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How Come Out of the Zillions of Chemicals . . .
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Bret Cahill
science forum Guru


Joined: 05 May 2005
Posts: 480

PostPosted: Thu Jul 13, 2006 6:09 am    Post subject: How Come Out of the Zillions of Chemicals . . . Reply with quote

.. . . there are only a half dozen batteries?

three vapor thermo cycle fluids?

2 chemicals useful for energy storage?

2 thermo fluids?

You'ld expect more variety.


Bret Cahill
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C.J. Kerr
science forum beginner


Joined: 13 Jul 2006
Posts: 1

PostPosted: Thu Jul 13, 2006 9:15 am    Post subject: Re: How Come Out of the Zillions of Chemicals . . . Reply with quote

There are 'zillions' of others, but nobody uses them because they aren't
as good or are too expensive.

Bret Cahill wrote:
Quote:
. . . there are only a half dozen batteries?

three vapor thermo cycle fluids?

2 chemicals useful for energy storage?

2 thermo fluids?

You'ld expect more variety.


Bret Cahill
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John Savage
science forum addict


Joined: 24 Mar 2005
Posts: 63

PostPosted: Sat Jul 15, 2006 6:08 am    Post subject: Re: How Come Out of the Zillions of Chemicals . . . Reply with quote

"C.J. Kerr" <cjk34@cam.ac.uk> writes:
Quote:
There are 'zillions' of others, but nobody uses them because they aren't
as good or are too expensive.

Bret Cahill wrote:
. . . there are only a half dozen batteries?

We're awaiting production of the D-cell sized methanol fuel cell!
That should revolutionise lowpower portable devices.
--
John Savage (my news address is not valid for email)
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Herman Family
science forum Guru Wannabe


Joined: 14 Jun 2005
Posts: 173

PostPosted: Sun Jul 16, 2006 3:58 pm    Post subject: Re: How Come Out of the Zillions of Chemicals . . . Reply with quote

"John Savage" <rookswood@suburbian.com.au> wrote in message
news:060715000015801.15Jul06$rookswood@suburbian.com...
Quote:
"C.J. Kerr" <cjk34@cam.ac.uk> writes:
There are 'zillions' of others, but nobody uses them because they aren't
as good or are too expensive.

Bret Cahill wrote:
. . . there are only a half dozen batteries?

We're awaiting production of the D-cell sized methanol fuel cell!
That should revolutionise lowpower portable devices.
--
John Savage (my news address is not valid for email)

John,

How about the button sized turbine generators that put out 30 watts
each? I think they run on propane or butane.

Michael
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John Savage
science forum addict


Joined: 24 Mar 2005
Posts: 63

PostPosted: Wed Jul 19, 2006 6:37 am    Post subject: Re: How Come Out of the Zillions of Chemicals . . . Reply with quote

"Herman Family" <ecalptsudwaseht.in.reverse@frontiernet.net> writes:
Quote:
We're awaiting production of the D-cell sized methanol fuel cell!
That should revolutionise lowpower portable devices.

How about the button sized turbine generators that put out 30 watts
each? I think they run on propane or butane.

That sounds like a real fun toy. It would be a bit too hot to carry
around in your pocket. Correct me if I'm wrong, but wouldn't you
still need batteries--this time for its electric starter??
--
John Savage (my news address is not valid for email)
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Herman Family
science forum Guru Wannabe


Joined: 14 Jun 2005
Posts: 173

PostPosted: Thu Jul 20, 2006 5:50 am    Post subject: Re: How Come Out of the Zillions of Chemicals . . . Reply with quote

"John Savage" <rookswood@suburbian.com.au> wrote in message
news:060719000122356.19Jul06$rookswood@suburbian.com...
Quote:
"Herman Family" <ecalptsudwaseht.in.reverse@frontiernet.net> writes:
We're awaiting production of the D-cell sized methanol fuel cell!
That should revolutionise lowpower portable devices.

How about the button sized turbine generators that put out 30 watts
each? I think they run on propane or butane.

That sounds like a real fun toy. It would be a bit too hot to carry
around in your pocket. Correct me if I'm wrong, but wouldn't you
still need batteries--this time for its electric starter??
--
John Savage (my news address is not valid for email)

I'm not sure it needs batteries. It is used to charge batteries, but
something that small probably starts running pretty nicely with just the
fuel pressure. Get it ignited and it will zip up to 100,000 rpm and you
have a little electricity. This thing is nanoscale. It isn't like the big
turbines or microturbines.

Of course, you could use something like the lawnmower pull starter in a
pinch :)

Michael
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