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 graph
http://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 sent with separate email, or see spreadsheet at:
http://www.mtaonline.net/~hheffner/Rossi6Oct2011.pdf
This 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.html
it 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/
