During the six months internship with “Erasmus+for Traineeship program” i had the opportunity to carry out an experimental work in collaboration with the Faculty of Energy and Fuel of AGH University and develop my Master Thesis. The topics was about CFD simulations of an accumulation heat exchanger in a residential biomass heating system and i had the possibility to learn ANSYS Workbench 18.0 software. Working in an international eviroment and living in a foreign city has allowed me to develope excellent adaptation skills and improve my knowledge of English. Moreover i attended a Polish Course achiving level A1.