6 replies to this topic

[ChemEng Student]

I need to design a heat exchanger between two streams of brine solution.( cp = 3.1KJ/kgK ) The mass flowrate of each stream is 65 kg/s. Hot stream going from 100 - 70 C and cold from 30 - 60 C. 

 

So Q = 6045kW.

 

I think i am going to design a Fixed tube plate shell and tube heat exchanger. Could somebody please give me a step by step design. including all the calculations and actual numbers used.

 

Thanks.

[thorium90]

The following might be a good read for you. There are also many other threads that can be of help to you.

Attached Files

•  Effectively design shell n tube exchanger.pdf   241.91KB   534 downloads

[Steve Hall]

Good article, thorium.

 

The Heat Exchanger chapter in my book includes a condensed step-by-step algorithm for designing S/T heat exchangers for liquid-liquid service, complete with accompanying spreadsheet that does all of the calculations and prepares a TEMA datasheet.

www.pipesizingsoftware.com/book

Edited by Steve Hall, 11 March 2013 - 08:45 AM.

[Raj Mehta]

A lot of design guidance is available on internet as well as in many books (kern's, RC-6, etc.) for the design of heat exchanger. Just google it and you'll get what you want. 

 

Steve & thorium has shared very good data. 

 

Enjoy. 

[Shivshankar]

Hi,

 

Hope this helps

 

http://nptel.iitm.ac...es/103103027/11

 

Regards

Shivshankar

[ChemEng Student]

Hi

 

can someone please help me find data for the overall heat transfer coefficient (W/m2K) in a shell and tube heat exchanger when hot stream and cold stream is a brine solution.

 

Thanks

[Art Montemayor]

Ian:

 

You are probably a student trying to solve your heat exchanger problem.  You have come to the right Forums, but your topic is a different one from this thread's.  You should start your own thread that specifically addresses your topic.  By posting your query here, you are "skyjacking" the thread.

 

However, your query is an interesting and important one that can easily be addressed by going to Steve Hall's great website (noted above in his hyperlink) and reading about what his very important book for young engineers is all about.  Also, there you can download some of Steve's excellent and profitable workbooks that help you design various pieces of equipment - especially heat exchangers.  Use Steve's workbook on heat exchangers and you will learn a lot about heat exchangers while designing one.