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Old 05-01-2005, 10:15 PM   #11
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Looking at it, it reminds me of the way they pump sulphur from underground deposits:
The inside tube goes down to the sulphur deposit deep underground. They pump boiling water down it, and it heats/melts/dissolves the sulphur, which comes up between the inside/outside tubes, and discharges into a cooling pond.

Yeah, I did a report for 7th grade, been a while, obviously.............

Brilliant, Pixie!
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Old 05-01-2005, 11:12 PM   #12
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That is a brilliant idea. I do wonder if corrosion will be a problem because of dissimilar metals?
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Old 05-02-2005, 08:46 AM   #13
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If you're worried about galvanic reaction due to dissimilar metals, I recommend trying "dielectric connectors", I THINK these are used to isolate the water heater from the copper supply/output lines on your home water heater.

Basically, they screw into the top of the water heater instead of regular pipe nipples. They reduce corrosion problems, IIRC.
Use them between the copper/brass and the iron pipe.

They come in a two-pack, any home center or hardware store worth it's salt should have them.

BTW, has anyone tried mounting zincs to their bus, like they do with boats? I would think they would add a LOT of corrosion protection.
I'm going to post this question/topic in another area of the Forum, titled "Corrosion Protection".
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Old 05-07-2005, 12:51 PM   #14
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Howdy,

I don't have a school bus, I have a box truck converted. but I have been on plenty of hippie bus crews, and have a few friends with buses. The reason I posted is that I just learned veggie oil conversion and am eager to share what i learned. when i was first looking to convert the truck i wished there were somewhere i could go and see it in action and have someone teach me. as it turned out, i had to learn from the internet. http://biodiesel.infopop.cc was where i got most of my info.
So what im getting at is that I'm in Corvallis, oregon, and biofuels is what I do. If you have a diesel and you want to convert to veggie oil, come over and i'll show you how. this isn't a sales pitch. you have to buy the materials for the conversion (not from me) and do the work, but i'll show you for free just cause this is what i love to do. I have no experience converting a bus, but I had no experience converting a Mercedes before I di, either. I have internet access, so the answer to an VO question is at our fingertips, and there are tons of people with conversions out there willing to give advice. I have room here on the land to park your bus for a few days while we do the conversion.
my website is http://www.windrift.us/dreamerbiofuels, and my email is on there. It also talks about the process of my VO conversion.
Hope to hear from you soon.
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Old 05-07-2005, 12:53 PM   #15
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I also build biodiesel processors out of hot water heaters. I'm mounting mine in my truck, and it's also possible to mount one in a school bus, as these designs are fumeless...
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Old 05-07-2005, 06:43 PM   #16
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Quote:
Originally Posted by Kalanu
I have room here on the land to park your bus for a few days while we do the conversion.
my website is http://www.windrift.us/dreamerbiofuels, and my email is on there. It also talks about the process of my VO conversion.
Hope to hear from you soon.
That's quite an offer, Kalanu, one I will take, though it would be a few months down the road as I'm in Maine now, but heading west in September. I really appreciate the offer and invitation. I will most certainly drop in when I'm in Oregon.

Quote:
Originally Posted by Kalanu
I also build biodiesel processors out of hot water heaters. I'm mounting mine in my truck, and it's also possible to mount one in a school bus, as these designs are fumeless...
That's really interesting, too. It sparks a question in my mind:

Why would you go biodiesel if you have a working WVO? I'm sure there's a good reason, otherwise you wouldn't be doing it. It just seems like a more complex and ingredient/component intensive process than just heating oil and firing it in the engine. Perhaps it is because some diesel engines just don't do oil well and thus, biodiesel is the next best option?

I'd be thrilled to examine your processors as well, especially cause they're made out of what so many throw away.

Thanks again for the info and offer. I'll certainly give you notice as to when I'll be in the area.
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Old 05-07-2005, 11:57 PM   #17
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In order to run VO, you need to start up and shut down in diesel, or biodiesel. In many ways bio-diesel is a pain in the ass, but it's 75 cents a gallon to home brew, and if you were to pay someone $10 (yourself, let's say) an hour to do it, it would still cost around $1.80. So screw dino-diesel. I like to have the processor on the truck to demonstrate for others. If a person only does short hop driving, like a short commute to work or a short trip to the store, it may not be enough time to heat up your veg system. So bio-diesel is good for them. Owners of newer cars have warranties that won't let them put more than 20% in their tank without voiding their warrenty (what a crock) and so it's good for them. And good for me cause I'm cheap. Rather do the work to brew than pay $hell.
The website has pictures of the processors, as well as a parts list (in photo form, because if you're salvaging, you can't just ask a pile of trash if it has a 3/4" elbow in it if you've never seen one, like at the hardware store).
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Old 05-08-2005, 12:21 AM   #18
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Oh, and dig this...
we also plan on using the hot water heater to heat the waste oil before filtering. Makes it easier to filter, and if you get it up to a hot enough temp. 150F, and leave it there 8-12 hours (yeah, means plugging into non-renewable 120V outlets, but I'm working on it..) you boil out any water in you crap waste oil, which is super important. Our truck system, once we've got it developed, will also work well for buses. A collection tank we call the 'dirty' tank we fill straight from the dumpster. It heats the oil and pushes it through a series of filters before it gets to the feed tank. Can't get water in it though. You can test if dumpster grease has water by grabbing a cup, putting it on the stove and bringing it to 100C (boiling point of water) and if it bubbles, it's wet. And don't stick your hose too far into the dumpster. water wants to get away from grease and will head for the bottom of the dumpster. I like to go first thing in the morning when before a place opens. That's when it's coldest, and you can also see how bad the grease is by the viscosity at this lower temp, and you can be fairly sure that it's been around 8 hours or so since they threw any grease in, time for a small amount of settling.
But I'm babbling.
one last thing. check out my links page http://www.windrift.us/dreamerbiofuels/links.htm
I am obsessed with biofuels and have put a lot of time into the site, and the links page kicks ass, I must say.
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Old 05-14-2005, 12:03 AM   #19
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Hi,
Thanks guys for the nice words,but I cannot take all the credit for this. Our friend Greg Archembault helped Moss and I a lot on this and he really is the brains behind the system.

The only problems we have with it are the manual shut off valves which seem to let in a lot of air.Moss is replacing the multitude of brass fittings with simple hose clamp fittings and fuel line hose,also changing the valves to a six port valve.

You see,when we went to put it all together we could not find a lot of the fittings so we had to do all these strange fittings to get to the size we need.

Anyway,we will do an updtae when we change things and report how it all works out.......Pix

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