>>> bi...@scn.org wrote:
>> ///snipped///
[quoted text clipped - 21 lines]
> air compressor unit. A battery stores energy in form of electrical
> power
A battery stores energy as chemical energy. A capacitor stores energy as
electrical energy.
> and a compressor tank stores energy in form of pneumatic power.
Actually it is pneumatic energy. Energy is the ability to do work. Power
is the rate at which work is done or energy is used.
> They are charged by the alternator and the compressor pump,
> respectively.
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> desired air pressure in the bigger tank, will the pump stay on longer,
> or shorter or the same?
It will stay on longer. But it will also stay off longer if pneumatic
equipment is constantly being used. Depending on the use of the
compressed air, a larger tank may sense. If air is used fast enough,
with a small tank, the compressor will be cycling on and off real fast,
but if there is a bigger tank, the motor will cycle on and off as often.
Likewise, if there aren't any air leaks, the compressed air will still
be there the next time you need it.
> Last but not least, the last figure on the model number is CCA (cold
> cranking amps) and the unit of electric current is Ampere or A
> Do not get confused with Ah or Ampere-hour which is the unit of
> electric charge and it's NOT a specification of automotive batteries.
> Your car is different from your cell phone or your digital camera, you
> don't run your car's battery till it's completely discharged.
Actually, people sometimes do.
Jeff