Cableizer
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Gas temperature

Symbol
$\theta_{gas}$
Unit
°C
Formulas
$T_{gas}-\theta_{abs}$Absolute temperature
$\frac{\theta_c}{2}+\frac{\theta_{encl}}{2}$PAC/GIL compartment
$\frac{h_{conv,c} \pi D_c \theta_c+h_{conv,encl} \pi D_{comp} \theta_{encl}}{h_{conv,encl} \pi D_{comp}-h_{conv,c} \pi D_c}$PAC/GIL compartment
$\frac{\theta_e}{2}+\frac{\theta_{di}}{2}$inside riser
$\frac{\theta_{de}}{2}+\frac{\theta_{air}}{2}$outside riser
Related
$D_c$
Diameter conductor (outer) [m]
$D_{comp}$
Diameter compartment [m]
$h_{conv,c}$
Heat transfer coefficient convection conductor—gas [W/(K.m$^2$)]
$h_{conv,encl}$
Heat transfer coefficient convection gas—enclosure [W/m2.K]
$\pi$
Archimedes' constant $\pi$
$T_{gas}$
Absolute gas temperature [K]
$\theta_{abs}$
Absolute temperature [K]
$\theta_{air}$
Ambient air temperature [°C]
$\theta_c$
Temperature conductor [°C]
$\theta_{de}$
Temperature duct outer surface [°C]
$\theta_{di}$
Temperature duct inner surface [°C]
$\theta_e$
External temperature object [°C]
$\theta_{encl}$
Temperature enclosure [°C]
Used in
$\alpha_{gas}$
Thermal diffusivity gas [m$^2$/s]
$\beta_{gas}$
Volumetric thermal expansion coefficient gas [1/K]
$c_{p,gas}$
Specific heat capacity gas, constant pressure [J/(kg.K)]
$\eta_{gas}$
Dynamic viscosity gas [Pa.s]
$\mathrm{Gr}_{og}$
Grashof number cable—gas
$k_{air}$
Thermal conductivity air [W/(m.K)]
$k_{gas}$
Thermal conductivity gas [W/(m.K)]
$\nu_{gas}$
Kinematic viscosity gas [m$^2$/s]
$\mathrm{Pr}_{gas}$
Prandtl number gas
$\rho_{gas}$
Density gas [kg/m$^3$]
$T_{gas}$
Absolute gas temperature [K]
$\theta_{film}$
Film temperature [°C]
$W_{conv,ce}$
Convective heat transfer conductor→enclosure [W/m]
$W_{conv,gd}$
Convective heat transfer gas—duct [W/m]
$W_{conv,og}$
Convective heat transfer cable→gas [W/m]