New York, NY, November 13, 2018 --(PR.com
)-- Almost 100 years after since 1911 when Dutch physicist Heike Onnes discovered that mercury bears an electrical resistance of zero when cooled in liquid helium, superconductors were then finally rolled out for utilization in national electricity grids. Superconductivity has brought into being many thrilling applications. The power of Storing and Transferring are an integral part of several of these applications. The scientific study performed by professor-author Hai-Hu Wen talks about some such exciting applications and some limitations.
Further deciding to investigate on a promising property for a superconductor taking into account the 2 powers of superconductivity is found that it can carry non-dissipative current. This makes the superconductor to have the utmost potential to produce massive magnetic field when making the superconductor into a magnet. This potentiality enables for favorable application in the medical treatment, high-energy stimulation, new generation maglev transport, and regulated nuclear fusion, etc.
That said, for a superconductor to carry the non-dissipative super current, a boundary, referred, the irreversibility line Hirr(T), plays an important role. Hai-Hu Wen stated in a study that if a superconductor can transfer higher non-dissipative supercurrent with a higher irreversibility magnetic field, it will have a vantage point for applications.
Probing into the power applications, the author tracked down that the key factor restraining the high power applications for a type-II superconductor is the – irreversibility line Hirr(T) that bounce back the very boundary of resistive dissipation of phase diagram in magnetic field vs. temperature.
In cuprate lineage, the Bi-, Y-, Hg- and Tl-based systems have superconducting transition temperatures surpassing the liquid nitrogen boiling temperature (~77K). Even so, the toxic elements Hg and Tl in the latter two systems spiritedly restrain the prospective applications. The Bi-based (2223) system is nontoxic, but the irreversibility magnetic field is extinguished in the liquid nitrogen temperature zone. Having this in view, what author views as an ideal stance so far is – relying on the YBa2Cu3O7 (Tc~90 K) system which is not only nontoxic but also has a comparatively high irreversibility magnetic field. It is discovered that the irreversibility magnetic field is exceptionally high among all superconductors and hence renders a strong potential of applications in the liquid nitrogen temperature boundaries.
Since these compounds bear "zero resistance," they can transport a "lot" of current with "no" loss and fundamentally they have the capacity to store energy in the form of a current loop "forever!" Say this fundamental is factual; the only fee would be to keep the compounds below the critical temperature and to transform the energy to a chosen form. High power applications of superconductors have been recognized since the arrival of superconductivity but high field/current capacity depicted in the early 60's.
The author brings into light some of the visionary ideas for the future applications of superconductivity. One of them being, generation of solar power in spheres where it is plentiful and carry it to regions in an intercontinental grid where it is needed. For the reason, the sun shines at any given time somewhere on the earth, this grid would eliminate the necessity for storing energy. Realizing the increasing inflation of the world economy and the very variable currency, the authors of this work guesstimate that this approach would deliver 70% of the electrical power needs at a mere low investment.
Superconductors are principally an impeccable conductor - not a splendid storage. The energy it is capable to store is just the electricity and it is, by first fundamentals, less than what can be compressed in gasoline. So it becomes appropriate when we are out of gasoline and when other storage means like thermal, hydro, etc. are comparable in politics of implementation.
Superconducting Magnetic Energy Storage (SMES) stands as a promising candidate since it is a far more generic way of storing energy and allows us to skillful redeem it, with some practical restrictions.