Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor | Department of Building Services Engineering | en_US |
| dc.contributor.advisor | Chow, W. K. (BSE) | - |
| dc.creator | Sun, Qian | - |
| dc.identifier.uri | https://theses.lib.polyu.edu.hk/handle/200/9104 | - |
| dc.language | English | en_US |
| dc.publisher | Hong Kong Polytechnic University | - |
| dc.rights | All rights reserved | en_US |
| dc.title | Wind effects on atrium smoke exhaust by ceiling vent | en_US |
| dcterms.abstract | According to statistics, more than 80 percent of death related to smoke. In recent years, atriums in growing numbers are built for alleviating the construction pressure. When fire occurs, smoke would rise up to high floors easily and cause another fire, because atriums are large space buildings and lack of compartmentalization. When an atrium is located in crowded urban areas, there are many supertall buildings around it. If a strong wind blows toward a building, performance of the natural vents may be affected. Wind might push the smoke into the atrium which causes smoke cannot be exhausted from the static vents. The model with difference distance between building and vertical wall was examined. At the same time, the scenario on an atrium without an adjacent vertical wall was also be texted. Results on the whole building pressure distribution, smoke velocity change and smoke exhaust rate across the vent with different wind speeds are compared. In most instances, wind would have positive effect on the performance of smoke exhaust. And wind velocity and the distance between the vertical wall and the atrium. However, in a particular situation, wind speed of 20m/s under a 3MW fire, smoke cannot be exhausted by the natural vent. | en_US |
| dcterms.extent | 75 pages : color illustrations | en_US |
| dcterms.isPartOf | PolyU Electronic Theses | en_US |
| dcterms.issued | 2017 | en_US |
| dcterms.educationalLevel | M.Eng. | en_US |
| dcterms.educationalLevel | All Master | en_US |
| dcterms.LCSH | Hong Kong Polytechnic University -- Dissertations | en_US |
| dcterms.LCSH | Atriums | en_US |
| dcterms.LCSH | Air flow | en_US |
| dcterms.LCSH | Atrium buildings -- Fires and fire prevention | en_US |
| dcterms.accessRights | restricted access | en_US |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 991021959948803411.pdf | For All Users (off-campus access for PolyU Staff & Students only) | 1.62 MB | Adobe PDF | View/Open |
Copyright Undertaking
As a bona fide Library user, I declare that:
- I will abide by the rules and legal ordinances governing copyright regarding the use of the Database.
- I will use the Database for the purpose of my research or private study only and not for circulation or further reproduction or any other purpose.
- I agree to indemnify and hold the University harmless from and against any loss, damage, cost, liability or expenses arising from copyright infringement or unauthorized usage.
By downloading any item(s) listed above, you acknowledge that you have read and understood the copyright undertaking as stated above, and agree to be bound by all of its terms.
Please use this identifier to cite or link to this item:
https://theses.lib.polyu.edu.hk/handle/200/9104