alternative power sources
Hi Dennis,
I was actually referring to power conservation and using a 24 volt anchor
windlass instead of a 12 volt anchor windlass as the 24 volt model draws
half the amount of current out of the batteries to do the same job. ".using
24 volt equipment instead of 12 volt will require you to run a generator for
a shorter period of time to top up the batteries and this will save fuel and
put less carbon into the atmosphere. To take this one step further; if you
have 120 or 240 volts available from a generator then you should use it for
the anchor windlass and davit, etc."
Using a higher voltage so that the equipment draws less current allows you
to run smaller sized wires that cost less and weigh less and doesn't strain
the batteries like a 12 volt windlass.
Cheers,
Graham
Captain Graham Pfister
President & Principle Designer
TrawlerCat Marine Designs
Message: 5
Date: Mon, 16 Nov 2009 14:05:46 -0600
From: "Dennis Raedeke" dennis@wildmountain.com
To: "Power Catamaran List" power-catamaran@lists.samurai.com
Subject: [PCW] alternative power sources
Message-ID: 1D4ACEEDA71742338A91D577D024BD02@dennisr
Content-Type: text/plain; charset="us-ascii"
Graham,
Ohms law proves that the higher the voltage the lower the power draw, so
using 24 volt equipment instead of 12 volt will require you to run a
generator for a shorter period of time to top up the batteries and this will
save fuel and put less carbon into the atmosphere
I think you should review ohm's law
P=I X E
Just because the voltage is higher that does not mean it takes less energy
to
produce power.
Dennis Raedeke Wild Wind IV
Graham,
There is no power conservation using 24v compared to 12v. P=I X E If E= 12
and I= 10 P=120 If E=24 and I= 5 P=120. As you can see the power is the
same and the energy to produce it would be the same. The advantage of using
24v is that as you can see the current is 1/2/ as you say the wire size i
reduced and you will have less heat for the same amount of power in
alternators and motors. When you use 24v as the primary voltage you will
need to also have a 12v battery for the items that are not available in 24v.
Fortunately there is an equalizer sold the will draw 12 equally from the 2
batteries that make up the 24v. The suggestion of using the lethal voltage
of 120vacor 240vac for the items you suggest is not to my likening.
Check this out with your good friend Arlid.
Captain Dennis Raedeke
President Muller Boat Company
Hi Dennis,
I was actually referring to power conservation and using a 24 volt anchor
windlass instead of a 12 volt anchor windlass as the 24 volt model draws
half the amount of current out of the batteries to do the same job.
".using
24 volt equipment instead of 12 volt will require you to run a generator
for
a shorter period of time to top up the batteries and this will save fuel
and
put less carbon into the atmosphere. To take this one step further; if
you
have 120 or 240 volts available from a generator then you should use it
for
the anchor windlass and davit, etc."
Using a higher voltage so that the equipment draws less current allows you
to run smaller sized wires that cost less and weigh less and doesn't
strain
the batteries like a 12 volt windlass.
Cheers,
Graham
Captain Graham Pfister
President & Principle Designer
TrawlerCat Marine Designs
Message: 5
Date: Mon, 16 Nov 2009 14:05:46 -0600
From: "Dennis Raedeke" dennis@wildmountain.com
To: "Power Catamaran List" power-catamaran@lists.samurai.com
Subject: [PCW] alternative power sources
Message-ID: 1D4ACEEDA71742338A91D577D024BD02@dennisr
Content-Type: text/plain; charset="us-ascii"
Graham,
Ohms law proves that the higher the voltage the lower the power draw, so
using 24 volt equipment instead of 12 volt will require you to run a
generator for a shorter period of time to top up the batteries and this
will
save fuel and put less carbon into the atmosphere
I think you should review ohm's law
P=I X E
Just because the voltage is higher that does not mean it takes less energy
to
produce power.
Dennis Raedeke Wild Wind IV
Power-Catamaran Mailing List