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FLUBAT
FunderFrench National Research Agency (ANR)
Funder Contribution €792,869.00
DurationFrom 01 Mar 2013
Project codeANR-12-VBDU-0010
Open Access mandatePublications: NoResearch data: No
Identifiers
Description
The buildings of tomorrow will be, at least, energy-saving Buildings. The important reduction of the necessary powers in this type of buildings raises the crucial problem of the spatial distribution of the low flow rates of air which we will have to be injected in the rooms of life. The air quality and the thermal comfort will be strongly threatened if the problem of the mixture of the air injected into the ambient air is not effectively controlled. A typical finalized technological solution which allows a consequent improvement of the mixture was proposed within the framework of the project ANR-PREBAT 2005 "INDUBAT". It will be of use as base to this project. It is about an innovating diffuser with high induction based on the passive control of the mixture of the jet air in the ambient air. This is obtained, in particular, by the use of original geometries integrated into the conception of the diffuser. As for the other devices, the performance is qualified in Laboratory, in configuration of free and isothermal jet today what is not a common situation in the building. In a realistic building situation, the qualification of the driving flows is inevitably going to ask the question of the interaction between the jet and the room in which is going to develop a 3D low speed flow. Furthermore, the coupling air jet / internal thermal flow field is hardly qualified while the control of the ambient conditions underlies an effort in the direction of a control of the driving flow. The absence of an effective tool of diagnosis of the in the room makes then difficult the analysis of the performance of these new technologies in real situations. To remedy it, we suggest developing a new experimental means of characterization of the 3D internal thermal flow field: a 3D tracking of particles (3D Particle tracking Velocimetry) by using different types of cameras to obtain a description of the whole dynamics in the room, so allowing the qualification of innovative solutions. The second stage of this project will consist in exploiting the 3D PTV in the case of the diffuser. The aim is to understand the interaction of the jet of this diffuser with the room. A set of 12 configurations of injection will be analyzed, producing a knowledge which will be given to the simulation community working in the field of the thermal of the building.
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The buildings of tomorrow will be, at least, energy-saving Buildings. The important reduction of the necessary powers in this type of buildings raises the crucial problem of the spatial distribution of the low flow rates of air which we will have to be injected in the rooms of life. The air quality and the thermal comfort will be strongly threatened if the problem of the mixture of the air injected into the ambient air is not effectively controlled. A typical finalized technological solution which allows a consequent improvement of the mixture was proposed within the framework of the project ANR-PREBAT 2005 "INDUBAT". It will be of use as base to this project. It is about an innovating diffuser with high induction based on the passive control of the mixture of the jet air in the ambient air. This is obtained, in particular, by the use of original geometries integrated into the conception of the diffuser. As for the other devices, the performance is qualified in Laboratory, in configuration of free and isothermal jet today what is not a common situation in the building. In a realistic building situation, the qualification of the driving flows is inevitably going to ask the question of the interaction between the jet and the room in which is going to develop a 3D low speed flow. Furthermore, the coupling air jet / internal thermal flow field is hardly qualified while the control of the ambient conditions underlies an effort in the direction of a control of the driving flow. The absence of an effective tool of diagnosis of the in the room makes then difficult the analysis of the performance of these new technologies in real situations. To remedy it, we suggest developing a new experimental means of characterization of the 3D internal thermal flow field: a 3D tracking of particles (3D Particle tracking Velocimetry) by using different types of cameras to obtain a description of the whole dynamics in the room, so allowing the qualification of innovative solutions. The second stage of this project will consist in exploiting the 3D PTV in the case of the diffuser. The aim is to understand the interaction of the jet of this diffuser with the room. A set of 12 configurations of injection will be analyzed, producing a knowledge which will be given to the simulation community working in the field of the thermal of the building.
