| 논문명 |
바닥공조시스템의 온도 성층화에 따른 에너지 성능 분석 / Energy Performance Assessment according to Thermal Stratification in Underfloor Air Distribution System / 9-A 공조시스템 1 |
| 수록사항 |
대한설비공학회 2016년도 하계학술발표대회 (2016-06) |
| 주제어 |
바닥공조시스템 ; 온도 성층화 모델 ; 사무소 건물 ; 에너지플러스 ; UFDA ; Thermal Stratification model ; Office Building ; EnergyPlus |
| 요약2 |
Properly controlled UFAD systems under cooling operation produce thermal stratification exhausting the conditioned-air supplied from floor diffuser to the return plenum after removing the heat load of occupied zone. Thermal stratification is one of the important features of UFAD systems; it eliminates the necessity to consider heat from convection that occur in areas other than lower occupied zone. Hence, the system is more energy effective compared to conventional overhead systems that presume the entire space as an air conditioning space. Thus, enhancing the thermal stratification is necessary for the UFAD systems performance. In this study, we assess the UFAD energy performance by considering the thermal stratification as an input variable through the EnergyPlus simulation. As a result, enhancing thermal stratification improves the cooling energy saving potential by more than 15% as expected. On the other hand, the reduction of thermal stratification causes the increase in supply air volume so that air conditioning of occupied zone as well as upper mixed zone is needed. |
