Journal of the Architectural Institute of Korea Planning & Design (대한건축학회논문집:계획계)

Architectural Institute of Korea (대한건축학회)
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Evaluation of Thermal Comfort and Energy Performance for the Radiant Floor Cooling System with Dedicated Outdoor Air System in Apartment Building

공동주택에서 바닥 복사냉방시스템과 외기전담시스템의 통합 적용 시 열 쾌적 및 에너지 성능 평가

  • Received : 2013.06.05
  • Published : 2013.11.25
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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 $25{\sim}27^{\circ}C$ with both of PAC-ERV and RFCS-DOAS. Since the minimum floor surface temperature was $20^{\circ}C$ and the dew-point temperature was from $14^{\circ}C$ to $16^{\circ}C$, 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.

Keywords

Acknowledgement

Supported by : 한국연구재단

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