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I agree that flow can be balanced, however you would have to be able to measure the flow in order to do that, and most installations do not have that capability. Just assuming that they are balanced is frought with the peril that they might not be due to irregularities that are not obvious.
Bill
-------------- Original message --------------
From: "george lendich" <lendich@optusnet.com.au>
Bill,
There must be there a way of balancing/ equalising the pressures and flow through
parallel radiators with the use of regulators or some such auto or pre-set resistors or balance tubes etc.
George (down under)
----- Original Message -----
Sent: Sunday, May 07, 2006 9:49 AM
Subject: [FlyRotary] Re: oil cooler lines
Maybe -- maybe not. The hydraulic resistance for the two flow paths may be different, then the flows will not be the same.
I have mine plumbed parallel, and took pains to make all hose connections equal length. We will see when I get it started whether it works as planned.
Bill Schertz
-------------- Original message --------------
From: Bulent Aliev <atlasyts@bellsouth.net>
> Bill, I would think they will even out by equalizing the back
> pressure from the cooler?
> Buly
> On May 6, 2006, at 9:24 AM, wschertz@comcast.net wrote:
>
> > Buly,
> > You are correct that parallel coolers will be more efficient, IF
> > the liquid flow through the coolers are the same.
> > Bill Schertz
> >
> > -------------- Original message --------------
> > From: Bulent Aliev
> >
> > > I believe parallel coolers will be more efficient due to the higher
> > > delta T. In a serial set up, the liquid in the second cooler will be
> > > lower temp. and less efficient heat transfer will take place.
> > Jus
t an
> > > opinion of an eyeball engineer?
> > > Buly
> > > On May 5, 2006, at 11:34 PM, Kelly Troyer wrote:
> > >
> > > > Bob,
> > > > One other comment........There is some difference of opinion
> > > > among the group
> > > > whether connecting coolers (oil or coolent) in series (as you
> > > > propose) or in
> > > > parallel is the most efficient method.........We have group
> > members
> > > > currently
> > > > flying with both methods........Most that I am aware of that use
> > > > both methods
> > &g t; > are for coolent systems as not many are using two oil
> > > > coolers........I personally
> > > > lean toward a parallel coolent system........Any comments from
> > > > others in the
> > > >
group about this question would be welcome as I know we have
> > > > several with
> > > > experience or training in this area !! What would be most
> > efficient
> > > > for one
> > > > system should probably apply to the other.......IMHO
> > > > --
> > > > Kelly Troyer
> > > > Dyke Delta/13B/RD1C/EC2
> > > >
> > > >
> > > >
> > > >
> > > > -------------- Original message from kenpowell@comcast.net:
> > > > --------------
> > > >
> > > > Bob,
> > > > I think you should have made the lines larger to help lower
> > presure
> > > > drop in the long lines. I understand that the extra oil in the
> > > > lines will be heavy but the pressure drop would be a tradeoff that
> >
& gt; > I wouldn't want to make.
> > > >
> > > > Ken Powell
> > > > Bryant, Arkansas
> > > > 501-847-4721
> > > > C150 / RV-4 under construction
> > > >
> > > > -------------- Original message --------------
> > > > From: BMears9413@aol.com
> > > > I'm running two oil coolers in the Spitfire. Due to the lengthe of
> > > > the lines and volume of the two coolers I reduced my oil lines to
> > > > AN8 (I think stock they were 10?) Now, before I close
> > everything up
> > > > I'm having second guessing. My total line length will be around
> > > > 12'. I had planned on running the lines to one oil cooler, then
> > the
> > > > other, then back to the motor.
> > > > Any comments?
> > > >
> > > >
; Bob Mears
> > >
> > > Buly
> > > http://tinyurl.com/dcy36
> > >
> > >
> > >
> > >
> > > --
> > > Homepage: http://www.flyrotary.com/
> > > Archive and UnSub: http://ma il.lancaironline.net/lists/flyrotary/
>
> Buly
> http://tinyurl.com/dcy36
>
>
>
>
> --
> Homepage: http://www.flyrotary.com/
> Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/
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