This paper describes the modelling and the experimental validation under ALLAN™ Simulation software 3 of a dwelling subjected to actual indoor and outdoor conditions. The construction of the global model is made in two steps:
This paper deals with the problem of exhaust cross-contamination between vehicles in a slow-moving traffic queue, as would be found in a busy modern city. This study has been undertaken using an open-jet wind tunnel, to determine the level of exhaust contamination around a 1:10 scale model car under various prevailing wind conditions. Tracer-gas techniques have been combined with static pressure measurements, to model the flow of pollutants around a vehicle body.
Fire-barrier requirements in above-ceiling spaces have been relaxed in the new Building Regulations. Anthony Ferguson explains why, and looks at the computer modelling involved.
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