On Oct 7, 2011, at 5:03 PM, Alan J Fletcher wrote:
I preliminarily agree with your Preliminary Data Analysis. What I DON'T understand from Hustedt's graphhttp://www.facebook.com/photo.php?fbid=10150844451570375&set=o. 135474503149001&type=1&theater (and your spreadsheet) is why there was NO heat transfer to the secondary circuit until 13:22. Maybe they didn't turn on the eCat's input pump until then.
19:22: "Measured outflow of primary circuit in heat exchanger, supposedly condensed steam, to be 345 g in 180 seconds, giving a flow of 1.92 g/s. Temperature 23.2 °C."
This indicates pump flow is probably 1.82 ml/s. The heat showed up in the exchanger at about 130 min, or 7800 seconds into the run. See graph attached, or spreadsheet at:
http://www.mtaonline.net/~hheffner/Rossi6Oct2011.pdfThis means the flow filled a void of (7800 s)*(1.82 ml) = 14200 ml = 14.2 liters before hot water began to either overflow or percolate out of the device, and thus make it to the heat exchanger.
If you look at the graph you clearly see the Pout data points are all over the place when Pin ~= 0. As I noted in my Preliminary Data Analysis:
http://www.mail-archive.com/vortex-l%40eskimo.com/msg52405.htmlit is notable that when the power is turned off, for example at time 14:20, and 14:51, and 15:56, the power Pout actually rises. This may be a confirmation that the Tout thermocouple is under the influence of the temperature of the incoming water/steam in the primary circuit. Water carries a larger specific heat. Cutting the power may introduce water into output stream, as before. If the thermocouple within the E-cat is subject to thermal wicking, the water temperature may actually be 100°C, as before. This sudden flow of 100°C water could then account for increased temperature from the Tout thermocouple, which is located close to the hot water/steam input.
Further, the fact the data is highly variable is an indication the hot water arrives at the heat exchanger in slugs.
That's my take on it. Best regards, Horace Heffner http://www.mtaonline.net/~hheffner/
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