A simulated and experimental validation of a tube and shell heat exchanger device, used for heat transfer laboratory, was developed. The validation is carried out by means of computational fluid dynamic applying the turbulence formulation k-ω for shear stress transport, different treatments were carried out in which two types of systems were varied, a parallel flow system and a counterflow system. Among the results obtained are the temperature profiles for all the treatments, the flow lines through the systems, and the results show the comparison of temperature profiles for the techniques used, obtaining average error margins between samples of 4%