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What is the meaning of the variable of *ht.DeltaH*?

Posted 2020年8月11日 GMT+2 03:42Heat Transfer & Phase ChangeVersion 5.42 Replies

Tianjiao Bi
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When I studied the application* Concentric tube heat exchanger(Application Library path: Heat_Transfer_Module/Applications/concentric_tube_heat_exchanger, version: 5.4), I found a variable *ht.DeltaHin the expression ofE(effectiveness of heat exchanger), which I couldn't find it in the Help document. What is the meaning of the variableht.DeltaH? Thanks for your help!

2 Replies Last Post 2020年8月21日 GMT+2 08:45
Will Tran
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Posted: 4 years ago 2020年8月21日 GMT+2 06:47

Can you say clearer

Can you say clearer
Magnus Ringh COMSOL Employee

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Posted: 4 years ago 2020年8月21日 GMT+2 08:45

Hi,

If you search forht.DeltaHusing theFindtool (press Crtrl+F), you will see that where it's defined, and moving to that list of variables in anEquation Viewnode (enableEquation Viewin theShow More Optionsdialog box), you can see its definition and that it's thesensible enthalpy, which is related to sensible heat. We will look into if we can make the model documentation more clear about the variables that it uses.

Best regards,

Magnus Ringh, COMSOL

Hi, If you search for `ht.DeltaH` using the **Find** tool (press Crtrl+F), you will see that where it's defined, and moving to that list of variables in an **Equation View** node (enable **Equation View** in the **Show More Options** dialog box), you can see its definition and that it's the *sensible enthalpy*, which is related to sensible heat. We will look into if we can make the model documentation more clear about the variables that it uses. Best regards, Magnus Ringh, COMSOL

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