Effect of natural ventilation mode on thermal comfort and ventilation performance: Full-scale measurement
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Description
Highlights • Temperature, velocity, and humidity were measured for single-sided and cross ventilation. • Cross ventilation provided thermal comfort for 70% of the time. • Single-sided ventilation provided adequate thermal conditions for 1% of the time. • Natural ventilation performance can be improved by appropriate building orientation. Abstract Natural ventilation can provide building occupants with thermal comfort and a healthy indoor environment. Among all the design related parameters that affect ventilation performance, ventilation mode (i.e. single-sided and cross ventilation) is perhaps the main one. The current study uses full-scale in-situ measurements to investigate the effect of ventilation mode on thermal comfort and ventilation performance of a high-rise case study unit. Two modes of natural ventilation, single-sided and cross ventilation, are investigated. Air velocity, temperature and relative humidity were measured for both ventilation modes on two consecutive days in summer. Indoor thermal conditions were evaluated using the extended Predicted Mean Vote (PMV) and Standard Effective Temperature (SET*) comfort models. In addition, the relationship between reference wind speed and internal airflow, airflow distribution, and the effect of wind direction on internal airflow were investigated for both single-sided and cross ventilation. Finally, the implications of the research outcomes on natural ventilation design are discussed. Indoor thermal conditions were found to be within the comfort zone for more than 70% of the time under cross ventilation operation while single-sided ventilation provided adequate thermal conditions for only 1% of the time. Results from this study highlight a significantly better performance of cross ventilation over single-sided ventilation.
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ID Code: | 111875 | ||||||||
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Item Type: | Contribution to Journal (Journal Article) | ||||||||
Refereed: | Yes | ||||||||
ORCID iD: |
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Measurements or Duration: | 16 pages | ||||||||
Keywords: | Cross ventilation, Full-scale experiment, High-rise residential, Natural ventilation, Single-sided ventilation, Thermal comfort | ||||||||
DOI: | 10.1016/j.enbuild.2017.09.061 | ||||||||
ISSN: | 0378-7788 | ||||||||
Pure ID: | 33243821 | ||||||||
Divisions: | Past > QUT Faculties & Divisions > Creative Industries Faculty Past > Institutes > Institute for Future Environments Past > QUT Faculties & Divisions > Science & Engineering Faculty |
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Copyright Owner: | Consult author(s) regarding copyright matters | ||||||||
Copyright Statement: | This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au | ||||||||
Deposited On: | 24 Sep 2017 22:49 | ||||||||
Last Modified: | 22 Jul 2024 20:02 |
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