectric materials such as carbon nanotube thermoelectric materials. When the device absorbs solar radiation and evaporates at the interface, the solar radiation heat directly heats the upper interface (9) of the porous thermoelectric float, causing it to heat up rapidly. The liquid water continuously permeates upwards under the action of capillary action and the wicking action of the hydrophilic fiber (4), penetrates from the lower interface (10) of the porous thermoelectric float to the upper interface (9) through the pores, and is heated intensively at the upper interface (9) , an...
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The invention discloses a temperature difference power generation device based on solar interface evaporation. The temperature difference power generation device comprises a solar energy collection structure, an interface evaporation structure, a temperature difference power generation structure and a water storage structure. The solar energy collection structure comprises a solar energy absorption layer, a transparent cover and a heat insulation layer. Solar radiation energy is converted into heat energy and directly heats upper interfaces of porous thermoelectric floaters. The interface evaporation structure comprises one porous thermoelectric floater and hydrophilic fibers, wherein liquid water permeates to the upper interface from the lower interface of the floater through a hole path,is intensively heated and is converted into high-temperature steam. The temperature difference power generation structure mainly comprises the other porous thermoelectric floater and a power storagedevice, wherein the porous thermoelectric floater generates power through the gas-liquid temperature difference between the upper interface and the lower interface and stores the power in the power storage device. The water storage structure is used for collecting condensed high-temperature steam. The temperature difference power generation device can be used for power generation, seawater desalination or water purification is achieved, and conversion from solar energy to electric energy, heat energy and the like is achieved.
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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IPC IPC(8): F22B1/00F24S20/20H02N11/00
CPCF22B1/006F24S20/20H02N11/002Y02E10/40Y02A20/142
Inventor 马挺陈斯蔚许金海张瑜轩张斌王培宇
Owner XI AN JIAOTONG UNIV