Comments on: New Superconducting Magnet Breaks Records with a Lower Carbon Footprint http://cleantechnica.com/2009/12/02/new-superconducting-magnet-breaks-records-with-a-lower-carbon-footprint/ Clean Tech News & Views: Solar Energy News. Wind Energy News. EV News. & More. Mon, 29 Dec 2014 10:14:00 +0000 hourly 1 http://wordpress.org/?v=4.0.1 By: H.W. Weijers http://cleantechnica.com/2009/12/02/new-superconducting-magnet-breaks-records-with-a-lower-carbon-footprint/#comment-8005 Thu, 03 Dec 2009 17:16:21 +0000 http://cleantechnica.com/?p=4109#comment-8005 The statement you make that “YBCO does not need a low operating temperature”, is a bit misleading in this context. YBCO is superconducting at relatively high temperatures. But, like all superconductors, its current carrying properties and magnetic field tolerance improve as the temperature is reduced. The level of performance required for the 32 T magnet demands that the YBCO is operated at low temperatures, just like the traditional low temperature superconductors.

There are many applications of YBCO in the 30 K, 50 K or even 80 Kelvin temperature range, but high field magnets like the 32 T discussed here is not one of those.

]]> By: H.W. Weijers http://cleantechnica.com/2009/12/02/new-superconducting-magnet-breaks-records-with-a-lower-carbon-footprint/#comment-25236 Thu, 03 Dec 2009 17:16:00 +0000 http://cleantechnica.com/?p=4109#comment-25236 The statement you make that “YBCO does not need a low operating temperature”, is a bit misleading in this context. YBCO is superconducting at relatively high temperatures. But, like all superconductors, its current carrying properties and magnetic field tolerance improve as the temperature is reduced. The level of performance required for the 32 T magnet demands that the YBCO is operated at low temperatures, just like the traditional low temperature superconductors.

There are many applications of YBCO in the 30 K, 50 K or even 80 Kelvin temperature range, but high field magnets like the 32 T discussed here is not one of those.

]]> By: Henry Gibson http://cleantechnica.com/2009/12/02/new-superconducting-magnet-breaks-records-with-a-lower-carbon-footprint/#comment-8004 Thu, 03 Dec 2009 17:01:19 +0000 http://cleantechnica.com/?p=4109#comment-8004 The proposed super conductor does require a low temperature but not as low as the original metalic superconductors. The energy cost of keeping super conductors cold must be balanced against the losses in ordinary conductors, but in the case of research magnets, the cost for cooling is usually cheaper if the the magnetic field can be achieved. Electrical distribution with superconductors is not usually cheap enough and large cheap conductors such as sodium could be used for underground cables more economically. Modern semiconductors allow for efficient transmission of electrical energy with high voltage direct current. ..HG..

]]> By: Henry Gibson http://cleantechnica.com/2009/12/02/new-superconducting-magnet-breaks-records-with-a-lower-carbon-footprint/#comment-25235 Thu, 03 Dec 2009 17:01:00 +0000 http://cleantechnica.com/?p=4109#comment-25235 The proposed super conductor does require a low temperature but not as low as the original metalic superconductors. The energy cost of keeping super conductors cold must be balanced against the losses in ordinary conductors, but in the case of research magnets, the cost for cooling is usually cheaper if the the magnetic field can be achieved. Electrical distribution with superconductors is not usually cheap enough and large cheap conductors such as sodium could be used for underground cables more economically. Modern semiconductors allow for efficient transmission of electrical energy with high voltage direct current. ..HG..

]]>