Quote:
Originally posted by Cathar
While I admire the determination, I'm asking myself why not just buy a heater-core?
A good heater-core like the one I use ('87-'94 Toyota Camry Nippon Denso made core) offer around 1.9m^2 of total cooling surface area.
To match that, even in a passive mode, using say 1/2" ID copper, or 5/8" OD copper tubing, would require around 10m (~32') of tubing.
Sticking a small shroud and a silent (as good as) Papst 50CFM 12CM fan on the heater-core would still result in far better cooling, and then your pump doesn't have to fight to push the flow through 10m of tubing that turns multiple bends.
Just curious.
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Because:
1.Although a heatercore has the same or greater cooling surface area, it's not well suited to passive cooling. When air is forced through it, a heater core is far more efficient then just copper piping, but when used passively, most of the surface area is unused, because it's 'inside' the core and in contact mostly with trapped air, heating mostly the fins that are very close to eachother (sorry for this horrible english sentence, but you get the idea). A heatercore gets really good with a shroud and a fan, like you mentioned, and I insist on passive cooling, for which a more spread design is better suited.
2. The radiator that I and Axle built, is designed in such a way, that most of the piping runs parallel. This means the flow resistance is extremely low, as is proven by the fountain of 1.5 mtr that my Eheim 1046 produces, despite having to run through a cpu cooler, a nb cooler, a gpu cooler and two hdd coolers. The design also gets rid of air very easily.
3. This radiator cannot be bought in any shop, which makes it unique and something to show off.
4. Size matters.