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Re: [Phys-l] zero emission car



Fuel cell cars will be a good idea when we find a way to make hydrogen more efficiently. Currently we get nearly all of our hydrogen from natural gas at a 40% energy loss. Energy wise it makes more sense to burn the natural gas in a combustion engine than turn it into hydrogen for a fuel cell car.

An interesting spreadsheet that you can download from Argone National lab allows you to calculate well to wheels energy for several alternative car engines (ethanol, fuel cells, etc.): http://greet.es.anl.gov/

A discussion of this can be found in my book: Foundations of Environmental Physics: Understanding Energy Use and Human Impacts, K. Forinash on Amazon: http://www.amazon.com/Foundations-Environmental-Physics-Understanding-Impacts/dp/1597267090/ref=sr_1_3?ie=UTF8&qid=1310647862&sr=8-3

kyle

On 7/13/11 12:00 PM, phys-l-request@carnot.physics.buffalo.edu wrote:
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Today's Topics:

1. zero emission car (Anthony Lapinski)
2. Re: zero emission car (Bill)
3. Re: zero emission car (Bernard Cleyet)
4. Re: zero emission car (brian whatcott)


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Message: 1
Date: Tue, 12 Jul 2011 21:39:01 -0400
From: "Anthony Lapinski"<Anthony_Lapinski@pds.org>
Subject: [Phys-l] zero emission car
To: tap-l@lists.ncsu.edu, phys-l@carnot.physics.buffalo.edu,
njaapt@mail.aapt.org
Message-ID:<fc.000f547402a47566000f547402a47566.2a4757e@pds.org>
Content-Type: text/plain; charset=ISO-8859-1

Click "START THE TOUR" to watch the short video.

http://automobiles.honda.com/fcx-clarity/

Neat! I believe it is only available in southern California. If it ever
goes national, it will be interesting to see how the fueling stations will
work (locations, cost, etc.).



------------------------------

Message: 2
Date: Tue, 12 Jul 2011 22:27:59 -0400
From: Bill<wreitz@neo.rr.com>
Subject: Re: [Phys-l] zero emission car
To: Forum for Physics Educators<phys-l@carnot.physics.buffalo.edu>
Message-ID:<4E1D02AF.3080601@neo.rr.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Anthony,

We ran into one of these 3 years ago (almost literally) at the National
Hydrogen Convention in Columbia, SC. My students were driving their
fuel cell powered Power Wheels Jeep (RC controlled with on-board camera)
around the exhibits and came near one of the two Clarity vehicles there.
The "Suits" from Honda were quite nervous about our proximity to their
prototypes. The Clarity is a beautiful car& I'd love to have one. But
as you note, it will take a lot of infrastructure to make it practical.
There were a couple of Chevy SUV's and Mercedes fuel cell vehicles there
as well. Lucky people got to drive the Chevy's& ride the fuel cell bus.
I believe they were all fueled with high pressure hydrogen in on-board
tanks. My students were there as a result of their winning a fuel cell
powered robot contest. Both our robot and the Clarity used PEM (proton
exchange membrane) fuel cells that differed greatly in sophistication
and efficiency. At that time I wondered if FC technology would develop
sufficiently to actually see the Clarity get to mass field trials,
which, by Anthony's note, seems to be happening. I thought FC's would go
away when the Dept of Energy abandoned them.

( an aside: my high school had a fuel cell technology class for 4 years
as a part of the PLTW engineering program I taught but it has been
replaced by a required digital electronics course. My Engineering Design
and Development class built the FC powered robot and FC Power Wheels as
their senior project. They were in the first FC class and built their
own fuel cells for the project)

Bill Reitz,
retired


On 7/12/2011 9:39 PM, Anthony Lapinski wrote:
Click "START THE TOUR" to watch the short video.

http://automobiles.honda.com/fcx-clarity/

Neat! I believe it is only available in southern California. If it ever
goes national, it will be interesting to see how the fueling stations will
work (locations, cost, etc.).

_______________________________________________
Forum for Physics Educators
Phys-l@carnot.physics.buffalo.edu
https://carnot.physics.buffalo.edu/mailman/listinfo/phys-l





------------------------------

Message: 3
Date: Tue, 12 Jul 2011 20:33:08 -0700
From: Bernard Cleyet<bernardcleyet@redshift.com>
Subject: Re: [Phys-l] zero emission car
To: Forum for Physics Educators<phys-l@carnot.physics.buffalo.edu>
Message-ID:<4C6383F4-110E-4FF3-BA05-E43E5CA7DBA2@redshift.com>
Content-Type: text/plain; charset=us-ascii


On 2011, Jul 12, , at 18:39, Anthony Lapinski wrote:

Click "START THE TOUR" to watch the short video.

http://automobiles.honda.com/fcx-clarity/

Neat! I believe it is only available in southern California. If it ever
goes national, it will be interesting to see how the fueling stations will
work (locations, cost, etc.).


bc would not be surprised by the "real", as opposed to the advertised, carbon footprint being greater than for the new Prius.

------------------------------

Message: 4
Date: Wed, 13 Jul 2011 06:22:05 -0500
From: brian whatcott<betwys1@sbcglobal.net>
Subject: Re: [Phys-l] zero emission car
To: Forum for Physics Educators<phys-l@carnot.physics.buffalo.edu>
Cc: tap-l@lists.ncsu.edu, Anthony Lapinski<Anthony_Lapinski@pds.org>,
njaapt@mail.aapt.org
Message-ID:<4E1D7FDD.30700@sbcglobal.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

On 7/12/2011 8:39 PM, Anthony Lapinski wrote:
Click "START THE TOUR" to watch the short video.

http://automobiles.honda.com/fcx-clarity/

Neat! I believe it is only available in southern California. If it ever
goes national, it will be interesting to see how the fueling stations will
work (locations, cost, etc.).

I recall a fragment from a note on autonomous vehicles (current Wired?)
concerning the immensely popular USB gadget offering depth camera from
Microsoft (way to turn around a decidedly frosty image among hackers!) -
anyway, when a model vehicle was traversing the stands of a recent green
vehicles show - the folk on the Honda stand got decidedly nervous when
the rover prowled round their vehicle - talk about H2 anxiety!

Brian W


------------------------------

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End of Phys-l Digest, Vol 78, Issue 11
**************************************

--
------------------------------------------
Scientists are like 'mariners who have to
rebuild their ship on the high seas, without
ever being able to strip it down in dock and
construct it afresh from the best available
components' Otto Neurath

kyle forinash 812-941-2390
kforinas@ius.edu
http://Physics.ius.edu/
-----------------------------------------