Design-Driven Daylight Simulation for Lighting Optimization in an Educational Building at YOBU

Abstract

The aim of this study is to analyze the illumination performance of selected workshops, corridors, and instructor rooms at the Department of Architecture, Yozgat Bozok University (YOBU), and to propose solutions to identified problems. In educational buildings used for most of the day, optimizing daylight and minimizing reliance on electric lighting is crucial for sustainability, energy efficiency, and user comfort. A review of university building studies indicates that glare and insufficient lighting are common issues. In this study, illumination performance was examined using two methods: in-situ measurements and simulation. Light levels were recorded with a lux meter at specific time intervals and then compared with the Velux Daylight Visualizer simulations, verifying the tool’s accuracy. Based on these data, design suggestions were developed, and the base case was compared with alternative designs through simulation. The results identified the most effective design suggestion and quantified the annual daylight performance of the existing situation. Findings indicate that the strategic use of simulation tools at the design stage can reduce the need for electric lighting and support energy savings.