A method for analysis of controllability of duct systems designed for variable ventilation flow rates

This paper presents a tool, based on a method using IDA for simulation of duct systems and MATLAB as a pre- and post-processor, to study the controllability of VAV-systems. The focus of this paper is on how the data created during the simulations are analysed and how criteria matrices are used to determine the grade of controllability of the systems. The method is tested on a set of different system configurations and the result shows that it, as a whole, appears to be viable. Furthermore, there is a discussion about how MATLAB and IDA are used as an integrated part of the method.