Modelling of volatile organic compounds emission from dry building materials

摘要

A numerical and an analytical model were developed to predict the volatile organic compound (VOC) emission rate from dry building materials. Both models consider the mass diffusion process within the material and the mass convection and diffusion processes in the boundary layer. All the parameters, the mass diffusion coefficient of the material, the material/air partition coefficient, and the mass transfer coefficient of the air can be either found in the literature or calculated using known principles. The predictions of the models were validated at two levels: with experimental results from the specially designed test and with predictions made by a CFD model.