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(fwd) where does the energy go?

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  • murdoch
    seems of use to study a bit. http://www1.eere.energy.gov/vehiclesandfuels/facts/2012_fotw709.html
    Message 1 of 3 , Jan 25, 2012
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      seems of use to study a bit.

      http://www1.eere.energy.gov/vehiclesandfuels/facts/2012_fotw709.html

      >Fact #709: January 9, 2012
      >Engine Energy Use: Where Does the Energy Go?
      >Not all of the fuel that is put into a car's fuel tank is used to move the car down the road. In fact, only 14-16% of the energy is used for that purpose. The rest of the energy is lost to engine inefficiencies or used to power accessories.
    • MarketMole
      Murdoch, And to look at the truck numbers linked at the bottom of that page - the considerable differences between city/highway are revealing. Great
      Message 2 of 3 , Jan 25, 2012
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        Murdoch,

        And to look at the truck numbers linked at the bottom of that page - the
        considerable differences between city/highway are revealing.

        Great information. Thanks.

        MM

        On Wed, Jan 25, 2012 at 7:31 AM, murdoch <murdoch@...> wrote:

        > **
        >
        >
        >
        > seems of use to study a bit.
        >
        > http://www1.eere.energy.gov/vehiclesandfuels/facts/2012_fotw709.html
        >
        > >Fact #709: January 9, 2012
        > >Engine Energy Use: Where Does the Energy Go?
        > >Not all of the fuel that is put into a car's fuel tank is used to move
        > the car down the road. In fact, only 14-16% of the energy is used for that
        > purpose. The rest of the energy is lost to engine inefficiencies or used to
        > power accessories.
        >
        >


        [Non-text portions of this message have been removed]
      • Forbes Black
        Typical efficiency of an automotive drivetrain/engine assembly is 17%-22%, so that 14-16% efficiency figure that includes power used by accessories seems
        Message 3 of 3 , Jan 25, 2012
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          Typical efficiency of an automotive drivetrain/engine assembly is 17%-22%, so that 14-16% efficiency figure that includes power used by accessories seems reasonable.
           
          Where does the energy go?  Mostly to lost heat.  Ever notice how cool an electric motor runs
          when compared to an internal combustion engine?  That's efficiency in action!
           
          Cheers,

          Forbes
          --- On Wed, 1/25/12, murdoch <murdoch@...> wrote:


          From: murdoch <murdoch@...>
          Subject: [future-fuels-and-vehicles] (fwd) where does the energy go?
          To: murdoch@...
          Date: Wednesday, January 25, 2012, 7:31 AM



           




          seems of use to study a bit.

          http://www1.eere.energy.gov/vehiclesandfuels/facts/2012_fotw709.html

          >Fact #709: January 9, 2012
          >Engine Energy Use: Where Does the Energy Go?
          >Not all of the fuel that is put into a car's fuel tank is used to move the car down the road. In fact, only 14-16% of the energy is used for that purpose. The rest of the energy is lost to engine inefficiencies or used to power accessories.







          [Non-text portions of this message have been removed]
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