| Title |
Evaluation on Indoor Thermal Comfort Level and Energy Consumption by Implementing Thermal Comfort Control Method with Effective Draft Temperature |
| Authors |
San Jin ; Hong-Ik Yoon ; Sung Lok Do |
| DOI |
https://doi.org/10.6110/KJACR.2024.36.9.454 |
| Keywords |
유효드래프트온도; 에너지 사용량; 실내 열쾌적성; 온열 쾌적 제어 Effective draft temperature; Energy consumption; Indoor thermal comfort; Thermal comfort control |
| Abstract |
A dry bulb temperature-based HVAC control method has been traditionally used; however, the method is limited to considering the variables (e.g., humidity, air flow, mean radiant temperature, and others) that affect indoor thermal comfort. This feature may result in an uncomfortable indoor thermal environment and increase energy consumption. Thus, a thermal comfort control method based on effective draft temperature (EDT) was developed to improve these shortcomings. This study aimed to evaluate the impact of the EDT-based thermal comfort control method on indoor thermal comfort and energy consumption by developing a whole-building energy simulation model to implement the thermal comfort control method. The simulated results of indoor thermal comfort and energy consumption were analyzed by comparing the EDT-based control method to a dry bulb temperature-based one. The comparison showed that the indoor thermal environment operated with the EDT-based control method maintained a better comfort level (increased from 35.0% to 97.2% for cooling and from 87.6% to 95.5% for heating). In addition, the energy consumption decreased by 10.7% for cooling and 21.2% for heating compared to the dry bulb temperature-based control method. Therefore, operating an HVAC system using the EDT-based control method is expected to improve the indoor thermal comfort level and save energy consumption. |