A dynamic method to estimate indoor dust sink and source

A dynamic method for estimating dust sink and source in buildings is descri bed in this paper. The method is based on a mass balance equation and a non linear parameter estimation technique. The inputs to the method are dust co ncentrations versus time. The outputs are the estimates of dust sink and so urce. The method converts measurement of dust sink and source to measuremen ts of dust concentration versus time. Published data and experimental measu rements were used to validate this method. The errors generated by the meth od are less than 2% for production rates and 7% for deposition rates. The m ethod is not sensitive to different parameter estimation methods and initia l values of parameters. (C) 2000 Elsevier Science Ltd. All rights reserved.