대공간 건축물의 천정 취출구 각도변화에 따른 온도분포에 관한 연구
The Research of Temperature Distribution with Various Angles of Roof Diffusers in Large Enclosure
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초록
Large enclosure means a space of high ceiling and large floor. Designing the heating system, manythermal conditions exist, such as thermal comfort, IAQ, heating load and energy efficiency etc. Theprediction of the temperature distribution is carried out according to some of the diffuser angle. Thesimulation conditions are 7 m high diffuser, 4/2 inlet/outlet diffusers, 39 °C discharge air temperature,and 6 m/s exit velocity. The results show that 45° diffuser provides an optimal thermal environment, andthe reason is that the temperature is closed to the designed temperature 22 °C at 1.18m elevation plane. As the diffuser angle is decreased, the temperature of the upper region is increased for the thermalbuoyancy effect. And the asymmetry of the temperature distribution is increased.
Abstract
Large enclosure means a space of high ceiling and large floor. Designing the heating system, manythermal conditions exist, such as thermal comfort, IAQ, heating load and energy efficiency etc. Theprediction of the temperature distribution is carried out according to some of the diffuser angle. Thesimulation conditions are 7 m high diffuser, 4/2 inlet/outlet diffusers, 39 °C discharge air temperature,and 6 m/s exit velocity. The results show that 45° diffuser provides an optimal thermal environment, andthe reason is that the temperature is closed to the designed temperature 22 °C at 1.18m elevation plane. As the diffuser angle is decreased, the temperature of the upper region is increased for the thermalbuoyancy effect. And the asymmetry of the temperature distribution is increased.
참고문헌 (6)
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- The Analysis of Temperature and Airflow Distribution for Energy Conservation in Large Enclosure, , Ministry of Commerce, Industry and Energy, 26~120, pp.1997-E-BD02-P-24 (2000)