%0 Journal Article %A Minjeong Kim and Seungchul Lee and Iman Janghorban Esfahani and Jeong Tai Kim and Chang Kyoo Yoo %D 2015 %J International Journal of Architectural and Environmental Engineering %B World Academy of Science, Engineering and Technology %I Open Science Index 103, 2015 %T Optimal Trajectory Finding of IDP Ventilation Control with Outdoor Air Information and Indoor Health Risk Index %U https://publications.waset.org/pdf/10002352 %V 103 %X This study was carried out for an underground subway station at Seoul Metro, Korea. The optimal set-points of the ventilation control system are determined every 3 hours, then, the ventilation controller adjusts the ventilation fan speed according to the optimal set-point changes. Compared to manual ventilation system which is operated irrespective of the OAQ, the IDP-based ventilation control system saves 3.7% of the energy consumption. Compared to the fixed set-point controller which is operated irrespective of the IAQ diurnal variation, the IDP-based controller shows better performance with a 2% decrease in energy consumption, maintaining the comfortable IAQ range inside the station. %P 884 - 890