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http://dx.doi.org/10.5572/KOSAE.2015.31.4.385

Numerical Analysis on the Coupled Operation of Ventilation Window System and Central Cooling System  

Park, Dong Yoon (Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology)
Chang, Seongju (Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology)
Publication Information
Journal of Korean Society for Atmospheric Environment / v.31, no.4, 2015 , pp. 385-395 More about this Journal
Abstract
This study evaluated indoor environmental characteristics in an office room equipped both with ventilation window system and central cooling system. Fresh air is supplied only by the central cooling system whereas indoor air is discharged outside through both ceiling diffuser and a ventilation window system. Numerical study is conducted by changing the volumetric flow rates of exhaust ports of each system. For estimating the performance of this coupled system, $CO_2$ concentration and Predicted Mean Vote (PMV) were calculated using Computational Fluid Dynamics (CFD) simulation. The more the ceiling diffuser exhausts indoor air, the more the $CO_2$ concentration decreases. However, when the ventilation window system exhausts more indoor air, thermal comfort level gets improved in the office room with cooling system. Therefore, when the ventilation window system is operated, the coupled operation with central cooling system should be considered for enhancing indoor air quality and thermal comfort, together.
Keywords
Ventilation window system; Cooling system; Thermal comfort; Indoor air quality; Computational fluid dynamics (CFD);
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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