Optimization of Air Distribution in A Non-Ducted Concealed Type Fancoil Unit Heat Exchanger

Yıl 2019, , 124 - 130, 30.11.2019

Murat Ozsoy , Canberk Yucel Onur Varlıca Serhan Kılıç Kagan Kaplan

https://doi.org/10.22399/ijcesen.479810

Cited By: 1

Öz

In
this study, increasing efficiency of a heat exchanger as a sub part of
concealed ceiling type fan coil unit is aimed. Accordingly, by determining
rotational speed of fans based on actual design; generated air distribution in
dry condition on heat exchanger is investigated via computational fluid dynamics
software. Significant low air distribution is detected in lower and higher
sides of the heat exchanger. In order to create solution to this issue and to
increase efficiency, by designed air distributor, homogenized air distribution
is targeted. As a conclusion, differentiation of air velocities and air
distribution is investigated based on various angles. By means of the
distributor with an optimum design angle, air distribution is improved and more
homogenous air distribution is achieved.

Anahtar Kelimeler

Fancoil, Air distribution, Computational fluid dynamics

Kaynakça

• [1] N. Kim, D. Kim, Y. Choi, H. Byun, J. Hwang, "Effect of Inclination Angle on the Air-side Performance of Aluminum Parallel Flow Heat Exchangers Under Wet Conditions", International Refrigeration and Air Conditioning Conference, 2008.
• [2] P. Karthik, V. Kumaresan, R. Velraj, "Experimental and Parametric Studies of A Louvred Fin and Flat Tube Compact Heat Exchanger Using Computational Fluid Dynamics", Alexandria Engineering Journal, vol. 54, no. 4, pp. 905–915, 2015, https://doi.org/10.1016/j.aej.2015.08.003
• [3] A. Vaisi, M. Esmaeilpour, H. Taherian, "Experimental Investigation of Geometry Effects on the Performance of A Compact Louvred Heat Exchanger", Applied Thermal Engineering, vol. 31, no. 16, pp. 3337–3346, 2011, https://doi.org/10.1016/j.applthermaleng.2011.06.014
• [4] W. J. Lee, J. H. Jeong, "Heat Transfer Performance Variations of Condensers Due to Non-Uniform Air Velocity Distributions", International Journal of Refrigeration, vol. 69, p. 85–95, 2016,https://doi.org/10.1016/j.ijrefrig.2016.05.009
• [5] A. Firouzar, "Bir Fan-Coil Ünitesinin Performansının Deneysel ve Sayısal Olarak Analizi", Gazi University, Science Institue, Mechanical Engineering Department, MSc Thesis, 2014.
• [6] Eurovent RS 6/C/002-2017, "Rating Standard for The Certification of Non-Ducted Fan-coil Ünits", Paris: Eurovent Certita Certification, p. 4–7.