1 reply to this topic

[freeman]

Hi
I wish to design a double pipe (heat jacketed) heat exchanger by using HTRI.

Input and output temperatures of annulus and pipe are known.
Tube side flow rate is known too.
The pressure of tube is around 150 bar and the pressure of annulus fluid is 10 bar and both in the liquid phase.

Three design parameter (Jacket diameter, Pipe diameter and pipe length were set).When I tried to design a jacketed pipe heat exchanger (as above specification) the result were shown as steps. I surprised when I saw that the overdesign factor was around 70-100% with the minus sign.

Please tell me what it means.

If anyone has as a tutorial on Jacketed pipe heat exchangers, It's be good for me.

Thanks.

[Padmakar Katre]

Hi,
The answer is within your post, i.e. three parameters mentioned above, Jacket pipe diam, inner pipe diam and length. Addition to these parameters vary number of units in parallel if pressure drop is a limitation. I hope now you can design the exchanger.