See: http://lenr-canr.org/Mizuno/Mizuno2014-11-20.xlsx
There are some graphs to the right of the spreadsheet data. They show how I estimated the power added to the water by the pump. I selected a time when the ambient temperature was very stable, starting at hour 17.8. The temperature difference between the cooling water and ambient was 2.5°C. I computed the coefficient for Newton's law of cooling is 0.06, for the equation here: http://www.endmemo.com/physics/coollaw.php I then applied this to the temperature difference of 0.6°C above ambient which appeared 1.5 hours into the test. At that time the heat added to the water by the pump equaled heat losses. That gives a power level of 0.42 W. In another segment of the curve, with a less stable ambient temperature, the coefficient was 0.10. Mizuno reported data for October 30 with a coefficient of 0.05. I think 0.06 is closer than 0.10. I have not used this method before. This is slightly inaccurate because the pump is working all the time and it retards cooling even at hour 17.8. However the temperature difference is much greater at hour 17.8 than at hour 1.5. The first graph in the spreadsheet is interesting. It shows the water heating up to the stable 0.6°C above ambient, and then starting to cool down. It cools from a high point of ~23.35°C at hour 1.6 down to ~23.30°C at hour 2.3. After that, ambient begins to fall and things get complicated. I presume it cools down because the heat transfers to the reactor, as shown by the rising cell wall temperature. I do not understand why it heats up to a high point and then begins to fall slightly. I guess heat losses from the reactor wall increase as the temperature difference between the reactor and ambient increase. It seems to me the curve should not bend down; it should never go high in the first place. This data has much less noise than the data Mizuno collected in October before he installed the aluminum foil tent over the reactor, shown in Fig. 11 in the latest version of my report: http://lenr-canr.org/acrobat/RothwellJreportonmi.pdf - Jed
