PROPOSALS Ventilation systems, passive and active cooling and air cleaning

Project proposals for MSc students and PhD students

Do you have ideas for a project or topic on natural, mechanical and hybrid ventilation systems, passive and active cooling and air cleaning?

Please feel free to contact Professor Alireza Afshari.

SBi, Aalborg University emphasized its focus on natural, mechanical and hybrid ventilation systems, passive and active cooling and air cleaning by attracting national and international students to the study of energy-efficient ventilation technology at the Department of Energy and Environment. The scientific challenges of energy-efficient ventilation techniques lie in developing new ventilation and control systems that can be adapted to changing user demands, while ensuring that the systems consume a minimum of energy.

Projects in ventilation systems

1. Low pressure drop air distribution system for existing and new buildings: Diffuse ceiling ventilation. A diffuse ceiling ventilation system is an air-distribution system where the space above a suspended ceiling (plenum) is used as a pressure chamber and outdoor air is supplied through the whole ceiling to the occupied zone.
2. Technical solutions for reducing indoor residential exposures to ultrafine particles from second-hand cigarette smoke infiltration. An emerging public issue in Denmark is passive smoking in residential environments where non-smokers are exposed to harmful smoke from neighbours. Smoke infiltrates one flat from another in various ways. The air infiltration rate between two flats in a multi-storey building depends on its construction, tightness and age. Technical solutions can be sealing of the floor in the receiving flat, improvement of ventilation systems in the building, etc.
3. Sustainable cooling and heating of office buildings: In buildings, the energy needed for the operation of cooling and heating systems accounts for a substantial part of the total energy consumption. One of the efficient technical solutions for buildings, which is able to reduce energy consumption, is the cooling beam system. The system reduces energy consumption in buildings and provides a comfortable indoor climate.
4. MSc-Project: Effect of air cleaners in conjunction with the use of rotary heat exchangers in residential buildings. The purpose of this project is to identify and adapt new air-cleaning technologies for implementation in HVAC systems with rotary heat exchangers. In order to reach this goal a new integrated air cleaning / heat recovery system will be developed supported by laboratory experiments; the system is intended for use in residential buildings.
5. MSc-Project: Sustainable cooling system: Cold air storage based on phase change material combined with free air cooling in office buildings.
   Reduction of the energy consumption in buildings is a main target area, since in Denmark 43% of all energy is consumed in buildings (Danish Energy Agency, 2009). This project analyses the cooling from the outside air as a renewable energy source for high temperature cooling in different climate and geographical conditions. The aim of the project is to investigate the potential use of PCM (inorganic and organic) for cold storage in combination with free air cooling as a source for high temperature cooling in office buildings.