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Re: [EVDL] homemade Hummer to have turbine jet engine recharge super capacitor batter

What I like in the article is the statement of facts, because
facts you can check.
I believe it to be true that he increases the mileage of cars
when swapping out the old/inefficient gas engine from a '65
car and throwing in a good Diesel engine.
Diesel engines are known for their torque at low RPM, the
data regading getting 800 hp from a Diesel in an Impala
sounds very far-fetched, unless he is running a Turbocharged
Diesel and even then it sounds ridiculously high for a Diesel,
but not impossible.

Now for his claim to create a series-hybrid Hummer that gets
60 MPG and can do 0-60 in 5 seconds, that simply is impossible
if you are considering the 60 MPG at Freeway speed. Now, if the
Hummer is driven at 25 MPH then it can cruise a long distance
on its electric energy, since it is using so much less from it
at low speed than at high speed. It may be able to use only
200Wh/mi at a constant 25 MPH, so as long as the turbine is
able to generate enough electricity to get about 12kWh from the
capacitors after consuming a gallon of fuel, then it can get
60 MPG.
This in itself is not a particular feat for a Diesel engine,
BTW. Many moons ago VW sold the Lupo which was a "3 liter" car
meaning that it consumed less than 3 liter Diesel per 100 km.
This is about 80 MPG. And that was at Freeway speeds, but with
a light car. No doubt that a Hummer at low speeds can be made
to have a good mileage, the trick is in getting a car to do well
at speeds that people travel at: Freeway speed or higher.
And stop and go traffic.

If they mention "Supercapacitors" then I think about the
"stiffening caps" that Viktor and others use to supplement
their Li-Ion packs, you can of course use them as a (small)
storage for electricity; an EV1 has even raced using Maxwell
caps, so it is possible, though I doubt the efficiency of a
turbine that is frequently keyed on/off, I think you will
lose a lot of power in the start and stop, but I may be
mistaken. The proof of the pudding is in the eating, so
either we will hear again from this fellow or he will be
mistaken this time; or he has used the "marketing twist" of
advertising extreme values that each can be reach individually
but never in combination, like you can have a 200 mile range
on your EV or you can drive it at up to 70 MPH, in the first
case you have to do 20 MPH and in the latter case you get
50 miles of range or so.
2,000 foot-pounds of torque sounds like some serious motors,
unless he is counting on the gear and transfer case to multiply
the torque of the electric motor, so you can smoke the tires
up to 5 MPH ;-)

Cor van de Water
Systems Architect
Proxim Wireless Corporation http://www.proxim.com
Email: [email protected] Private: http://www.cvandewater.com
Skype: cor_van_de_water IM: [email protected]
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-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of Geopilot
Sent: Wednesday, October 31, 2007 10:29 PM
To: Electric Vehicle Discussion List
Subject: [EVDL] homemade Hummer to have turbine jet engine recharge super capacitor batteries, will be able to perform awesome feats of acceleration and power over and over again

from http://www.dailykos.com/storyonly/2007/10/30/14161/066

Goodwin leads me over to a red 2005 H3 Hummer that's up on jacks, its mechanicals removed. He aims to use the turbine to turn the Hummer into a tricked-out electric hybrid. Like most hybrids, it'll have two engines, including an electric motor. But in this case, the second will be the [jet] turbine, Goodwin's secret ingredient. Whenever the truck's juice runs low, the turbine will roar into action for a few seconds, powering a generator with such gusto that it'll recharge a set of "supercapacitor" batteries in seconds. This means the H3's electric motor will be able to perform awesome feats of acceleration and power over and over again, like a Prius on steroids. What's more, the turbine will burn biodiesel, a renewable fuel with much lower emissions than normal diesel; a hydrogen-injection system will then cut those low emissions in half. And when it's time to fill the tank, he'll be able to just pull up to the back of a diner and dump in its excess french-fry grease--a!
s he does with his many other Hummers. Oh, yeah, he adds, the horsepower will double--from 300 to 600.

"Conservatively," Goodwin muses, scratching his chin, "it'll get 60 miles to the gallon. With 2,000 foot-pounds of torque. You'll be able to smoke the tires. And it's going to be superefficient."

He laughs. "Think about it: a 5,000-pound vehicle that gets 60 miles to the gallon and does zero to 60 in five seconds!"

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