Re:<12volt fan was Re: 40 W thermoelectric power

["Paul S. Anderson" <psanders@ilstu.edu>]

Scott and Bruno,

I have used several types of forced air.  A computer fan is NOT sufficient 
in my opinion.  It can impact an established fire, but is not sufficient 
when significant air is needed to get the fire going well.

An electric hair dryer has plenty (even too much) power, but too much is 
better than not enough.

Paul

At 11:12 AM 11/25/02 -0600, Scott Willing wrote:
>Thanks Bruno.
>
>I assumed something larger than a CPU fan would be required, but that
>shows how much I know. I'm just an electronics techie with an
>interest in stoves, but no expertise whatsoever. :-)
>
>Cheers,
>-=s
>
>
>On 23 Nov 2002 at 3:45, Bruno M. wrote:
>
> > Hi Stovers,
> > The less-than-12v fans are not rare you know,
> > every computer-fan supplier has them for
> > CPU-cooling, in 12 and 5 Volt.
> > I just picked 1of many examples by a Google search:
> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > http://www.apower.com.tw/p02.htm
> > type nr: FS0205LB
> > size 25x25x10 mm
> > rated voltage: 5 Volt                      rated current: 0.07A
> > rated power 0.40W                      max speed 6,000 r.p.m.
> > max airflow :0.85 cfm  [ 24 liter/min ]
> > max air pressure 0.08 in. H2O      noise level 22 dBA
> > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> > So you see, you can get them standard really smal.
> >
> > Greets
> > Bruno Meersman
> >
> > P.S. I have, in the meanwhile, some more info on that aircrete stuff
> > from Ytong, if you are still interested I'll post it here.
> > ================================== At 17:35 Friday 22/11/2002, Scott
> > Willing wrote: >Tom, > >This is encouraging. The Hi-Z thermopiles have
> > a basic output voltage >of 3.3V; I thought at least two would have to
> > be stacked to run a >typical 12V fan and I've only found one source of
> > <12V fans. (In my >experience a 12V brushless DC fan will run at 6V,
> > but not much less.) >Do you know the fan make/model? >I think there's
> > general agreement that a few watts for a fan should >be lots. I don't
> > know where this 40W figure came from. > >-=s
> > >===================================== >On 21 Nov 2002 at 16:07, Tom
> > Reed wrote: > > > Dear Peter and All: > > Our WoodGas Cookstove
> > (Campstove in the U.S.) uses a 1.5 V battery > > which lasts 3 hours
> > on high and 6 on  low, small fan and consumes 0.75 > > W.  It makes
> > ALL the difference in combustion. > > >...cut...
> >
> > - ~~~~~~~~~~~<\^/>~~~~~~~~~~~~ --
> >      To reply : mailto:brunom1@yucom.be
> >
> >
> > -
> > Stoves List Archives and Website:
> > http://www.crest.org/discussion/stoves/200209/
> > http://crest.org/discussiongroups/resources/stoves/
> > >
> > Stoves List Moderators:
> > Ron Larson, ronallarson@qwest.net
> > Elsen L. Karstad, elk@wananchi.com www.chardust.com
> >
> > Other Biomass Stoves Events and Information:
> > http://www.crest.org/articles/static/1/1010424940_7.html Bioenergy
> > http://www.crest.org/articles/static/1/1011975339_7.html Gasification
> > http://www.crest.org/articles/static/1/1011975672_7.html Carbon
> >
> > List-Post: <mailto:stoves@crest.org>
> > List-Help: <mailto:stoves-help@crest.org>
> > List-Unsubscribe: <mailto:stoves-unsubscribe@crest.org>
> > List-Subscribe: <mailto:stoves-subscribe@crest.org>
> > >
> > For information about CHAMBERS STOVES
> > >http://www.repp.org/discussiongroups/resources/stoves/Chambers/Chambe
> > >rs.htm
> >
>
>
>
>-
>Stoves List Archives and Website:
>http://www.crest.org/discussion/stoves/200209/
>http://crest.org/discussiongroups/resources/stoves/
> >
>Stoves List Moderators:
>Ron Larson, ronallarson@qwest.net
>Elsen L. Karstad, elk@wananchi.com www.chardust.com
>
>Other Biomass Stoves Events and Information:
>http://www.crest.org/articles/static/1/1010424940_7.html Bioenergy
>http://www.crest.org/articles/static/1/1011975339_7.html Gasification
>http://www.crest.org/articles/static/1/1011975672_7.html Carbon
>
>List-Post: <mailto:stoves@crest.org>
>List-Help: <mailto:stoves-help@crest.org>
>List-Unsubscribe: <mailto:stoves-unsubscribe@crest.org>
>List-Subscribe: <mailto:stoves-subscribe@crest.org>
> >
>For information about CHAMBERS STOVES
> >http://www.repp.org/discussiongroups/resources/stoves/Chambers/Chambers.htm

Paul S. Anderson, Ph.D.,  Fulbright Prof. to Mozambique 8/99 - 7/00
Rotary University Teacher Grantee to Mozambique >10 mo of 2001-2003
Dept of Geography - Geology (Box 4400), Illinois State University
Normal, IL  61790-4400   Voice:  309-438-7360;  FAX:  309-438-5310
E-mail: psanders@ilstu.edu - Internet items: www.ilstu.edu/~psanders


-
Stoves List Archives and Website:
http://www.crest.org/discussion/stoves/200209/
http://crest.org/discussiongroups/resources/stoves/
>
Stoves List Moderators:
Ron Larson, ronallarson@qwest.net
Elsen L. Karstad, elk@wananchi.com www.chardust.com

Other Biomass Stoves Events and Information:
http://www.crest.org/articles/static/1/1010424940_7.html Bioenergy
http://www.crest.org/articles/static/1/1011975339_7.html Gasification
http://www.crest.org/articles/static/1/1011975672_7.html Carbon

List-Post: <mailto:stoves@crest.org>
List-Help: <mailto:stoves-help@crest.org>
List-Unsubscribe: <mailto:stoves-unsubscribe@crest.org>
List-Subscribe: <mailto:stoves-subscribe@crest.org>
>
For information about CHAMBERS STOVES
>http://www.repp.org/discussiongroups/resources/stoves/Chambers/Chambers.htm