This paper deals with low Reynolds number jets for personalised ventilation and the possibility to control them in order to obtain useful modifications of the flow field, it can be done by simply adding a ring-like perturbation in front of the jet itself.
Experiments were carried out in a scaled test room equipped with 9 vortex inlets uniformly distributed, exhaust outlets near the floor and 64 mannequins to simulate cooling loads. The study describes the air flow pattern observed and the relationship between the air velocity and the cooling load per m2 for mixed flow.
Experioments has been conducted with a ice thermal storage and a ceiling plenum. This ductless air supply system can be an alternative to the use of chilled water tubes. This system supplies air to the ceiling plenum chamber by mixing return air and low temperature air.
This method enables the determination of the influence of heating source characteristics on mean radiant temperature for composite room surfaces, as well as on thermal comfort and discomfort. A maximal possible thermal comfort area can be achieved with the determination of the best interactive influence between the building structure and its heating system.
The objective of this parametric study is to vary some parameters related to the conception of an atrium in order to analyse through CFD calculations their impact on the thermal behaviour during the critical summer conditions. The guideline produced are intended to help the architects especially at the first stage of the conception process.
A model of an UFAD system in a ventilated room is proposed , the room is ventilated with one heat source and one cooling vent as a two-layer stratification.
Measurements and CFD simulations are compared for 4 different ventilation systems using the air change index and a new ventilation parameter. It is shown the advantage of impinging jets
The paper deals with the CFD analysis performed for a family house residence, which is in the design phase : the aim was to test several concepts for heating ( floor heating, floor convectors, both systems) in terms of thermal comfort.
This paper deals with a 3D numerical study to assess the effectiveness of a displacement ventilation system to remove particulate pollutants, generated in the occupied zone of a room.
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