So, I'm almost ashamed of myself, but I'm gonna start an EV truck thread ;)

Emlyn

engtaz wrote: »

Rivian has 100% recall going right now.

That’s the right way to handle things. The last Chrysler product I bought had three recalls in the first couple years for things that may or may not have been bolted together properly including the brakes. It happens with all the major manufacturers but on a much bigger scale. Tesla is proof that it takes years for a company to get build quality up to an excellent level even when their technology is good and they have billions in investment.

I see a big chunk of Rivian’s business will be making commercial delivery vans for Amazon. Their manufacturing plant in Illinois, former Mitsubishi plant, looks state of the art now.

Gardenstater

I doubt that EV tractor trailers are going to be very practical, but even if they are what about the huge fleet of existing vehicles on the road? On board hydrogen generation partial fueled diesel systems and partial fueled systems with stored hydrogen are going to be more effective at reducing pollutants in the real world.

https://interestingengineering.com/innovation/retrofit-diesel-engines-hydrogen-fuel?utm_source=Facebook&utm_medium=content&utm_campaign=organic&utm_content=Oct10&fbclid=IwAR0cb2t3tbzUP5pG4l0YNIwNb3n6Z_zU4F0dGmLbBLitMRBYnorvSfnS-mY

SIHAB

Poor Californians

tonyb

I dunno about Tesla and build quality. They still aren't there yet in relation to the price of their cars.

The only people on the planet worried about pollution are America and Europe. The Asian countries are not, and they are the biggest polluters. Russia ? South America ? Africa ? So even if Europe and the USA were completely zero on emissions, it wouldn't make a dent globally speaking.

rebelsoul

https://youtu.be/Qy2Qz8aRxAI

Waiting for delivery today.

rebelsoul

It's for my wife , her 2006 hummer with off road package and 33 inch mudders just reached 230,000 miles .

sucks2beme

rebelsoul wrote: »

It's for my wife , her 2006 hummer with off road package and 33 inch mudders just reached 230,000 miles .

I guess you'll be ready for all those urban combat situations?

mrbigbluelight

rebelsoul wrote: »

It's for my wife , her 2006 hummer with off road package and 33 inch mudders just reached 230,000 miles .

That's nice that you gave your wife a Hummer.

.........nope, not me.......😇

Toolfan66

9000lbs?? That’s ridiculous…

F1nut

Those batteries are heavy...

nooshinjohn

The goal of any cause-de-celeb is to get something for nothing. So long as you are able to remain blind and ignorant of the horrific damage to both the environment and the people you are so vested in trying to protect, it does not matter. You get to Pat each other on the back while waiting for you private jet to get topped up with jet fuel and caviar and tell yourselves how much you care.

In the case of electric vehicles... look no gas! This completely flys in the face of any logic whatsoever, especially when it comes to trucks.

skrol

I just saw a video today about the Ford Lightning EV towing and the range reduction. While the Lightning was able to easily pull the 1500lb empty aluminum trailer, the towing range dropped by 1/2. With a load on the trailer (total ~3300lbs) the range dropped to 1/3. Is this typical?

https://youtu.be/3nS0Fdayj8Y

F1nut

Yes

audioluvr

rebelsoul wrote: »

It's for my wife , her 2006 hummer with off road package and 33 inch mudders just reached 230,000 miles .

Your wife must be a smoking hot stone fox! Keep them happy or loose the house...

Tony M

Emlyn

skrol wrote: »

I just saw a video today about the Ford Lightning EV towing and the range reduction. While the Lightning was able to easily pull the 1500lb empty aluminum trailer, the towing range dropped by 1/2. With a load on the trailer (total ~3300lbs) the range dropped to 1/3. Is this typical?

Not really a disaster (typical clickbait Youtuber) because the truck got him there and back again and he didn't spring for the long range battery version. Based on what he was saying it tows very well and drives very well. One problem though is the truck doesn't predict an accurate range with a load until it's been running. Buyers of these things need to manage expectations to what the truck is capable of and use if appropriately once they figure out what it can do. If it wouldn't do the job he needed doing he should have used another tool.

If there was a charger where he picked up the car he could have been charging it up for an hour or so while I loading the car to get more range. Batteries charge quickly to get up to 80 percent.

A lot of trucks would see around 10 mpg towing a load. That would definitely be a better tool for towing loads long distances. Electric trucks seem to be ok for a short run. Hydrogen may be a much better option for trucks.

tonyb

An hour to load that car ?? How about 10 minutes tops. Your also assuming a fast charger would be available, and have an open space so the driver doesn't have to wait. Not all charging stations have those better fast chargers.

Their is another tool available....a gas or diesel powered truck.

Which is the whole point....right tool for the right job....isn't that the usual saying? You can't limit the tools available and expect the same outcomes. While these types of vehicles might be ok for around town, small towing, they are still limited in their ability and usefullness.

sucks2beme

Until there's a solid break through technical advance, not going to cut it
for a lot of truck users. The average guy in landscaping isn't going to go
Ev or battery yard tools. They run long days in summer. No time to wait for
Stuff to recharge. We will see if the new ev postal fleet is practical or a
very expensive boondoggle. They mostly leave the 1st bunch of ev trucks
in the usps parking lot. Let's see what happens when the choice of gas
Goes away.

mhardy6647

Gardenstater wrote: »

I doubt that EV tractor trailers are going to be very practical, but even if they are what about the huge fleet of existing vehicles on the road? On board hydrogen generation partial fueled diesel systems and partial fueled systems with stored hydrogen are going to be more effective at reducing pollutants in the real world.

https://interestingengineering.com/innovation/retrofit-diesel-engines-hydrogen-fuel?utm_source=Facebook&utm_medium=content&utm_campaign=organic&utm_content=Oct10&fbclid=IwAR0cb2t3tbzUP5pG4l0YNIwNb3n6Z_zU4F0dGmLbBLitMRBYnorvSfnS-mY

Hydrogen trucks...

Gardenstater

Probably not a terrific idea to store it in an inflatable towed behind the truck

The first system I mentioned, is the HyTech Power ICA system, which uses a high efficiency electrolyzer (nearly 98% efficient), to generate the hydrogen as needed and gets a 27% fuel economy improvement as tested by FedEx and an independent 3rd party lab in Sweden. Pretty huge improvements in pollutants emitted as well. 20 patents on the system and will sell for around $10k and the average tractor trailer operator will be able to achieve payback in 9 mos.. Emissions improvements on Cummins KTA-38 tested by Eurofins: O2 +15.0% by vol., CO2 -50.0% by vol., CO -25.8% by mg/Nm^3, NOx -19.0% by mg/Nm^3, PM -78.0% by mg/Nm^3.

mhardy6647

Hydrogen is indeed much more attractive, from my perspective, if it can be generated on the fly.
Takes quite a bit of energy to electrolyze water, though -- that's baked into the thermodynamics; nothin' that can be done about that.

Gardenstater

Check out Hysat Electrolyzer. The technology has now reached 98% efficiency. The ICA system has been tested and proven to produce a 27% bsfc improvement.

mrbigbluelight

You know, I just thought of something: the petroleum that is pumped from the ground and used to make plastics, etc may have further use.
If refined further it might be able to create a combustible fluid which, with proper engineering,
could be used in making a means of propulsion for the average citizen.
Readily available, inexpensive, and efficent.

Whaddya think? Is this just crazy talk or what ?🤔

nooshinjohn

mrbigbluelight wrote: »

You know, I just thought of something: the petroleum that is pumped from the ground and used to make plastics, etc may have further use.
If refined further it might be able to create a combustible fluid which, with proper engineering,
could be used in making a means of propulsion for the average citizen.
Readily available, inexpensive, and efficent.

Whaddya think? Is this just crazy talk or what ?🤔

You are certifiably insane...

mhardy6647

Gardenstater wrote: »

Check out Hysat Electrolyzer. The technology has now reached 98% efficiency. The ICA system has been tested and proven to produce a 27% bsfc improvement.

98% efficiency in terms of what? It looks like it is the hydrogen producing efficiency of the sell with respect to water. I am not sure how that compares to the amount of energy in per energy-equivalent (e.g., mol of H-H bonds) out. Would need to look at the peer reviewed literature, which I don't have bandwidth to do this week.

https://www.inceptivemind.com/hysatas-record-breaking-electrolyzer-claims-energy-efficiency/23711/

Gardenstater

Efficiency = Energy out/Energy in. They are saying that 100kWh of electricity has produced 98kWh of Hydrogen in the new design of electrolyzer that Hysata came up with. I believe they are rating it at 95% efficiency nominally. It is a capillary wicking electrolyte and there are no bubbles that get in the way of electron flow at the surface of the Oxygen and Hydrogen electrode plates.

"Hysata’s overall electrolyser system has been designed for ease of manufacturing, scaling and installation, delivering 95 percent overall system efficiency, equivalent to 41.5 kWh/kg, compared to 75 percent or less for existing electrolyser technologies. For hydrogen producers, this will significantly reduce both the capital and operational costs to produce green hydrogen."

Edit to add - I checked the math and it comes out to 95% efficiency based upon the higher heating value of H2.

1kg of H2 = 141.88 MJ = 39.41kWh. 39.41/41.5 = 94.9%

pitdogg2

mrbigbluelight wrote: »

You know, I just thought of something: the petroleum that is pumped from the ground and used to make plastics, etc may have further use.
If refined further it might be able to create a combustible fluid which, with proper engineering,
could be used in making a means of propulsion for the average citizen.
Readily available, inexpensive, and efficent.

In the beginning Rockerfeller's Standard Oil was cracking oil to get Kerosene. The Gasoline "byproduct" was considered to volatile and dangerous so JD pumped it into the rivers to dispose of it. OOOOOH the good ol'days.

Gardenstater

Whatever we do we darn well take into account national security going forward, and not do something stupid that is just going to make China stronger. My 2c.

mhardy6647

Gardenstater wrote: »

Efficiency = Energy out/Energy in. They are saying that 100kWh of electricity has produced 98kWh of Hydrogen in the new design of electrolyzer that Hysata came up with. I believe they are rating it at 95% efficiency nominally. It is a capillary wicking electrolyte and there are no bubbles that get in the way of electron flow at the surface of the Oxygen and Hydrogen electrode plates.

"Hysata’s overall electrolyser system has been designed for ease of manufacturing, scaling and installation, delivering 95 percent overall system efficiency, equivalent to 41.5 kWh/kg, compared to 75 percent or less for existing electrolyser technologies. For hydrogen producers, this will significantly reduce both the capital and operational costs to produce green hydrogen."

Edit to add - I checked the math and it comes out to 95% efficiency based upon the higher heating value of H2.

1kg of H2 = 141.88 MJ = 39.41kWh. 39.41/41.5 = 94.9%

I know something was bothering me... the starting material is water not hydrogen. Do they mean 1 kg of H2-equivalent (which would be, umm, 18 kg of water)?

Gardenstater

There is no energy in water until you expend energy to split it, so the water into the system, although it is not without cost, does not enter into the energy in part of the equation, only the electricity.

They are saying it takes 41.5 KWh of electricity to create 1 kg of hydrogen and previous systems would only have been able to create 75/95 = 0.79 kg of hydrogen with that same amount of electricity.