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Jan 14, 2024 22:49:09   #
Dikdik Loc: Winnipeg, Canada
 
Reuss Griffiths wrote:
...if you converted that amount of diesel fuel into electricity, it would only power a similar sized EV about 80-90 miles.


Most diesel locomotives that power trains convert diesel fuel to electricity.

"Diesel Locomotives use electricity to drive forward motion despite the name 'diesel'. A large diesel engine turns a shaft that drives a generator which makes electricity. This electrical energy powers large electric motors at the wheels called 'traction motors'. DC and AC Power: Some locomotives use DC generators and others use AC."

https://edisontechcenter.org/Dieseltrains.html

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Jan 14, 2024 23:00:47   #
Reuss Griffiths Loc: Ravenna, Ohio
 
jaymatt wrote:
I am a firm believer in climate change. I do not, however, believe that there is anything that we can do about it because it is a natural occurrence. Weather history shows us that there have been climate cycle changes for thousands of years.

If there is such an entity as Mother Nature, she is surely laughing in our faces at our thinking we can change it. Roll with the punches, my friends, roll with the punches.

If the bigwigs touting these claims really believed what they say, they would stop flying their private jets to their meetings all over the world. I have read that these juants cause more pollution in a day or two than all the car exhaust emitted in one year.

P.S. This morning I am a victim of climate change/global warming; it is -4 degrees here in Alexandria this morning.
I am a firm believer in climate change. I do not, ... (show quote)


I agree with your sentiments over all but think there are some things we can do about it. We can learn how to adapt to changes instead of trying to prevent them. So far, the predictions for climate change recently have certainly missed the marks. Food for thought. Every time something changes, there are good and bad effects and must be considered to evaluate the change. Ever notice there are no good changes when climate change is considered only bad. Just sayin....

BTW check out my comments on your post about energy losses when converting energy from one form to another.

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Jan 14, 2024 23:05:17   #
Reuss Griffiths Loc: Ravenna, Ohio
 
dbrugger25 wrote:
I am a retired engineer who, many years ago, worked on technology to maximise fuel efficiency on rocket engines. I am convinced that the greatest solution to lowering carbon emissions is to focus entirely on getting maximum miles per gallon.

If a car gets 20 MPG and emits 1.5% CO, or could achieve 50 MPG and emit 2.5% CO, the 50 MPG car would produce far less total pollution and cost far less to operate. It would also end the need to import petroleum.

If the government would stop micromanaging the vehicle industry and charge the manufacturers with achieving the lowest overall pollution, they could do it. Many of the components on an engine that reduce tailpipe emissions also reduce fuel economy.
I am a retired engineer who, many years ago, worke... (show quote)


Amen to that! Tell me what the goal is and let me figure out the best way to achieve it. Don't limit me to the governments idea of how it must be done"

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Jan 14, 2024 23:19:05   #
Reuss Griffiths Loc: Ravenna, Ohio
 
wmurnahan wrote:
Go back a little over a 100 years and the same was being said of gasoline powered vehicles. It is still early in the development and implementation of electric. Electric offers the advantage of not being tied to only one form of power like gasoline. Electric power can be made using various forms of power, from coal to wind so easier not be under the control of other nations. Like now, the middle east problems threaten our supply of oil, the only source of gasoline. As long as we feed on the oil tit, we are giving money to our enemies and funding our own downfall.
Go back a little over a 100 years and the same was... (show quote)


Not to be political but under the last administration we became energy independent using shale oil, fracking and natural gas. In fact we exported energy so they were paying us instead.

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Jan 14, 2024 23:22:42   #
Dikdik Loc: Winnipeg, Canada
 
...all in the wrong direction. We have to stop/reduce our dependence on fossil fuels.

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Jan 14, 2024 23:29:47   #
Reuss Griffiths Loc: Ravenna, Ohio
 
Dikdik wrote:
Not correct... there is a direct correlation between CO2 content of the atmosphere and earth temperature, and most of the CO2 increase has happened since 1950.


Some historical studies show that the temperature increase first followed by an increase in CO2

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Jan 14, 2024 23:36:38   #
Reuss Griffiths Loc: Ravenna, Ohio
 
Dikdik wrote:
Most diesel locomotives that power trains convert diesel fuel to electricity.

"Diesel Locomotives use electricity to drive forward motion despite the name 'diesel'. A large diesel engine turns a shaft that drives a generator which makes electricity. This electrical energy powers large electric motors at the wheels called 'traction motors'. DC and AC Power: Some locomotives use DC generators and others use AC."

https://edisontechcenter.org/Dieseltrains.html


That's true because that Diesel-electric is a compact arrangement to produce the massive amounts of power to pull 100 car trains. The overall arrangement still produces a very inexpensive way to move large amounts of freight. In smaller vehicle like cars, the hybrid is a better alternative.

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Jan 14, 2024 23:48:15   #
TriX Loc: Raleigh, NC
 
Reuss Griffiths wrote:
Dirtfarmer is absolutely correct that some energy is lost every time one form of energy is converted to another. It's called entropy and is described in the 2nd law of thermodynamics. And contrary to Retina's comment above, it's the reason there are no perpetual motion machines. A simple hypothetical example would be if you drove a vehicle powered by diesel fuel 100 miles, if you converted that amount of diesel fuel into electricity, it would only power a similar sized EV about 80-90 miles. If your overall goal is to limit the amount of CO2 produced, it would make sense to drive the diesel-powered vehicle and produce less CO2. Today, the only power source capable of producing enough energy to meet our projected needs is nuclear. Fat chance of getting that past our environmentalists. We would be far better off using our fossil fuels and finding better technology to limit the amount of CO2 like carbon capture and other promising developments.
Dirtfarmer is absolutely correct that some energy ... (show quote)


Fortunately, new nuclear plants are beginning to be licensed and smaller, cheaper to build modular plants are becoming available. But we need to get the Yucca Mountain Nuclear Repository completely open.

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Jan 15, 2024 00:15:16   #
jaymatt Loc: Alexandria, Indiana
 
Time to unwatch this one.

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Jan 15, 2024 02:20:53   #
bowhunter_1 Loc: North Bend, Oregon
 
Home chargers may cost thousands of dollars if you are willing to pay it. I certainly am not. My 2023 Chevy EUV came equipped with a level1/level2 charger and a $500 voucher to pay for a 240VAC outlet. I installed the 240VAC outlet myself for less than $50 and received a $500 gift card instead of the voucher. Easily charges overnight and gives me a practical range of about 200 miles. Cost of utility power to charge comes out to be about $.025 per mile. Gasoline cost to power my Honda CRV was usually about $.10 per mile. If I need to charge at a level 3 fast charging station, the cast is about $.20 per mile. Home charging is necessary to support most, if not all of the miles driving an EV to make it work out in $$. I pay $.08 /KWH for utility power here in Western Oregon. Fast charging rate here is $.56 /KWH . Twice the cost to fuel my gasoline powered CRV. I just seldom drive my EV beyond the range of a home charger.

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Jan 15, 2024 07:47:28   #
Longshadow Loc: Audubon, PA, United States
 
Dikdik wrote:
I think Sweden was looking at electrifying the roadways.



That would be interesting, especially if there are any utilities running down the street.
Maybe only on major roadways that don't have utilities under the road?

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Jan 15, 2024 07:51:24   #
Longshadow Loc: Audubon, PA, United States
 
jaymatt wrote:
Time to unwatch this one.

Thanks for letting us know.

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Jan 15, 2024 07:52:48   #
jerryc41 Loc: Catskill Mts of NY
 
tommystrat wrote:
Depreciation, limited range, extremely high maintenance costs, lithium production in the hands of unfriendly nations (China) and the complete inadequacy of the existing electrical grid to service a massive influx of EVs will serve to make EVs untenable on a large scale.

And what happens when you are on a road trip and get stranded in the middle of nowhere. Once those batteries run down how in the world are you going to get them recharged when you can't get to a recharging station? Just a few of the reasons that EVs are only being manufactured to pander to the woke in our society, who say that we're going down in a flaming, catastrophic climate crisis, unless we have electric vehicles. Never seeing the forest for the trees.
Depreciation, limited range, extremely high mainte... (show quote)


The scarcity of lithium and its explosive nature are two big drawbacks. A company in Sweden claims to have developed a sodium battery.

https://www.youtube.com/watch?v=47xuDMRwPjM

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Jan 15, 2024 07:53:10   #
BebuLamar
 
Longshadow wrote:
Thanks for letting us know.


I never watch or unwatch any thread.

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Jan 15, 2024 07:58:07   #
Longshadow Loc: Audubon, PA, United States
 
BebuLamar wrote:
I never watch or unwatch any thread.

I watch some, but never announce when I unwatch.
(Like anyone cares???)

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