Factor to allow for heat loss into adjacent components.

Symbol
$\epsilon_{\mathrm{k}}$
Unit
-
Formulae
$\sqrt{A_{\mathrm{k}} F_{\mathrm{k}} \sqrt{\frac{t_{\mathrm{k}}}{S_{\mathrm{k}}}} + \frac{B_{\mathrm{k}} t_{\mathrm{k}}}{S_{\mathrm{k}}} F_{\mathrm{k}}^{2} + 1}$general formula for conductors and space wire screens
$\sqrt{X_{k} \sqrt{\frac{t_{\mathrm{k}}}{S_{\mathrm{k}}}} + 1 + \frac{Y_{k} t_{\mathrm{k}}}{S_{\mathrm{k}}}}$simplified formula for conductors and spaced wire screens
$- 0.069 M_{\mathrm{k}}^{2} t_{\mathrm{k}} + 0.61 M_{\mathrm{k}} \sqrt{t_{\mathrm{k}}} + 0.0043 \left(M_{\mathrm{k}} + \sqrt{t_{\mathrm{k}}}\right)^{3} + 1$formula for screens, sheath and wires
Related
$A_{\mathrm{k}}$
$B_{\mathrm{k}}$
$M_{\mathrm{k}}$
$S_{\mathrm{k}}$
$t_{\mathrm{k}}$
Used in
$I_{\mathrm{k}}$