its purely an assumption...if there is a condensate film already present we have to take film temperature(Tf-Ts)....if there is no film presence then we can go for saturation temperature(Tsat-Ts)...this is the concept....but if you are using a databook you can quote that databook and use that same formula
In my data book for thickness (Tf-Ts) is given where Tf= film temp. Should I use it or yours?
its purely an assumption...if there is a condensate film already present we have to take film temperature(Tf-Ts)....if there is no film presence then we can go for saturation temperature(Tsat-Ts)...this is the concept....but if you are using a databook you can quote that databook and use that same formula
If Tf is 26°c , how to take properties values cos there is no number between 20°c and 40°c given in table data handbook?
Pls do interpolation...you can do it with your calculator itself...else do manually...
Page number to find t saturation at given pressure
KINDLY REFER STEAM TABLE - PRESSURE TABLE
In the problem it is shown as vertical tube, but you have taken formula for vertical surface??
There will not be much difference bw vertical surface and tube..
@@VENKATQ can we also take the formula of vertical tube?
Sir
Iam getting Reynolds is 0.235
Where to find hfg?
It can be taken from Steam table...
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