Atmospheric ice accretion on air intake louvers of buildings in cold regions
DOI:
https://doi.org/10.1260/1750-9548.6.4.379Abstract
In cold regions, air intake louvers are installed on buildings so as to deflect foreign matter like ice and snow particles and prevent them from entering the buildings, while allowing air to pass. In this research work a CFD based parametric numerical study has been carried out to simulate the rate and shape of atmospheric ice accretion on air intake louvers and to analyse the effects of various geometric parameters of louvers such as: placement angle, shape and size on the resultant ice accretion. It was concluded that ice mainly accretes at the front and top sides of the louver surface. It was also found that the rate of ice accretion increase in louver angle and the spacing between the louver slats.
References
Toshikazu Nakanishi, et al., Investigation of Air Flow passing through Louvers in Komatsu Technical Report 2007.
Chandrashekaran, D., AIR FLOW THROUGH LOUVERED OPENINGS: EFFECT OF LOUVER SLATS ON AIR MOVEMENT INSIDE A SPACE, in FACULTY OF THE USC SCHOOL OF ARCHITECTURE 2010, UNIVERSITY OF SOUTHERN CALIFORNIA: CALIFORNIA. p. 140.
G M Stavrakakisa, et al., Natural cross-ventilation term in buildings: Building-scale experiments, numerical simulation and thermal comfort evaluation. Energy & Buildings, 2008. 40(9): p. 1666-1681. https://doi.org/10.1016/j.enbuild.2008.02.022
Steve Sharples and C. Nelson, Performance of ventilator components for natural ventilation applications. Buildings and Environment, 2006. 41(12): p. 1821-1830. https://doi.org/10.1016/j.buildenv.2005.08.012
G S Yakubu and S. Sharples., Airflow through modulated louvre systems. Building Services Engineering Research and Technology, 1991. 12: p. 151-155. https://doi.org/10.1177/014362449101200405
Steve Sharples and A. Maghrabi. Airflow through louvers : An experimental and CFD study. in 21st Annual AIVC Conference : Innovations in ventilation technology. 2000. Hauge.
Tablada, et al. Exterior Louvers as a Passive Cooling Strategy in a Residential Building: Computational Fluid Dynamics and building energy simulation modelling. in PLEA 2009 - 26th Conference on Passive and Low Energy Architecture. 2009. Quebec.
Hughes, Ben Richard, and A. Ghani., numerical investigation into the effect of Windvent louvre external angle on passive stack ventilation performance. Building and Environment, 2010. 45(4): p. 1025-1036. https://doi.org/10.1016/j.buildenv.2009.10.010
Ping Fu, Masoud Farzaneh, and G. Bouchard, Two dimensional modelling of the ice accretion process on transmission line wires and conductors. Cold region science & technology, 2006. 46: p. 132-146. https://doi.org/10.1016/j.coldregions.2006.06.004
T Wagner, U PEil, and C. Borri., Numerical investigation of conductor bundle icing, in EACWE 52009: Florence, Italy.
J Shin and T. H. Bind., Experimental and computational ice shapes and resulting drag increase for a NACA 0012 airfoil, 1992, NASA technical memorandum 105743.
Manual, N. S. U., 2010, NTI.
R Clift, J R Grace, and M. E. Weber, Bubbles, Drops and Particles. 1978, New York: Academic Press.
S Özgen and Æ. M. Canıbek, Ice accretion simulation on multi-element airfoils using extended Messinger model. Heat Mass Transfer, 2009. 45: p. 305-322. https://doi.org/10.1007/s00231-008-0430-4
Muhammad S Virk, Matthew C Homola, and P. J. Nicklasson., Effect of rime ice accretion on aerodynamic characteristics of wind turbine blade profiles. Wind Engineering 2010. 34(2): p. 207-218. https://doi.org/10.1260/0309-524x.34.2.207
Muhammad S Virk, et al., Efect of atmospheric temperature and droplet size variation on ice accretion of wind turbine blades,. Journal of wind engineering and industrial aerodynamics, 2010. 98: p. 724-729. https://doi.org/10.1016/j.jweia.2010.06.007
Published
How to Cite
Issue
Section
Copyright (c) 2012 M Virk
This work is licensed under a Creative Commons Attribution 4.0 International License.
