A whole 'web page on the subject' Thanks very much Todd. Ive just done the rounds now from all my local fast food shops, 5 of the 6 were filled with Glee at the thought that someone would take their waste (i was surprised too) saves them a trip to the tip. Oh yeh the one that said no - McD. I'm going to have to give it a go. Btw, I've had a price on Methanol 100 litres -£140+vat uk, is that good? Thanks all, thanks again Todd :).
----- Original Message ----- From: Appal Energy <[EMAIL PROTECTED]> To: <biofuel@yahoogroups.com> Sent: Monday, April 23, 2001 3:10 PM Subject: Re: [biofuel] Can Biod be replace central heating oil? > > Can Biod be used for Central heating? > ................ > > Ian, > > Absolutely. You can use biodiesel as a 100% replacement for home heating > oil. There are only two principle drawbacks. > > The first is that fuel oil tanks develop serious paraffin and gum buildup on > their inside walls over time. Introducing bio-d with its superb solvent > effects will loosen all this up at an extremely quick pace. This stuff is > black, waxy, collects particulates like a magnet, and will clog filters in a > heartbeat. It can be as thick as an 1/8th inch and cover almost the entire > interior surface area of a tank - you're talking a "gallon" or more of gunk > in a 10 or 15 year old tank. > > You have two options. You can choose just to install a "super filter" and > take your chances that a few of these filters will get you through each > winter with no major problems. Or you can clean the tank, using moderate to > high pressure warmed solvent (120-150 degrees Fahrenheit). > > Bio-d is recommended for the thorough cleaning, due to its high flash > point - no others if you value your existence. You will need a directional > wand and some patience, as only a slow and methodical pattern will give you > any assurance that the tank is clean. > > You might be able to get away with a hand cranked barrel pump with an > extension to pump out the old fuel and the dirty solvent during cleaning. > Make sure the extensions are air tight or you may never get a prime. Rinse > the tank with several gallons of bio-d several times. > > If you choose to use an existing tank, you will need to install a "super > filter," even if the tank is cleaned. There will almost inevitably be some > patch of waxes missed with the pressure cleaning. > > Last fall the NBB played up a Maryland dairy farmer using bio-d for heat. It > was only 5% bio-d, as they didn't wish to contend with any large releases of > waxes and gums in a brief period of time. Understandable to some degree, as > it is their livelihood being disrupted should serious problems crop up with > lines clogging. > > Five percent is better than nothing, but this low of a percent will never be > sufficient to clean a tank "naturally" in anything but geologic time - > especially the uppermost portions which run dry first as fuel is consumed > and remain dry until the tank is refilled. I would contend that the home > brewer would be better off going the whole route, rather than partial > measure. > > The second drawback is ambient temperature and the cloud point of your > bio-d. Above ground tanks and lines will "freeze" rapidly, after 30 degree > weather sets in. This can happen in but a few hours in the lines and after > only a few nights in the tank, leaving you with a very cold problem. > > Even below ground storage can have some of the same problem, depending upon > whether the tank is below the frost line or not and if any of the lines run > along the exterior of the building, rather than underground, beneath the > frostline, under the building and then up through the floor to the furnace. > > In an industrial type building, fuel can be stored inside, eliminating the > clouding/freezing problems. This is not as possible in residential > dwellings, nor advised. > > If you're going to do this, I would start now, as winter will be here in a > bat of an eye. > > Todd > Appal Energy > [EMAIL PROTECTED] > > > > Biofuel at Journey to Forever: > http://journeytoforever.org/biofuel.html > 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 To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
