Energy emitted from the surface of a black body

Input(s)

S: Stephan-Boltzmann Constant (lb/(hr3R4))\left(\mathrm{lb} /\left(\mathrm{hr}^{3} \mathrm{R}^{4}\right)\right)

T: Temperature (R) A: Area (ft2)\left(\mathrm{ft}^{2}\right)

Output(s)

(qb)e\left(\boldsymbol{q}_{\boldsymbol{b}}\right)^{\boldsymbol{e}}: Emitted Heat Flux (Btu/hft2)\left(\mathrm{Btu} / \mathrm{h} \mathrm{ft}^{2}\right)

Formula(s)

(qb)e=ρ( T4)\left(\mathrm{q}_{\mathrm{b}}\right)^{\mathrm{e}}=\rho *\left(\mathrm{~T}^{4}\right)

Reference(s)

Bird, R.B., Stewart, W.E. and Lightfoot, E.N. (2002). Transport Phenomena (Second Ed.). John Wiley & Sons, Chapter: 16, Page: 494.


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