2011/8/30 Jed Rothwell <[email protected]>: > Jouni Valkonen wrote: > >> Ps. I do not know what model of E-Cat we are talking about. Does we have >> pictures? Or is it just some mythical test what was seen by nobody. >> > > The 15 minute heat-after-death event was with the large eCat used in the > January and February tests. This produces 12 kW to 16 kW output (depending > on how you measure it) with about 400 W input. As far as I know, this is the > only eCat that Levi et al. tested in December, which is when the event > occurred. The flow rate was typically ~300 ml/min I believe. >
Ah, now I know exactly what is going on. Here is the premilinary report (Test1): http://22passi.blogspot.com/2011/01/report-ufficiale-esperimento-della.html?m=1 Ok, I am amazed how far from reality Joe was, because it was impossible try to make proper conclusions in what test he was referring. But anyways, it is now very clear. –Input power was turned on 16.55 and it was around 1200 Watts. –This caused slight temperature rise during first 30 minutes.(ΔT 20°C) –After that reaction partially ignited and temperature rose to 60°C. This took about 20 minutes –Then full ignition happened 17.50. Temperature rose quickly to 101.6°C and steam overpressure was ca. 100 kPa. –Then the power was cut 10 minutes later and reactor still continued producing steam for 15 minutes –Finally reactor was shut down 17.15 by increasing water flow We do not have good data what was the momentary output power during the 10minute powersurge. Also, in order to make any calculations, we should have some information how much E-Cat can store liquid water inside. However, as the temperature stayed over 100, it means that there was some steam production. We do not know exactly how much, because there was visible temperature drop after power was cut and this means that steam overpressure decreased somewhat from that 100kPa, in the self-sustaining mode. Therefore total heating power in self-sustaining mode was at least 3 kW, probably more. But what is important is that there was not visible decreasing of heating power during the 15 min self-sustaining mode and it was artificially cancelled by shutting down the reactor. Therefore it is fair to assume, that it would have continued indefinitely without shutting down the self-sustaining mode. Also as we know that the volume of reactor chamber was ca. 1 liter, therefore the maximum metal mass for storing thermal energy was probably 5 kg. Same logic applies here that only the reactor chamber can store residual heat energy.Therefore rest of the E-Cat can be ignored, because it does not exceed significantly 100°C. Also some estimations about what was the total heating power during the 10min powersurge. We know that in that time, inside E-Cat, there was at least 10 kg of water. Therefore total heating power during 6min power surge was 4.6kW (water stored inside the E-Cat) + 1.5kW (cool water flux) + 1.0kW (metal components of E-Cat) = _6kW_, in order to rise ΔT by 40°C in 6min. This is also the most likely excess heating power of December E-Cat, i.e. 4.7kW excess heat was produced for 25 minutes. In summary, water flow was 14 kg/h, core mass was 5kg, heating power in self-sustaining mode was 3-5kW (but it was constant). Max core temperature 1000°C. –Jouni
