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On Sun, 7 May 2006 01:42:05 EDT
Lehanover@aol.com wrote:
In a message dated 5/6/2006 10:37:55 P.M. Eastern Daylight Time, lendich@optusnet.com.au writes:
Bill,
There must be there a way of balancing/ equalizing 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)
Unless there is a built in flow path problem, the loss of heat raises the viscosity of the fluid and slows its flow rate, then the resistance goes up and the other cooler flows better for a while, and the outcome is reversed. No other equipment is required.
Lynn E. Hanover
I did some measurements of flow rate with two different viscosity's of
fluids with an EWP. Counter intuitive as it may seem, I found no
difference in flow rate between viscosity's of 1.3 cp and 5.3 cp.
The details are at http://tinyurl.com/4cj4w
(I'm having some technical problems with the rotarywiki.org at the
moment, so if this link doesn't work, try again a little later.)
It's possible that the EWP reacts to the higher viscosity by slowing
down exactly the right amount to keep flow constant, but as I was
totally surprised by the result, I think I would want to see a test
with the engine driven pump before assuming the viscosity change would
help balance the flow.
Bob W.
--
http://www.bob-white.com
N93BD - Rotary Powered BD-4 (first engine start 1/7/06)
Custom Cables for your rotary installation -
http://www.roblinphoto.com/shop/
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