Hydrogen cryomagnetics for decentralised energy management and superconductivity

Glowacki, B. A.; Nuttall, W. J.; Hanley, E.; Kennedy, L. and O’Flynn, D. (2015). Hydrogen cryomagnetics for decentralised energy management and superconductivity. Journal of Superconductivity and Novel Magnetism, 28(2) pp. 561–571.

DOI: https://doi.org/10.1007/s10948-014-2660-7

Abstract

As we enter the second century of superconductivity, helium still prevails as the cryogenic coolant of choice. What does the future of helium hold? What can be done to avoid the squandering of this precious resource? In our presentation, we will discuss the use of cryogenic hydrogen originated from renewable and low-CO₂ emission sources. We suggest that 20 K of liquid hydrogen can ultimately displace helium as an indirect coolant in a range of superconducting electromagnetic devices. As is already well documented, superconductors have much potential underpinning the future developments in transportation, energy supply/storage and also in medical applications. Although superconductors that can operate at liquid hydrogen temperatures, such as MgB₂ and YBa₂Cu₃O₇, are not yet truly commercially available, research indicates that these will be feasible in the near future.

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