It adds equations for the heat rates Pp1 and Pp2 and the temperatures Tp1 and Tp2 at the connecting ports p1 and p2 of the component, and defines the heat rate Psrc.

Enter a Component name for the nucleate boiling heat rate. The prefix is NBP.

Set the two Node names for the nodes connected by the nucleate boiling heat rate.

The heat rate Psrc is defined as follows:

where A is surface area, and q0 is computed with the Rohsenow’s correlation, that evaluates the heat flux due to nucleate boiling on a surface immersed in a liquid pool. See Nucleate Pool Boiling Correlation for details about the correlation. Set the Area A of the surface of the nucleate boiling heat flux, and select materials from the Fluid and Surface lists. When a predefined material (Water, Benzene, n-Pentane, or Ethanol) is used for the fluid, no additional parameters are required, because the liquid and vapor properties are predefined (at saturation temperature) and the Rohsenow’s correlation parameters Csf and s are available for different surface materials. Else, see Nucleate Boiling Heat Flux (Heat Flux feature) for details about the settings.

Set user defined values or expressions for the Initial temperature at node 1, T1,init, and the Initial temperature at node 2, T2,init.

Select appropriate options in the Add the following to default results in order to include the following global variables (space-independent) in the default plots:

Physics tab with Lumped Thermal System selected: