According to the Forced convection and radiation heat transfer EXP

The diameter of the heater $D=1cm$

The length of the heater $L=11cm$

Shape factor $($View factor$)F=1$

Emissivity $=0\mathrm{.}95$

$Ua=B[\frac{m}{s}]$

$T9=22[c]$

$T10=240[c]$

assume that fixed values for the following air properties

the kinematic viscosity of the air $v={20\mathrm{.}10}^{{?}^{{?}^{?}}}-6[m\frac{2}{s}]$

thermal conductivity or the air $k=0\mathrm{.}03[\frac{w}{m}.k]$

pr $=0\mathrm{.}7$

find :

$1-$ Area of heat transfer $A[m2]$

$2-$Radiation heat transfer coefficient $Hr[\frac{W}{m}2.k]$

$3.$ Convection heat transfer coefficient Hc $[$W$/$m$2.$k$]$

$4-$ Radiation heat transfer Qr $[$W$]$

$5.$ Convection heat transfer $Q_c[W]$