Model for control of indoor air quality in an industrial environment

摘要

This paper is focused on indoor air quality study (IAQ) into a metallurgic industrialhall. A model (named INPOLL) for computing the time evolution of concentrations of various airpollutants in closed working areas was carried out. The model uses a partition of the working unit in aconvenient number of cells with known transfer and ventilation air fluxes. The hall is also supposedto communicate with its exterior, both by accidental air leakages and through the ventilation system.Then, a time-dependent injection of pollutants occurring in various sites of the working spacedetermines the subsequent evolution of pollutant concentrations in all the compartments of thepartition. Starting from some given set of background concentrations, the model can predict thevalues of the pollutant concentrations in each cell, at any time from the start. Maxima of pollutantconcentrations result when some furnace begins the discharging process. By varying the modelparameters (like the air currents for ventilation or the time delay between furnace discharges), one canobtain a process optimization from the point of view pollutant concentrations. The model is suitablefor dynamic simulations of indoor environmental dispersion of pollutants.