Depth of corrugation

Symbol

$\Delta d_{sh}$

Unit

mm

Used in

$A_{shj}$

Cross-sectional area of sheath jacket [mm$^2$]

$D_{sh}$

Diameter over sheath [mm]

$d_{sh}$

Mean diameter of sheath [mm]

$r_{z2,sh}$

Radius of sheath (inner) [m]

$r_{z3,sh}$

Radius of sheath (outer) [m]

$t_1$

Thickness of insulation to sheath [mm]

$t_{1t}$

Thickness of insulation to sheath, transient [mm]

$T_2$

Thermal resistance of armour bedding [K.m/W]

$t_2$

Thickness of bedding under armour [mm]

$T_{ab}$

Thermal resistance of armour bedding [K.m/W]

$T_{dsh}$

Thermal resistance of corrugation filling [K.m/W]

$T_{shj}$

Thermal resistance of sheath jacket [K.m/W]