A hydrogen power system based on heat self-balancing solid hydrogen source reactor

Abstract

The invention discloses a hydrogen power system based on a heat self-balancing solid hydrogen source reactor. The hydrogen power system comprises a hydrogen source, the heat self-balancing solid hydrogen source reactor, a hydrogen fuel cell, an air compression system and a vacuum pump; and an inlet of the heat self-balancing solid hydrogen source reactor is connected with the hydrogen source, an outlet of the heat self-balancing solid hydrogen source reactor is divided into two paths, one path is connected with the hydrogen fuel cell, and the other path is connected with the vacuum pump. According to the hydrogen power system, a phase-change material can store heat released by hydrogen absorption reaction in a latent heat form and release the heat during hydrogen desorption reaction, thus,heat in the hydrogen absorption process is used for the hydrogen desorption process, heating and cooling devices are omitted, the cost is reduced, the energy utilization rate is increased, and meanwhile, the hydrogen absorption and desorption reaction rate can be increased.

Description

technical field [0001] The invention belongs to the field of hydrogen power, and in particular relates to a hydrogen power system based on a heat self-balancing solid-state hydrogen source reactor. Background technique [0002] Extensive use of fossil fuels not only aggravates the consumption of traditional energy sources, but also causes serious pollution to the environment. Hydrogen energy reserves are abundant, the combustion calorific value is high, and the pollution caused by the combustion products to the environment is extremely weak. However, the current restrictive factor for the large-scale application of hydrogen mainly lies in the immature hydrogen storage technology, which makes it difficult to store and transport hydrogen quickly, safely and efficiently. At present, there are three main hydrogen storage methods: high-pressure gas hydrogen storage, low-temperature liquid hydrogen storage and solid hydrogen storage. Solid hydrogen storage, especially metal hydr...

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Problems solved by technology

Although this method combines phase change materials and applies the advantages of phase change materials, it increases the heat transfer resistance between the two, and the phase change heat storage rate is low, which slows down the reaction rate of the entire system and reduces the reaction efficiency. The heat self-balance of the system cannot be achieved, which is not conducive to the commercial application of hydrogen storage systems (International Journal of Hydrogen Energy, 2013, 38(23): 9766-9711)

[0005] It can be seen that there are some defects in the above-mentioned existing various hydrogen storage reactors, which have limitations in practical industrial applications.

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