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WP 4 - Model development and calibration


 WP leader : VTT
 Objectives

Develop and calibrate a model that allows to describe and predict airborne microbial biocontamination dispersion in closed habitats.

Description of work and role of partners

WP 4.1 Dataset and monitoring requirements
  Leader: VTT
In this work package it is aimed to identify all the necessary information for the model development and accurate prediction of contaminant dispersion. This includes the boundaries of the model like geometry and dimensions of the living quarter, location and characteristics of air inlets and outlets, physical blockages (partitions, furniture and equipment), and other factors that influence air movement like cooling fans, air conditioners, warm or cool surfaces etc. In addition, the environmental parameters used as input for the model will be determined This task is strongly linked with the task 3.1 “BIOS capabilities”. Depending on current BIOS capabilities and available dataset, the equipment that should be added to the facility to complete the dataset is identified.

WP 4.2 Model development  Leader: VTT
First physical model will be developed with the information from the BIOS facility provided by IBP, while in parallel the physical characterisation of the BIOS facility will be done. The model will be continuously improved, also integrating and focusing on the microbial aspects.

WP 4.3 Physical calibration
Leader: VTT
Using the environmental data from the physical characterisation of BIOS, the physical model will be calibrated in the VTT laboratory test facility. A geometrically simple model simulating the VTT’s test room will be developed for evaluating the performance of particle dispersion modelling The parameters of the model will be chosen in order to have its outputs as near to the reality as possible. It should give a correct prediction of the physical parameters (air velocities, T, humidity, and contaminant dispersion.) in order to develop the integrated model.

WP 4.4 Bioaerosol calibration Leader: UEF
This is the final step of the model development work package. Like the previous task, it will consist in calibrating the model, but this time for a biological aerosol. The outputs are compared with the actual biocontamination measured in the VTT laboratory test facility and the model parameters are readjusted so that the model output predicts as close as possible the real behaviour of the bioaerosol. The both bacterial and fungal aerosols are compared.