| Title |
Evaluation of Thermal Comfort and Energy Performance for the Radiant Floor Cooling System with Dedicated Outdoor Air System in Apartment Building |
| Authors |
Jin, Hua-Guo ; Jeong, Chang-Ho ; Yeo, Myoung-Souk ; Kim, Kwang-Woo |
| Keywords |
Apartment Building ; Radiant Floor Cooling ; Dedicated Outdoor Air System ; Surface Condensation ; Thermal Comfort ; Energy Performance |
| Abstract |
In this study, thermal comfort and energy performance of the Radiant Floor Cooling System integrated with Dedicated Outdoor Air System(RFCS-DOAS) was analyzed and compared with the existing system, Packaged Air Conditioner with Energy Recovery Ventilator(PAC-ERV). As a result, the room temperature maintained within the range of 25～27℃ with both of PAC-ERV and RFCS-DOAS. Since the minimum floor surface temperature was 20℃ and the dew-point temperature was from 14℃ to 16℃, the condensation on the surface did not occur. In the aspect of the thermal comfort, minimum value of PMV was ?0.62 and maximum PPD was 12.5% for PAC-ERV, which was out of recommended range. However, RFCS-DOAS could maintain the PMV and PPD within the recommended range. In addition, the total energy consumption during continuous operation in the PAC-ERV was 1,098 kWh which were about 1.5 times more than 717kWh, the total energy consumption of the RFCS-DOAS, and during intermittent operation, the total energy consumption in the PAC-ERV showed 730kWh which were about 1.8 times more than 407kWh, the total energy consumption of the RFCS-DOAS. So, the energy consumption ratio of the PAC-ERV to RFCS-DOAS during continuous operation was lower than that during intermittent operation. |