Ocean energy, solar energy and hydrogen energy-based complementary power generation system

Abstract

The invention discloses an ocean energy, solar energy and hydrogen energy-based complementary power generation system. Hydrogen is prepared through electrolysis of water by employing solar energy and ocean energy as energy sources and seawater a hydrogen source; a renewable water resource is converted into clean and efficient hydrogen energy; obtained high-energy density hydrogen is stored into an organic hydrogen storage material; the organic hydrogen storage material is prepared from N-methylindole, N-ethylindole, diazafluorene and N-ethyl carbazole; the hydrogen storage density is high; hydrogen absorption and hydrogen energy desorption are reversibly carried out; the obtained hydrogenated organic hydrogen storage material can be transported to any place through a pipeline; the hydrogen removed from an organic hydrogen storage device is directly applied to a fuel cell; and the hydrogen energy is converted into electric energy through a hydrogen fuel cell or is used for direct heat supply. The power generation system is convenient and flexible; the solar energy is combined with the ocean energy; the energy is converted into the electric energy through the fuel cell and supplies a terminal device with electricity through hydrogen energy storage and energy transfer; the power generation system is stable and reliable; and the energy utilization rate is high.

Description

technical field [0001] The present invention relates to the energy field, and more specifically relates to a complementary power generation system based on ocean energy, solar energy and hydrogen energy. Background technique [0002] Due to the limited storage and non-renewability of fossil fuels, the world may face serious energy shortages in the near future. It is imminent to develop new renewable energy sources. Some existing renewable energy sources have their limitations. Wind energy is affected by the environment. The climate has great influence and is very unstable; ocean energy is greatly limited by the influence of geographical factors, solar energy can only generate electricity when there is light, and cannot generate electricity at night, and it is impossible to achieve uninterrupted power supply around the clock. The energy density of hydrogen is as high as 120MJkg-1, the calorific value of hydrogen is 142351kJ / kg, which is three times the calorific value of gaso...

AI Technical Summary

Problems solved by technology

However, most of the electric energy used to electrolyze water to produce hydrogen today comes from fossil energy power generation, which is not only expensive, but also produces harmful gases that are harmful to the environment

[0003] Hydrogen is in a gaseous state at normal temperature and pressure, has the lowest density, and is flammable, explosive, and easy to diffuse. It is difficult to achieve safe storage and transportation of hydrogen under mild conditions. Therefore, the storage and transportation of hydrogen have always restricted the development of hydrogen energy. Bottleneck, each of these existing hydrogen storage technologies has certain deficiencies, and cannot fully meet the needs of the future hydrogen energy economy; the efficiency of high-pressure gaseous hydrogen storage is very low, and even when pressurized to 30MPa, the mass hydrogen storage density is still less than 3% , and there are unsafe factors such as container explosion and hydrogen leakage during transportation and use; low-temperature liquid hydrogen storage technology must be equipped with corresponding cooling devices, its mass hydrogen storage density is limited, and gaseous hydrogen is cooled to liquid Hydrogen consumes a lot of energy. In order to maintain a low temperature environment, the energy equivalent to 30% of the mass energy of liquid hydrogen will be consumed, resulting in a high cost of this hydrogen storage method; for metal hydride hydrogen storage, most metal hydrides are either Very stable, or very unstable, its lattice structure is easily destroyed after several hydrogenation cycles

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