Full-scale experimental and computational fluid dynamics (CFD) methods were used to investigate the velocity and temperature fields in a mechanically ventilated room. Detailed airflow fields were measured in three cases of ventilation air temperature: an isothermal case, a hot case and a cold case. The ventilation system created a round jet which developed near the ceiling. The experimental data were used to test two turbulence models: a first order k-e turbulence model and a second order RSM turbulence model.
This paper is not a technical paper but, instead, focuses on the methods by which information on recent advances in ventilation technology and systems may be transferred to engineers. This is important because it enables the application of these innovations in the design and maintenance of buildings. In this context, the paper describes the educational material developed by the European project Vent DisCourse. It consists of material specifically written to facilitate distance learning postgraduate study in the area of energy efficient ventilation for buildings.
The requirements for good indoor air quality and energy efficiency have often been considered to be in conflict with each other. However, buildings with low energy consumption in Europe also seem to have a lower rate of building related health symptoms. This indicates the importance of proper design and installation as well as qualified, well trained operational personnel, who understand both the requirements for good indoor air quality and energy efficiency. Several strategies for ventilation are described in this paper.
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