What I am assuming is that, 1) we similify the heater winding to be a single coil for the first reactor we build. Instead of having 3 interleaved 25T windings, there will be a single winding of 18 gauge Kanthal APM wire with 75T. I am proposing 2) that there be no reactor fuel at all for this experiment. Then, 3) add instead of reactor fuel, a coil of Kanthal wire in the center reactor tube to simulate the heat produced from the fuel. Drive the center heater with a separate supply. Then, with each input power to the main heater, you could add an excess power to get it to match the Lugano results. You could use the center heater to mimic the change in calculated output power when the input to the main heater was only changed 100W.
I have a 5A, 500VA variable transformer, but I don't think it is enough and I think that using triacs and line AC would be just fine. All we need to know is the power going in. For the most important part of the proposed experiment, knowing the input power is not really necessary - I just want to see correlation between the thermocouple readings and the Optris readings. Bob On Tue, Oct 28, 2014 at 8:52 AM, David Roberson <[email protected]> wrote: > Are you assuming that the single phase drive triac controller is connected > to the three heating units in parallel? That should be OK for a dummy test > but the interaction with the fuel might become an issue when a final test > is performed. > > I wonder if the MFMP group has access to a large variable transformer? > That would be a very simple way to adjust the power input to obtain a curve > of temperature versus drive power. I am particularly interested in the > shape of that set of parameters since the testers saw such a large apparent > increase in power output with the relatively small drive change with their > step up in power. That appears to be a strong indication of core gain > that should not be present when in the dummy mode. > > -----Original Message----- > From: Bob Higgins <[email protected]> > To: vortex-l <[email protected]> > Sent: Tue, Oct 28, 2014 10:04 am > Subject: [Vo]: Temperature Testing of an IH-like Alumina Reactor > > 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. >
