Quantitative infrared thermography imaging of the density of heat flow rate through a building element surface

Ohlsson, K. E. Anders; Olofsson, Thomas

doi:10.1016/j.apenergy.2014.08.058

Cited by 51 publications

(39 citation statements)

References 22 publications

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“…Thermal transmittance and heat transfer coefficient: Albatici et al [57], Fokaides et al [58], and Ohlsson et al [59] developed methods of evaluating the thermal transmittance and heat transfer coefficient using the IRT method. Albatici et al [57] developed a robust procedure for evaluating the thermal transmittance of opaque elements using the infrared thermovision technique.…”

Section: Microscopic Monitoring Using Irt Methodsmentioning

confidence: 99%

“…should be monitored when evaluating the building's dynamic energy performance. The influence factors of a building's dynamic energy performance can be divided into four categories: (i) thermal transmittance and heat transfer coefficient; (ii) sensible heat release; (iii) thermal bridges; and (iv) air temperature (refer to Table 4) [57][58][59][60][61][62][63][64][65][66][67].…”

Section: Microscopic Monitoring Using Irt Methodsmentioning

confidence: 99%

“…Heat flux meters (HFM) Sensitivity analysis Ohlsson et al [59] IR resolution: 160 Â 120 pixels Infrared thermography (IRT)…”

Section: 5-13 Lmmentioning

confidence: 99%

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A review on sustainable construction management strategies for monitoring, diagnosing, and retrofitting the building’s dynamic energy performance: Focused on the operation and maintenance phase

et al. 2015

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Section: Microscopic Monitoring Using Irt Methodsmentioning

confidence: 99%

Section: Microscopic Monitoring Using Irt Methodsmentioning

confidence: 99%

See 1 more Smart Citation

A review on sustainable construction management strategies for monitoring, diagnosing, and retrofitting the building’s dynamic energy performance: Focused on the operation and maintenance phase

et al. 2015

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“…In real conditions, the exact behavior of the ln[T(t)](ln(t)) temperature evolution, will be different due to variable parameters. However, the simple form of the logarithmic evolution of the temperature (T), i.e., ln[T(t)], is useful to be fitted through the least squares method for a n order polynomial, for each (i, j) pixel within the interested field of view (36) [2]:…”

Section: Hybrid Irt Approachmentioning

confidence: 99%

“…Recently, the use of thermographic quantitative procedures for the inspection of buildings has been generally applied to study thermal properties, such as the transmittance parameter (1)(2)(3)(4)(5).…”

Section: Introductionmentioning

confidence: 99%

Infrared exploration of the architectural heritage: from passive infrared thermography to <em>hybrid</em> infrared thermography (HIRT) approach

Сфарра¹,

Marcucci²,

Ambrosini³

et al. 2016

Mater. construcc.

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Up to now, infrared thermographic approaches have been considered either passive or active. In the latter case, the heat flux is historically attributed to a non-natural heat source. The use of the sun has recently been incorporated into the active approach thanks to multi-temporal inspections. In this paper, an innovative hybrid thermographic (HIRT) approach is illustrated. It combines both the time component and the solar source to obtain quantitative information such as the defect depth. Thermograms were obtained by inspecting the facade of the Santa Maria Collemaggio church (L'Aquila, Italy), whereas quantitative results related to the sub-superficial discontinuities were obtained thanks to the use of advanced techniques. Experimental results linked to passive approach (i.e., the mosaicking procedure of the thermograms) performed by selecting a set of historic churches are also included in order to explain, when and where, the hybrid procedure should be used. RESUMEN: Exploración infrarroja del patrimonio arquitectónico: de la termografía infrarroja pasiva al enfoque de la termografía infrarroja híbrida (HIRT).Hasta la fecha, los enfoques sobre la termografía infrarroja han sido considerados, o pasivos, o activos. En este último caso, el flujo de calor se obtiene a través de una fuente de calor no natural. El uso de energía solar ha sido recientemente incorporado al enfoque activo gracias a los estudios multitemporales. En este trabajo, se ilustra un enfoque innovador de la termografía híbrida (HIRT). Se combina tanto el componente de tiempo y la fuente de energía solar para recuperar la información cuantitativa así como la profundidad del defecto. Las imágenes térmicas se obtuvieron mediante el análisis de la fachada de la Iglesia de Santa María Collemaggio (L'Aquila, Italia), mientras que los resultados cuantitativos inherentes a las discontinuidades sub-superficiales se obtuvieron gracias al uso de otras técnicas avanzadas. Los resultados experimentales vinculados al enfoque pasivo (es decir, el proceso de mosaico de las imágenes térmicas) derivan de un conjunto de Iglesias antiguas, también incluidas en el estudio, a fin de explicar cuándo y dónde tiene sentido realizar un proceso híbrido.

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Building Performance Analysis

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Quantitative infrared thermography imaging of the density of heat flow rate through a building element surface

Cited by 51 publications

References 22 publications

A review on sustainable construction management strategies for monitoring, diagnosing, and retrofitting the building’s dynamic energy performance: Focused on the operation and maintenance phase

A review on sustainable construction management strategies for monitoring, diagnosing, and retrofitting the building’s dynamic energy performance: Focused on the operation and maintenance phase

Infrared exploration of the architectural heritage: from passive infrared thermography to <em>hybrid</em> infrared thermography (HIRT) approach

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