Thesis Defense–Ahmet Salih Adalı (MSME)

Ahmet Salih ADALI – M.Sc. in Mechanical Engineering

Assoc. Prof. Özgür Ertunç –   Advisor

Date: 13.08.2024

Time: 10.00

Location: AB4 428

“THERMAL MANAGEMENT OF HIGH BRIGHT LED DISPLAY SYSTEM BY FORCED CONVECTION AND COOLING PERFORMANCE OPTIMIZATION WITH ANALYTICAL AND NUMERICAL APPROACHES”

Assoc. Prof. Özgür Ertunç, Özyeğin University

Prof. Bayram Şahin, İstanbul Technical University

Asst. Prof. Altuğ Melik Başol, Özyeğin University

Abstract                                                      

Thermal management of display devices is crucial for the long-term performance and life of the products. In line with customer demands, multipurpose display devices designed for operating in various environments must comply with high expectations of brightness. However, high brightness requirements mean considerable power consumption, leading to significant heat dissipation within the device. Analytical and numerical approaches are commonly used to optimize cooling performance by tailoring cooling system designs. The heat generation and dissipation inside the display systems could be modeled by using several numerical tools (e.g. ANSYS Icepak).

The main objective of our research is to develop and optimize a cooling system that maintains the temperatures of critical components within safe operational limits, thereby keeping the overall reliability and efficiency of the display system. To achieve this, the study investigates various cooling methodologies while focusing on the combination of conduction and forced convection mechanisms to achieve the desired thermal management.

Key findings show that a tailored cooling system, designed with a combination of conduction and forced convection, can significantly improve thermal management. The study proposes a design methodology that minimizes the number of components in the cooling system while allowing high cooling performance under harsh operating conditions. Comparison of analytical and numerical results and prototype testing validate the feasibility of the proposed cooling solutions.

In summary, our study contributes valuable insights into the thermal management of high-bright LED displays. It offers practical solutions for indoor and semi-outdoor display applications.

Bio:

Ahmet Salih Adalı received his BSc degree in Mechanical Engineering from Istanbul Technical University in 2016. He is currently the leader of the Analysis, Simulation, and Packaging Team at Vestel Electronics Industry and Trade. Corp. in Manisa, Türkiye. His interests mainly focus on the thermal management of LED display devices like TVs and digital signages (DS) during product development.