[Do not reply directly to this message] Well, I hope I was able to upload 2 more figures. You never know . . .
Anyway if they appear, here is what I wrote about them: With considerable effort, under trying circumstances (rain), I have prepared two more images from the Arata paper: Fig. 2. A test beginning 10/31/07. D2 gas with a 7 g sample of ZrO2*Pd. Gas injection lasts about 18 minutes. During the injection or “Jet-fusion” phase, the cell core temperature rises to 71°C, and the cell wall temperature rises to 35°C. Fig. 4. A test beginning 1/7/08. H2 gas with a 7 g sample of ZrO2*Pd. Gas injection lasts about 15 minutes. During injection the cell core temperature rises to 61°C and the cell wall rises to 34°C. In short, the reaction is similar to the effect with deuterium. However, after gas injection, some differences emerge: * With deuterium the pronounced temperature difference between the cell core and the cell wall continues for the 300 minutes shown in this graph. As shown in the graph I sent previously, Fig. 5B, this temperature difference lingers for 3000 minutes. With hydrogen, the temperature difference between the core and wall quickly vanishes. * With deuterium, the temperature gradually decays to 29°C at 300 minutes, which is 5°C hotter than ambient. With hydrogen, the temperature decays to 24°C, 1°C hotter than ambient. As shown in Fig. 5B the hydrogen cell soon returns to ambient temperature, whereas the deuterium cell remains hotter than ambient at 3000 minutes. These figures show data for 300 minutes, starting about 50 minutes before gas injection begins. Before injection, the cell is baked out and cooled down to remove gas contamination from the sample. Note that Fig. 5B, apparently shows three other data sets, not these. The data in Fig. 5B begins at 300 minutes (where these cut off), so it includes only what Arata calls “skirt fusion” which begins after gas injection is cut off. I sent this figure previously because it showed the more interesting phase, and because it shows the delta T difference between the cell core and wall more clearly (the left axis temperature is smaller). I wondered if the energy release shown here during the gas injection phase could be chemical in nature, as Arata claims. Arata claimed that during the “jet-fusion” gas injection phase, the cell produced 4.4 kJ in 15 minutes with an 18 g sample. For these two samples, of 7 g, of I did a seat-of-the-pants estimate based on my previous estimate that in the steady state, the cell wall temperature is 1.5°C hotter than ambient per watt of heat. I came up with 2 to 3 kJ for these two graphs. Assuming Arata is correct, and output is 4.4 kJ for 18 g, that comes to 4.9 W average power, or roughly 0.2 MJ/kg of material, which is a plausible energy release for a chemical reaction. I estimated other samples at 0.3 to 0.4 MJ/kg. The most energy dense common chemical, gasoline, produces 42 MJ/kg; coal produces 20 MJ/kg, so 0.2 MJ/kg is plausible, but I would like to know what chemical reaction Arata has in mind, and whether it occurs again when the sample is tested again. - Jed
