Unformatted text preview: Pogo
Therefore the flow is laminat. The hydrodynami
and thermal entry length ate ,
26 fotoh - 0. 05 D Red
" f otg h = 0 . 0 5 x 0 01 5 m X 1588
Keft h = 1 . 19 m
X fot t = 0 . 05 D Red PEof
Aft + = 0 . 0 5 X 0 . 015 m X 1 588 x 5. 83
6. 94 m
For the Bache and stephan corelation, To compare
the two fluid on equal basics we use the
combined entry corelation .
with Perf 25, the Hausen corelation could be used
as an approximation
( D / L ) Red PEER
GIZD -
(0 . 015 m
* 158 8 x 5 . 83
6 m
GZD -
23 . 1
Nusselt Number .
tomb / 23.1
3 . 6 6
+ 0 . 0499 X23. 1X
NUD = tah [2- 264 x 23.1 4/3 + 1.7X23.1-2/37
tah ( 2 . 432 x 5. 83 /6 x 23 - 1
- 1 / 6
NUR = 5 03...
View
Full Document
- Fall '19
