Re: Downside to Methanol


"Dan Bloomquist" <public21@xxxxxxxxxxx> wrote in message
news:CEdyg.6322$oa1.5380@xxxxxxxxxxxxxxxx


AKA Gray Asphalt wrote:


That 37% is about twice the efficiency of an internal combustion engine,
according to that article. Olah's interview said that there had been
great
strides made in the last few years. And since the article refers to tech
that is five years +- old, there is a good positility that progress has
been
made. I was surprised to find that internal combustion was rated at
17%.

You are comparing apples and rotten oranges. There was a rather recent DOD
study that could not come up with anything close to 37% in actual testing.
You are also comparing the optimum peak PEM output with a plain old ICE
vehicle. Efficiency over the power curve of PEM will not be the optimum.
My kid has a jetta tdi that gets 50 mpg without being overly careful with
his driving. So using your 37/17 we should get 110m/kg of hydrogen. Only a
fair comparison can be made with actual testing against a hybrid ICE
vehicle.

Next is to compare cost and see if it can ever become the 'people's car'.

Best, Dan.

--
"We need an energy policy that encourages consumption"
George W. Bush.

"Conservation may be a sign of personal virtue, but it is not a sufficient
basis for a sound, comprehensive energy policy."
Vice President Dick Cheney

This is an MIT article which to me is a lot less suspect than any government
study. Please give a link to the DOD study. Did you look at the article? It
seems pretty straight forward to me.


.

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