We are starting an experimental run with the NiCr wire turned on also. The aim is to sweep a range of currents in the Celani wire that are more in the range of what he was demonstrating at. The addition of the NiCr wire will achieve the higher cell temperature than the Celani wire would achieve alone at those power levels.
We are stepping through 18 points targeting roughly 16 to 32 volts, which will correspond to 1 to 2 amps in the active wire. The NiCr wire will contribute about an additional 75% in heat to the cell. We do not have an exactly comparable calibration curve for this, we have done tests with both wires early on that give us confidence that the current calibration based on the first Helium runs with the unloaded Celani wire will be suitable. Those runs ran warmer than the previous ones, a fact I am attributing to the denser wraps making the center of the cell run a tad hotter. That should hold as a conservative baseline for this test.
Over the afternoon we have seen a couple interesting things, like the glass temp falling significantly for brief periods, which drove the excess energy calculations to much lower levels than than we saw all day yesterday. Still struggling to explain that.
And I am still working on getting all the tests and data compiled into one index.