• About the now D2 saturated meshes, I wonder if they could be tested in a LEC configuration, they might be able to put some voltage now.

    I certainly Hope to see LENR helping humans to blossom, and I'm here to help it happen.

  • The pressure issue arose from some very unexpected behavior. When initially adding D2 at room temperature, it seemed to be absorbed within a matter of seconds, never reaching the target of 300 Pa. Once I noticed this, I closed the valves, with pressure at ~225 Pa. A video clip of this loading process will be posted soon.

    After about 10 minutes settling time the pressure seemed stable, so we started to warm the reactor. At around 100°C, the pressure rose quickly to around 1000 Pa and continued to rise as the temperature increased. In the final power step it reached over 5000 Pa, far more than could be explained by the D2.

    At the end of the last temperature step, we sampled the cell with the Cirrus mass spec. There was no deuterium seen in the cell, none detectable anyway. The plentiful gas at 5k Pa did show a range of masses suggesting compounds of carbon, oxygen and nitrogen, with deuterium atoms attached. Perhaps someone familiar with catalytic chemistry at 100-250°C could find some sense in this. The important question is if the rapid pressure rise starting at 100°C was due to abnormal desorbtion of introduced D2, or from a leak that didn't appear during de-gassing the system at room temperature. The cell reached around 5E-5 Torr before heating, so any leak path must be highly temperature-sensitive.

  • Maybe no correlation however i remember a kind of similar behavior highlighted by me356 himself in the "former" past.

    Pressure was at 7.5 bars, then I have increased the temperature quickly from 600 to 750°C in just few seconds. It was at 750°C for maybe 10 seconds and then, suddenly pressure went down in one minute to 2 bars!

    And then, from nothing after 10 seconds, it started to increase to the opposite to 11 bars in maybe 5 minutes.

    It was at 11 bars for at least 2 hours, but it very slowly decreased to 9 in following 5 hour as it happened previously (before such event was triggered) from 10 to 7.4 bars.

  • Thank you for the video.

    I can see the problem is right at 1:30. The mesh started to load Deuterium which is not good. This was point when it was required to stop adding more.

    In any case it is needed to load the Deuterium much slower, so this is avoided as much as possible.

    When reactor is bigger and its volume larger it is much easier. You will need to open valve much lighter to introduce Deuterium.

    And it must be done in just one single step.

    Each additional pressure step when Deuterium is loading will dampen the reaction more and more.

    When pressure is increasing slower it will be better for sure.

    And I recommend to stop it right around 80 Pa.

    However these meshes might be unusable at the moment.

  • When reactor is bigger and its volume larger it is much easier. You will need to open valve much lighter to introduce Deuterium. And it must be done in just one single step.

    The volume-to-surface area in the MR5-1 reactor with three meshes installed is small. This makes it difficult to control the amount of D2 added, due to the rapid absorption we saw. Two solutions may be possible:

    (1) install only two or one mesh, so the absorption is less deep. It would still happen almost instantly


    (2) add the gas by calibrated volume/pressure steps, using the known volumes of the vacuum manifold and the cell itself. That is tricky, because although the volumes of the vacuum manifold and the cell itself are known, the pressure gauge on the manifold is a pirani/ion type and thus cannot accurately measure pressure of hydrogen or deuterium. So careful calibration of the process is needed, and that will be done before the next experiment.

    The cell was baked and pumped down last night, reaching 6E-6 Torr after cooling from 245°C. Is that enough to deload the Pd? Probably not.