Dana, I'd love to think a heated tank isn't necessary. One way to heat the fuel just forward of the SVO/WVO tank would be to use Racor's coolant-heated fuel line heat exchanger, which would just involve running coolant lines to the SVO tank. Then use Neoteric Biofuels Vegetherm 12V heater just before the fuel filter - and, for those of us willing to be lab rats for WVO/SVO on direct-injection engines - use his not-yet-available Hotter Than Hell Vegetherm (or whatever he decides to call it.)
If one is concerned about the SVO solidifying in the line between the Racor heat exchanger and the Vegetherm, use the HIH (although I'd rather not) or Racor's 12 volt In-Fuel-Line Diesel Heater. Using both the Vegetherm and the Racor 12V line heater might call for an alternator upgrade - the Racor pulls 20.4 amps, not sure what the Vegetherm's amperage is. Any opinions? Craig Dana Linscott wrote: > Do SVO conversions really need heated tanks? I think > not. > My thoughts on this have changed since I went > overboard on my own conversion. My SVO tank heats up > to about 90*F in 15-25 minutes of driving(I have a > remote temp. sensor on it) and as far as I am > concerned this is wasted heat. Even more important I > think I wasted effort and funds by building a tank > that warms up all of the SVO in it. > > I now think that all that is needed is a small pocket > of liquid SVO at the tank outlet if the SVO lines are > heated (in my area they must be). This can be easily > and cheaply accomplished with a small heater at the > SVO pickup point. Most return lines are routed to near > this point so once the warmed SVO is being circulated > this pocket will grow larger. Even in subzero weather > when the SVO is hard the entire tank will eventually > warm enough so that progressively more and more SVO > will liquefy. As long as enough SVO can be "melted" in > that extreme cold to supply the engines needs the > max.necessary heat is being applied to the SVO tank. > Any more is overkill. > > If this is true it makes converting the main fuel tank > to SVO much simpler and consequently the whole > conversion becomes simpler. Since dieselor BD is only > needed for starting and purging using the existing > tank for SVO and installing a small diesel tank seem > to me to be the optimum method for conversion. If one > is using HIH or HOH to heat the lines a valve in the > coolant supply line is all that is needed to allow use > of the main tank for diesel again at any time. That > warm coolant can also be used to provide the pocket of > liquid SVO if a "jacketed" SVO pickup is fabricated. > Easy to do. Basically it is a hose in a hose in a > hose. Email me if you want a simple drawing as I don't > believe that I can send an attachment to the group. An > electric heater can also be used at the pickup point > if an alternative method to heat the SVO line is being > used. > > Ed, Would the Veg-therm work for this? > > Any others have thoughts or experiences on this? > > And thanks to those that have sent me links to other > possible SVO sites. There is a lot of info out there > if I can just find the time to wade through it and > collate. > > Dana > > __________________________________________________ > Do You Yahoo!? > Check out Yahoo! Shopping and Yahoo! Auctions for all of > your unique holiday gifts! Buy at http://shopping.yahoo.com > or bid at http://auctions.yahoo.com > > > Biofuel at Journey to Forever: > http://journeytoforever.org/biofuel.html > Please do NOT send "unsubscribe" messages to the list address. > To unsubscribe, send an email to: > [EMAIL PROTECTED] > > Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Please do NOT send "unsubscribe" messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
