Mathematical model of Heat Transfer Coefficient through the annulus gap between concentric concentric pipes filled filled with solid body:
| LaTeX Math Block |
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| anchor | Nu_tiU |
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| alignment | left |
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U = \frac{\lambda}{dr_h{in} \,cdot {\rm Nu}ln (r_{out}/r_{in})} |
where
of flowing fluid| of the solid body |
| LaTeX Math Inline |
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| body | --uriencoded--r_%7Bout%7D |
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| inner radius of outer pipe |
| LaTeX Math Inline |
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| body | --uriencoded--r_%7Bin%7D |
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| outer radius of inner pipe |
For the thin walls
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| --uriencoded--h \ll r_%7Bin%7D |
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the | LaTeX Math Block Reference |
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equation simplifies to:| LaTeX Math Block |
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U = \frac{\lambda}{h} |
where
| \rm Nu | dimensionless Nusselt number (Nu)| --uriencoded--h= r_%7Bout%7D-r_%7Bin%7D |
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| wall thickness |
See also
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Physics / Thermodynamics / Heat Transfer / Heat Transfer Coefficient (HTC) / Heat Transfer Coefficient (HTC) @model
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