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Interesting chart on energy use

Discussion in 'Prime Fuel Economy & EV Range' started by priuscatprimeguy, Nov 23, 2017.

  1. priuscatprimeguy

    priuscatprimeguy Senior Member

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    [​IMG]
     
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  2. huskers

    huskers Senior Member

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    I needed my GPS to get through that.
     
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  3. bisco

    bisco cookie crumbler

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    is this one of those new round about tideland was talking about?
     
  4. Mendel Leisk

    Mendel Leisk Senior Member

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    Seems like precious little hydro generation. Due to States being more arid? Much higher hydro percentage in Canada I would think, but then a fraction of the population, and we're pretty soggy.
     
  5. Piwacet

    Piwacet Junior Member

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    He is intelligent, but not experienced. His pattern indicates two-dimensional thinking.
     
  6. pilotgrrl

    pilotgrrl Senior Member

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  7. fuzzy1

    fuzzy1 Senior Member

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    It is quite intuitive from my engineering view.
     
    #7 fuzzy1, Nov 24, 2017
    Last edited: Nov 24, 2017
  8. wjtracy

    wjtracy Senior Member

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    Seems like the more North you go, the more hydro is made. Hence PNW and Canada export hydro power. Not sure if Europe has the same trend
     
  9. Mendel Leisk

    Mendel Leisk Senior Member

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    Yeah as soon as you get up in a plane, heading east across Canada, it seems like it's 50/50 land/water. A lot of times the routes sweep into northern US.

    That might have been nixed (fallout from 911?), the US got stickier about Canadian commercial flights dipping into the States?
     
  10. wjtracy

    wjtracy Senior Member

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    That air flight problem has to do with the privatization of air traffic control.
    Canada has downsized air traffic control staff to handle only normal, fair weather route, so when storm clouds are brewing, the air traffic controllers in the USA, where we have extra people sitting around just in case, cannot re-route to Canada because there is no extra staff in Canada to handle the bad weather traffic. Also Canada now charges a fee to airlines for the time they spend in Canada air space.

    But USA may also head in this direction. My cousin is a recently retire air traffic controller up near Canada so he would have been invovled in re-routes.
     
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  11. Mendel Leisk

    Mendel Leisk Senior Member

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    Interesting, thanks.
     
  12. Oniki

    Oniki Active Member

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    2 out of 3 is an energy reject

    ;-)
     
  13. JamesBurke

    JamesBurke Senior Member

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    No no it's the new Big Dig Boston Metrorail. Greyed out areas aren't completed yet. 2030? GPS doesn't work underground. Ever gone shopping in Vegas and get lost?

    We have a new "Roundabout" that is shaped like a ?

    When fly to Eur-asia you fly "over the pole" well near by anyway ( Live Flight Tracker ✈ FlightAware)
    https://arc.aiaa.org/doi/abs/10.2514/atcq.22.1.21
    Always wondered if you could see the ground or if it always under a cloud layer if you're at FL400. Best way to see the big picture on what's a very long flight.

    Look at all the rejected energy. Think of the greenhouses and normal houses we could heat with this. Denmark already does this somewhat.
     
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  14. fuzzy1

    fuzzy1 Senior Member

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    The large reject fraction is an inherent consequence of converting heat energy to mechanical energy. But in general practice, we are still far from the theoretical limits, so there is vast room for improvement.
    Carnot cycle - Wikipedia
    Carnot Cycle
     
  15. Oniki

    Oniki Active Member

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    I know, but I found the terminology amusing.

    The numbers do point out something interesting though: despite all the hoopla over super efficient burning of natural gas, the national thermo efficiency remains in the toilet at around a third. One more reason to move to solar and wind without delay.
     
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  16. fuzzy1

    fuzzy1 Senior Member

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    The only real problem with the super efficient natural gas plants is that we have so few of them. The Chinese have vastly more.

    Instead, we have more older less efficient gas plants, plus a boatload of even less efficient legacy coal plants, pushing up that reject fraction. And the nuclear plants are likely pushing it up too, though their low thermal efficiency is a bit of a red herring for these purposes.
     
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