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Faculté des Sciences appliquées
Faculté des Sciences appliquées
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The impact of ventilation systems on indoor air quality and the interaction of the occupants with these systems: A study conducted on Belgian residential buildings

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Khaleel, Ali Hazim ULiège
Promotor(s) : Attia, Shady ULiège
Date of defense : 22-Jan-2021 • Permalink : http://hdl.handle.net/2268.2/11117
Details
Title : The impact of ventilation systems on indoor air quality and the interaction of the occupants with these systems: A study conducted on Belgian residential buildings
Translated title : [fr] L’impact des systèmes de ventilation sur la qualité de l’air intérieur et l’interaction des occupants avec ces systèmes: Une étude menée sur des bâtimentsrésidentiels Belges
Author : Khaleel, Ali Hazim ULiège
Date of defense  : 22-Jan-2021
Advisor(s) : Attia, Shady ULiège
Committee's member(s) : Reiter, Sigrid ULiège
Elsen, Catherine ULiège
Brandt, Muriel 
Verbeeck, Griet 
Language : English
Number of pages : 158
Keywords : [en] Ethnography • Occupant behavior • Residential Buildings • Monitoring • Post-Occupancy Evaluation • User Satisfaction
Discipline(s) : Engineering, computing & technology > Architecture
Engineering, computing & technology > Energy
Target public : Researchers
Student
General public
Institution(s) : Université de Liège, Liège, Belgique
Degree: Master en ingénieur civil architecte, à finalité spécialisée en ingénierie architecturale et urbaine
Faculty: Master thesis of the Faculté des Sciences appliquées

Abstract

[en] Researches illustrated that people spend an average of 87% of their time enclosed in
buildings and more precisely 69% of their time at home (Klepeis, et al., 2001), and with
the current direction of the construction sector these building are becoming more and
more restricted in energy consumption.
As a consequence, numerous POE (post-occupancy evaluation) studies conducted
on these high-performance buildings highlight the fact that the reduction of energy
consumption has an effect on users’ indoor environmental comfort, such as the study
conducted by (Pastore & Andersen, 2019) illustrating that the satisfactory rate doesn’t
exceed 50% when it comes to IAQ (indoor air quality).
Furthermore, after reviewing the main factors contributing on air quality,
ventilation systems seem to be a critical factor. Therefore, this study was conducted to
assess the efficiency of different ventilation systems on IAQ using quantitative on-site
monitoring conducted on 5 residential buildings in Belgium.
As an additional contribution of the study, the interaction of the occupants with
these systems will be analyzed in a qualitative manner, regarding their operating mode,
maintenance frequency, and personal sensations based on the combination of in-depth
surveys and profiling (Bruxelles Environnement, 2017).
Based on the analysis conducted in the study, the results confirm that the
occupants behavioral pattern has more impact on the ventilation systems than the
maintenance factor, and this impact is proportional with the degree of the performance
of the constructions.
Mechanical ventilation systems proves to be the most efficient ventilation
system when it comes to an even distribution of the indoor air quality and satisfaction
rate. However, a calculation based on the occupants’ behavioral pattern must be
established to avoid miscalculations and reduce discomfort.
Finally, the research highlights the fact that the personal control on the ventilation
systems when it comes to the adaptation method (such as the openings and the free
cooling concept), has a major contribution on the occupants’ satisfaction rate.


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Author

  • Khaleel, Ali Hazim ULiège Université de Liège > Master ingé. civ. arch., à fin.

Promotor(s)

Committee's member(s)

  • Reiter, Sigrid ULiège Université de Liège - ULiège > Département ArGEnCo > Urbanisme et aménagement du territoire
    ORBi View his publications on ORBi
  • Elsen, Catherine ULiège Université de Liège - ULiège > Département ArGEnCo > Composition architecturale
    ORBi View his publications on ORBi
  • Brandt, Muriel
  • Verbeeck, Griet
  • Total number of views 45
  • Total number of downloads 8










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