A visual demonstration would impress the masses. Use a real ecat and a dummy ecat with the same input power to inflate a balloon The real ecat will inflate the balloon faster.
Harry On Mon, Jun 3, 2013 at 4:46 PM, Jed Rothwell <[email protected]> wrote: > DJ Cravens <[email protected]> wrote: > > Notice I did not say flow calorimetry was needed. Just heating a >> container of water - pool, spa, teapot.... >> > > I have thought about that. During the initial warm up phase you would get > an interesting result. After that, when it reaches a steady state, you > would maintain the entire body of water at a certain temperature for weeks. > The body (the bath and its container) would be losing heat into the > surroundings. It amounts to more or less the same thing they are doing now, > with a bigger body and more thermal mass, plus evaporation and other > complicated stuff. I do not see an advantage. > > A spa or a pond is not a simple thing to model. > > > You do not need to measure flow rates if the effect is significant. >> > > You don't need to measure it now. You have to depend on Drs. Stefan and > Boltzmann being right. As for convection, you just gotta look up the > numbers in an HVAC textbook. > > > It avoids all the % steam questions, the emissivity numbers, the air flow, >> the cameras...... >> > > It does not avoid the steam question! On the contrary, with a body water > you are right back to that problem, with evaporation. There are no serious > questions about emissivity, air flow, or cameras. The emissivity can be set > to 1 (worst case). The air flow comes out of an engineering textbook. We > know the camera and emissivity are right because the thermocouple confirms > them. All questions are addressed and all are closed. > > > It is about the simplest measure of heat. >> > > The present method is the simplest. Using a body of hot water heated to > terminal temperature would be more complicated. > > The present method is not the most accurate but I doubt that a large body > of water would be more accurate. > > - Jed > >
