Power generation equipment and power generation method based on multi-dimensional assembled photothermal conversion phase change material

Abstract

The invention discloses power generation equipment and a power generation method based on a multi-dimensional assembled photo-thermal conversion phase change material. The power generation equipment comprises a one-dimensional carbon substrate and a multi-stage structure carbide growing on the carbon substrate, and the multi-stage structure carbide forms a pore channel in the surface of the one-dimensional carbon substrate; the one-dimensional carbon substrate is provided with a pore channel and a non-polar organic phase-change material adsorbed in the pore channel, the one-dimensional carbon substrate is provided with pi electrons of SP2 hybrid C, the pi electrons and the non-polar organic phase-change material form intermolecular weak interaction, and the non-polar organic phase-change material is selected from any combination of one or more of paraffin hydrocarbon and straight-chain alkane. The photothermal conversion carbon cloth of the steam generation ball can generate heat, so that the temperature of distilled water in the steam generation pool is rapidly increased, the distilled water in the steam generation pool is boiled, the distilled water flows into the steam turbine through the steam output port via the steam communicating pipe, steam turbine blades in the steam turbine are driven to rotate, and the generator is driven to generate electric energy.

Description

technical field [0001] The invention relates to the technical field of composite phase change materials and power generation, and more specifically relates to a power generation device and method based on multi-dimensional assembly of photothermal conversion phase change materials. Background technique [0002] Phase change energy storage uses phase change materials as the carrier, which is the most widely studied type in the field of energy storage technology. Phase change materials have high energy storage density, good circulation, and uniform internal temperature during the phase change process. Therefore, Phase change materials are widely used in cold chain transportation, building energy saving, solar energy storage, electronic equipment, fiber textiles and other fields. The volume of the phase and liquid phase to the container changes greatly, so the phase change material is not easy to be packaged and easy to leak. In order to solve the problem of not being easy to b...

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Problems solved by technology

[0002] Phase change energy storage uses phase change materials as the carrier, which is the most widely studied type in the field of energy storage technology. Phase change materials have high energy storage density, good circulation, and uniform internal temperature during the phase change process. Therefore, Phase change materials are widely used in cold chain transportation, building energy saving, solar energy storage, electronic equipment, fiber textiles and other fields. The volume of the phase and liquid phase to the container changes greatly, so the phase change material is not easy to be packaged and easy to leak. In order to solve the problem of not being easy to be packaged and easy to leak in the work of compared materials, the phase change material can be combined with the carrier by using packaging technology. The prepared composite phase change energy storage materials have good shape and high stability. Therefore, the practicability and safety of solid-liquid phase change materials are effectively guaranteed. Porous materials can be used as the carrier of composite phase change materials, and generally have The characteristics of large specific surface area, developed pore structure, strong adsorption capacity and good thermal stability, and porous materials have one-dimensional, two-dimensional and three-dimensional structures, which can meet the needs of different heat storage fields. Composite phase-change energy storage materials are an optimal method. The porous-based composite shape-setting method uses porous media as a carrier, and uses its own capillary force, surface tension, and hydrogen bond force to stabilize the phase-change material in the pores of the porous medium. , and then improve the stability of the phase change material, the problem of melting and leakage of the phase change material can be effectively solved, but at present, the problem of a single heat storage and transfer method is still common in phase change materials

[0003] As the most effective renewable energy at present, light energy is inexhaustible. However, the intermittent characteristics of light energy limit its use in weak light intensity and at night. Introducing photothermal materials into the composite phase change material system, Obtaining photothermal phase change materials can effectively solve the intermittent problem of energy supply. Photothermal phase change materials can spontaneously perform photothermal conversion during the day and release the absorbed heat at night. Therefore, in replacing traditional energy supply such as coal combustion In terms of heat, it has excellent application prospects. At the same time, the heat absorption and release characteristics of phase change materials can keep the material at a constant temperature, which can effectively improve the problem of uneven heat distribution in traditional heating methods. Photothermal materials pass through during the day. When light is irradiated, the molecule will change from the low orbital state to the high orbital state, causing electrons to transition from the ground state to the excited state. After that, the excited electrons release energy back to the ground state through processes such as non-radiative relaxation, energy transfer or quenching. The whole process The absorption and release of heat is achieved through electronic transitions, and then the photothermal conversion of solar energy is realized and enhanced. However, the current photothermal phase change materials still have the problem of low photothermal conversion efficiency. In addition, the current composite phase change materials are due to porous carriers. The confinement effect of the phase change core material leads to the inability to fully release the latent heat

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