In June of this year, ECW reader Desireless provided a report of his efforts to replicate the Mizuno LENR experiment. He stated that he had been able to successfully achieve excess heat production, but only with a COP around 1.2 – 1.5. (See here: https://e-catworld.com/2020/06/15/claim-of-successful-replication-of-mizuno-lenr-experiment-desireless/)
Desireless has provided some updated information in comments on this site which are posted below:
“My Mizuno replication analogue continue and now I can confirm Excess heat with H2 as well.
“I can confirm Excess heat is higher with D2 by factor of 1.5.
“Excess heat is generated even by heather itself, not only mesh.
“There is certain pressure range near 0.01 – 0.04 Bar which gives the highest excess. Pressures under 0.7 Bar are giving clear results.”
[. . .]
“The reactor is same that I posted photos previously. It has wound nickel wire heater and is powered with DC power supply. Meshes are identical that were prepared year ago. It is running for around 2 months in total.
“Mesh is producing bursts of gamma rays when they are exposed to air, air pumped out and then D2 introduced at around 300 – 600°C, around 4-5x BG. Mesh must be unloaded. Can be measured very well with GM tubes with energy threshold from 100 keV for around 5 seconds. From then level is moving back to BG.
“Focus is now at mesh preparation because while Pd is deposited it is strongly damaging previously prepared surface. So nearly all the work is useless. Pd is way too hard even after softening. On the other hand Pd is deposited better than I thought.”