| Title |
Natural Ventilation Performance in Horizontal Expansion Remodeling of Aging Apartment Complexes Focused on 2-Bay Floor Plans |
| Authors |
최준호(Choi, Junho) ; 박지은(Park, Jee Eun) ; 이영인(Lee, Yeong-In) |
| DOI |
https://doi.org/10.5659/JAIK.2025.41.6.57 |
| Keywords |
Aged Apartment; Remodeling; Natural Ventilation; Horizontal Expansion; CFD |
| Abstract |
This study quantitatively examines how horizontal expansion in remodeled apartment complexes affects natural ventilation performance.
Computational Fluid Dynamics (CFD) simulations were used to evaluate six remodeling options for 2-bay corridor-type units with varying
expansion areas. The simulations analyzed ventilation performance at the complex level, using velocity and pressure values at inlets and
outlets as input data. Each remodeling alternative was assessed both overall and at the individual room level, including spaces such as the
living room, bedrooms, and kitchen. Key indicators included airflow velocity and Age of Air (AOA), which represent essential metrics for
understanding how effectively fresh air is circulated indoors. Results showed that horizontal expansion led to a decrease in indoor airflow
velocity by approximately 11.24% to 18.93%, while AOA increased by around 26.08% to 59.69%. In some alternatives, airflow either
improved or stagnated in specific areas, suggesting the need for careful consideration of these effects when designing remodeling layouts that
aim to balance spatial enlargement with environmental performance. |