This post does imply that some extra difficulties are present when attempting a gas powered ECAT. I forgot this one small posting among many others that are of a positive nature. If we want to get to the facts, someone needs to ask Rossi on his blog whether or not he has made progress with the gas powered device. It is a stretch to conclude that the changing AC magnetic field is the key ingredient with just this one post as evidence.
I have long thought that the magnetic field is important but it is too early to draw a firm conclusion with such weak evidence. For instance, Dennis Cravens did not use a changing field in his sphere system which appears to work at very low temperatures. Why is he able to demonstrate apparent LENR at less than 100 C when all of the recent experiments require 1000 C and even then are difficult to prove? Something is missing in the recent experimentation and no one with solid answers is coming forward. We can continue to speculate but if wise will keep as many options available as possible. Dave -----Original Message----- From: Axil Axil <[email protected]> To: vortex-l <[email protected]> Sent: Fri, Jun 19, 2015 2:02 am Subject: Re: [Vo]:Cat stimultion Rossi: Natural Gas Powered E-Cat Not a Matter of Simple Heat Posted on February 27, 2015 by Frank Acland • 52 Comments Andrea Rossi has frequently mentioned that ‘driving’ the E-Cat with a natural gas source, rather than electricity, is a goal that Industrial Heat is working towards, because in many cases it would make the E-Cat more economical (natural gas being much less expensive than electricity in many parts of the world). If it were simply a matter of replacing one source of heat (a gas flame for an electric heating element) one might think that this was a relatively simple task to perform — but a comment from Andrea Rossi today on the Journal of Nuclear Physics indicates that things are not this simple. Steven Karels asked Rossi: Can you discuss what some of the challenges are in going to a gas-fueled eCat compared to an electricity heated eCat? For example: 1. The difference in time constant between the application and removal of heat between electric heating and flame? 2. The difference in heat transfer for gas-fired versus direct electric windings? 3. The difficulty in providing adequate ventilation for gas-fired system (incoming air)? 4. The difficulty in exhausting the exhaust products? 5. The energy efficiency of gas-fired (how much energy goes up the chimney)? Rossi responded: None of them. The problem is deeper and has its roots in the core of the know how. It is not a problem of heat exchange or of heat conservation. Otherwise, it could have been already resolved. On Fri, Jun 19, 2015 at 1:13 AM, David Roberson <[email protected]> wrote: Rossi never stated that gas powered ECATs do not work. Where did anyone get that idea? Dave -----Original Message----- From: mixent < [email protected]> To: vortex-l < [email protected]> Sent: Thu, Jun 18, 2015 11:13 pm Subject: Re: [Vo]:Cat stimultion In reply to Axil Axil's message of Thu, 18 Jun 2015 20:43:15 -0400: Hi, [snip] >http://www.e-catworld.com/2015/02/27/rossi-natural-gas-powered-e-cat-not-a-matter-of-simple-heat/ > > > >Natural gas did not work. Its more than just heat. That's interesting. It made me think of MRI where resonance occurs for a specific combination of frequency and magnetic field strength. If a constant frequency is available then resonance could be achieved by regularly varying the magnetic field strength as would occur with AC current. Knowing your penchant for all things magnetic, I guess you have already suggested this. :) Regards, Robin van Spaandonk http://rvanspaa.freehostia.com/project.html
