Photopyroelectric Technique, in the Thermally Thin Regime, for Thermal Effusivity Measurements of Liquids



Document title: Photopyroelectric Technique, in the Thermally Thin Regime, for Thermal Effusivity Measurements of Liquids
Journal: Brazilian journal of physics
Database: PERIÓDICA
System number: 000390703
ISSN: 0103-9733
Authors: 1
2
3
1
1
1
1
Institutions: 1Instituto Politécnico Nacional, Unidad Profesional Interdisciplinaria de Biotecnología, México, Distrito Federal. México
2Instituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, México, Distrito Federal. México
3Instituto Politécnico Nacional, Centro de Investigación en Biotecnología Aplicada, Tepetitla, Tlaxcala. México
Year:
Season: Feb
Volumen: 46
Number: 1
Pages: 105-110
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental, aplicado
English abstract A photopyroelectric methodology using pyroelectric devices in the thermally thin regime, for the measurement of the thermal effusivity of liquids, is described. A commercial buzzer, taking advantage of the pyroelectric activity of the ceramic material (PZT in this case), is used to achieve this goal. Equivalence for thermal effusivity measurements between this photopyroelectric methodology and a previously reported photoacoustic technique, in the front configuration, is established. The thermal effusivity of six liquids was measured using this device, and very good agreement was found with corresponding values reported in the literature
Disciplines: Física y astronomía
Keyword: Dinámica de fluidos,
Física,
Efusividad térmica,
Técnicas fotopiroeléctricas,
Líquidos
Keyword: Physics and astronomy,
Fluid dynamics,
Physics,
Thermal effusivity,
Photopyroelectric techniques,
Liquids
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