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silence7@slrpnk.net to solarpunk memes@slrpnk.netEnglish ·
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8 个月前

80% of your gas money goes out the tailpipe

slrpnk.net

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80% of your gas money goes out the tailpipe

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silence7@slrpnk.net to solarpunk memes@slrpnk.netEnglish ·
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8 个月前
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Key context: thermodynamics dictates that heat engines waste a lot of energy.

Credit: Karin Kirk

  • ShrimpCurler@lemmy.dbzer0.com
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    8 个月前

    I think the 80% number is outdated (although most of the energy is still wasted)

    F1 engines achieve a peak thermal efficiency above 50 percent, significantly higher than a modern passenger car’s 35 percent thermal efficiency - https://www.motor1.com/news/655596/video-how-f1-engines-make-1000hp/

    So more like 65% goes out the tailpipe…

    • Miles O'Brien@startrek.website
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      8 个月前

      I’ll have you know 65% does not go out of my tail pipe.

      It goes out a hole in the exhaust manifold that I’m too poor to patch up.

      • Mac@mander.xyz
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        8 个月前

        If you take it off I’ll weld it for you.

        • kautau@lemmy.world
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          8 个月前

          Is this the modern day version of getting beads at mardi gras

      • Akasazh@feddit.nl
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        8 个月前

        I have Keiko patch up mine

      • clickyello@lemmy.world
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        8 个月前

        oof. fuckin felt

    • BakerBagel@midwest.social
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      8 个月前

      If your rolling coal, you are literally pumping unused diesel fuel out the car. You’re efficiency is absolute dog shit.

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