Speaker
Description
Under the general trend of energy reform and utilization of renewable energy, the key role of hydrogen energy has been becoming increasingly prominent. The IEA report highlights hydrogen as an integral part of net zero emissions, and many countries are developing strategies to incorporate hydrogen into the major energy plans. Hydrogen is an ideal efficient clean energy, which can be used in fuel cell vehicles and other new energy power. In addition, in the field of cryogenics and refrigeration, such as aerospace, superconductivity technology, high-energy physics and other big scientific devices, hydrogen is commonly used as a cryogenic working medium, but also as rocket propellant, and liquid phase can be used as coolant.
In the hydrogen energy industry chain of production-storage-transportation- utilization, compared with gas phase at high pressure, liquid hydrogen has advantages such as high density, low transportation cost, high purity of vaporization and short filling time, which make it more suitable for the large-scale development of hydrogen energy. Liquid hydrogen can also be used as an energy storage medium, providing cold energy and electricity to smooth out fluctuations in renewable energy generation and reduce abandonment of wind and light.
In this article, a model and analysis of energy storage process using liquid hydrogen was established, including purification and liquefaction, liquid hydrogen storage, pressurized vaporization, cold energy utilization, power generation output and other processes, selecting appropriate methods and equipment, systematically contacting all aspects of liquid hydrogen energy storage and application, evaluating its efficiency, economy, environmental protection and expansibility, and comparing it with other energy storage methods, such as thermal energy storage and electric energy storage. Their application scenarios and development prospects were analyzed, seeking solutions on how to rationally and efficiently utilize liquid hydrogen energy storage and reduce costs, so as to provide new ideas for the actual storage and application of hydrogen energy.
