Reading the documentation for type556, it does not appear that this model can address possible phase-change in a buried (non-insulated) steam pipe. Can this be confirmed or is there an applicable component for this?
I can confirm that Type 556 does not handle the phase change effects. However, you could couple the Type 613 steam pipe (CHP Library) with the Type 711 horizontal buried pipe wrapper (Ground Coupling Library)and then model horizontal buried steam pipes.
Jeff
Jeff Thornton
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