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Presentation of Paper on Indoor Comfort Conditions at SQU Conference

Presentation of Paper on Indoor Comfort Conditions at SQU Conference

Intermediate Report of the Assessment of Visual, Acoustic and Ethereal (Air Quality) Comfort Conditions in An Energy-Neutral Building in Muscat, Oman: Case Study of the GUtech EcoHaus

Hind Barghash1, Nikolaus Knebel2, Reem Al-Maskari1, Khaloud AlZaabi1

1

Department of Engineering

German University of Technology in Oman

PO Box 1816, Athaibah, PC 130, Sultanate of Oman hind.barghash@gutech.edu.om

2

Faculty of Architecture and Urban Planning German University of Technology in Oman

PO Box 1816, Athaibah, PC 130, Sultanate of Oman nikolaus.knebel@gutech.edu.om

reviewed, presented and published at The 1st National Conference on Civil and Architectural Engineering, Sultan Qaboos University, Department of Architectural Engineering, 26-28 March, 2018

Excerpt from the Paper:

In sum the findings from the research show that the indoor air quality is excellent, the visual comfort within the house is very good, while the acoustic comfort is problematic. It can be concluded that running the air supply of the house through the in-built filter of the air handling unit could be an option even for the periods in which the house would not need to be cooled mechanically, because this mode of operation guarantees a high quality of indoor air and thus ethereal comfort. It is also demonstrated that the orientation of the openings of the house as well as the external shadings create a diffuse and sufficient distribution of daylight, which creates visual comfort. The study shows that while the envelope creates sufficient acoustic insulation to the external noise source the internal noise sources from the machinery in the technical room lead to acoustic discomfort. The decision to accommodate the technical room in the centre of the ground floor - the darkest area within the circular plan of the house - is questionable. However, the main source of noise comes from hydronic pumps, which seem to be oversized. Through replacing these pumps with appropriately sized ones as well as insulating the door frame to the technical room with effective gaskets the acoustic problems can be mitigated, and acoustic comfort could be achieved.

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