| Title |
Evaluation on Thermal Environment Installed Ventilating Fans in the Rotunda at New National Museum of Korea |
| Keywords |
Thermal comfort ; 온열쾌적도 ; Predicted mean vote ; PMV, 예상온열감 ; Predicted percentage of dissatisfied ; PPD, 예상불만족률 ; Thermal stratification ; 열성층화 |
| Abstract |
In order to improve thermal comfort in the Rotunda, which is high and wide visiting space of the new national museum of Korea, eight ventilating fans were installed near the ceiling of Rotunda. It has been analyzed thermal comfort of Rotunda with/without ventilating fans by numerical simulation. To evaluate thermal comfort of the Rotunda, well-known indices, PMV and PPD were introduced. The results of present investigation show that temperature distribution of the case with fans is closer to target temperature than the case without fans at the breathing zone. In the case without fans, thermal stratification with 16℃ of temperature difference occurs along the height of the Rotunda which makes the thermal environment worse and the PPD values reach up to 50% in the 6th floor connection passage. In the case with fans, however, the vertical temperature difference were reduced to 9℃ and the PPD values were lower below 20%. Consequently, the ventilating fans adopted on this study are effectively used for improving the thermal comfort in large space structure with thermal stratification. |