Naslov
In-Situ Measurement and Evaluation of Thermal Transmittance Value by Means of Temperature-Based Method
(In-Situ Measurement and Evaluation of Thermal Transmittance Value by Means of Temperature-Based Method)

Autori
Domazetović, Mihaela ; Krstić, Hrvoje ; Obradović, Dino

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Sustainability and Automation in Smart Constructions / Rodrigues, H. ; Gaspar, F. ; Fernandes, P. ; Mateus, A. - : Springer, 2020, 411-414

ISBN
978-3-030-35532-6

Skup
International Conference on Automation Innovation in Construction (CIAC-2019)

Mjesto i datum
Leiria, Portugal, 07.11.2019. - 08.11.2019

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Thermal transmittance (U-value) ; Building technology ; In-situ measurement ; Thermal performance ; Temperature-based method (TBM)

Sažetak
Thermal transmittance (U-value) of building envelope is one of the most important parameters when assessing the actual energy performance of buildings and even slight changes in this value can significantly affect building energy demand. Over or underestimation of building wall U-values, mainly responsible for the energy losses through the building due to the largest share in surface area, can result in misguided assessments of energy refurbishment and implementation of energy- saving measures in terms of building technology selection, time, and costs. Therefore, to obtain data close to reality and to plan optimal refurbishment interventions, it is necessary to perform in- situ measurements for an accurate evaluation of U-value, i.e., thermal performance of buildings. In this paper, U- value assessment based on in-situ temperature measurements was applied using temperature-based method (TBM) and compared to theoretical values calculated following international standards. The viability of the method has been analyzed under different measurement conditions and for two types of walls before and after retrofitting. The findings presented in the study show a very good agreement between measured U-values and estimated ones for uninsulated walls, while further studies are still needed for insulated walls.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo

POVEZANOST RADA