Building thermal bridge heat losses quantification by infrared thermography. Steady-state evaluation and uncertainty calculation

被引：2

作者：

Francois, A. ^{[1
,2
]}

Ibos, L. ^{[1
]}

Feuillet, V. ^{[1
]}

Meulemans, J. ^{[2
]}

机构：

[1] Univ Paris Est, CERTES, 61 Ave Gen Gaulle, F-94000 Creteil, France

[2] St Gobain Res Paris, 39 Quai Lucien Lefranc, F-93300 Aubervilliers, France

来源：

CLIMATE RESILIENT CITIES - ENERGY EFFICIENCY & RENEWABLES IN THE DIGITAL ERA (CISBAT 2019) | 2019年 / 1343卷

关键词：

D O I：

10.1088/1742-6596/1343/1/012171

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

This study deals with the measurement of thermal bridges properties in building walls. The methodology is tested on an experimental wall built in laboratory. The setup thermal bridges transmission coefficients psi and chi are measured in steady-state by infrared thermography. To do so, the thermal bridges impact factor I-tb is calculated. In the proposed method, the value of the surface emissivity is not required: only apparent temperatures are used. Experiments proved good reproducibility. Calculations of the uncertainties enabled to identify infrared measurements as the main sources of error.

引用

页数：6