[Stoves] Gas Sensing

[Lanny Henson]

>Dean said- I'd like to make a Test Kitchen next week to be used with the 
>IAP meter.

LH- I like this idea, I am also planning to set up a sealed room to test 
stoves. I was planning to do a complete test burn inside a sealed room with 
a known volume and then check the gas levels.
Will this work? It would be nice to be able to test without a flow hood.
I realize you would not be able to see accurate data as the stove burns, 
just a total at the end.
Lanny


----- Original Message ----- 
From: "Dean Still" <dstill at epud.net>
To: "'Discussion of biomass cooking stoves'" <stoves at listserv.repp.org>
Sent: Saturday, February 09, 2008 12:35 AM
Subject: Re: [Stoves] Gas Sensing


> Dear Frank,
>
> What do you think of the following idea? Did you see Nordica's IAP meter 
> at
> ETHOS? The small sealed box measures CO and PM in room air so it is not a
> combustion analyzer but instead tracks levels of CO and PM in cooler room
> air. The IAP meter could conceivably be used to compare stove emissions if
> the room was standardized. In "Comparing Cook Stoves" the 18 tests done in
> the Test Kitchen and under the hood had quite similar results.
>
> I'd like to make a Test Kitchen next week to be used with the IAP meter.
>
> Imagine a 10' by 10' by 8' room with a door. Enter the room and close the
> tight fitting door. There is a 6" in diameter hole in one of the walls of
> the room. There is a hood above a testing bench on the opposite wall with 
> an
> electric fan. There is a gauge that tells how much air is going through 
> the
> exit pipe from the hood. The exit pipe enters another small room with a 6"
> in diameter hole in the opposite wall. The IAP meter is in a determined
> position in the room. All the smoke and gases enter the hood and then fill
> the next room containing the IAP meter. All the smoke and gases leave the
> IAP meter room through the 6" in diameter hole. The air exchange rate is
> controlled and describable. The fan is adjusted to create a described
> velocity through the pipe leaving the hood. After the test, a WBT or 
> better
> yet a CCT in which local cooks run the experiment, the data is downloaded 
> to
> a computer for analysis using Nordica's software.
>
> We could build this next week and see how big the holes should be to 
> create
> the ppm of CO and PM to be in the best range for the IAP meter. We could
> test a couple of stoves and see how the results compare to the tests done
> with the hood. We can try to replicate the findings in the book in which 
> the
> hood and the Test Kitchen results paralleled each other.
>
> If it works, then we should have a little more than $2,000 method for
> testing stoves that measures both CO and PM and has replicable data for 
> use
> in regional testing centers and in Paul Anderson's garage.
>
> Best,
>
> Dean
>
>
>
>
> _______________________________________________
> Stoves mailing list
> Stoves at listserv.repp.org
> http://listserv.repp.org/mailman/listinfo/stoves_listserv.repp.org
> http://stoves.bioenergylists.org
> http://info.bioenergylists.org
>