AIVC - Air Infiltration and Ventilation Centre

Search form


You are here

Home  |  ventilation performance

Towards the determination of regional purging flow rate.

Peng S H, Davidson L, 1997
ventilation performance | mathematical modelling
Bibliographic info: UK, Building and Environment, Vol 32, No 6, 1997, pp 513-525
Languages: English

This paper deals with the description and determination of the purging flow rate, UP for ventilation systems or equivalent flow systems. The regional purging flow rate and its use are discussed and proposed. By using the mass conservation principle, UP is embodied in various accessible mathematical expressions in terms of the transfer probability. Some UP-related parameters are described. A Markov chain model is proposed for determining the transfer probability and exploring several useful ventilation indices. An effective CN method is proposed for calculating the interchanging flow rates between various regions. The application of these proposals is demonstrated, and they appear to be promising for analyzing and assessing ventilation performance 

Related publications

This report summarizes the work of the initial working phase of IEA ECB Annex 62 Ventil
Maria Kolokotroni, Per Heiselberg, Lorenzo Pagliano, Jie Han, Regina Bokel, Peter Holzer, Annamaria Belleri, Denmark
This summary report presents insights on recommendations into how ventilative cooling i
Christoffer Plesner, Flourentzos Flourentzou, Guoqiang Zhang, Hilde Breesch, Per Heiselberg, Michal Pomianowski, Peter Holzer, Maria Kolokotroni, Annamaria Belleri, Denmark
Overheating in buildings is an emerging challenge at the design stage and during operat
Peter Holzer, Theofanis Psomas, Denmark