ECRES 2020 - 8th International Renewable Energy Systems conference is planned to be held in Istanbul on 24-25 August 2020. However, due to the Covid-19 pandemic congress is organized online with the attendance of more than 50 countries. Erman Aslan, Ph.D. attended from Istanbul University, which carries out a joint project within the scope of University-Industry Cooperation on behalf of KARYER. The project on "Numerical Investigation of Heat Transfer and Pressure Drop in Finned Tube Heat Exchangers" was conveyed to the participants through the webinar.