2013
DOI: 10.1016/j.enbuild.2013.07.004
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Assessment of the thermal emissivity value of building materials using an infrared thermovision technique emissometer

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Cited by 52 publications
(33 citation statements)
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“…Unlike other methods, it is important to notice that also the thermal emissivity of the surface finishing under investigation is measured on site following an innovative procedure defined in [15] giving high precision. Emissivity is a parameter that has a significant impact on the measured surface temperature [7], while it is usually defined by the operator out of literature surveys without taking properly into account surface roughness and surface microstructure, aging of the materials, induced by the exposure to environmental, pollution conditions.…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…Unlike other methods, it is important to notice that also the thermal emissivity of the surface finishing under investigation is measured on site following an innovative procedure defined in [15] giving high precision. Emissivity is a parameter that has a significant impact on the measured surface temperature [7], while it is usually defined by the operator out of literature surveys without taking properly into account surface roughness and surface microstructure, aging of the materials, induced by the exposure to environmental, pollution conditions.…”
Section: Discussionmentioning
confidence: 99%
“…The method based on the ITT emissometer formerly presented and discussed by the authors in [15] is used.…”
Section: Formulation Of Itt Equationmentioning
confidence: 99%
“…Input quantities: T os , varies with q; T orfl = T a = T rfl = 293 K, and with standard uncertainties and remaining input quantities as inTables 1 and 2.with regards to measurement uncertainty. For examples, (i) the uncertainty in temperature values presented by the thermal camera should not be limited by the number of significant digits given, (ii) the reflector temperature T rfl and (iii) the surface emissivity e s , and their uncertainties, could be more accurately estimated by measurement (for measurement of e s , cf [25,26]…”
mentioning
confidence: 99%
“…Para a captura das imagens, a câmera foi posicionada à distância fixa de 50 cm da superfície do filme espalhado. A emissividade (ε) usada para o extrato de café foi de 0.97, a qual foi determinada com auxílio de um termômetro de infravermelho (TESTO, modelo 845, Alemanha) conforme o método proposto por Albatici et al (2013). A umidade relativa do ar e a temperatura ambiente foram medidas com um instrumento de medição de temperatura e umidade relativa (Testo, modelo 610, Alemanha).…”
Section: Methodsunclassified