Infrared thermography (IRT) applications for building diagnostics: A review

Kylili, Angeliki; Fokaides, Paris A.; Christou, Petros; Kalogirou, Soteris A.

doi:10.1016/j.apenergy.2014.08.005

Cited by 411 publications

(219 citation statements)

References 104 publications

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“…The first infrared thermography (IRT) systems were used for military purposes, during the First World War. In the building sector, the first applications started in the early 1980s, mostly for energy saving and insulation issues in building diagnostics [1]. With the passage of time, there was an evolution of the various thermographic systems used, in terms of sensitivity, applicability, image processing, etc.…”

Section: Introductionmentioning

confidence: 99%

Multispectral Applications of Infrared Thermography in the Diagnosis and Protection of Built Cultural Heritage

et al. 2018

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Infrared thermography (IRT) is a powerful non contact imaging technique, appropriate for the protection of cultural heritage. The National Technical University of Athens research team (scientist responsible: A. Moropoulou), started to use this technique in the early 1990s, in all stages of a conservation project, from decay diagnosis to assessment of conservation interventions and monitoring. The monuments investigated with the aid of this technique belonged to different historical periods, dating from antiquity to modern times. The main products of IRT, thermal maps of surfaces, were evaluated and exploited, based on the demands, special needs and requirements of each application. Additionally, in laboratory scale, many IRT measurements were performed in order to investigate the applicability and limitations of this technique for measuring a material's thermophysical properties. All these data and accumulated knowledge and experience contributed to a set of recommendations, which enabled us to compile a protocol for the application of this technique in a more standardized way. Moreover, the added value of this practice permitted the successful application and integration of this technique in large-scale conservation projects, such as the Pythian Apollo Temple in Acropolis of Rhodes, during the diagnostic study phase, or at the Holy Aedicule, of the Holy Selphuchre in Jerusalem, during the rehabilitation works.

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Section: Introductionmentioning

confidence: 99%

Multispectral Applications of Infrared Thermography in the Diagnosis and Protection of Built Cultural Heritage

et al. 2018

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“…The infrared thermography is widely used in various research areas. This statement is confirmed by references [17][18][19][20][21][22], review papers [23,24] and works related to the assessment of this method [25][26][27]. In particular, the favourable features include as follows (for this method):…”

Section: Principles Of Thermographic Testing Of Thermal Power Installmentioning

confidence: 49%

The conditions for thermographic testing of thermal power engineering installations

Łopata

Kocot²

2017

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Thermographic cameras are becoming increasingly popular in all kinds of diagnostic testing aiming to assess the technical state of thermal power engineering machinery, equipment and installations. The cameras provide thermograms that enable identification of various irregularities, including thermal bridges. However, it can be observed that their accuracy and reliability depend substantially on the conditions in which tests are carried out. Industrial thermographic testing, especially in thermal power engineering, is one of the most difficult procedures. Apart from the advantages of this particular technique, this paper presents an analysis of the effect of the conditions in which tests are performed on the obtained results. Attention is drawn to parameters characterizing the environment and the tested element surface, such as emissivity, reflected temperature, distance between the camera and the object, air temperature, etc. The sources of errors in the testing and in the interpretation of thermograms are indicated. Methods are also presented that enable elimination of irregularities, which improves the accuracy of the final results.Keywords: engineering installations, thermographic testing, thermogram, emissivity, reflected temperature Streszczenie Kamery termowizyjne są coraz częściej wykorzystywane w różnego rodzaju badaniach diagnostycznych mających na celu ocenę stanu technicznego maszyn, urządzeń i instalacji eksploatowanych w energetyce cieplnej. Uzyskiwane za ich pomocą termogramy pozwalają identyfikować różne nieprawidłowości, a także mostki termiczne. Można jednak zauważyć, że w badaniach termowizyjnych istotne znaczenie mają warunki, w jakich są one przeprowadzane. Te przemysłowe, w tym szczególnie w energetyce cieplnej, należy zaliczyć do trudnych. W artykule, obok wskazania zalet takich badań, przedstawiono analizę wpływu warunków, w jakich są one realizowane. Zwrócono uwagę na parametry charakteryzujące otoczenie i powierzchnię badanego elementu, jak np.: współczynnik emisyjności, temperatura odbicia, odległość kamery od obiektu, temperatura powietrza. Wskazano na źródła błędów podczas wykonywania tych badań i interpretacji termogramów. Podano sposoby eliminacji nieprawidłowości, co zwiększa dokładność wyników końcowych.Słowa kluczowe: instalacje energetyczne, badania termowizyjne, termogram, emisyjność, temperatura odbicia 180

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“…Currently, non-destructive testing methods, such as an air leakage test, a co-heating test, infrared thermography, and heat flux measurements, are used to detect the area where energy leakage takes place [2][3][4]. Among non-destructive testing methods, infrared thermography is used as a preliminary investigation tool because it does not cause physical damage during the exploratory investigation.…”

Section: Introductionmentioning

confidence: 99%

Automatic 3D Thermal Modeling Using Thermal Data Obtained from Unknown Viewpoints

Lee

Son

Kim

2015

Proceedings of the International Symposium on Automation and Robotics in Construction (IAARC)

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There has been an increasing need for diagnostic methods to detect energy leakage in order to reduce energy consumption of buildings. Currently, infrared thermography is used as a preliminary investigation tool because it does not cause physical damage during the exploratory investigation. In practice, diagnosis of the building using infrared thermography requires not only drawings of the building but also the properties of materials and information about the joints and junctions of the building components. However, often, accurate building drawings are not available for existing buildings, and this makes diagnosis of the building using infrared thermography difficult. This study aims to propose a method to automatically map infrared thermographs acquired during periodic diagnosis of the building to its as-built data without fixing the relative position and direction of the infrared camera and a sensor that is used to acquire the as-built 3D point cloud. The preliminary experimental result shows that the proposed method can automatically map an infrared thermograph to an as-built 3D point cloud acquired from different positions and at different times.

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Infrared thermography (IRT) applications for building diagnostics: A review

Cited by 411 publications

References 104 publications

Multispectral Applications of Infrared Thermography in the Diagnosis and Protection of Built Cultural Heritage

Multispectral Applications of Infrared Thermography in the Diagnosis and Protection of Built Cultural Heritage

The conditions for thermographic testing of thermal power engineering installations

Automatic 3D Thermal Modeling Using Thermal Data Obtained from Unknown Viewpoints

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