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Temperature Difference Heat Exchanger

heat exchanger lmtd temperature difference

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#1 Petridou


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Posted 04 March 2021 - 04:22 AM


I am an undergratuated student and I am designing a heat exchanger. I couldn't be able to find how large can the temperature difference be. For example, can I use only one heat exchanger to heat directly a fluid from 293 Kelvin to 873 Kelvin, or something like that is impossible and so I should use more than one heat exchangers? What is the typical maximum temperature difference that can be achieved ?

Thank you in advance

#2 breizh


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Posted 04 March 2021 - 05:03 AM



Hi ,

let you consider the link above .

BTW you can also explore the subject using your favorite search engine or the one in this forum.


note : Did you ask the question to your instructor ?


remark : Process heat transfer  by Kern is a good reference. 


Hope this is helping you .


Edited by breizh, 04 March 2021 - 06:33 AM.

#3 Petridou


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Posted 05 March 2021 - 04:57 AM

Thank you very much, I found a lot of useful information in the attached files

#4 mhamdi khaled

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Posted 22 October 2021 - 04:00 PM

You have to know that this difference of temperature should have many exchangers. Try to use EDR, it gives the full design and also the required number of exchangers

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