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http://dx.doi.org/10.3795/KSME-B.2012.36.7.683

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

Jang, Heon-Deock (Dept. of Mechanical Engineering, Yonsei Univ.)
Lee, Dae-Hui (Dept. of Mechanical Engineering, Yonsei Univ.)
Lee, Jin-Ho (Dept. of Mechanical Engineering, Yonsei Univ.)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.36, no.7, 2012 , pp. 683-687 More about this Journal
Abstract
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 $10^{\circ}$.
Keywords
Airflow Distribution; Entrainment Ratio; Supply Air Temperature; Vane Angle;
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  • Reference
1 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.
2 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.   DOI   ScienceOn
3 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.
4 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
5 Inoue, U., 2004, "HAVC Handbook," 4th ed, hanmi, pp. 448-449
6 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.
7 Lee, H., 2009, "Cold Air Distribution System," Energy Equipment Magazine, No. 9, pp. 100-104.