A modified T-method simulation for multi-fan duct systems

The modified T-method can be applied to the prediction of the flow distribution in multi-fan duct systems. The method has been tested on the single-fan duct system presented in the ASHRAE handbook, the results obtained were in adequation with those published. So a symetry of a two-fan duct system has been investigated. It worked well. In order to evaluate the capability of the modified T-method simulation for multi-fan duct systems, a bathroom ventilation system in a 20 storey residential building was tested . The results are satisfactory.