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Does the EPA test for CO content in stove emissions? ENGLANDER
Posted: 23 August 2008 04:38 PM   [ Ignore ]   [ # 16 ]
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That’s only valid for gas however.

The elemental compositions of gas oil and wood are drastically different.

Natural Gas is CH4

Diesel ranges from

C10H20 to C15H28

Wood varies greatly dependent on species, however the fixed carbon in wood represents more than 50% of the total mass.

I think you’re operating under the mistaken assumption that all fuels burn the same and they do not.

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Posted: 23 August 2008 05:24 PM   [ Ignore ]   [ # 17 ]
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take the time to read my links

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Axis develops from circle learning shortcuts.& U SHOULD READ THESE LINKS
http://www.umass.edu/umext/floriculture/fact_sheets/greenhouse_management/jb_fuels.htm rolleyes
http://www.chimneysweeponline.com/howood.htm
http://hearth.com/econtent/index.php/articles/fuel_cost_comparison_calculator/
http://www.toolbase.org/Building-Systems/HVAC/ventilation-requirements
http://www.climate-charts.com/World-Climate-Index-Map.html
http://www.process-heating.com/CDA/Articles/Energy_Notes/d0906053d9268010VgnVCM100000f932a8c0____
http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/phase.html
http://www.woodheat.org/outdoorair/outdoorairmyth.htm

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Posted: 24 August 2008 02:50 AM   [ Ignore ]   [ # 18 ]
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take the time to read my links

My bad, I misunderstood what you were trying to say.

My point was most solid fuel appliances especially on a small scale will not get CO numbers below 150PPM and for natural draft units it’s closer to 500PPM or more.

Even large industrial boilers (150,000+ lb/hr steam)unless they are a FBC design don’t fare much better than 150 PPM.

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Posted: 24 August 2008 02:33 PM   [ Ignore ]   [ # 19 ]
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The heat of combustion of producer gas is rather low compared to other fuels. Taylor reports that “producer gas” has a lower heating value of 5.7 MJ/kg versus 55.9 MJ/kg for natural gas and 44.1 MJ/kg for gasoline. The heating value of wood is typically 15-18 MJ/kg. Presumably, these values can vary somewhat from sample to sample. The same source reports the following chemical composition by volume which most likely is also variable:

Nitrogen N2 50.9%,
Carbon monoxide CO 27.0%,
Hydrogen H2 14.0%,
Carbon dioxide CO2 4.5%,
Methane CH4 3.0%,
Oxygen O2 0.6%.
this is woodgas simple analysis. take note that even though ch4 may be largest BTU contributor [as per cozy heat’s analasys last year] the CH4 can result in more CO if inadequate O2 is present during combustion.
i miss COZY HEAT!

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Axis develops from circle learning shortcuts.& U SHOULD READ THESE LINKS
http://www.umass.edu/umext/floriculture/fact_sheets/greenhouse_management/jb_fuels.htm rolleyes
http://www.chimneysweeponline.com/howood.htm
http://hearth.com/econtent/index.php/articles/fuel_cost_comparison_calculator/
http://www.toolbase.org/Building-Systems/HVAC/ventilation-requirements
http://www.climate-charts.com/World-Climate-Index-Map.html
http://www.process-heating.com/CDA/Articles/Energy_Notes/d0906053d9268010VgnVCM100000f932a8c0____
http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/phase.html
http://www.woodheat.org/outdoorair/outdoorairmyth.htm

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Posted: 24 August 2008 05:35 PM   [ Ignore ]   [ # 20 ]
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I’m starting to work with some new wood gasifiers (200 MMBtu/hr units) next month as I do combustion calcs I’ll let you know what I find. Basically they are taking the produced gas and burning it in a process that requires direct firing with no substantial flyash constituent.

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2007 Wood Pile Pictures

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Posted: 24 August 2008 05:52 PM   [ Ignore ]   [ # 21 ]
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i just learned that wood {C] burned to CO yields 27 KCAL/MOLE
whereas
CO-CO2 yields 68KCAL/MOLE

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Axis develops from circle learning shortcuts.& U SHOULD READ THESE LINKS
http://www.umass.edu/umext/floriculture/fact_sheets/greenhouse_management/jb_fuels.htm rolleyes
http://www.chimneysweeponline.com/howood.htm
http://hearth.com/econtent/index.php/articles/fuel_cost_comparison_calculator/
http://www.toolbase.org/Building-Systems/HVAC/ventilation-requirements
http://www.climate-charts.com/World-Climate-Index-Map.html
http://www.process-heating.com/CDA/Articles/Energy_Notes/d0906053d9268010VgnVCM100000f932a8c0____
http://hyperphysics.phy-astr.gsu.edu/hbase/thermo/phase.html
http://www.woodheat.org/outdoorair/outdoorairmyth.htm

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