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CO2 conversion

  • 22-07-2013 11:20am
    #1
    buchaill
    Registered Users, Registered Users 2 Posts: 2 ✭


    Hi

    I have recently had an exhaust gas analysis carried out.

    The CO2 reading was 14.6 %obj (i dont know what this means)

    I need to convert this to g/km which is the normal measurment of CO2 for a car.

    If you can help I would be very greatful of if you could point me in the right direction.

    Thanks in advance.


Comments

  • #2
    sigmundv
    Registered Users, Registered Users 2 Posts: 427 ✭✭sigmundv


    If the below is correct, then you have got the fraction of carbon dioxide in the exhaust gas. To convert it to g/km I'd imagine that you have to know the total mass of the exhaust gas per km.
    CO2 = Carbon Dioxide, concentration of the exhaust in percent of the total sample. = Completely Burned Petrol, represents how well the air/fuel mixture is burned in the engine ( efficiency ). This gas gives a direct indication of combustion efficiency. It is generally 1-2% higher at 2500 RPM than at idle. This is due to improved gas flow resulting in better combustion efficiency. Maximum is around 16%.

    http://www.crypton.co.za/Tto%20know/Emissions/exhaust%20emissions.html


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