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.
