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Yapı duvarlarının ısıl yayınırlık ölçümleri için standart bir laboratuvar test yönteminin geliştirilmesi: Kızılötesi ısıl görüntüleme ve korumalı sıcak kutunun birlikte kullanımı    
Yazarlar (3)
Dr. Öğr. Üyesi Rukiye KOÇKAR TUĞLA Dr. Öğr. Üyesi Rukiye KOÇKAR TUĞLA
Kastamonu Üniversitesi, Türkiye
Ayşe Duman
Orta Doğu Teknik Üniversitesi, Türkiye
Salih Yazıcıoğlu
Gazi Üniversitesi, Türkiye
Devamını Göster
Özet
The thermal diffusivity value of a building wall can be calculated theoretically by using the thermophysical properties of its materials listed in standards and literature. In these lists, building materials in the same category can be defined by different thermal properties; therefore, the theoretically-calculated thermal diffusivity values can be misleading. In this study, an experimental setup was developed that can directly measure the thermal diffusivity (α) value of building walls by the combined use of infrared thermography and guarded hot box methods. A 19cm-thick wall sample made of lightweight concrete block with pumice aggregate and mortar was prepared; this wall is positioned between a controlled warm ambient on its one side and a cold ambient on the other side, where its surfaces were monitored by sequential IR imaging. The thermal diffusivity value of the sample wall was calculated using the data showing temperature change versus time and the relevant theoretical equation. The reference thermal diffusivity value (αREF) of the sample wall, calculated using thermal properties measured by standard laboratory tests, is 3.4014x10-7 m2/s. The thermal diffusivity (αIRT) of the same wall, measured with the proposed IRT-GHB experimental setup, is 3.3813x10-7 m2/s. The value measured with that new setup is similar to the reference thermal diffusivity value. The results show that the new experimental setup can directly measure the thermal diffusivity of a wall. Compared to the existing ones, the proposed experimental setup presents a measurement technique that saves time and sets the basis of a scientific, practical, and more economical …
Anahtar Kelimeler
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale
Dergi Adı Gazi Üniversitesi Mühendislik-Mimarlık Fakültesi Dergisi
Dergi ISSN 1300-1884 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler SCI-Expanded
Dergi Grubu Q3
Makale Dili Türkçe
Basım Tarihi 01-2025
Cilt No 40
Sayı 1
Sayfalar 529 / 540
Doi Numarası 10.17341/gazimmfd.1296046
Makale Linki http://dx.doi.org/10.17341/gazimmfd.1296046