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Abstract Under the general trend of energy reform, the key role of hydrogen energy has been becoming increasingly prominent. Hydrogen is not only an ideal efficient clean energy, but also commonly used as a cryogenic working medium, in the field of cryogenics and refrigeration. Compared with gas phase at high pressure, liquid hydrogen (LH 2 ) has advantages such as high density and low transportation cost, which make it more suitable for large-scale development. As an energy storage medium, LH 2 provides cold energy and electricity to smooth out fluctuations and reduce abandonment of wind and solar. However, there are few studies on the comprehensive LH 2 industry chain of production-storage-transportation-utilization. In this article, a model and analysis of the energy storage process utilizing LH 2 is established. This includes purification and liquefaction, storage and transportation, regasification, power generation, and other related processes. The selection of appropriate methods and equipment is systematically addressed. Furthermore, an evaluation is conducted on its efficiency, economy, environmental impact and expansibility, in comparison with other energy storage methods. Ultimately, these findings aim to seek solutions for rationalizing efficient and low-cost utilization of LH 2 energy storage, and provide novel insights into the practical application of hydrogen energy.
Zhang et al. (Wed,) studied this question.