Infrared thermography application for in-situ determination of the building envelope thermal performance
Abstract During the phase of creating energy audit documentation, many calculations are needed when evaluating the thermal performance of building envelope components due to a large number of distinct components and junctions. Several computer programs are available to assess buildings’ energy consu...
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Published in | Journal of physics. Conference series Vol. 2654; no. 1; pp. 12122 - 12129 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
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Abstract | Abstract
During the phase of creating energy audit documentation, many calculations are needed when evaluating the thermal performance of building envelope components due to a large number of distinct components and junctions. Several computer programs are available to assess buildings’ energy consumption, using the thermal performance of building envelope elements as input data. These thermal performances are often provided with varying degrees of accuracy, typically only for the current field of the component, without considering the impact of thermal bridges. However, when using linear heat transfer coefficients ψ, the details provided in thermal bridges’ atlases do not cover all the case studies encountered in the current design, which often requires approximate details. In some cases, the technical documentation of the building is unavailable, which leads to various assumptions about the detailing of the building envelope and a non-realistic picture of the energy performance of the assessed building. The paper presents a methodology and accompanying software called THERMOG that evaluates the thermal performance of the building envelope under actual operating conditions using aerial and terrestrial thermography methods. The paper presents initial findings from some case studies used to calibrate the developed methodology. |
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AbstractList | During the phase of creating energy audit documentation, many calculations are needed when evaluating the thermal performance of building envelope components due to a large number of distinct components and junctions. Several computer programs are available to assess buildings’ energy consumption, using the thermal performance of building envelope elements as input data. These thermal performances are often provided with varying degrees of accuracy, typically only for the current field of the component, without considering the impact of thermal bridges. However, when using linear heat transfer coefficients ψ, the details provided in thermal bridges’ atlases do not cover all the case studies encountered in the current design, which often requires approximate details. In some cases, the technical documentation of the building is unavailable, which leads to various assumptions about the detailing of the building envelope and a non-realistic picture of the energy performance of the assessed building. The paper presents a methodology and accompanying software called THERMOG that evaluates the thermal performance of the building envelope under actual operating conditions using aerial and terrestrial thermography methods. The paper presents initial findings from some case studies used to calibrate the developed methodology. Abstract During the phase of creating energy audit documentation, many calculations are needed when evaluating the thermal performance of building envelope components due to a large number of distinct components and junctions. Several computer programs are available to assess buildings’ energy consumption, using the thermal performance of building envelope elements as input data. These thermal performances are often provided with varying degrees of accuracy, typically only for the current field of the component, without considering the impact of thermal bridges. However, when using linear heat transfer coefficients ψ, the details provided in thermal bridges’ atlases do not cover all the case studies encountered in the current design, which often requires approximate details. In some cases, the technical documentation of the building is unavailable, which leads to various assumptions about the detailing of the building envelope and a non-realistic picture of the energy performance of the assessed building. The paper presents a methodology and accompanying software called THERMOG that evaluates the thermal performance of the building envelope under actual operating conditions using aerial and terrestrial thermography methods. The paper presents initial findings from some case studies used to calibrate the developed methodology. |
Author | Rădulescu, M Moga, I Moldovan, I Șoimoșan, T Rădulescu, A Moga, L Iancu, I |
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Cites_doi | 10.1016/j.jobe.2020.101637 10.1016/j.enbuild.2017.06.040 10.1016/j.apenergy.2011.05.014 10.1016/j.buildenv.2018.09.050 10.1016/j.enbuild.2010.07.010 10.1016/j.enbuild.2021.111754 10.1016/j.rser.2014.07.188 |
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References | Ministry of Regional Development (JPCS_2654_1_012122bib10) Fokaides (JPCS_2654_1_012122bib9) 2011; 88 Rakha (JPCS_2654_1_012122bib4) 2022; 259 Albatici (JPCS_2654_1_012122bib6) 2010; 42 Benz (JPCS_2654_1_012122bib11) 2021; 250 Fox (JPCS_2654_1_012122bib3) 2014; 40 Tejedor (JPCS_2654_1_012122bib5) 2017; 151 Sadhukhan (JPCS_2654_1_012122bib7) 2020; 32 Ministry of Regional Development and Public Administration (JPCS_2654_1_012122bib8) 2016 Nardia (JPCS_2654_1_012122bib2) 2018; 146 Moga (JPCS_2654_1_012122bib1) 2021; 12 |
References_xml | – volume: 32 start-page: 101637 year: 2020 ident: JPCS_2654_1_012122bib7 article-title: Estimating surface temperature from thermal imagery of buildings for accurate thermal transmittance (U-value): A machine learning perspective publication-title: J. of Build. Eng. doi: 10.1016/j.jobe.2020.101637 contributor: fullname: Sadhukhan – volume: 151 start-page: 187 year: 2017 ident: JPCS_2654_1_012122bib5 article-title: Quantitative internal infrared thermography for determining in-situ thermal behaviour of facades publication-title: En. & Build. doi: 10.1016/j.enbuild.2017.06.040 contributor: fullname: Tejedor – volume: 88 start-page: 4358 year: 2011 ident: JPCS_2654_1_012122bib9 article-title: Application of infrared thermography for the determination of the overall heat transfer coefficient (U-Value) in building envelopes publication-title: Appl. En doi: 10.1016/j.apenergy.2011.05.014 contributor: fullname: Fokaides – volume: 250 start-page: 2177 year: 2021 ident: JPCS_2654_1_012122bib11 article-title: Framework for a UAS-based assessment of energy performance of buildings publication-title: En. & Build. contributor: fullname: Benz – volume: 146 start-page: 190 year: 2018 ident: JPCS_2654_1_012122bib2 article-title: Quantification of heat energy losses through the building envelope: A state-of-the-art analysis with critical and comprehensive review on infrared thermography publication-title: Build. and Env. doi: 10.1016/j.buildenv.2018.09.050 contributor: fullname: Nardia – volume: 42 start-page: 2177 year: 2010 ident: JPCS_2654_1_012122bib6 article-title: Infrared thermovision technique for the assessment of thermal transmittance value of opaque building elements on site publication-title: En. & Build. doi: 10.1016/j.enbuild.2010.07.010 contributor: fullname: Albatici – volume: 12 start-page: 1 year: 2021 ident: JPCS_2654_1_012122bib1 article-title: Thermo-Energy Performance of Lightweight Steel Framed Constructions: A Case Study publication-title: Buildings contributor: fullname: Moga – volume: 259 start-page: 111754 year: 2022 ident: JPCS_2654_1_012122bib4 article-title: Building envelope anomaly characterization and simulation, using drone time-lapse thermography publication-title: En. & Build. doi: 10.1016/j.enbuild.2021.111754 contributor: fullname: Rakha – ident: JPCS_2654_1_012122bib10 article-title: Public Administration and European Funds 2017 Order 2641 regarding the modification and completion of the technical regulation. In Methodology for Calculating the Energy Performance of Buildings; Approved by the Order of the Minister of Transport, Construction and Tourism no. 157/2007 contributor: fullname: Ministry of Regional Development – start-page: 107 year: 2016 ident: JPCS_2654_1_012122bib8 article-title: Order 386 for the modification and completion of the Technical Regulation Regarding the Thermotechnical Calculation of the Construction Elements of the Buildings; Indicative C contributor: fullname: Ministry of Regional Development and Public Administration – volume: 40 start-page: 296 year: 2014 ident: JPCS_2654_1_012122bib3 article-title: Thermography methodologies for detecting energy related building defects publication-title: Ren. and Sust. En. Rev. doi: 10.1016/j.rser.2014.07.188 contributor: fullname: Fox |
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During the phase of creating energy audit documentation, many calculations are needed when evaluating the thermal performance of building envelope... During the phase of creating energy audit documentation, many calculations are needed when evaluating the thermal performance of building envelope components... |
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SubjectTerms | Aerial thermography Building envelopes Case studies Documentation Energy consumption Heat transfer coefficients Infrared imaging Performance evaluation Physics Software Technical information Thermal bridges |
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Title | Infrared thermography application for in-situ determination of the building envelope thermal performance |
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