The main goal of this work was to contribute in modeling horizontal twophase
flow boiling channels (evaporators) for parabolic-trough solar thermal
power plants. The evaporator model is essential for the design of control
schemes. Computational fluid dynamics were applied in order to model and
discretize the evaporator.
Finite volume and moving boundary models were explored in this work.
However, some issues in the dynamic simulation of finite volume models, i.e.
chattering, did not allow for taking full advantage of dynamic simulations.
Furthermore, none of the current moving boundary models considered dynamic
switching between all possible flow configurations in evaporators for
parabolic-trough solar thermal power plants.