Du-Sam Song
Sungkyunkwan University · 工学
研究室紹介
Professor Du-Sam Song's research lab specializes in building energy efficiency and indoor environmental quality, focusing on the development of advanced simulation and control strategies for sustainable buildings. The lab investigates meta-modeling techniques for early-stage energy load prediction, indoor air quality and infection risk assessment using CO₂-based rebreathed air fraction analysis, and innovative mechanical ventilation solutions to mitigate stack effects in high-rise buildings. A key research direction involves the integration of smart control systems for heating, cooling, lighting, and automated blinds to optimize energy performance while maintaining occupant comfort. The lab combines field measurements with computational modeling to deliver practical, data-driven solutions for energy conservation in real-world building environments.
Research Overview
Research Output Trend
Figures are computed from collected data and may differ slightly.
Selected Papers
15Interest in research analyzing and predicting energy loads and consumption in the early stages of building design using meta-models has constantly increased in recent years. Generally, it requires many simulated or measured results to build meta-models, which significantly affects their accuracy. In this study, Latin Hypercube Sampling (LHS) is proposed as an alternative to Fractional Factor Design (FFD), since it can improve the accuracy while including the nonlinear effect of design parameters
The Wells-Riley equation has been extensively used to quantify the infection risk of airborne transmission indoors. This equation is difficult to apply to actual conditions because it requires measurement of the outdoor air supply rate, which vary with time and are difficult to quantify. The method of determining the fraction of inhaled air that has been exhaled previously by someone in a building using a CO2 concentration measurement can solve the limitations of the existing method. Using this
Even though the measures to minimize the stack effect in high-rise buildings were taken that include a revolving door on the lobby floor, additional barriers to the passage of air in the lower part of the building, and air-tightness reinforcement for elevator doors, the stack effect is still present during cold season in Korea. However, it is difficult to fully apply the measures for stack effect under occupied condition in high-rise buildings. In this study, as an advanced method to lower the s