Hybrid Energy Transfer Line With Liquid Hydrogen and Superconducting $\hbox{MgB}_{2}$ Cable—First Experimental Proof of Concept

Cryogenic design and test results of 30-m flexible hybrid energy transfer line with liquid hydrogen and superconducting MgB2 cable

“…In the Section 1 with passive vacuum superinsulation, heat flow though VSI is 1.2-1.6 W/m, same as was found in [3,4]. As mentioned previously, most of the heat flow in this cryostat resulted from the thermal bridges which were formed by the structural elements such as spacers between the hydrogen channel and vacuum jacket, and also by mounting elements of the sensors (temperature, pressure, etc.).…”

“…The design of the superconducting power cable was similar to that described in [3,4]. It uses a coaxial design made of six flat MgB 2 tapes produced by Columbus superconductor SpA (Genoa, Italy) [7].…”

“…The results of the first in the world experimental proof of concept of joint energy transportation of electricity and liquid hydrogen were presented in [3,4]. The demonstration used a superconducting power cable made of magnesium diboride (MgB 2 ) wires in the main channels with liquid hydrogen used both as a source of chemical energy and a cryogen combined ''hybrid'' energy line with length of 10 m. In this work the critical current of MgB 2 superconducting cable has been determined under forced flow of liquid hydrogen in the temperature range 20-26 K.…”

Hydrogen Storage Technologies for Smart Grid Applications

“…The most likely material to be used is MgB 2 [46], as it demonstrates appropriate structural and superconducting properties. Vysotsky et al [47] performed the first experimental-scale approach using this material. They used Columbus Superconductor MgB 2 wires.…”

Mixed refrigerant cycle with neon, hydrogen, and helium for cooling sc power transmission lines

“…In recent years, several publications suggested the integration of superconducting MgB 2 power transmission lines cooled by liquid hydrogen (LH 2 ) or gaseous helium (GHe) at 20 K into the grid [1][2][3][4][6][7][8]. The simultaneous transfer of electrical and chemical energy seems advantageous if LH 2 is demanded at one end of the transmission line, too.…”