Quote:
Originally Posted by Magajgfha
And that's exactly why I find the title misleading.
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*Mechanical engineering requires the study of thermodynamics.
*Within the study of thermo,engineers,or physicists are introduced to the 2nd Law of thermodynamics,which introduces the concept of 'Entropy'.
*Entropy has to do with how much work can you get out of a system,with respect to how much energy you're putting in.
*Understanding thermal and mechanical efficiency requires that you understand entropy.
*Allowing any high school student to graduate without a knowledge of Entropy is the greatest disservice a public educator could bestow upon a student.
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*If you take the amount of Btus in a gallon of gas (111,836,for Regular Unleaded,10% Ethanol ) this can easily be converted to Kilowatt/hours.
*Your gas tank capacity can be compared to a battery pack,or visa-versa.
*If you compare the range of a BEV,compared to the average ICE vehicle,all else being equal,on a Tank-to-wheels,or Battery-to-wheels Btu basis,you find that the electric powertrain will get you 3-times farther down the road,for an equivalent amount of 'fuel'.
*It's just straight engineering.No voodoo numbers manipulations.