At 11:18 PM 6/27/2005, Kevin Rock wrote...
>If I have done this correctly you should be able to run a QRP rig key down for
>approximately 14 minutes with a fully charged 5K Farad ultracapacitor.
Discharge curves vary significantly between caps and batteries. Caps discharge
exponentially, and the
On Tue, 28 Jun 2005, Margaret Leber wrote:
wayne burdick wrote:
There are also bacteria that produce hydrogen, when properly "trained."
The problem with that so far has been the feasibility of the nanotech-based
whip and chair. :-)
To say nothing of the nanotreats to reinforce the desired
]>;
"glowbugs" <[EMAIL PROTECTED]>
Sent: Tuesday, June 28, 2005 5:40 AM
Subject: Re: [Elecraft] Battery vs Ultracapacitor
>
Hi Kevin,
One day we may be running our rigs from ultracapacitors instead of
batteries. They recharge extremely rapidly. They store charge fo
Kevin,
The first thing that jumps out at me is that
capacitors voltage drops at what I remember is a log
rate when discharging. A capacitor would still have
something like half the coulombs of electrons left
inside when the voltage would have dropped too low for
the average rig to work correctly.
wayne burdick wrote:
There are also bacteria that produce hydrogen, when properly "trained."
The problem with that so far has been the feasibility of the
nanotech-based whip and chair. :-)
73 de Maggie K3XS -- K2 1641
--
-/___. _)Margaret Stephanie Leber CCP, SCJP/"The art of progre
On Monday 27 June 2005 23:18, Kevin Rock wrote:
> If it burns
> cyanide gas is produced in dangerous quantities.
OT but ..
In 1986 during a software contract, one of the staff
kind of staggered back to his seat saying that he
felt weak and sick.
I told him that he was suffering from mild c
Wayne, N6KR wrote:
Meanwhile (next 5 years), I'll put
my money on miniature fuel cells. They're already available for some
applications, such as mobile of recharging cell phone batteries. There
are fuel-cell-powered bicycles under development, too.
About a year or so ago one
The articles I've been reading put these components in association with
solar cells, regenerative braking, and with various types of fuel cells as
the electricity source. Fuel cells and ultracapacitors play very well
together. The economy of scale is coming from the hybrid automotive
market.
Hi Kevin,
One day we may be running our rigs from ultracapacitors instead of
batteries. They recharge extremely rapidly. They store charge for a
long period of time. And they discharge at rates that put the best
batteries to shame. If you need high amperage devices (think your 100
watt
I've been reading the technical literature lately and have been following
an interesting development: ultracapacitors. These components are on the
order of 5K to 20K Farads. So I did a little calculating.
1F = 1V * 1 Coulomb.
1 Coulomb = 1 Ampere Second
Thus 1F = 1V * 1 Amp Second.
5000 F
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