In article
<b9361ac7-1476-4bb2-a1ee-5270ece5c618@p25g2000hsf.googlegroups.com>,
virig <virginia.wats@gmail.com> wrote:

> Its cheap and abundant...so what are we waiting for?
> http://carwithwater.googlepages.com/fuel_cell_cars

Practical fuel cell technology?

Hmmm. Imagine the dewpoint in American cities with hundreds of
thousands of pounds of water vapor being poured into the air each day.
And don't forget that water vapor is also a greenhouse gas. Imagine
driving on highways in January in Minneapolis at -30F with cars spewing
water vapor onto the roads, coating them in black ice.

Hydrogen is a no-workable technology on many fronts. "Harmless water
vapor" is a great sound bite but rife with practical problems.

Hi Tim,

How does Minneapolis cope at -30F with the current generation of
gasoline-burning vehicles "spewing water vapor onto the roads"?
After all, gasoline is a HYDROcarbon. On being burned, the hydrogen part is
converted to water, exactly the same as when pure hydrogen is burned or
converted in a fuel cell.

Andy I.



"Tim McNamara" <timmcn@bitstream.net> wrote in message
news:timmcn-05F13A.09201626082008@news.iphouse.com...
: In article
: <b9361ac7-1476-4bb2-a1ee-5270ece5c618@p25g2000hsf.googlegroups.com>,
: virig <virginia.wats@gmail.com> wrote:
:
: > Its cheap and abundant...so what are we waiting for?
: > http://carwithwater.googlepages.com/fuel_cell_cars
:
: Practical fuel cell technology?
:
: Hmmm. Imagine the dewpoint in American cities with hundreds of
: thousands of pounds of water vapor being poured into the air each day.
: And don't forget that water vapor is also a greenhouse gas. Imagine
: driving on highways in January in Minneapolis at -30F with cars spewing
: water vapor onto the roads, coating them in black ice.
:
: Hydrogen is a no-workable technology on many fronts. "Harmless water
: vapor" is a great sound bite but rife with practical problems.

In article <OSWsk.40860$hx.30526@pd7urf3no>,
"Andy" <brackenburn@shaw.-deletethisbit-ca> wrote:

> How does Minneapolis cope at -30F with the current generation of
> gasoline-burning vehicles "spewing water vapor onto the roads"? After
> all, gasoline is a HYDROcarbon. On being burned, the hydrogen part
> is converted to water, exactly the same as when pure hydrogen is
> burned or converted in a fuel cell.

The water vapor in gasoline exhaust is fractionally water vapor, not
wholly water vapor.

True, Tim. The exhaust is only fractionally water vapor, but it's a very
large fraction..............
Gasoline contains more hydrogen than carbon.

Andy I.


"Tim McNamara" <timmcn@bitstream.net> wrote in message
news:timmcn-D8F482.22023926082008@news.iphouse.com...
: In article <OSWsk.40860$hx.30526@pd7urf3no>,
: "Andy" <brackenburn@shaw.-deletethisbit-ca> wrote:
:
: > How does Minneapolis cope at -30F with the current generation of
: > gasoline-burning vehicles "spewing water vapor onto the roads"? After
: > all, gasoline is a HYDROcarbon. On being burned, the hydrogen part
: > is converted to water, exactly the same as when pure hydrogen is
: > burned or converted in a fuel cell.
:
: The water vapor in gasoline exhaust is fractionally water vapor, not
: wholly water vapor.