A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Residential balanced ventilation and its impacts on indoor pressure, ventilation and IAQ
This paper presents results from a project on the assessment of the indoor air quality (IAQ) benefits that might accrue from the use of a balanced ventilation system. The study compared the whole-building pressure, IAQ and ventilation performance of energy recovery ventilation (exhausting from kitchen and bathrooms) with that of exhaust-only ventilation (continuous exhaust from master bathroom). The side-by-side comparisons included various indoor mixing scenarios (no mixing, partial mixing and continuous mixing) using the NRC's twin research houses. The side-by-side testing showed that balanced ventilation (energy recovery ventilation) was superior as a whole-house ventilation strategy, compared to unbalanced ventilation (single-point exhaust ventilation). It was superior because of the positive indoor pressure (1 to 3 Pa), higher air change rate (6% to 34%), uniform inter-zonal air flows, lower concentration of formaldehyde (by 37% to 70% in winter and 6% to 34% in summer), lower concentration of VOCs in winter (alpha-Pinene by 26% to 89% / Toluene-d8 (dTol) by 8% to 76%) and in summer (α-Pinene by 87% to 339% / Toluene-d8 by 45% to 88% / Heptane by 40% to 91% / Benzaldehyde by 35% to 406%), and as expected lower whole-house heating/cooling and ventilation energy consumption by up to 8.5%. ; Peer reviewed: Yes ; NRC publication: Yes
Residential balanced ventilation and its impacts on indoor pressure, ventilation and IAQ
This paper presents results from a project on the assessment of the indoor air quality (IAQ) benefits that might accrue from the use of a balanced ventilation system. The study compared the whole-building pressure, IAQ and ventilation performance of energy recovery ventilation (exhausting from kitchen and bathrooms) with that of exhaust-only ventilation (continuous exhaust from master bathroom). The side-by-side comparisons included various indoor mixing scenarios (no mixing, partial mixing and continuous mixing) using the NRC's twin research houses. The side-by-side testing showed that balanced ventilation (energy recovery ventilation) was superior as a whole-house ventilation strategy, compared to unbalanced ventilation (single-point exhaust ventilation). It was superior because of the positive indoor pressure (1 to 3 Pa), higher air change rate (6% to 34%), uniform inter-zonal air flows, lower concentration of formaldehyde (by 37% to 70% in winter and 6% to 34% in summer), lower concentration of VOCs in winter (alpha-Pinene by 26% to 89% / Toluene-d8 (dTol) by 8% to 76%) and in summer (α-Pinene by 87% to 339% / Toluene-d8 by 45% to 88% / Heptane by 40% to 91% / Benzaldehyde by 35% to 406%), and as expected lower whole-house heating/cooling and ventilation energy consumption by up to 8.5%. ; Peer reviewed: Yes ; NRC publication: Yes
Residential balanced ventilation and its impacts on indoor pressure, ventilation and IAQ
Ouazia, B. (author) / Won, D. (author) / Aubin, D. (author) / Arsenault, C. (author) / So, S. (author) / Yang, W. (author)
2019-11-23
doi:10.1088/1757-899X/609/3/032021
Article (Journal)
Electronic Resource
English
DDC:
690
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| British Library Online Contents | 2018
| British Library Online Contents | 2018
Editorial – Ventilation and indoor air quality in residential dwellings
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