epa approved wood stoves contribute very little to smog, etc. gasifying wood stoves even less.
Steve Spence Subscribe to the Renewable Energy Newsletter & Discussion Boards. Read about Sustainable Technology: http://www.green-trust.org [EMAIL PROTECTED] ----- Original Message ----- From: "paul van den bergen" <[EMAIL PROTECTED]> To: <biofuel@yahoogroups.com> Sent: Sunday, March 23, 2003 9:50 PM Subject: Re: [biofuel] A biofuels question (sort of) > On Mon, 24 Mar 2003 10:23 am, Thor Skov wrote: > > OK, I lied, this isn't about biofuels per se, but > > rather about home energy generation. > > > > I am rebuilding my house in Seattle, and want to go > > with passive solar heating supplemented with an > > efficient wood fireplace insert (see, biofuels!). > > my only comment on this is be aware of wood stove emmissions. In cities they > seriously contribute to asthma causing smog. they are banned in my local > municipality in all new homes... people still install them though... *sigh* > > > My question is about solar water heating. I'd like to > > use solar panels and recaptured waste water heat to > > preheat water, store it in tanks, and then pipe it to > > electric on-demand heaters at the point of usage. > > Does anyone know of a design for such a system? > > No hints I am afraid, but one comment I would make is that Si based solar > panels decrease dramatically in efficiency when heated. so solar hot water > and solar power generation are contra-indicated. infact it is worth your > while to water cool you solar panels if you have access to cheap (rain) > water... > > there is a new type of solar panel - DSC - that utilises a different type of > electricity generation - nano-particle TiO2 and a photosensitive dye - that > increases efficiency with temperature... I was thinking of setting up a > parabolic trough lined with alfoil, a strip of these panels and backing them > with hot water pipes.... but I have too many other projects going at the > moment, so it will have to wait... > > > > > -- > Dr Paul van den Bergen > Centre for Advanced Internet Architectures > caia.swin.edu.au > [EMAIL PROTECTED] > IM:bulwynkl2002 > It's a book. Non-volatile storage media. Everyone should have one. > > > > 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/ > > > ------------------------ Yahoo! Groups Sponsor ---------------------~--> Your own Online Store Selling our Overstock. http://us.click.yahoo.com/rZll0B/4ftFAA/46VHAA/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/
