At 57deg BTDC, what is the manifold pressure? This seems reasonable but how would some mild supercharge affect this timing?
Great topic! Mark From: Gasification [mailto:[email protected]] On Behalf Of Pete & Sheri Sent: Saturday, October 13, 2012 8:50 PM To: 'Discussion of biomass pyrolysis and gasification' Subject: [Gasification] Lister on Gasoline, ingition control device? Hello, Ken. Did you ever publish the circuit for your ignition control device? I seem to remember seeing a video that showed it in action. Looked like maybe there was an Arduino in there somewhere. Pete Stanaitis ---------------- From: Gasification [mailto:[email protected]] On Behalf Of Ken Boak Sent: Saturday, October 13, 2012 12:28 PM To: Discussion of biomass pyrolysis and gasification Subject: Re: [Gasification] Regarding Combustion Quality of Producer gas Alex, We* found that the Lister had to be significantly advanced when running on woodgas in spark ignition mode. It was anticipated that we might have to be 20 degrees BTDC, but when the engine was finally running well, it was found to be around 57 degrees BTDC. The Lister has a 24" diameter flywheel, thus a 75.4" circumference. Our optimum ignition point was found to be 12" on the rim ahead of the TDC position. The Lister rpm was limited to 600rpm because of an undesirable resonance around 610rpm - a quirk of the specific engine we were using at APL. Normally the 6hp Lister should rev to 650rpm without vibration. Marcus Hardwick and I wrote up most of the technical detail here http://wiki.gekgasifier.com/w/page/30448258/Spark%20conversion%20for%20Liste r%20slow%20speed%20diesel%20engines We* - the Lister team at the April APL workshop consisted of Ron Ohler, Andy Schofield, Marcus Hardwick, myself and contributions from other workshop delegates. regards Ken
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