Abstract
The thermal transmittance (U-value) of the vertical opaque building envelope plays a key role for the evaluation of the thermal performance of a structure. In order to speed up the assessment procedure and to investigate wider portions of buildings directly in situ, new methods based on the use of quantitative infrared thermography have been proposed during the last years. Although the studies agree about the influence of the operative conditions, a detailed report, based on measurements effected on a large wall in a controlled environment and at different boundary conditions, is still missing in literature. The aim of this work is to assess the validity of thermographic methods by using different operative conditions in a controlled environment. The results obtained by different IR methods in a Guarded Hot Box have been compared with heat flow meter measurements and theoretical values.
| Original language | English |
|---|---|
| Pages (from-to) | 211-217 |
| Number of pages | 7 |
| Journal | Energy and Buildings |
| Volume | 122 |
| DOIs | |
| Publication status | Published - 15 Jun 2016 |
| Externally published | Yes |
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Keywords
- Experimental measurements
- Guarded Hot Box
- Heat flow meter
- Infrared thermography
- Thermal transmittance
ASJC Scopus subject areas
- Civil and Structural Engineering
- Building and Construction
- Mechanical Engineering
- Electrical and Electronic Engineering
Cite this
U-value assessment by infrared thermography : A comparison of different calculation methods in a Guarded Hot Box. / Nardi, Iole; Paoletti, Domenica; Ambrosini, Dario; De Rubeis, Tullio; Sfarra, Stefano.
In: Energy and Buildings, Vol. 122, 15.06.2016, p. 211-217.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - U-value assessment by infrared thermography
T2 - A comparison of different calculation methods in a Guarded Hot Box
AU - Nardi, Iole
AU - Paoletti, Domenica
AU - Ambrosini, Dario
AU - De Rubeis, Tullio
AU - Sfarra, Stefano
PY - 2016/6/15
Y1 - 2016/6/15
N2 - The thermal transmittance (U-value) of the vertical opaque building envelope plays a key role for the evaluation of the thermal performance of a structure. In order to speed up the assessment procedure and to investigate wider portions of buildings directly in situ, new methods based on the use of quantitative infrared thermography have been proposed during the last years. Although the studies agree about the influence of the operative conditions, a detailed report, based on measurements effected on a large wall in a controlled environment and at different boundary conditions, is still missing in literature. The aim of this work is to assess the validity of thermographic methods by using different operative conditions in a controlled environment. The results obtained by different IR methods in a Guarded Hot Box have been compared with heat flow meter measurements and theoretical values.
AB - The thermal transmittance (U-value) of the vertical opaque building envelope plays a key role for the evaluation of the thermal performance of a structure. In order to speed up the assessment procedure and to investigate wider portions of buildings directly in situ, new methods based on the use of quantitative infrared thermography have been proposed during the last years. Although the studies agree about the influence of the operative conditions, a detailed report, based on measurements effected on a large wall in a controlled environment and at different boundary conditions, is still missing in literature. The aim of this work is to assess the validity of thermographic methods by using different operative conditions in a controlled environment. The results obtained by different IR methods in a Guarded Hot Box have been compared with heat flow meter measurements and theoretical values.
KW - Experimental measurements
KW - Guarded Hot Box
KW - Heat flow meter
KW - Infrared thermography
KW - Thermal transmittance
UR - http://www.scopus.com/inward/record.url?scp=84966397556&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84966397556&partnerID=8YFLogxK
U2 - 10.1016/j.enbuild.2016.04.017
DO - 10.1016/j.enbuild.2016.04.017
M3 - Article
VL - 122
SP - 211
EP - 217
JO - Energy and Buildings
JF - Energy and Buildings
SN - 0378-7788
ER -