There was no attempt at misdirection on my part - I was simply recounting what I was told at W&M. However, I don't believe that the person who told me had direct first-hand knowledge, and while he may have been mistaken, I don't think he was intentionally trying to mislead me.
At first, I didn't think the statement made much sense - what would glow plugs be used for in a situation where there is no combustion? But, and I have no idea what devices are available ... Is it possible that a "glow plug" may exist that could be used as a filament for electron discharge as in an electron tube? Such a glow plug might still need the ceramic HV insulation. Electron discharge in the chamber would be more "active" in the cell than just sparking a spark plug. I thought I would post it for comment. Bob On Sun, Jul 15, 2012 at 11:22 AM, Jojo Jaro <[email protected]> wrote: > ** > Let's put this misdirection attempt to rest once and for all. > > A glow plug requires low voltage to heat. (Usually between a few volts > to 6 volts.) A glow plug does not require a tall ceramic insulatior. A > glow plug has a long elongated cylinderical tube that contains the heating > element inside. The pictures Terry posted from Amazon are glow plugs. > > A spark plug requires a tall insulator to prevent volatage leakage since > it is fired using high voltages. A spark plug will have a long threaded > part (f it is long reach), and a small gap at the end. > > The picture in DGT document is a spark plug. Any mechanic Joe blow will > tell you that. Notice the tall ceramic insulator. > > I wonder what motivation people have in spreading this misdirection? > Unbelievable how people can lie to your face nowadays and keep it cool. > Unbelievable. > > BTW, a spark plug fired at 300 hz (18,000 RPM) will draw less than 100 > watts. COP is not an issue if sparks are used. > > Jojo > > > > ----- Original Message ----- > *From:* Alain Sepeda <[email protected]> > *To:* [email protected] > *Sent:* Sunday, July 15, 2012 10:59 PM > *Subject:* Re: [Vo]:Harping on the Right Things! > > no spark gap on the photo, seems right. > > whether a glow or spark plug is a very important detail > > if a spark plug is needed, there is a needed quantity of energy that have > to be "electric", and this limit the COP. > if only heat is used, that mean that the reactor itself, or another > reactor, can provide the heat, so the COP can have no limit else the > insulation and controllability > > 2012/7/15 Terry Blanton <[email protected]> > >> Doesn't look like glow plugs: >> >> http://www.amazon.com/s?ie=UTF8&rh=n%3A15729261&page=1 >> > > -- Regards, Bob Higgins
