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Bacharach Fyrite Classic Combustion Test Kit

Part Number:0010-5022
Bacharach Fyrite Classic Combustion Test Kit
Price:$730.00

Availability:

in stock

Bacharach Oil Combustion Test Kit

Oil Combustion Test Kit, For Use on Oil Furnaces and BoilersShipping cost of $28 will be added due to DOT required HazMat shipping.Will drop ship from Manufacturer. HAZMAT SHIPPING FEES MAY APPLY

Technical details...

Combustion converts the carbon in the fuel to CO2. For each type of fuel there is a maximum CO2 that can be converted. When you select the fuel in the analyzer, the CO2 is calculated from the fuel type by the percentage of O2 left in the flue gas. Typically for natural gas (at least with a digital combustion analyzer) the ultimate CO2 is 11.7%. Some analyzers also allow for the max CO2 to be input by the user if the heat content of the fuel is known.

The ultimate CO2 would be derived from stoichiometric combustion in which there is no excess air and no excess fuel present during the combustion process. In reality, in the HVAC industry we are striving not for stoichiometric combustion, but complete combustion in which all hydrogen and carbon in the fuel are oxidized to H2O and CO2. For complete combustion to occur, we have to have excess air, or air supplied in excess of what is needed typically because of poor mixing of the fuel and air during the combustion process. If excess air is not provided we will not have the complete conversion of carbon to CO2, and will end up with the formation of partially oxidized compounds, such as carbon monoxide and aldehydes.

The percentage of excess air required is based upon several things including;

  • Equipment application (commercial, residential, industrial)
  • Expected variations in fuel properties (wobble numbers)
  • Combustion air supply rates and air density
  • Degree of operator supervision required or available (summer winter adjustments)
  • Control requirements such as O2 trim

For maximum combustion efficiency low excess air is desirable. For residential furnaces it is typically 50% however additional air may be required for dilution to prevent condensation of the flue gasses. This could be introduced into the appliance after the point of combustion through a draft diverter or as excess air which goes completely through the combustion process.

Classically combustion analysis was done using Fyrite® absorbing fluid which is selective in the chemical absorption of carbon dioxide or oxygen, respectively. The CO2 reading on the dumbbell or shaker analyzer is used to calculate combustion efficiency.

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Condition:

New

Code:

3

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