This temperature differential is more meaningful than it seems since some of the excess heat on the active side goes to heat the null side.
The basic concept of comparative calorimetry is good, and this ceramic is not a great conductor of heat, but there is a conductive pathway between the two sides, which could possibly have been made less in an improved design. Actually the heater wire itself could be part of the heat transfer problem. From: Craig Haynie The optical imager is typically reading between an 18c and 20c difference. Craig Eric Walker wrote: Interesting. I hope a post-run calibration shows that when the fuel is removed, the active and null outside temperatures return to one another to within experimental uncertainty. This will be critical to show before concluding anything. Eric On Sat, Apr 16, 2016 at 9:58 AM, Craig Haynie <cchayniepub...@gmail.com> wrote: 60c on the latest... https://youtu.be/VLK19pllG9g?t=6278 On 04/16/2016 10:53 AM, Eric Walker wrote: On Sat, Apr 16, 2016 at 2:01 AM, CB Sites <cbsit...@gmail.com> wrote: I have to say. This one is pretty fascinating. At 1000+C they had a delta T of 30C between a fueled and unfueled cell that lasted for hours, until I gave up. At what time in the video did you see this? When I skipped through the video, I always saw the "Outside heater active" (the green line) slightly lower than the "Outside heater null" (purple line). Perhaps you're referring to a delta between different numbers than these? Eric
