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대공간 건축물의 천정 취출구 각도변화에 따른 온도분포에 관한 연구 The Research of Temperature Distribution with Various Angles of Roof Diffusers in Large Enclosure

문기주, 정종안, 문훈영
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한국기계기술학회지 (韓國機械技術學會誌)
제16권 제4호 (2014.08)
pp.1665-1671
한국기계기술학회 (Korean Society of Mechanical Technology)
초록

Large enclosure means a space of high ceiling and large floor. Designing the heating system, many thermal conditions exist, such as thermal comfort, IAQ, heating load and energy efficiency etc. The prediction of the temperature distribution is carried out according to some of the diffuser angle. The simulation 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, and the 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 thermal buoyancy effect. And the asymmetry of the temperature distribution is increased.

키워드
Diffusion Angle취출각도Thermal Buoyancy열 부력Air Nozzle공기노즐Large Enclosure대공간건축물Heat Transmission Coefficient열관류율ADPI공기확산 성능계수
목차
Abstract
 1. 서론
 2. 시뮬레이션
  2.1 시뮬레이션 대상공간 조건
  2.2 해석대상 건물의 설계조건
  2.3 해석방법 및 내용
 3. 결과 및 고찰
 4. 결론
 References
저자
  • 문기주(㈜센도리 기술연구소장) | Kie-ju Moon
  • 정종안(송원대학교 기계자동차공학과) | Jong-an Jung
  • 문훈영(송원대학교 기계자동차공학과) | Hoon-young Moon