Full metadata record
DC FieldValueLanguage
dc.contributorDepartment of Building Services Engineeringen_US
dc.creatorTsang, Hon-wai-
dc.publisherHong Kong Polytechnic University-
dc.rightsAll rights reserveden_US
dc.titleOn-site environmental study for public residential buildings in Hong Kongen_US
dcterms.abstractSince the incidence of Severe Acute Respiratory Syndrome (SARS) outbreak among residential buildings in 2003 has raised public awareness regarding healthy and safe indoor environment, a challenge has been introduced to local engineers who have to balance between the maximum profit and the acceptable built environment for a development design. Based on the design requirements specified in the building ordinance and voluntary schemes, the utilization of natural resources especially air ventilation is encouraged even for enhancing comfort and reducing energy use. The Housing Authority of the Hong Kong SAR Government has adopted the Air Ventilation Assessment (AVA) as essential design considerations for all major development proposals from 2006. To serve this purpose, Computational Fluid Dynamic (CFD) simulations have become a common cost effective tool to optimize the design from different building configurations. However, the results may not be accurate before any validation. The simulation could be performed comprehensively to minimize the error. This study employed CFD simulation and on-site measurements to evaluate the built environment of a public housing estate under summer and winter typical weather conditions for finding the appropriate ways to achieve more comfort environment for local residents. It intends to improve the outdoor and indoor environmental conditions of the HA development in a high-density urban area. To improve the reliability of measurements, two sets of measurements were conducted in two consecutive months in each season. Not surprisingly, disagreements existed due to limitation of CFD simulations and uncertainty of measured results. Nevertheless, this study attempted to integrate the real data into the CFD simulation to refine the AVA. In this study, the simulation was remodeled to verify the original design and, with possible adjustment, to propose recommendations for future designs. The implementation of Air Ventilation Assessment system could help plan and control the wind environment in Hong Kong. Before it becomes mandatory, extensive testing and validation should be commenced to provide evidence and definitive benchmark standards. Although the effectiveness of the AVA for urban planning remains controvertible, the potential implementation of this practice involving innovative design would be worth further investigation.en_US
dcterms.extentx, 95 leaves : ill. (some col.) ; 30 cm.en_US
dcterms.educationalLevelAll Masteren_US
dcterms.LCSHAir flow -- Measurement.en_US
dcterms.LCSHDwellings -- Heating and ventilation -- China -- Hong Kong.en_US
dcterms.LCSHNatural ventilation.en_US
dcterms.LCSHBuilding sites -- Environmental aspects.en_US
dcterms.LCSHHong Kong Polytechnic University -- Dissertationsen_US
dcterms.accessRightsrestricted accessen_US

Files in This Item:
File Description SizeFormat 
b2451598x.pdfFor All Users (off-campus access for PolyU Staff & Students only)7.33 MBAdobe PDFView/Open

Copyright Undertaking

As a bona fide Library user, I declare that:

  1. I will abide by the rules and legal ordinances governing copyright regarding the use of the Database.
  2. 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.
  3. 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.

Show simple item record

Please use this identifier to cite or link to this item: https://theses.lib.polyu.edu.hk/handle/200/6239