*Discharging through 2 spark plugs in parallel will not work either as the resistance drops massively as soon as a plasma channel forms diverting all current to one spark plug or other but not both.*
In dusty plasma, it may take some time for the electrical resistance of the plasma to drop to the level needed to disable the second spark plug. When the dust is nano-sized, it takes a long time to charge these small sized dust particles to a high enough level to effectively reduce resistance throughout the plasma. Additional plugs might be needed to start the reaction in a rapid time frame. After the plasma has reached equilibrium the addition plug might not be needed. Cheers: Axil On Wed, May 30, 2012 at 3:00 PM, Robert Lynn <robert.gulliver.l...@gmail.com > wrote: > Check out he pashen discharge curves: > http://en.wikipedia.org/wiki/File:Paschen_Curves.PNG > and you will see that spark length is heavily dependent on the gas > composition and pressure. higher pressure means shorter spark at same > voltage, you won't get a 12mm spark in high pressure H2 > > Discharging through 2 spark plugs in parallel will not work either as the > resistance drops massively as soon as a plasma channel forms diverting all > current to one spark plug or other but not both. Connecting the sparkplugs > in series might work but the driving circuit won't handle it as the reactor > will need to be at a voltage half way between the two outputs from the > sparking circuit. Unless you have a lot of additional complications with > high voltage isolation capable floating power supplies. However powering > the circuit with a well insulated battery might work. > > > On 30 May 2012 19:25, ecat builder <ecatbuil...@gmail.com> wrote: > >> A quick followup on spark plugs.. I think I found what I was looking >> for.. A small, cheap, and simple spark gap igniter that takes 5V and >> produces 1/2" sparks. Less than $20 shipped. >> >> http://www.sparkfun.com/products/11218 >> >> Skip to 10:45 on the video to see it working. >> Would be strong enough to drive two spark plugs.. >> >> Thoughts? >> - Brad >> >> >
