Re: [Vo]:Replication of Mizuno mesh experiment by Zhang
I wrote: > Be careful when comparing this to the original experiment, because the > mass of nickel mesh is smaller. > Nope. That was a typo in the report, which I shall fix tomorrow. The mass is about the same.
Re: [Vo]:Replication of Mizuno mesh experiment by Zhang
JonesBeene wrote: This is not exactly a “replication” at least in qualitative terms - in > that the gain relative to the input power is tiny. > The gain relative to input is irrelevant, and meaningless. You can change it to any value you like, by improving the insulation around the cell. It is not a "gain" in any technical sense, because there is no mechanism that converts input into output. With the bulk Pd-D electrochemical technique, you need input power to maintain high loading. Bulk Pd-D can produce heat after death, but to maintain a long lasting reaction you have to leave electrolysis running. So in that sense there is a sort of gain. The input power does play a role in the reaction. The ratio in this case is about the same as it was in most of Mizuno's tests reported in ICCF21, which I would not describe as "tiny." The only meaningful number is the absolute value of the output power. It is 9.6 W, which is larger than most cold fusion experiments. See: https://www.lenr-canr.org/wordpress/wp-content/uploads/StormsPeakheat124tests.jpg https://lenr-canr.org/wordpress/?page_id=1618 > Based on Mizuno’s claimed results, many observers were looking a > replication characterized by long periods of ~300 watt excess as opposed to > short periods at very low COP > That would be a miracle, not a replication. It is not possible for someone to recapitulate the last several years of Mizuno's work in a few months. I am delighted that Zhang has apparently recapitulated the work to a level beyond the ICCF21 paper. That was a 12 W reaction, but the mass of mesh was larger. Taking that into account, Zhang's present experiment is working about as well as Mizuno's new mesh in the R20 reactor, which is producing ~30 W. At this stage in the development of the experiment, we know virtually nothing about the meshes. Mizuno does not even have an SEM anymore. The earthquake broke his SEM. There is no way we can describe this experiment in enough detail to allow an easier replication than this. The experiment appears to be inherently easier to replicate than others. If it were not, the crude, hit-or-miss method of burnishing the Pd on the Ni would never work. It has to be robust. It is *easier*, but it sure isn't easy!
RE: [Vo]:Replication of Mizuno mesh experiment by Zhang
This is not exactly a “replication” at least in qualitative terms - in that the gain relative to the input power is tiny. Based on Mizuno’s claimed results, many observers were looking a replication characterized by long periods of ~300 watt excess as opposed to short periods at very low COP Sent from Mail for Windows 10 From: Jed Rothwell Sent: Wednesday, August 21, 2019 11:09 AM To: Vortex Subject: [Vo]:Replication of Mizuno mesh experiment by Zhang I am pleased to report a replication of Mizuno's experiment by H. Zhang: https://www.lenr-canr.org/acrobat/ZhangHreproducti.pdf Excess heat started at ~4 W and has now reached 9.6 W. Be careful when comparing this to the original experiment, because the mass of nickel mesh is smaller. The calorimetry is MUCH better than Mizuno's. It is splendid. Mizuno expressed some reservations about these results because the heat peters out after 2 or 3 hours. He thinks this might be caused by "impure gas in the reactants or slight differences in nickel." I do not think this is a problem because: 1. Zhang ran several times with a mesh that produced no heat (p. 18). 2. I think the total heat release is too large to be explained as impure gas. 3. The reaction is getting stronger between the second and third runs, from 4 W 20 kJ up to 9.7 W 47 kJ. If this were caused by gas coming out of the nickel mesh, I suppose it would fade away. He does not open the cell or change the mesh between runs. 4. Zhang replaced the deuterium gas with argon. That killed the reaction. I hope he did not clobber it permanently! Yesterday he told me he went back to deuterium, but it is still dead.
Re: [Vo]:Replication of Mizuno mesh experiment by Zhang
Will he be trying a new mesh? Harry On Wed., Aug. 21, 2019, 2:09 p.m. Jed wrote: > >1. Zhang replaced the deuterium gas with argon. That killed the >reaction. I hope he did not clobber it permanently! Yesterday he told me he >went back to deuterium, but it is still dead. > >
[Vo]:Replication of Mizuno mesh experiment by Zhang
I am pleased to report a replication of Mizuno's experiment by H. Zhang: https://www.lenr-canr.org/acrobat/ZhangHreproducti.pdf Excess heat started at ~4 W and has now reached 9.6 W. Be careful when comparing this to the original experiment, because the mass of nickel mesh is smaller. The calorimetry is MUCH better than Mizuno's. It is splendid. Mizuno expressed some reservations about these results because the heat peters out after 2 or 3 hours. He thinks this might be caused by "impure gas in the reactants or slight differences in nickel." I do not think this is a problem because: 1. Zhang ran several times with a mesh that produced no heat (p. 18). 2. I think the total heat release is too large to be explained as impure gas. 3. The reaction is getting stronger between the second and third runs, from 4 W 20 kJ up to 9.7 W 47 kJ. If this were caused by gas coming out of the nickel mesh, I suppose it would fade away. He does not open the cell or change the mesh between runs. 4. Zhang replaced the deuterium gas with argon. That killed the reaction. I hope he did not clobber it permanently! Yesterday he told me he went back to deuterium, but it is still dead.
