On Sun, Oct 12, 2014 at 8:43 PM, Robert Lynn <[email protected]
> wrote:

... eg if Ø20mm outer wall is at 1200°C (approx max given revised COP of
> around 2 from temp reading that is obviously in error due to non-melting of
> inconel, though could be significantly lower)
>

I've taken a second look at the TIP report, and it's not clear where the
authors learned that the cables are Inconel.  It is possible this was
speculation on their part when they saw the cables, and somehow this guess
was not reexamined and was reported as a fact.  It seems there are certain
alloys that can sustain temperatures of up to 3000+ centigrade [1].  It
might be worthwhile to follow up with the authors on this point.

Eric


[1] http://www.ultramet.com/refractory_metal_coatings.html

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