Shuai, Yiling;
Altamirano, Hector;
(2020)
Vapour pressure excess as an indicator of mould growth.
In:
Proceedings of the 10th Masters Conference: People and Buildings.
nceub – Network for Comfort and Energy Use in Buildings: Online.
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Abstract
Moisture is the key factor for mould growth. Previous research has focused on the relationship between relative humidity and mould development. However, this parameter is defined by temperature and water vapour content, so it cannot reflect in isolation the effect of moisture on mould growth. After analysing vapour pressure excess (VPX) calculated from apartments in a student accommodation, we found that: (1) VPX in warm months cannot be used as indicators for mould growth; (2) Although there was not too much difference between weekday and weekend VPX, higher VPX was calculated on weekends; (3) The lowest VPX usually occurred in the afternoons, while the highest at night before bedtime; (4) On the coldest weekend, VPX in rooms with visible mould was higher than on rooms without mould, indicating an excess of moisture in contaminated rooms. Opening windows for ventilation in winter could reduce the possibility of condensation and mould growth.
| Type: | Proceedings paper |
|---|---|
| Title: | Vapour pressure excess as an indicator of mould growth |
| Event: | NCEUB Conferences, MC2020 Masters Conference People and Buildings, UK, 18 Dec 2020 |
| Open access status: | An open access version is available from UCL Discovery |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | mould growth, moisture, vapour pressure excess, relative humidity, ventilation |
| 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-pp.ucl.ac.uk/id/eprint/10163110 |
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