All great ideas. The simple one I made has a manifold at the top and bottom, with only 4 4 foot long abs pipes conecting them. I tested it one day just coverd with plastic and nothing attached. The result I got was encouraging, 70 deg in the bottom and 140 deg out the top. This can very easily be tweeked to get over 150 deg.
Brent >From: "girl_mark_fire" <[EMAIL PROTECTED]> >Reply-To: biofuel@yahoogroups.com >To: biofuel@yahoogroups.com >Subject: [biofuel] solar colector ( was Re: price of methanol ) >Date: Tue, 20 May 2003 21:13:41 -0000 > >My idea on a solar collector for BD involves running a heat >eschanger. (disclaimer: I've been thinking about this for two >years and haven't built it yet, so it's all in my head and needs to >get taken with a greain of salt) >The reason for the heat exchanger idea is that there are a few >different points in the process which could benefit from heat and >it seems to me that flexibility would be useful in what you can >heat from your solar collector. >(preheating before dewatering, then possibly preheating before >making fuel (if you dewater on a different day) , heating wash >water for less emulsion formation, or heating a wash tank to >break an emulsion if it formed), or... all from one set of collecors. >It of course means either having a heat exhchanger that you >move in and out of a tank (I don' tlike this idea), or it means >having a manifold with valves that can direct the heat eschang >medium to different applications (more expensive parts-wise) >which is what I want to do. > >The simplest system however is something like a batch water >heater- ie a large solar box cooker, with a barrrel of water or a >domestic water heater painted black encased in it. the water >doesn't circulate in the simplest scenario, the whole batch gets >heated all at once and used up all at once . This setup gets >water quite hot, and it should work well for water or for oil. >Do a search on the internet and you should be able to find a few >deigns for this kind of solar batch water heater... >mark > >--- In biofuel@yahoogroups.com, "Brent S" <[EMAIL PROTECTED]> >wrote: > > No pics or drawings of it, and I plan on changing the design a >bit too. And > > haven't figured out if I'll run the oil through it or run a heat >exchanger > > off of it to the oil. Ill post what I can when I get it finished. > > Brent > > Saskatchewan, Canada > > > _________________________________________________________________ MSN 8 helps eliminate e-mail viruses. Get 2 months FREE*. http://join.msn.com/?page=features/virus ------------------------ Yahoo! Groups Sponsor ---------------------~--> Get A Free Psychic Reading! Your Online Answer To Life's Important Questions. http://us.click.yahoo.com/Lj3uPC/Me7FAA/uetFAA/FGYolB/TM ---------------------------------------------------------------------~-> Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://archive.nnytech.net/ 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/
