bersaga
05-01-2003, 01:34 PM
Dear All,
I think that we have digressed from the original query which was tubes and have somehow reached to fins.
In-line as opposed to Staggered tubing patterns are one thing. And , staggered and flat fins are something else.
The former is to do with tube sheets - the pattern of holes on the tube sheets define whether the tubes are in-line or staggered. ( In-line is also known as 'squared' due to the outline made by any 4 tube hole s-seen from the side)
The staggered pattern has obvious heat transfer benefits but only a slight advantage over the in-line but this is at the expense of a slight increase in air pressure drop and a higher bypass factor.
Why in-line was used I have no idea!
:rolleyes:
I think that we have digressed from the original query which was tubes and have somehow reached to fins.
In-line as opposed to Staggered tubing patterns are one thing. And , staggered and flat fins are something else.
The former is to do with tube sheets - the pattern of holes on the tube sheets define whether the tubes are in-line or staggered. ( In-line is also known as 'squared' due to the outline made by any 4 tube hole s-seen from the side)
The staggered pattern has obvious heat transfer benefits but only a slight advantage over the in-line but this is at the expense of a slight increase in air pressure drop and a higher bypass factor.
Why in-line was used I have no idea!
:rolleyes: