Funny pic/gif thread...

IMG_1283.png
 
Patrick Johnson said:
What I hear about this:

When you use a gasoline generator to produce electricity for an electric car, you first lose energy in the generator’s conversion process, but then the electric car uses that electricity more efficiently than a gasoline car would use gasoline directly.

Due to the initial inefficiency of the generator, the overall efficiency might not be as high as using grid electricity. But it still tends to be better than the direct use of gasoline in a car.

pj
chgo
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The turbines used in electricity generation for the grid can be as much as 90% efficient. Your typical internal combustion engine is ~35% efficient.

Electric motors are typically in the 75% efficiency range; however, in the case of EVs you also have losses in storage media, i.e. batteries.

By using a diesel generator to charge your tesla, you're roughly losing about 10% efficiency over just driving an ICE based vehicle.

When towing a load, the efficiencies of EV's go out the window.

Jaden
 
Jaden said:
The turbines used in electricity generation for the grid can be as much as 90% efficient. Your typical internal combustion engine is ~35% efficient.

Electric motors are typically in the 75% efficiency range; however, in the case of EVs you also have losses in storage media, i.e. batteries.

By using a diesel generator to charge your tesla, you're roughly losing about 10% efficiency over just driving an ICE based vehicle.

When towing a load, the efficiencies of EV's go out the window.

Jaden
Click to expand...
Interesting - thanks.

Seems to me that, though we may not be there yet, we're on the right (or at least a better) track moving toward EVs over ICEs. Here's where I suspect we're going:
www.purdue.edu

Building the first highway segment in the U.S. that can charge electric vehicles big and small as they drive

Construction underway on test bed in Indiana to develop wireless charging for electric vehicles traveling at highway speeds.
www.purdue.edu www.purdue.edu
Bonus: no more "look at me" noisy cars.

OK... back to the funny.

pj <- mea culpa
chgo
 
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NevadaP said:
Oh, a 20hp generator can eventually supply enough electricity to power a 270hp car. But the 2nd law of thermodynamics demands that it would require much, much more than 270hp worth of gasoline fuel to do so.
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Depends on the generator. It's probably not this generator, nor used in this scenario, but if a generator is operating in its most efficient range, it burn the fuel much more efficiently than most car engines. There's probably a 10-20% loss though, so it would have to be a very special case. This guy got 14-24 mpg on the highway.
www.autoblog.com

YouTuber built gas-generator Tesla to avoid plugging in on 1,800-mile road trip - Autoblog

"I really like my Tesla, but what I don't like is stopping to charge," Matt Mikka of the YouTube channel Warped Perception said of his experiment.
www.autoblog.com www.autoblog.com
With regenerative braking and stop and go driving at lower speeds, it may be possible to get a very slight edge but that would have to be a very specific duty cycle.
 
tomatoshooter said:
Depends on the generator. It's probably not this generator, nor used in this scenario, but if a generator is operating in its most efficient range, it burn the fuel much more efficiently than most car engines. There's probably a 10-20% loss though, so it would have to be a very special case. This guy got 14-24 mpg on the highway.
www.autoblog.com

YouTuber built gas-generator Tesla to avoid plugging in on 1,800-mile road trip - Autoblog

"I really like my Tesla, but what I don't like is stopping to charge," Matt Mikka of the YouTube channel Warped Perception said of his experiment.
www.autoblog.com www.autoblog.com
With regenerative braking and stop and go driving at lower speeds, it may be possible to get a very slight edge but that would have to be a very specific duty cycle.
Click to expand...
Don't know what this is doing here but rare earth magnets are a total loss.
 
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