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 <[email protected]> wrote:
From: "ChemE Stewart" <[email protected]>
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.
