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The Future Of Excavating Is Here

 
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Old 02-06-2019, 12:10 AM   #1
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The Future Of Excavating Is Here


https://futurism.com/the-byte/electric-excavator-norway
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Old 02-06-2019, 12:36 AM   #2
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Re: The Future Of Excavating Is Here


Operated during the DAY, Zero solar power used to charge batteries in rig. = need for MORE Coal and Nuke power to charge during night shift...

over 20 years ago, mini-hoes ~20 HP where replaced with 3ph 240 Volt electric motor on a flexible cord ~100 ft to demo INSIDE concrete structures... no exhaust fumes.
wired remotes to protect operator.

At the large strip Coal mines, the big front hoes have been high voltage electric for decades....

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Old 02-06-2019, 01:15 AM   #3
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Re: The Future Of Excavating Is Here


Quote:
Originally Posted by Fouthgeneration View Post
Operated during the DAY, Zero solar power used to charge batteries in rig. = need for MORE Coal and Nuke power to charge during night shift...

over 20 years ago, mini-hoes ~20 HP where replaced with 3ph 240 Volt electric motor on a flexible cord ~100 ft to demo INSIDE concrete structures... no exhaust fumes.
wired remotes to protect operator.

At the large strip Coal mines, the big front hoes have been high voltage electric for decades....
But none of those had a 7000 lb battery. That's a lot of lithium
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Old 02-06-2019, 02:50 AM   #4
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Re: The Future Of Excavating Is Here


Are any diesel-electric Submarines using any "new" tech batteries to replace the old school lead/acid batteries?

Another 8 hrs of operation on batteries could win the next big war.

Note the excavator can only run about 5 hrs with NEW batteries, capacity would drop off over their life cycle,

How fire proof are the Li batteries in a high vibration machine, like a Demo hammer,tamper, or Pile driver ?

Liquid hydrocarbons store the same energy in ~25-30 gallons(100 kilos) about 34(about 72X including waste heat) X the energy density, at room temp and pressure.....
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Old 02-06-2019, 10:21 AM   #5
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Re: The Future Of Excavating Is Here


I'm pretty sure locomotives are electric. They have diesel engines to create the electricity.
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Old 02-06-2019, 07:44 PM   #6
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Re: The Future Of Excavating Is Here


that'd be all you need, 100' of water or sewer main left to get in, touch muddy......and batteries die.

maybe a hybrid so you can fall back on diesel to finish something up
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Old 02-06-2019, 08:01 PM   #7
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that'd be all you need, 100' of water or sewer main left to get in, touch muddy......and batteries die.

maybe a hybrid so you can fall back on diesel to finish something up
I always thought hybrid made sense for excavator duty. Even a top dog operator is probably averaging less than 50% of the engine's peak output. Maybe 25%.
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Old 02-06-2019, 08:03 PM   #8
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Re: The Future Of Excavating Is Here


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Are any diesel-electric Submarines using any "new" tech batteries to replace the old school lead/acid batteries?

Another 8 hrs of operation on batteries could win the next big war.
The (not so) new tech is nuclear. But for diesel electric, maybe lead/acid is desirable for the ballast weight.
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Old 02-06-2019, 08:06 PM   #9
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Re: The Future Of Excavating Is Here


Cat has a hybrid dozer, the D7E.
Well not hybrid as in battery + engine, but diesel electric.

https://www.cat.com/en_US/products/n...000000223.html

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ELECTRIC DRIVE
A revolutionary Electric Drive system is designed to deliver quantum leaps in improved productivity and fuel efficiency. The D7E is up to 30 percent more fuel efficient than the D7R2. Better fuel economy plus greater productivity means you can move up to 35 percent more material per gallon/liter of fuel. And the D7E is more productive – moving 10 percent more material per hour. Fewer moving parts, less fuel and fluid and longer service intervals help reduce lifetime owning and operating costs.

ADVANCED ELECTRONICS CONTROL THE POWER
Electric generator, power inverter and propulsion module replace traditional components like a torque converter and transmission. A Cat C9.3 ACERT engine turns a powerful electric generator that efficiently converts mechanical energy into AC electrical current.

ELECTRIC PROPULSION POWERS THE FINAL DRIVES
Current from the generator flows through specially armored cables and military grade connectors to a solid-state power inverter. Advanced electronics send AC current to the propulsion module to control the motors and provides DC current for the accessory systems. The propulsion module, featuring state-of‑the-art AC electric motors, delivers well-modulated torque via axles to the final drives.
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Old 02-06-2019, 09:21 PM   #10
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Re: The Future Of Excavating Is Here


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I always thought hybrid made sense for excavator duty. Even a top dog operator is probably averaging less than 50% of the engine's peak output. Maybe 25%.
Coming out of the hole and starting a swing with full bucket takes a lot of ponies

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Old 02-06-2019, 09:24 PM   #11
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Re: The Future Of Excavating Is Here


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Originally Posted by dayexco View Post
Coming out of the hole and starting a swing with full bucket takes a lot of ponies

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That's perfect for electric, got piles of torque.

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Old 02-06-2019, 09:27 PM   #12
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Re: The Future Of Excavating Is Here


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That's perfect for electric, got piles of torque.

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I'm reading a 5 hour battery life, wtf you do the rest of the day?

A hybrid where they can recoup some of the energy of return swing and going back into hole, kind of makes sense.

Komatsu was playing with that several years ago.

We ain't cooking steaks here

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Old 02-06-2019, 09:32 PM   #13
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Re: The Future Of Excavating Is Here


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Originally Posted by dayexco View Post
Coming out of the hole and starting a swing with full bucket takes a lot of ponies

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Exactly. Hyrbrid can mean more peak HP, but a smaller engine.
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Old 02-07-2019, 10:48 PM   #14
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Re: The Future Of Excavating Is Here


Dayexcon: any extra mass in the boom = lower efficiency..

It is like a "thumb" damn handy when needed, other wise it forces you to a smaller bucket capacity as it weight hangs near the end of the boom. or a Q-T that always adds its dead weight even to excavators that rarely change attachments.

Look for improved sizing of piping for less energy losses in pumping overhead, remote valves that eliminate several feet of pipe and congestion, = cheaper to make, easier to service, and less fuel.

Maybe more stored power in 'Accumulators'?

The upside of for most silly battery powered rigs is they force the engineers to reduce parasitical designs that then can be also removed from Units with a Prime Mover on-board, thus bringing another round of fuel use reductions.

Busy cemeteries? perhaps for Quiet operation

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