대한기계학회논문집B (Transactions of the Korean Society of Mechanical Engineers B)

  • 제36권7호
  • /
  • Pages.683-687
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  • 2012
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  • 1226-4881(pISSN)
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  • 2288-5324(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
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사각 천장형 루버 디퓨저의 토출 각도에 따른 실내유동에 관한 연구

Study on Indoor Flow According to Vane Angle of Square Ceiling Type Louver Diffuser

  • 투고 : 2011.12.13
  • 심사 : 2012.04.05
  • 발행 : 2012.07.01
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초록

본 연구는 CFD 해석을 이용하여 사각 천장형 루버 디퓨저의 토출각도와 토출 유량에 따른 실내 공기유동 특성에 관한 것이다. CFD 툴은 상용프로그램인 ANSYS 13.0의 CFX를 이용하였다. 연구에 사용된 디퓨저는 적은 유량에서도 충분한 도달거리를 확보할 수 있도록 모델링하였으며, 실내 크기는 $6{\times}6{\times}2.7m$로 디퓨저의 대각선 방향으로 원형 배기구를 모델링 하였다. 토출 공기의 체적유량은 5.1CMM, 7.4CMM이며, 디퓨저의 토출각도를 $30^{\circ}$에서부터 $60^{\circ}$까지 $10^{\circ}$씩 변화하여 실내의 유동특성에 대하여 고찰하였다.

The purpose of this paper is to numerically study the characteristics of the indoor air flow of a square ceiling type diffuser according to the vane angle and flow rate. The CFX of ANSYS 13.0 was used for the CFD tool. The size of the room is $6m(X){\times}6m(Y){\times}2.7m(Z)$. The exhaust diffuser was positioned diagonally to the supply diffuser. This diffuser was designed to have many holes, so the air supply had long throw patterns with low velocity decay. The characteristics of the indoor air flow was studied at volume flow rates of 5.1 CMM and 7.4 CMM, and a vane angle from $30^{\circ}$ to $60^{\circ}$, every $10^{\circ}$.

키워드

참고문헌

  1. Lee, H., 2009, "Cold Air Distribution System," Energy Equipment Magazine, No. 9, pp. 100-104.
  2. Jung, D. S. and Jeong, C. S., 1998, "A Comparative Study on the Cold Air Distribution System and Conventional Air Distribution System," SAREK, pp. 1633-1638.
  3. Ying Sun, Theodore F. Smith, 2005, "Air Flow Characteristics of a Room with Square Cone Diffusers," Building and Environment, Vol. 40, No. 5, pp. 589-600. https://doi.org/10.1016/j.buildenv.2004.07.018
  4. Kim, H., Seok, H., Choi, D. and Yang, J., 2009, "The Air Flow Characteristics According to Diffuser Modeling of the CFD Simulation," KIAEBS, No. 10, pp. 155-158.
  5. Manning, A., Riskowski, G. L. and Memarzadeh, F., 2000, "Analysis of Air Supply Type and Exhaust Location in Laboratory Animal Research Facilities Using CFD," ASHRAE, Vol 106, pt. 1
  6. Inoue, U., 2004, "HAVC Handbook," 4th ed, hanmi, pp. 448-449
  7. Sung, J., An, K., Lee, G., Choi, H. and Lee, I., 2003, "Optimal Flow Control of Ceiling Type Indoor Unit by PIV Measurements," Trans. of the KSME(B), Vol. 27, No. 8, pp. 1042-1050.

피인용 문헌

  1. Simulation-based turbofan shape optimization for reducing power consumption and noise of a bladeless circular ceiling air conditioner vol.18, pp.8, 2017, https://doi.org/10.1007/s12541-017-0135-z