[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [New Search]
If anyone really wantsŸNW¥ the gory details of metal to air heat transfer, there's any number of electronic design books that cover heat sink design, which also applies to air-cooled engines. The subject in covered in them includes optimum fin designs, surface effects, color and surface finish. It can get pretty deep. I've got one kicking around somewhere,but it hasn't surfaced since I moved. Basically, I assume the VW design engineers did their homework and don't mess with the stock setup. If anyone does, they'd better do their homework on thermodynamics and be prepared to spend lots of bucks bettering the stock setup. > >Neither of these covers the case where heat transfers from one medium >to another (magnesium case to air, or oil to case) across an >interface which can be thought of as having zero thickness. Then >there is the fact that convection plays little role because the air >flow here is forced, not heat driven, as would be in the case of >convection. > >Conduction explains how the heat works its way through the thickness >of the case, but no one has concerned themselves with that here. This >is rightly so, because the bottleneck is the case-to-air interface. > >Jim >- ------------------------------------------------------------------- Too much? Digest! mailto:type3-d-request@vwtype3.org Subj=subscribe