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MP_119506406-Contributor
6-Contributor
October 28, 2024
Question

Assistance Needed with Adjusting Axes for Heat Exchanger Temperature Profiles

  • October 28, 2024
  • 1 reply
  • 555 views

Hello PTC Community,

I'm currently working on a project related to heat exchangers, specifically focusing on an economizer. I've attached some temperature characteristic curves showing the temperature profiles for both co-current and counter-current flow arrangements. However, I'm having difficulty adjusting the axes for both the x-axis (distance) and y-axis (temperature) to improve clarity and presentation.

What I Need:

  1. Guidance on how to adjust the x-axis and y-axis scales appropriately to represent the temperature profiles effectively.
  2. Any tips on ensuring that the axes align properly with the temperature values and flow direction for better visualization.

Your insights and advice would be greatly appreciated!

i have added a mathcad prime file and a screenshot from my book,

 

Thank you in advance for your help!

Best regards,

Michael

1 reply

W
Werner_E25-Diamond I
25-Diamond I
October 28, 2024

Could it be that you confused "deg" (degree, a unit used to measure angles) and "C" (Coulomb, unit of electric charge) with "°C" (degree Celsius, a  temperature unit) ??

Werner_E_0-1730127329755.png

 

Also note the difference between °C  and Delta°C !!

Werner_E_1-1730127683861.png

 

Werner_E_0-1732111744766.png

 

Concerning the the plots - the functions you plot are linear functions, so (unlesss you use log scale) the graph is a straight line and not what you show from the books screenshots.

 

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