Agreed (I did mention that the advantage of electric accessories is the ability
to reduce or cut power to the motors as required). This would be a good use of
the excess computing power available in our Healeys ;)
My main point is that it takes the (essentially) the same power to drive the
pump and/or fan, whether it comes from the engine directly or is converted to
electricity by the alternator, and that from a strictly efficiency standpoint
the conversion losses in the alternator and motors are not inconsequential.
Of course, due to the reverse Coriolis Effect down under the power flows INTO
the alternator from the motors, a HUGE advantage.
Bob
----- Original Message -----
From: "Patrick Quinn" <Patrick.Quinn@det.nsw.edu.au>
To: "TERRY COLL" <coll44@msn.com>, bspidell@comcast.net
Cc: "austin healey" <healeys@autox.team.net>
Sent: Thursday, February 5, 2009 3:05:00 PM GMT -08:00 US/Canada Pacific
Subject: RE: [Healeys] electrc fan vs. belt drive
G'day
Of course while we have all been conjugating on the advantage of
mechanical energy over electrical we have perhaps forgotten about what
is the true advantage of using a computerised electric water pump and
electric fan system.
Once the temperature is set by the user it is then maintained through a
more rapid (or slower) flow of coolant by the pump and cooling by the
fan.
Providing the engine/radiator are in good condition the engine reaches
operating temperature more quickly and stays there, no matter the
driving conditions. As the pump continues after the engine is shut down
to the previously set temperature it also eliminates hotspot cavitation.
Hoo Roo
Patrick Quinn
Sydney, Australia
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