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Theory

Schematic overview

The fluid and bed phase are discretised in N and M nodes respectively. All bed material within the same fluid node is assumed to have the same temperature distribution.

Governing equations

OpenTerrace solves partial differential equations for both phases.

ϵfρfcp,fTt=ρfcp,fuTx+x(kfTx)+S
ϵbρbcp,bTt=x(kbTx)+S

The source term S contains effects such as coupling between the phases or heat loss to surroundings.