Mailinglist Archive: opensuse (5130 mails)

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Re: [SLE] Warning to Americans!(now going OT)
  • From: James Knott <james.knott@xxxxxxxxxx>
  • Date: Tue, 02 May 2006 19:37:01 -0400
  • Message-id: <4457ED1D.70101@xxxxxxxxxx>
Kevanf1 wrote:
> On 02/05/06, James Knott <james.knott@xxxxxxxxxx> wrote:
>> Kevanf1 wrote:
>> > There are alternatives but one is branded a conspiracy theorist if you
>> > so much as hint at the oil companies perhaps keeping them quiet. There
>> > is no reason why we shouldn't have safe engines running on
>> > water. There is no need to have a tank of highly flammable hydrogen
>> > gas (from the split H20) as it can be split in small quantities and
>> > fed into the engine that way.
>> ????
>> Splitting water into hydrogen and oxygen takes energy. Where does that
>> energy come from? Remember, you can never exceed 100% efficiency and
>> are unlikely to even reach it.
> Solar power. Admittedly, solar panels take energy to make them but I
> don't think they break down fast. So, this would mean that the energy
> put into making them can be regained from the use of the sun over its
> lifetime. The solar energy is then used to split the water. It
> doesn't take much in the way of electrical power to produce the two
> gases after all.

Given the maximum 100% efficiency limit, you'd have to provide as much
solar power as it takes to run the car. Can practical solar panels
produce that much? If so, why not power the wheels directly and
eliminate the losses in the hydrogen production and use? Then again,
the car would be a tad slow at night, unless you had some practical way
to store significant amounts of power.

> Agreed about the 100% efficiency, that's a pipe dream and totally
> unobtainable. However, we can maximise clean energy resources and
> combine them. Solar power being just one which can be converted to
> other uses.
> Personally, I'd love to have some solar voltaic panels put on my roof.
> It is feasible now but the price is prohibitive at the moment. Hopefully
> those prices will fall.

Using solar to supplement a home heating or electrical system is one
thing. Using it as the sole source of power for a car is another.

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