Data Definitions

This section collects and defines all the data needed to build the instance models.

Effective heat transfer coefficient between clad and fuel surface

Refname	DD:htTransCladFuel
Label	Effective heat transfer coefficient between clad and fuel surface
Symbol	${h_{\text{g}}}$
Units	$\frac{\text{W}}{\text{m}^{2}{}^{\circ}\text{C}}$
Equation	${h_{\text{g}}}=\frac{2\,{k_{\text{c}}}\,{h_{\text{p}}}}{2\,{k_{\text{c}}}+{τ_{\text{c}}}\,{h_{\text{p}}}}$
Description	${h_{\text{g}}}$ is the effective heat transfer coefficient between clad and fuel surface ( $\frac{\text{W}}{\text{m}^{2}{}^{\circ}\text{C}}$ ) ${k_{\text{c}}}$ is the clad conductivity (Unitless) ${h_{\text{p}}}$ is the initial gap film conductance (Unitless) ${τ_{\text{c}}}$ is the clad thickness (Unitless)

Refname	DD:htTransCladCool
Label	Convective heat transfer coefficient between clad and coolant
Symbol	${h_{\text{c}}}$
Units	$\frac{\text{W}}{\text{m}^{2}{}^{\circ}\text{C}}$
Equation	${h_{\text{c}}}=\frac{2\,{k_{\text{c}}}\,{h_{\text{b}}}}{2\,{k_{\text{c}}}+{τ_{\text{c}}}\,{h_{\text{b}}}}$
Description	${h_{\text{c}}}$ is the convective heat transfer coefficient between clad and coolant ( $\frac{\text{W}}{\text{m}^{2}{}^{\circ}\text{C}}$ ) ${k_{\text{c}}}$ is the clad conductivity (Unitless) ${h_{\text{b}}}$ is the initial coolant film conductance (Unitless) ${τ_{\text{c}}}$ is the clad thickness (Unitless)