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Thread: 95-octane

  1. #1


    Hi every one can you help me pleas
    What is the heating value of 95-octane unleaded gasoline in KJ/Kg ?

  2. #2
    42.4 - 44.4 MJ/kg (not a well resurched figure, use at your own risk)

    I'm interested in how you will use this number in FSAE, and reminds me I should do my own calcs to determine the engines efficiency.
    University of Tasmania (UTAS)

  3. #3

    On any forum, it's generally appreciated if you search first.
    Andrew Palardy
    Kettering University - Computer Engineering, FSAE, Clean Snowmobile Challenge
    Williams International - Commercial Turbofan Controls and Accessories

    "Sometimes, the elegant implementation is a function. Not a method. Not a class. Not a framework. Just a function." ~ John Carmack

    "Any sufficiently advanced technology is indistinguishable from magic" ~Arthur C. Clarke

  4. #4
    Is it 95 research, motor, or mixed (US) octane?

    Is it all-hydrocarbon gasoline, or a blend with ethanol or methanol?

    If you do not get the exact answer for the fuel you have, how far off does the value you used for simulation have to be before your spark plug changes from the brown you anticipated to "death grey"?
    Charles Kaneb
    Magna International
    FSAE Lincoln Design Judge - Frame/Body/Link judging area. Not a professional vehicle dynamicist.

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