Quote:
Originally posted by bigben2k
You use the term "most efficient velocity" when really there isn't one. There is however a "point of diminishing return". Maybe that's what you mean?
Theoretically, the heat dissipation would increase indefinitely, along with the flow rate. There is a point however, where a very high flow rate doesn't provide much more cooling, than it's slightly slower counterpart.
I don't know about your radiator. From your measurements, it would be comparable to the Lytron 6220 (copper, 4220 in SS), but the Lytron looks like a single pass design, where yours looks more like a 14 pass design.
The 6220 is by far the most restrictive of the Lytron copper rads. If yours is multipass, then you could probably compare the thermal properties, with some adjustment in the numbers.
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I think there is light at the end of the tunnel now.......so you are saying that the same exact principals apply regarding the convection of the heat out of the water into the air even though it is a slower process due to air being a much less effiicient conductor.......I can buy that.......However that still leads me to the question of the time factor...... due to the air being less efficient at removing the heat than water is would it not hold true that the longer a given volume of water resides in the cooling medium (ie radiator, within reason of course) the more heat will be convected out? Hence multipass radiators are inheirently better since it takes longer for that given volume of water to make the trip thru?........
I really dont know if my modine is multipass or not......what I do know is the flat tubes when looked at in cross-section view consist of 14 small channels inside resulting in greater surface contact area.......