Why r traiangular/tapered longtudinal fins better than straight fins
Why r traiangular/tapered longtudinal fins better than straight fins
(OP)
Hi All,
Why r triangular/tapered longtudinal fins more efficient than straight fins from a convection heat transfer standpoint? Could any one please let me know. I have done some literature search and all i could find is analyical equations which ay that trainagular/tapered fins are better than straight longitudnal fins. I am trying to understand the physcis would could have lead to that. Please comment.
Thanks
Sridhar
Why r triangular/tapered longtudinal fins more efficient than straight fins from a convection heat transfer standpoint? Could any one please let me know. I have done some literature search and all i could find is analyical equations which ay that trainagular/tapered fins are better than straight longitudnal fins. I am trying to understand the physcis would could have lead to that. Please comment.
Thanks
Sridhar





RE: Why r traiangular/tapered longtudinal fins better than straight fins
Heat "enters" the wide side of the triangle, flows up the ever-narrowing fin towards the cooler tip, right? The amount of cross section "area" of the fin decreases as the amount of energy that crosses each length of the fin decreases. Weight goes down, mass of metal needed goes down. Expense per fin might go up - depends on how you make the fins.
Is the decreased weight and slightly improved performance worth the effort? Depends.
RE: Why r traiangular/tapered longtudinal fins better than straight fins
RE: Why r traiangular/tapered longtudinal fins better than straight fins
je suis charlie
RE: Why r traiangular/tapered longtudinal fins better than straight fins
RE: Why r traiangular/tapered longtudinal fins better than straight fins
The heat conducted through the fin is a function of the cross sectional area. Fat high flux, thin low flux
By using tapered fins you save weight, get better air flow, and be injection molded and still have good heat sinking.