Project

Physics of diffuse ventilation - buoyancy convection performance

Publisher

Supervisor

Location

Greater Copenhagen area

Diffuse ventilation is a novel type of ventilation where the fresh air is supplied over a large (ceiling) surface. High-impulse inlet jets, which would otherwise generate draught sensations, are avoided, ducting is saved, the energy consumption is lowered and in general the adabtability of the ventilation system to accomodate different types of load situations is increased.

However, the functioning of diffuse ventilation is ill-understood because it relies on natural buoyancy forces from the thermal sources in the room rather than forced convection from the fan. The project should investigate in extensive detail through CFD simulations and/or experiments how buoyancy affects the mixing and stratification and the performance of diffuse ventilation  in different scenarios, e.g. different floor plans, ceiling layout, strength of thermal sources, inlet temperature etc.

It is envisaged that the performance can be generalized through a study of Archimedes number and a design guideline be developed using the empirical data.

For an experimental project, two master students are preferred.

In collaboration with

Saint-Gobain AirMore

Requirements

Profiency in CFD and/or experimental practices

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Contact

Company / Organization

DTU Byg

Name

Christian Anker Hviid

Position

Lektor

Mail

cah@byg.dtu.dk

Supervisor info

MSc in Civil Engineering

Supervisor

Christian Anker Hviid

ECTS credits

30 - 35

Type

MSc thesis

Must be completed

11124; 11222

MSc in Architectural Engineering

Supervisor

Christian Anker Hviid

ECTS credits

30 - 35

Type

MSc thesis

Must be completed

11124; 11222

MSc in Sustainable Energy

Supervisor

Christian Anker Hviid

ECTS credits

30 - 35

Type

MSc thesis

Must be completed

11124; 11222

Technical University of Denmark

For almost two centuries DTU, Technical University of Denmark, has been dedicated to fulfilling the vision of H.C. Ørsted – the father of electromagnetism – who founded the university in 1829 to develop and create value using the natural sciences and the technical sciences to benefit society.


Today, DTU is ranked as one of the foremost technical universities in Europe, continues to set new records in the number of publications, and persistently increases and develops our partnerships with industry, and assignments accomplished by DTU’s public sector consultancy.

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Anker Engelunds Vej 1
Bygning 101A
2800 Kgs. Lyngby

Denmark



Tlf. (+45) 45 25 25 25

CVR-nr. 30 06 09 46

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