Thesis Defense - Tolga Arda Eraslan (MSME)

Tolga Arda Eraslan – M.Sc. Mechanical Engineering

Prof. Dr. Mustafa Pınar Mengüç – Advisor

Asst. Prof. Altuğ Melik Başol – Co-Advisor

Date: 08.08.2023

Time: 14.00

Location: AB1 225

“A NUMERICAL INVESTIGATION OF THERMAL COMFORT WITH DIFFERENT

AIR DIFFUSERS AT ENCLOSED OFFICE SPACE”

Prof. Dr. Mustafa Pınar Mengüç, Özyeğin University

Assoc. Prof. Dr. Özgür Ertunç, Özyeğin University

Prof. Dr. Hakan Ertürk, Boğaziçi University

Abstract:

People spend about 90\% % of their time in indoor environments, highlighting the significance of heating, ventilation, and air conditioning (HVAC) systems in these spaces. While ensuring the comfort of occupants in indoor spaces, it is also essential to maintain the efficient operation of these systems. HVAC systems consist of various components, including heating and cooling units, ventilation units, dampers, air terminals, louvers, ducts, and pipes. The air terminal is one of the most crucial elements that interact with the indoor environment. In this thesis, the interaction of air terminals with occupants in indoor spaces was observed and visualized using Computational Fluid Dynamics (CFD). Three types of diffusers were used in the study: a square diffuser, a four-way swirl diffuser, and a hexagonal diffuser designed by Cem Keskin. The interaction of these diffusers with the air inside the room, their airflow characteristics, and their impact on thermal comfort were investigated. The Fanger method's six variables were discussed in this context. Based on the findings, it was observed that the airflow characteristics of the hexagonal diffuser varied based on the openings, while the four-way swirl diffuser was found unsuitable for providing thermal comfort in an office environment.

Bio:

Tolga Arda Eraslan obtained her B.Sc. in Mechanical Engineering from Özyeğin University in 2019. He is pursuing an M.Sc. degree at Özyeğin University, focusing on thermal comfort and indoor airflow. During her studies, he used experimental, theoretical, and computational research methods actively under the supervision of Prof. Dr. Mustafa Pınar Mengüç at the Center for Energy, Environment, and Economy (CEEE).