Heat Transfer

Overview

This section covers Heat Transfer functions.

Boiling

Tool	Description
QMAX_BOILING	Nucleate boiling critical heat flux (CHF).

Conduction

Tool	Description
CYL_HT	Heat transfer through a cylindrical wall (pipes, vessels).
K_TO_THERMAL_RES	Convert thermal conductivity to thermal resistivity.
THERMAL_RES_TO_K	Convert thermal resistivity to thermal conductivity.

Convection

Tool	Description
NU_CONV_INT	Nusselt number for internal convection in a circular pipe.
NU_CYL_EXT	Nusselt number for crossflow over a single cylinder (Churchill-Bernstein).
NU_DITTUS_BOELTER	Internal convection Nusselt number using Dittus-Boelter.

Hx

Tool	Description
EFF_NTU	Solve heat exchanger using the Effectiveness-NTU method.
LMTD	Log-mean temperature difference.

Insulation

Tool	Description
CP_MATERIAL	Heat capacity of building, insulating, or refractory materials.
K_MATERIAL	Thermal conductivity of building, insulating, or refractory materials.
LIST_MATERIALS	List all valid material IDs for property lookups.
NEAREST_MATERIAL	Find the nearest material ID hit for a search term.
RHO_MATERIAL	Density of building, insulating, or refractory materials.

Radiation

Tool	Description
BLACKBODY_RAD	Spectral radiance of a blackbody.
Q_RAD	Radiant heat flux of a surface.