The media used to simulate exhaust is introduced into the modular environment as a stack emission at elevated temperature. Resultant downstream temperature changes are monitored using sensitive thermistors and a multi-channel data acquisition system. The technique used for physical modelling is unique to Theakston Environmental and allows complete mapping of 3-D plume trajectories or determination of concentrations at critical points of impingement. Typical probe inserted into the scale model to make instantaneous measurements. Typical results of instantaneous concentrations of diesel exhaust at a given point.
Green line represents mean and red represents health limit.