Tahmasebi, F;
Wang, Y;
Cooper, E;
Godoy Shimizu, D;
Stamp, S;
Mumovic, D;
(2021)
Window operation behaviour and indoor air quality during lockdown: A monitoring-based simulation-assisted study in London.
Building Services Engineering Research and Technology
10.1177/01436244211017786.
(In press).
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Abstract
The Covid-19 outbreak has resulted in new patterns of home occupancy, the implications of which for indoor air quality (IAQ) and energy use are not well-known. In this context, the present study investigates 8 flats in London to uncover if during a lockdown, (a) IAQ in the monitored flats deteriorated, (b) the patterns of window operation by occupants changed, and (c) more effective ventilation patterns could enhance IAQ without significant increases in heating energy demand. To this end, one-year’s worth of monitored data on indoor and outdoor environment along with occupant use of windows has been used to analyse the impact of lockdown on IAQ and infer probabilistic models of window operation behaviour. Moreover, using on-site CO2 data, monitored occupancy and operation of windows, the team has calibrated a thermal performance model of one of the flats to investigate the implications of alternative ventilation strategies. The results suggest that despite the extended occupancy during lockdown, occupants relied less on natural ventilation, which led to an increase of median CO2 concentration by up to 300 ppm. However, simple natural ventilation patterns or use of mechanical ventilation with heat recovery proves to be very effective to maintain acceptable IAQ.
| Type: | Article |
|---|---|
| Title: | Window operation behaviour and indoor air quality during lockdown: A monitoring-based simulation-assisted study in London |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1177/01436244211017786 |
| Publisher version: | https://doi.org/10.1177%2F01436244211017786 |
| Language: | English |
| Additional information: | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
| Keywords: | Indoor air quality (iaq), occupant behaviour, window operation, building performance simulation, Covid 19 lockdown |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment > Bartlett School Env, Energy and Resources |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10128517 |
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