such units are not made as 3 phase helically wound assemblies, MoSi2 is non-ductile/brittle and very difficult to make and even worse to bond to, and there is still the unanswered problem of how do you bond inconel wire that can survive only to <1350°C to an insulated heating element that is supposed to be at higher temperature?
On 16 October 2014 08:40, John Page <johnp...@comcast.net> wrote: > These might be pretty similar to Rossi's setup. (Google Superthal smu) > Superthal heating modules > > Prefabricated heating modules consisting of vacuum-formed ceramic fibre > with an integral Kanthal Super molybdenum-disilicide (MoSi2) heating > element for up to 1750°C (3180°F) element temperature. > > Geometries > Superthal heating modules are available in a variety of geometries and > standard sizes. Tailor-made modules can be supplied to optimize the design > and function of the particular application. > Muffles > Cylinders > Half cylinders > Radiating panels > High-power reflectors > > On October 15, 2014 2:23:03 PM Alan Fletcher <a...@well.com> wrote: > >> *From: *"ChemE Stewart" <cheme...@gmail.com> >> *Sent: *Wednesday, October 15, 2014 11:08:42 AM >> >> > Me too, good job. Tube in a tube reminds of the model rockets I used to >> build. Fin supports between tubes might explain the wider dark band seen >> as a spiral?. Do you think a lot of the heat might be discharged in a >> space between tubes and out the ends? Or are the ends completely >> sealed? >> >> The fins are too fine to be a source of the bands. And the ends are >> completely sealed, so the temperature and heat-loss will taper off at the >> ends. >> >> But your .. and your, and your ... guess on the structure and the banding >> is as good as mine. Very frustrating. >> >> >>
