Show simple item record

AuthorMahgoub, Ahmed Osama
AuthorGowid, Samer
AuthorGhani, Saud
Available date2024-03-13T09:01:26Z
Publication Date2020
Publication NameSustainable Cities and Society
ResourceScopus
ISSN22106707
URIhttp://dx.doi.org/10.1016/j.scs.2020.102182
URIhttp://hdl.handle.net/10576/53015
AbstractThe health and well-being of occupants of outdoor environments are largely affected by thermal stress, and therefore a global assessment is essential. Wet-bulb globe-temperature (WBGT) is used as a heat stress indicator and standard effective temperature (SET) is used as a thermal comfort index for assessment of thermal comfort in indoor and outdoor environments. These indices are usually evaluated point-wise which could be sufficient for relatively small spaces, but not suitable for large outdoor environments. This research proposes using a system combining climate sensors readings and thermal imaging to globally evaluate WBGT and SET values for outdoor environments. The algorithm derives air temperature from surface temperature values obtained using a thermal imaging camera. The obtained results were validated using readings of available sensors. Point-wise validation showed that the proposed methodology yielded results with a maximum average error of 11.4% compared to the average of point-wise local measurement for the WBGT, and an error of 8.5% for the SET. To minimize the error, an error reduction model based on artificial neural networks has been implemented. The error was further reduced to a maximum average error of 1.76% and 1.25% for WBGT and SET respectively.
SponsorThe work presented in this paper was supported by the A spire Zone Foundation [External grant number Q UEX-CENG-ASPIRE-11/12-7 ].
Languageen
PublisherElsevier
SubjectArtificial neural networks
Heat stress
Outdoor environments
SET
Thermal comfort
WBGT
TitleGlobal evaluation of WBGT and SET indices for outdoor environments using thermal imaging and artificial neural networks
TypeArticle
Volume Number60
dc.accessType Abstract Only


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record