A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Modelling the impact of multizone airleakage on ventilation performance and indoor air quality in low-energy homes
Abstract This study examined the impacts of detailed envelope airleakage distribution and internal partition walls airleakage on the ventilation performance of a detached low-energy house. We used a multizone modelling approach based on CO2, humidity and formaldehyde to calculate indoor air quality (IAQ) performance indicators. Impacts of uneven envelope airleakage distribution on selected IAQ performance indicators are generally significant whatever ventilation system is present. Impacts of internal partition wall airleakage are considerably greater with exhaust-only ventilation but can be high on some IAQ performance indicators with balanced ventilation. We also conclude that it is relevant to use detailed data on envelope airleakage distribution and internal partition wall airleakage to precisely assess ventilation performance on IAQ. This work highlights the need of regulations or labels requiring performance-based approaches for ventilation at the design stage of buildings, calculating the relevant IAQ performance indicators. In such multizone modelling approaches, detailed airleakage distributions, on envelope and on internal partition walls, should be taken into account.
Modelling the impact of multizone airleakage on ventilation performance and indoor air quality in low-energy homes
Abstract This study examined the impacts of detailed envelope airleakage distribution and internal partition walls airleakage on the ventilation performance of a detached low-energy house. We used a multizone modelling approach based on CO2, humidity and formaldehyde to calculate indoor air quality (IAQ) performance indicators. Impacts of uneven envelope airleakage distribution on selected IAQ performance indicators are generally significant whatever ventilation system is present. Impacts of internal partition wall airleakage are considerably greater with exhaust-only ventilation but can be high on some IAQ performance indicators with balanced ventilation. We also conclude that it is relevant to use detailed data on envelope airleakage distribution and internal partition wall airleakage to precisely assess ventilation performance on IAQ. This work highlights the need of regulations or labels requiring performance-based approaches for ventilation at the design stage of buildings, calculating the relevant IAQ performance indicators. In such multizone modelling approaches, detailed airleakage distributions, on envelope and on internal partition walls, should be taken into account.
Modelling the impact of multizone airleakage on ventilation performance and indoor air quality in low-energy homes
Guyot, Gaëlle (author) / Geoffroy, Hugo (author) / Ondarts, Michel (author) / Migne, Léna (author) / Bobee, Mallory (author) / Gonze, Evelyne (author) / Woloszyn, Monika (author)
Building Simulation ; 12 ; 1141-1159
2019-06-26
19 pages
Article (Journal)
Electronic Resource
English
indoor air quality , ventilation , house , performance , airleakage , infiltration , formaldehyde , indicator Engineering , Building Construction and Design , Engineering Thermodynamics, Heat and Mass Transfer , Atmospheric Protection/Air Quality Control/Air Pollution , Monitoring/Environmental Analysis
Multizone air leakage measurements and interactions with ventilation flows in low-energy homes
| British Library Online Contents | 2016
Multizone air leakage measurements and interactions with ventilation flows in low-energy homes
| British Library Online Contents | 2016
Multizone air leakage measurements and interactions with ventilation flows in low-energy homes
| Online Contents | 2016