[Stoves] datalogger

Fri Sep 1 12:29:34 CDT 2006

For adam u partner,

Hobbo seems the cheapest, you have to think on 4 probes at same time or one
probe by one probe (can be nice but starting hase complicated), two by two
(probes always)....
all the best

------------------------------------------------------------------------
Jean-François Rozis
Tél: 0467643816
----- Original Message ----- 
From: <stoves-request at listserv.repp.org>
To: <stoves at listserv.repp.org>
Sent: Friday, September 01, 2006 7:00 PM
Subject: Stoves Digest, Vol 3, Issue 1

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> Today's Topics:
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>    1. Data logger for temperatures ? (adam u partner)
>    2. Re: Data logger for temperatures ? (Bruce Stahlberg)
>    3. Re: answer for David Whitfield inquiry (Paul S. Anderson)
>    4. Re: Data logger for temperatures ? (Dean Still)
>    5. steam consumption in rice husk quasi gasifier stove
>       (alexis belonio)
>    6. Re: steam consumption in rice husk quasi gasifier stove
>       (CEDESOL Foundation lists)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Thu, 31 Aug 2006 20:45:32 +0200
> From: adam u partner <scda1 at t-online.de>
> Subject: [Stoves] Data logger for temperatures ?
> To: Stoves at listserv.repp.org
> Message-ID: <44F72E4C.1000805 at t-online.de>
> Content-Type: text/plain; charset=ISO-8859-15; format=flowed
>
> Stoves at listserv.repp.org
>
> Data logger for temperatures ?
> I love data logger and plotting with them temperature curves ...
> Unfortunately my old one dates from 1992 and works with a
> "DOS"-operating system and no USB of course.
> a  COMARK, KM1400 Serie MkII Datalogger,
> ---
> Want to buy a new one, came across the  handsome TESTO 177-T4,
> www.testo.com,
> 4 sensors possible, temp. max 1000?C
> costs 310?, plus 90? for software and adapter,  plus 16%Tax, (for
> temperature sondes I can use my old ones)
> i want to use it to record temperatures on my low-cost retort kiln
> (charcoal production).
>
> Anybody has some recommendation buying something else before i spend my
> money for this?
> Thanks
> Chris A.
>
>
>
>
> ------------------------------
>
> Message: 2
> Date: Thu, 31 Aug 2006 14:11:12 -0500
> From: "Bruce Stahlberg" <aes at bitstream.net>
> Subject: Re: [Stoves] Data logger for temperatures ?
> To: "adam u partner" <scda1 at t-online.de>, <Stoves at listserv.repp.org>
> Message-ID: <004901c6cd31$3d1621b0$0400a8c0 at aescmlhs7wpzrm>
> Content-Type: text/plain; format=flowed; charset="iso-8859-15";
> reply-type=original
>
> Chris,
>
> For comparison purposes, you can check out:
>
> http://www.picotech.com/temperature-humidity.html
>
> I think this is what Aprovecho uses or at least has used in the past.
>
> What was the cost of the TESTO unit?
>
> I'm interested in finding out what you learned so please do a summary when
> you make a decision.
>
> Thanks,
>
> Bruce
> Bruce
> ----- Original Message ----- 
> From: "adam u partner" <scda1 at t-online.de>
> To: <Stoves at listserv.repp.org>
> Sent: Thursday, August 31, 2006 1:45 PM
> Subject: [Stoves] Data logger for temperatures ?
>
>
> Stoves at listserv.repp.org
>
> Data logger for temperatures ?
> I love data logger and plotting with them temperature curves ...
> Unfortunately my old one dates from 1992 and works with a
> "DOS"-operating system and no USB of course.
> a  COMARK, KM1400 Serie MkII Datalogger,
> ---
> Want to buy a new one, came across the  handsome TESTO 177-T4,
> www.testo.com,
> 4 sensors possible, temp. max 1000?C
> costs 310?, plus 90? for software and adapter,  plus 16%Tax, (for
> temperature sondes I can use my old ones)
> i want to use it to record temperatures on my low-cost retort kiln
> (charcoal production).
>
> Anybody has some recommendation buying something else before i spend my
> money for this?
> Thanks
> Chris A.
>
>
> _______________________________________________
> Stoves mailing list
> Stoves at listserv.repp.org
> http://listserv.repp.org/mailman/listinfo/stoves_listserv.repp.org
>
>
>
>
> ------------------------------
>
> Message: 3
> Date: Thu, 31 Aug 2006 18:08:02 -0500
> From: "Paul S. Anderson" <psanders at ilstu.edu>
> Subject: Re: [Stoves] answer for David Whitfield inquiry
> To: alexis belonio <atbelonio at yahoo.com>
> Cc: stoves at listserv.repp.org
> Message-ID: <20060831180802.4obskxgnhckogwkk at webmail2.ilstu.edu>
> Content-Type: text/plain; charset=ISO-8859-1; format="flowed"
>
> Alexis, David and all,
>
> The steam injector is for turbulance, and that helps shorten the flame.
>   A tall
> flame that excessively licks the bottom of the pot (leaving much more
black
> soot) also results in less total efficiency, so there is a trade off of
> loss of
> efficiency from the steam (short flame) and the longer flame.
>
> Alexis, how long does the 250 ml of water last as a supply of steam?  I
really
> liked your photos of your device.  And thanks for acknowledging Mr. Hao in
> China; he deserves much credit for the steam box application.
>
> I question (and await your results) about a central steam ejector
> because it is
> the crossover that makes the trubulance, and a parallel flow might not mix
as
> well.
>
> Unfortunately, at Stove Camp there was not sufficient time (needing time
under
> the emissions hood) to do all the tests we wanted to do.  The one effort
under
> the hood with the Hao Steam Box in the Chinese combustor did not yield
> meaningful results because the fuel container (where the gases are made)
had
> too many un-controlled primary-air entrances, especially for the trial
> with the
> "official fuel" that is kiln-dried wood.  The whole "burn" raced along
with
> minimal control.  When I corrected the air entrance problem, the
configuration
> seemed to work well, but that was not under the hood.
>
> Paul
>
> -- 
> Paul S. Anderson, Ph.D., Geography professor - Emeritus
> Telephone:  USA-309-452-7072 (residence and office)
> Internet site:  www.ilstu.edu/~psanders
> For my gasifier stoves info, go to:
> http://bioenergylists.org/contributors#Paul_Anderson
>
>
> Quoting alexis belonio <atbelonio at yahoo.com>:
>
> > To David,
> >
> > Thanks for the email! Sorry for not immediately
> > answering your quiries.  I just found it only today!
> >
> > The pot I used for the stove has a diameter of 26 cm
> > and a height of 16 cm.  It is made from aluminum and
> > can accommodate up to 5 liters of water in capacity.
> > The steam is injected into the upper cylinder of the
> > stove where the flame is comig out.  The steam box
> > which contain 250 ml of water will generate steam at
> > about 6 minutes.  The flame combustion is improved
> > once the steam hit the burning gases.  The
> > hydrocarbons during combustion is washed out by the
> > steam it it goes with the ash as it falls down the
> > burning layer of rice husk.  Tests had shown that good
> > quality flame can be produced from steam injection but
> > there is reduction in the thermal efficiency observed
> > in the stove. The steam that crosses the burning gases
> > quenches the flame from hitting the pot. Presently, we
> > are developing a center steam injection that will
> > concurrent flow with the burning gases rather than
> > crossing it.  I will inform you then of this result
> > once I finished it.  You may also asked Dr. Anderson
> > about this and also Mr. Dean Still.  Both of them saw
> > how steam injection works well in wood stove during
> > our China Training on Biomass Gasification sponsord by
> > the Asia Regional Cookstove Program (ARECOP).
> >
> > Alexis
> >
> >
> >
> > __________________________________________________
> > Do You Yahoo!?
> > Tired of spam?  Yahoo! Mail has the best spam protection around
> > http://mail.yahoo.com
> >
> > _______________________________________________
> > Stoves mailing list
> > Stoves at listserv.repp.org
> > http://listserv.repp.org/mailman/listinfo/stoves_listserv.repp.org
> >
>
>
>
> ----------------------------------------------------------------
> This message was sent using Illinois State University Webmail.
>
>
>
>
>
> ------------------------------
>
> Message: 4
> Date: Thu, 31 Aug 2006 20:05:23 -0700
> From: "Dean Still" <dstill at epud.net>
> Subject: Re: [Stoves] Data logger for temperatures ?
> To: "'Bruce Stahlberg'" <aes at bitstream.net>, "'adam u partner'"
> <scda1 at t-online.de>, <Stoves at listserv.repp.org>
> Message-ID: <20060901030525.55005F at telchar.epud.net>
> Content-Type: text/plain; charset="utf-8"
>
> Look at Onset
>
> http://www.onsetcomp.com/
>
> Best,
>
> Dean
>
> -----Original Message-----
> From: stoves-bounces at listserv.repp.org
[mailto:stoves-bounces at listserv.repp.org] On Behalf Of Bruce Stahlberg
> Sent: Thursday, August 31, 2006 11:11 AM
> To: adam u partner; Stoves at listserv.repp.org
> Subject: Re: [Stoves] Data logger for temperatures ?
>
> Chris,
>
> For comparison purposes, you can check out:
>
> http://www.picotech.com/temperature-humidity.html
>
> I think this is what Aprovecho uses or at least has used in the past.
>
> What was the cost of the TESTO unit?
>
> I'm interested in finding out what you learned so please do a summary when
> you make a decision.
>
> Thanks,
>
> Bruce
> Bruce
> ----- Original Message ----- 
> From: "adam u partner" <scda1 at t-online.de>
> To: <Stoves at listserv.repp.org>
> Sent: Thursday, August 31, 2006 1:45 PM
> Subject: [Stoves] Data logger for temperatures ?
>
>
> Stoves at listserv.repp.org
>
> Data logger for temperatures ?
> I love data logger and plotting with them temperature curves ...
> Unfortunately my old one dates from 1992 and works with a
> "DOS"-operating system and no USB of course.
> a  COMARK, KM1400 Serie MkII Datalogger,
> ---
> Want to buy a new one, came across the  handsome TESTO 177-T4,
> www.testo.com,
> 4 sensors possible, temp. max 1000?C
> costs 310?, plus 90? for software and adapter,  plus 16%Tax, (for
> temperature sondes I can use my old ones)
> i want to use it to record temperatures on my low-cost retort kiln
> (charcoal production).
>
> Anybody has some recommendation buying something else before i spend my
> money for this?
> Thanks
> Chris A.
>
>
> _______________________________________________
> Stoves mailing list
> Stoves at listserv.repp.org
> http://listserv.repp.org/mailman/listinfo/stoves_listserv.repp.org
>
>
> _______________________________________________
> Stoves mailing list
> Stoves at listserv.repp.org
> http://listserv.repp.org/mailman/listinfo/stoves_listserv.repp.org
>
>
>
>
> ------------------------------
>
> Message: 5
> Date: Thu, 31 Aug 2006 23:04:55 -0700 (PDT)
> From: alexis belonio <atbelonio at yahoo.com>
> Subject: [Stoves] steam consumption in rice husk quasi gasifier stove
> To: Stoves at listserv.repp.org
> Message-ID: <20060901060455.26549.qmail at web50001.mail.yahoo.com>
> Content-Type: text/plain; charset=iso-8859-1
>
> Dear Paul, David, and All
>
> The 250 ml water inside the steam box can be consumed
> within 34 to 35 minutes. The steam-fuel ratio is about
> 1:6.  Test of the rice husk quasi gasifier stove
> indicate a reduction in the efficiecy of the stove
> when steam is used but there is an improvement on the
> quality of the flame.  I also observed that the
> surface that is heated directly of the steam becomes
> red hot than other surfaces.  If we redirect the flow
> of steam to the pot, this might improve the efficiency
> of the stove.  Any, I will try to build the stove
> first and test to see wheather it works or not.
>
> Alexis
>
> __________________________________________________
> Do You Yahoo!?
> Tired of spam?  Yahoo! Mail has the best spam protection around
> http://mail.yahoo.com
>
>
>
> ------------------------------
>
> Message: 6
> Date: Fri, 01 Sep 2006 08:37:12 -0400
> From: CEDESOL Foundation lists <lists.cedesol at gmail.com>
> Subject: Re: [Stoves] steam consumption in rice husk quasi gasifier
> stove
> To: alexis belonio <atbelonio at yahoo.com>
> Cc: Stoves at listserv.repp.org
> Message-ID: <44F82978.3040009 at gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Thanks forthe explaination Alexis,
>
> The flame certainly looks good in your pictures and the new ground you
> are covering (for us at least) is very interesting.  Much encouragement
> from us!
>
> un abrazo
> David
> alexis belonio wrote:
>
> >Dear Paul, David, and All
> >
> >The 250 ml water inside the steam box can be consumed
> >within 34 to 35 minutes. The steam-fuel ratio is about
> >1:6.  Test of the rice husk quasi gasifier stove
> >indicate a reduction in the efficiecy of the stove
> >when steam is used but there is an improvement on the
> >quality of the flame.  I also observed that the
> >surface that is heated directly of the steam becomes
> >red hot than other surfaces.  If we redirect the flow
> >of steam to the pot, this might improve the efficiency
> >of the stove.  Any, I will try to build the stove
> >first and test to see wheather it works or not.
> >
> >Alexis
> >
> >__________________________________________________
> >Do You Yahoo!?
> >Tired of spam?  Yahoo! Mail has the best spam protection around
> >http://mail.yahoo.com
> >
> >_______________________________________________
> >Stoves mailing list
> >Stoves at listserv.repp.org
> >http://listserv.repp.org/mailman/listinfo/stoves_listserv.repp.org
> >
> >
> >
>
>
>
>
> ------------------------------
>
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>
> End of Stoves Digest, Vol 3, Issue 1
> ************************************
>
>