WHY ALUMINUM RADIATORS ?
Tubes are the primary source of cooling. A radiators cooling capacity is governed by a number of factors. Most important are the tubes, the primary source of cooling. Heat dissipates from the coolant (water and antifreeze) through the tube wall (primary), then through the fins (secondary). Air passing through the fins carries away heat, thereby allowing tubes and fins to absorb more heat from the coolant. In serpentine fin (VT) construction, the flat side of the oval tube is in direct contact with the fin, providing secondary cooling. The rounded ends of the tube are not in direct contact with the fin and therefore do not provide secondary cooling. On the other hand, the rounded ends of the tube provide strength to the tube keeping internal pressure from pushing the tube into a round shape (ballooning). In the beginning, there was the copper brass radiator. Copper brass construction seemed the obvious choice for the first radiators because of superior heat conductivity, ease of forming
