AIVC - Air Infiltration and Ventilation Centre

Search form


You are here


air movement

Vortex Air Distribution System for Boiler House

This article describes a new and more efficient Vortex Air Distribution system for a soda recovery boiler house. Essentially th.e technology utilises directional air supply of up to 150 m3/s to compensate for beat gains of up to 2000 kW. Issues addressed include all stages of the design process from the Computational Fluid Dynamic (CFO) experiment and scale mock-up tests in the laboratory conditions to the field measurements after the system had been installed. The supply air is distributed into the building through specially designed air terminals.

Open Source Cooling


Airborne particles in a ventilated room: prediction and measurement.

A study of air movement and aerosol particle distribution and migration in a ventilated two-zone chamber is presented. The comparisons of average particle concentration decay between numerical results and measured data are generally satisfactory and acceptable. It can be concluded that the particle distribution and migration are mainly influenced by the airflow pattern and ventilation rates.

Displacement ventilation - effects of movement and exhalation.

Full-scale experiments were made in a displacement ventilated room with two breathing thermal manikins to study the effect of movements and breathing on the vertical contaminant distribution, and on the personal exposure of occupants. Concentrations were measured with tracer gas equipment in the room and in the inhalation of both manikins. Tracer gas was added in the heat plume above a sitting manikin, or in the exhalation through either the nose or the mouth. The other manikin moved back and forth at different speeds on a low trolley.

Smoke control basics.


Natural ventilation and artificial neural networks.

This study presents a new method of interior air motion assessment using artificial neural networks. The air motion inside a building depends not only on the external wind velocity, but also to a great extent on most of architectural parameters such as position and orientation of building, size and configuration of windows, roof geometry, whether the building is stilted or not, etc ..