Full-spectrum solar hydrogen production-hydrogen storage integrated system

Abstract

The invention discloses a full-spectrum solar hydrogen production-hydrogen storage integrated system which comprises a light-focusing part, a photo-electric conversion part, a photo-thermal conversionpart, a hydrogen production subsystem and a hydrogen storage subsystem, wherein the light-focusing part focuses and reflects incident full-spectrum solar to the photoelectric conversion part and thephoto-thermal conversion part; the photo-electric conversion part is used for converting waveband solar energy in band gap fit with the photoelectric conversion part into photo-electric energy; the photo-thermal conversion part is used for converting residual full-spectrum waveband solar energy into photo-thermal energy; in the hydrogen production subsystem, hydrogen is produced by utilizing photo-electric energy to electrolyze water; in the hydrogen storage subsystem, the hydrogen produced by the hydrogen production subsystem is utilized to react with a first reactant for an endothermic reaction of hydrogen absorption; a heat source of the endothermic reaction is the photo-thermal energy; the occurs between nitrogen is utilized to react with a second reactant for an exothermic reaction ofnitrogen absorption; and a reactant-product relationship exists between the first reactant and the second reactant. The integration of full-spectrum hydrogen production and hydrogen storage is realized.

Description

technical field [0001] The invention belongs to the technical field of full-spectrum comprehensive utilization of solar energy, and relates to a full-spectrum solar energy hydrogen production-hydrogen storage integrated system. Background technique [0002] As the renewable energy with the largest reserves, solar energy can continuously provide energy for human production and life. The full spectrum of solar energy can be divided into ultraviolet, visible and infrared bands, among which, the photon energy in the ultraviolet band is the strongest, followed by the photon energy in the visible band, and the photon energy in the infrared band is the lowest. In the process of photovoltaic power generation, due to the matching relationship between photon energy and semiconductor band gap, solar energy in the infrared band does not have the power generation capacity, and solar power generation efficiency in the ultraviolet band is low, which limits the conversion efficiency of sola...

AI Technical Summary

Problems solved by technology

However, in terms of hydrogen storage, there are disadvantages of low hydrogen storage capacity, high cost and high energy consumption.

[0005] Therefore, how to realize the efficient utilization of full-spectrum solar energy and overcome the defects of low hydrogen storage capacity, high cost and high energy consumption in the prior art has become a technical problem that needs to be solved urgently.

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