Brohus H, Frier C, Heiselberg P
Year:
2001
Bibliographic info:
Hong Kong, City University, Division of Building Science and Technology, 2001, proceedings of IAQVEC 2001, "Indoor Air Quality, Ventilation and Energy Conservation in Buildings: Fourth International Conference", held Changsha, Hunan, China, 2-5 October, 2

Multizone modelling is a way to determine the air flows in a complex ventilated building subject to internal and external loads. The purpose of this work is to consider and quantify the influence of randomness in the load parameters, which is accomplished by means of a stochastic multizone model. In the first place a deterministic multizone model is applied. The model is capable of predicting air flow and pressure distribution within a building divided into an arbitrary number of zones and flow paths. The air flow is driven by pressure differences due to wind and stack effect. Next, the multizone model is coupled with a Monte Carlo Simulation module generating multiple realisations of input according to the statistical distribution of data. Statistical treatment of output data results in output distributions and statistics of the resulting air flows. The method is illustrated by a case study.