Dr. Case's Experiment: Run 4 8MAY98
Scott R. Little, EarthTech International, Inc.
*** This test was conducted with the real catalyst! *** (This experiment employed apparatus described here. )
After Run 3 ended, I left the chamber filled with D2 overnight. Run 4 was conducted without opening the chamber, mainly to see if some other catalyst temperature would stimulate the excess heat to occur in my apparatus.
In this plot, the catalyst temperature is plotted on a 0-250° C scale and only Tbtm (the sensor in the catalyst bed) is plotted.
The run starts with a 40 watt blast to get things warmed up and then the heater power was set at 15 watts for a couple of hours. At the end of that period, Tbtm was about 148° C. Then, the heater power was raised to 20 watts (with some juggling to get Pout up there faster). That produced a Tbtm of about 176° C, similar to the earlier runs, which were conducted at 20 watts. Then I raised the heater power to 25 watts and got a Tbtm of 205° C. Finally I went to 30 watts and Tbtm reached about 230° C. As you can see from the Pin and Pout traces there is no sign of an excess heat phenomenon in this experiment.
Here is a plot of delta-T (between the catalyst and the 40° C water-flow heat exchanger) versus the heater power. It looks pretty normal to me. Presumably the curvature is due to radiation losses which increase non-linearly as the temperature increases.
Comments are most welcome.