Journal Home > Volume 8 , Issue 1

The paper presents the results of numerical simulation of infiltration and ventilation airflows in three different objects: small single-family building, school building and multifamily building. Each of these buildings was represented by several different numerical models varying in the degree of detail of calculation zoning representation, from the simplest, single-zone models to complicated, multizone ones. The results of simulations provided the data, which enable indication how the detail of zoning of the building affects the results of calculations of ventilation airflows. Simulations were carried out in CONTAM software. The results showed that the detail of zoning causes differences in air infiltration within the range of 7%-40% for particular cases. Several guidelines concerning building numerical models for simulation of ventilation airflows were formulated.


menu
Abstract
Full text
Outline
About this article

Effect of calculation zoning on numerical modelling of ventilation airflows

Show Author's information Andrzej Baranowski( )Joanna Ferdyn-Grygierek
Department of Heating, Ventilation and Dust Removal Technology, Silesian University of Technology, Konarskiego 20, 44-100 Gliwice, Poland

Abstract

The paper presents the results of numerical simulation of infiltration and ventilation airflows in three different objects: small single-family building, school building and multifamily building. Each of these buildings was represented by several different numerical models varying in the degree of detail of calculation zoning representation, from the simplest, single-zone models to complicated, multizone ones. The results of simulations provided the data, which enable indication how the detail of zoning of the building affects the results of calculations of ventilation airflows. Simulations were carried out in CONTAM software. The results showed that the detail of zoning causes differences in air infiltration within the range of 7%-40% for particular cases. Several guidelines concerning building numerical models for simulation of ventilation airflows were formulated.

Keywords: numerical simulation, natural ventilation, building models

References(18)

J Axley (2007). Multizone airflow modeling in buildings: History and theory. HVAC&R, 13: 907-928.
A Baranowski, J Ferdyn-Grygierek (2009). Heat demand and air exchange in a multifamily building—Simulation with elements of validation. Building Services Engineering Research and Technology, 30: 227-240.
Q Chen (2009). Ventilation performance prediction for buildings: A method overview and recent applications. Building and Environment, 44: 848-858.
R Daghigh, NM Adam, BB Sahari, K Sopian, MA Alghoul (2008). Influences of air exchange effectiveness and its rate on thermal comfort, naturally ventilated office. Journal of Building Physics, 32: 175-194.
E Djunaedy, JLM Hensen, MGLC Loomans (2003). Development of a guideline for selecting a simulation tool for airflow prediction. In: Proceedings of 8th IBPSA International Conference, Eindhoven, the Netherlands, pp. 267-274.
WS Dols (2001). A tool for modeling airflow and contaminant transport. ASHRAE Journal, 43(3): 35-41.
SJ Emmerich (2001). Validation of multizone IAQ modeling of residential-scale buildings: A review. ASHRAE Transactions, 107(2): 619-628.
J Ferdyn-Grygierek (2004). Impact of ventilation systems on indoor air quality and annual energy consumption in school buildings. In: Proceedings of 25th AIVC Conference, “Ventilation and Retrofitting”, Prague, Czech Republic.
J Ferdyn-Grygierek, A Baranowski (2012). Assessment of the airtightness and air exchange in Polish dwellings—Measurement experiences and problems met. In: Proceedings of 33th AIVC Conference, Kopenhagen, Denmark, pp. 261-263.
SH Hyun, CS Park, G Augenbroe (2007). Uncertainty and sensitivity analysis of natural ventilation in high-rise apartment buildings. In: Proceedings of 10th IBPSA International Conference, Beijing, China, pp. 1013-1020.
J Jokisalo, T Kalamees, J Kurnitski, L Eskola, K Jokiranta, J Vinha (2008). A comparison of measured and simulated air pressure conditions of a detached house in a cold climate. Journal of Building Physics, 32: 67-89.
Y Li, P Heiselberg (2003). Analysis methods for natural and hybrid ventilation—A critical literature review and recent developments. International Journal of Ventilation, 1(4): 3-20.
M Liddament (2001). Occupant impact on ventilation. Technical Note 53, The Air Infiltration and Ventilation Centre, UK.
M Liddament (2002). A guide to energy efficient ventilation. The Air Infiltration and Ventilation Centre, UK.
DM Lorenzetti (2002). Assessing multizone airflow simulation software. In: Proceedings of 9th International Conference on Indoor Air Quality and Climate, Monterey, California, USA, pp. 267-271.
DOI
C Muller, WBM Stanley (2007). Comparison of three IAQ calculation methods. In: Proceedings of 10th IBPSA International Conference, Beijing, China, pp. 1369-1376.
WGN Walton, S Dols (2005). CONTAM 2.4 User Guide and Program Documentation. National Institute of Standards and Technology, Gaithersburg, USA.
DOI
C Younes, C Abi Shdid, G Bitsuamlak (2012). Air infiltration through building envelopes: A review. Journal of Building Physics, 35: 267-302.
Publication history
Copyright

Publication history

Received: 04 February 2014
Revised: 24 June 2014
Accepted: 29 July 2014
Published: 20 August 2014
Issue date: February 2015

Copyright

© Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2014
Return