This may not be a factor in the Celani replication experiment where pressures are high (greater than 1 atmosphere correct??), but at low pressures, the thermal conductivity of hydrogen gas is hugely impacted by small amounts of a heavier molecule gas that is added - such as Argon or nitrogen. I forget exactly how low the pressure needs to be - but something less than 10% of 1 atmosphere (1.5 psi). So for example, 1.5 psi of 90% H2 and 10% Argon has much lower thermal conductivity than 100% H2 at the same pressure. The reason is that fast moving hydrogen is *physically* blocked from transporting heat by the much slower and larger Argon atoms. 18 years ago, in 1995, I was running a Mizuno proton conductor replication experiment and I added a very small amount of air (which is mostly nitrogen) to the low pressure deuterium gas and got a temperature rise. I had thought that adding gas should increase the thermal conductivity of the gas and reduce the temperature of the proton conductor operating at 350 C. But because of the low pressure H2 and the addition of higher weight gas, the temperature increased and I therefore thought that Air was the trigger for a cold fusion effect. It took a bit of research to find out that I had an artifact. I was able to post my question about thermal conductivity changes on a discussion board and got an answer. The Internet was a great help - even back then in its beginning.
But again, in the Celani replication experiment where the pressures are greater than 1 atmosphere, this issue of hydrogen conductivity being affected hugely by Argon in a counter intuitive way is less of an issue. The purpose of my email is to alert people to the counter intuitive effects at low pressures (less than 10% of an atmosphere) involving Hydrogen and a second higher molecular weight gas. Though I could not find a good thermal conductivity graph of hydrogen and another gas at low pressure on the internet to show my point. On Sun, Dec 2, 2012 at 2:02 AM, Jeff Berkowitz <pdx...@gmail.com> wrote: > It's bad news, but it's important. > > In short, the contention now is that Celani did not account for effect of > pressure changes within the cell. Reducing the gas pressure reduces the > thermal conductivity of the gas. This reduces the temperature of cell > components like the metal flanges that are mostly heated by the gas. > > So at lower gas pressure, the flanges don't get as hot and so don't radiate > away as much heat. But the electrical heating is constant, so measured > temperatures at other points in the cell must rise. HUG is contending that > this pressure-modulated rise in temperature elsewhere in the cell is what > Celani measured as excess heat. > > http://www.quantumheat.org/index.php/follow/163-a-partial-explaination > > Jeff >
