I have collected more data in a new run that seems to explain things (see chart below). Something took place around 1000 seconds and corrected around where the spike occurred (note that I removed some data from the first part of Run 1 to line up the curves at the start of the runs). The most likely probability to my mind is that the magnetic stir bar must have stopped spinning and restarted mixing the water layers again causing an apparent spike in the temperature. Jones suggested an experiment to oscillate between the top and bottom of the spike range, which I have started. Just from the start of this new run, it is clear that the first run was not tracking correctly from early on.
http://www.lenr-coldfusion.com/wp-content/uploads/2013/06/6-16-13.png I'll keep experimenting, and if I find anything of interest, will report back. Thank you for the comments and suggestions that helped figure this out. On Sat, Jun 15, 2013 at 6:25 PM, Jones Beene <jone...@pacbell.net> wrote: > Good point Robin. > > There could have been accumulating H2/O2 bubble formation that suddenly > recombined (burned) to give the big jump in temperature. Jack has a neat > Android based controller that lets him collect data by cell phone. I think > we will be hearing more on his progress as time goes on. > > The real problem with simple electrolysis as a way of looking for thermal > gain which is due to such things as Ni-H LENR - is that without a > recombiner, you have two contradictory or self-cancelling influences... in > the sense that high efficiency in water-splitting efficiency actually > carries away significant amounts of heat from the cell, and makes the cell > cooler than it otherwise would be. > > Thus, an inefficient cell for water-splitting in terms of liters of gas per > minute, can show more thermal rise than an efficient cell for > water-splitting unless the heat of the gas which bubbles off is accounted > for. It usually is not. This is most problematic since thermal gain in the > electrolyte should be an easy and reliable way to document the anomalous > nickel-hydrogen reaction -IF- all the heat could be retained. > > A recombiner usually requires platinum, and thus is not seen too often in > low-cost experiments. But there can be a work around in trying to maintain > hydrogen on the cathode for as long as possible. However, that means > manipulating the voltage to a minimum level, but catch-22 low voltage > electrolysis is known to cool a cell on its own. > > More on this later: a milliwatt UV laser could be the answer. UV lasers are > available for almost nothing these days, and using one could be a way to > safely employ a sealed cell in which almost no extra energy from the laser > recombines the gas a few times per second. > > -----Original Message----- > From: mix...@bigpond.com > Hi, > > At 11350 seconds it suddenly flattens off. The curve after the jump appears > to > be a continuation of the curve before 11350 seconds. This gives me the > impression that something changed at about 11350 seconds which was restored > during the jump. Perhaps something like a change in conductivity &/or > bubble > formation at 11350 seconds that released just before the jump? > > > >Here is the run overnight with the graphite anode replacing the stainless > >steel. That temperature jump about half way through seems intriguing. > > I've never seen it do that before. It occurred over 90 seconds. > > http://www.lenr-coldfusion.com/wp-content/uploads/2013/06/6-15-13.png > > > > >
