Heat Exchanger Design

that answer just isn't sitting on a shelf. If you thermally design it, I take that some info you have is media flows requirements of which you'll have to share. Also the delta p on both especially the shell cover is great due to creating turbulance is usaully determined with an estimation that is confirmed with empirical data.

I have done the thermal design and rating, and I have the geometry defined. See the table below for fluid parameters and construction data.

My problem now is to detail the heat exchanger that is adding channel head, shell cover and other components to the heat exchange. How do I determine the sizes (length) of channel, shell cover and other components? Is there any book that thoroughly addresses mechanical design and detailing of heat exchanger?

Thank you.

Free download the attached files for design calculations and design drawings:

• Heat_Exchanger_Mechanical_Design Calculations

• Heat_Exchanger_Design_Drawings

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Thanks for your reply. I'm new in drafting and detailing shell and tube heat exchanger and would appreciate a more elaborate explanation.

I still have issue, and the issue is:

1) How do I get or estimate the length of components such as channel, shell cover etc? Is there any standard or empirical formula for this?

Look at ASME Section VIII. There's a section in there for shell and tube exchanger design. It should have some equations to calculate what you need.

If I remember right, that section on exchanger design has very complicated iterative equations so you might want some sort of software to solve this for you.

For shell & tube heat exchanger with floating head, and as a practical experience:

● Shell cover ID = Floating head flange OD + 2 X, where X = 0.25" min. & 1" max.

● Length of shell cover shall be determined based on a clear space L between the outside surface of floating head spherical sector and inside surface of dished head of shell cover, where L = 1" min. and 4" max.

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I recommend you having a copy of TEMA standards.

Thank you for the reply. Your reply has given me some understanding. I attached the lay-out of the heat exchanger below. Can you help me with the dimension labeled "A" i.e the channel length. I would be grateful if you can help me with other dimensions too as shown in the diagram below. Can you tell me which part of TEMA to look at for this information. Thank you very much.

Hi There : I need to know How can make a good Thermal design and rating for Shell and Tube and Air Cooled Steam Condenser .... Please I need information for that as soon as possible. thanks in advance ...... ade - u do it before so help me

Thermal design and rating of heat exchanger is better done with HTRI / Aspen HTFS software. If you want to do it by manual calculation, I would recommend the book below:

Process Heat Transfer Principles and Applications 2007 by Robert W. Serth.

The book provides explicit procedure for thermal rating of heat exchangers.

Thank you ade, I will get the book and study it in details ...

ok ade : iam now working on my thesis deals with condensers in power plant technology, shell and tube and air cooled steam condensers, you know i dont have any program for design and rating of condensers so if u can give me any of packeges u mentioned above " HTRI / ASPEN HTFS " to make a validation and confirm my work procedure, if u be honored. thank you for your fast replay and help.