Surface temperature of a heating coil

Input(s)

ToT_{o}: Initial Surface Temperature (K)(\mathrm{K})

μ\mu: Viscosity (Pa s)

ρ\rho: Density (g/m3)\left(\mathrm{g} / \mathrm{m}^{3}\right)

g: Gravitational Acceleration (ft/s2)\left(\mathrm{ft} / \mathrm{s}^{2}\right)

β\beta: Velocity Flux (1/s)

D: Diameter (m)

Q: Net Energy Input Rate (J/s)(\mathrm{J} / \mathrm{s})

k\mathrm{k}: Thermal Conductivity (J/msK)(\mathrm{J} / \mathrm{m} \mathrm{s} \mathrm{K})

Output(s)

T1ToT_{1}-T_{o}: Final Temperature of Surface (K)

Formula(s)

T1To=μ2(ρ2) gβ(D3)(Q(ρ2) gβ(D2)k(μ2))\mathrm{T}_{1}-\mathrm{T}_{\mathrm{o}}=\frac{\mu^{2}}{\left(\rho^{2}\right) * \mathrm{~g} * \beta *\left(\mathrm{D}^{3}\right)} * \varnothing\left(\frac{\mathrm{Q} *\left(\rho^{2}\right) * \mathrm{~g} * \beta *\left(\mathrm{D}^{2}\right)}{\mathrm{k} *\left(\mu^{2}\right)}\right)

Reference(s)

Bird, R.B., Stewart, W.E. and Lightfoot, E.N. (2002). Transport Phenomena (Second Ed.). John Wiley & Sons, Chapter: 11, Page: 361.


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