Since MFMP is building a replica of the IH reactor as shown in the Lugano test, one of the proposals I have made is to begin with a single-phase dummy reactor for primary purpose of gaining data on the temperature / convection behavior. I propose that the heater be capable of driving the alumina tube section between the insulating mounting ends to 1400C. The alumina apparatus could be outfitted with 8 thermocouples of type R, S, or B and the data from these gathered with an Omega DAQ. At the same time an Optris camera would be monitoring the setup in a manner similar to the Lugano report. This should provide supporting or refuting evidence in the thermometry of the Optris with an alumina tube. The thermocouples will have to be sealed from air in alumina and glued to the alumina reactor with a high alumina cement.
Does anyone have experience with these thermocouple types at temperatures above 1000C? The single phase drive could be an 120VAC source with a >10A triac controller - it would be cheap because it is a resistive load. We would still need to assess input power. Probably could do that OK with a Kill-a-Watt meter (calibrated). If something better was available, it would certainly be used. The most important point is not the energy balance in this case, but the correlation between the thermocouple measurements and the Optris IR thermometry. Additionally, a coiled secondary heater could be placed on axis for "excess heat" simulation, controlled with a separate supply. I would be interested to hear if the Vortex community thinks this experiment would be valuable and if there are any other suggestions for a dummy test. On Mon, Oct 27, 2014 at 10:36 PM, David Roberson <[email protected]> wrote: > ... > > Now if we can only settle the temperature and radiated power questions > from the latest testing! > > Dave > >
