The rate of heat transfer through a composite pipe is given by the equation: Cold fluid (air) tot A Hot fluid thf tef 2nL(trf – tef) Q = 1 + In (r2/r¡) , In (r3/r2) + + kA kB hep.73] Where the subscript hf refers to the hot fluid and cf refers to the cold fluid. h is the convective heat transfer coefficient and k is the thermal conductivity. Write the equation in primary dimensions and show that it is homogenous.

Elements Of Electromagnetics
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ISBN:9780190698614
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The rate of heat transfer through a composite pipe is given by the equation:
Cold fluid (air)
tof
(A
Hot
fluid :
tht
2tL(tnf – tef)
Q
In (r2/r¡) , In (r3/r2)
+
1
+
1
[hnf•r1
KA
kB
hef.73]
convective heat transfer coefficient and k is the thermal conductivity. Write the equation
in primary dimensions and show that it is homogenous.
Where the subscript hf refers to the hot fluid and cf refers to the cold fluid. h is the
B.
Transcribed Image Text:The rate of heat transfer through a composite pipe is given by the equation: Cold fluid (air) tof (A Hot fluid : tht 2tL(tnf – tef) Q In (r2/r¡) , In (r3/r2) + 1 + 1 [hnf•r1 KA kB hef.73] convective heat transfer coefficient and k is the thermal conductivity. Write the equation in primary dimensions and show that it is homogenous. Where the subscript hf refers to the hot fluid and cf refers to the cold fluid. h is the B.
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