Dr. Case's Experiment: Run 5 14MAY98
Scott R. Little, EarthTech International, Inc.
*** This test was conducted with a sample of the very same catalyst that Dr. Case has used successfully! ***
(This experiment employed apparatus described here. )
For this run I loaded the chamber with 20 grams of G75-D (0.4% Pd) catalyst that Dr. Case supplied to us. To accommodate the relatively small amount of catalyst and to obtain better data on the catalyst temperature, I modified the temperature probes to put one near the bottom of the catalyst bed and another near the top. The bottom probe was 9 mm from the bottom of the chamber and the top probe was 23 mm from the bottom. The catalyst bed was about 35mm deep in this run.
This run also incorporated a pressure transducer (gauge pressure) and the blue trace (Press) shows the data it produced plotted on a scale that runs from -100 psi to +100 psi with 0 psi in the center.
The run starts with a few minutes of zero gauge pressure followed by a few minutes of vacuum (-15 psi gauge). Then the chamber was filled to 50 psi of hydrogen and the heaters were set at 40 watts (Pin). Shortly after the heaters were energized the pressure began to rise and, after an hour or so, had reached ~80 psi. At this point I began stepping down the heater power to 21 watts where it remained for the rest of the run. The two catalyst temperatures (Ttop and Tbtm) overshot a little and then settled down to about 180° C, as recommended by Dr. Case.
At hour 1.8, I vented, evacuated, and refilled the chamber with 50 psi of hydrogen (2nd hydrogen cycle).
At hour 2.8, I vented, evacuated, and refilled the chamber with 50 psi of hydrogen again (3rd hydrogen cycle).
At hour 4.0, I vented, evacuated, and refilled the chamber with 50 psi of deuterium. No significant change was observed in the catalyst temperatures or in the Pout trace.
At hour 5.6, I vented, evacuated, and refilled the chamber with deuterium again…this time to 60 psi.
At hour 6.2, I vented, evacuated, and refilled the chamber with 50 psi of hydrogen. I also knocked loose the heater power connection, which explains the glitch in the Pin trace.
This run looks just like our previous runs. There is no significant difference between deuterium and hydrogen (protium). There is also no sign of excess heat from this experiment.
Comments are welcome.