CFD Analysis of a Tube-in-tube Heat Exchanger to Pre-heat Olive Pastes

The pre-heating of the paste could reduce the malaxation time and enhance the temperature control during this process. In this study a 3D CFD analysis of a tube-in-tube heat exchanger was carried out to predict its behaviour when the rheology of the olive paste varies. The “What if Analysis” tool of Flow Simulation allowed to perform multiple analyses to analyse the temperature and pressure drop inside the exchanger. Numerical model is confirmed to be a useful tool to identify the main factors affecting the optimization of the heat exchanger.