Discussion in 'Performance' started by Voltwagen, Jan 9, 2019.
I guess the noise from that would resemble a kombi ;-)
People are going to believe that .
Just like putting a wind generator on your kombi roof to generate power while driving to run the electric motor.
Personally I think a mr Fusion is the answer
Modern version of a gas generator.
Personally think this has more going for it if you live in a fracking area.
Plenty of gas leaks to catch in your own backyard.
Got this emailed to me - a bit of light entertainment on battery powered cars -
On the economics side.
Seat of pants figures but my punt is a bay will need18- 20kwh at the wheels to travel 100km @100km hr.
Some comparative figures give around 20kwh for small / mid sized EV as a battery to wheel figure.
Or 30kwh batt to wheel on syncro.
Data from mixed first drive over long distance.
So while the motors may be up to 93% efficient under lab conditions that is only peak efficiency.
Just one of many estimates including car mag tests and govt economy stats which are close.
a rough estimate of the total round-trip tank to wheel efficiency is:
0.90 (motor and drivetrain) x 0.95 (inverter) x 0.90 (battery) x 0.95 (charger) = 73%
This number jives quite well with the claims of Tesla, which quotes a 75% round-trip efficiency. Tesla and Leaf owners report slightly lower real-world charging numbers, with the charger and battery portions of the cycle on the order of 80 to 85%. If we use those numbers we get:
0.90 (motor and drivetrain) x 0.95 (inverter) x 0.8 (battery and charger) = 68%
I still consider the motor and inverter numbers peak but let's work on the 70% as a start point.
Current state of the art factory products.
Therefore we multiply the "at wheel" 20Kwh @ 70% and get 28.6 KWh at plug/ meterbox.
At current qld price from grid, normal household supply. 0.26c.KWh.
(Ignoring line charges)
28.6Kwh x $0.26. = $ 7.43 per 100km hwy. @100kmhr.
Common range for bay.
10.7 l/100km best figures.
Current best 91 Octane@ $ 1.21/l
95 Oct. $ 1.33.
12 x 1.21= $14.52.
12 x 1.33= $15.96
Going by Phil's recent numbers T3 seems comparible on good fuel.
My t3 and bay are about same on LPG.
12/ l.100km hwy and mixed .petrol.
15 same conditions LPG.
Best 13/ l.100
Rich./winter. 16 l/100km
Current best $0.81 /litre lpg.
Room.for lpg system improvement.
Tinbits 2.2 suby in split.
7.6 l/100 travelling with kombis. 95-100?
8.5 ish@110 and not gentle.
Jeeze I do shut threads
Alternatives on power supply.
Some quick links, prob not best, to start discussion.
Off peak $0.15 c.kWh.
Have considered the options for a long while and if I do get off my butt to do anything it will be improve aerodynamics of the brick and a mild hybrid.
Turbo off vw or Subaru motor can gain about 2kWh at hwy running.
( a few car manufacturers looking at systems to capture waste energy of exhaust ) this is simplest.
This goes into battery and back to crankshaft via belt driven electric ancillery motor.
Also gives boost on acceleration.
Some control parameters needed.
There are university papers showing energy recovered from turbo and conditions needed.
Similarly improvements to drag .
One involves air jet's at rear boundary layer.
Could be fairly inconspicuous compared to other mods and run from cold side of turbo.
Up to 20% reduction drag.
Combination of both cost effective improvement in overall economy narrowing gap between operating cost of full electric vs petrol /LPG.
Maintain ing driveability in all scenarios.ie includes long distance, energy recovery, improved mileage, use of solar input without committing to initial large establishment costs and structure.
Anyone familiar with turbo's ?
I see an issue with kombi exhaust temps being too low to develop good regerative power.
5hit Col......Australia Day long weekend is for destroying brain cells, not bringing logic to the table.......
...hang on a sec., you’re a Kiwi...............nah, can’t go there.....
Things are much more obvious when pissed
Just Col's way of trying to destroy others brain cells
VW Electric Buggy:
Fingers crossed its not another 7 year cycle of " releases" before we see one ¿
Just imagine if he got out of first gear
It has more than 1 forward gear
I want one!
Despite being a strong critic of the wannabe van , I like this.
Clever move to have body removable from platform as in original beetle.
Has potential in a lot of variants.
Imagine when something goes wrong. Who would repair it?
It’s a new VW
What possibly could go wrong?
One thing - it could be involved with diesel-gate
Just like the VW specialist for Newcastle that never knew that there was a resistor in the rotor button.
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