Heat loss by free convection from a horizontal pipe
Input(s)
\(h_{m}\): Heat Transfer Coefficient \((\mathrm{W} / \mathrm{m} \mathrm{K})\)
D: Diameter \((\mathrm{m})\)
L: Length \((m)\)
\(T_{o}\): Final Temperature \((\mathrm{K})\)
\(T_{b}\): Initial Temperature (K)
Output(s)
Q: Heat Loss Rate \((\mathrm{J} / \mathrm{s})\)
Formula(s)
\[
\mathrm{Q}=\mathrm{h}_{\mathrm{m}} * \mathrm{pi} * \mathrm{D} * \mathrm{~L} *\left(\mathrm{~T}_{\mathrm{o}}-\mathrm{T}_{\mathrm{b}}\right)
\]
Reference(s)
Bird, R.B., Stewart, W.E. and Lightfoot, E.N. (2002). Transport Phenomena (Second Ed.). John Wiley & Sons, Chapter: 14, Page: 445.