Photopyroelectric Technique, in the Thermally Thin Regime, for Thermal Effusivity Measurements of Liquids
Título del documento: Photopyroelectric Technique, in the Thermally Thin Regime, for Thermal Effusivity Measurements of Liquids
Revista: Brazilian journal of physics
Base de datos: PERIÓDICA
Número de sistema: 000390703
ISSN: 0103-9733
Autores: 1
2
3
1
1
1
1
Instituciones: 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
Año:
Periodo: Feb
Volumen: 46
Número: 1
Paginación: 105-110
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental, aplicado
Resumen en inglés 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
Disciplinas: Física y astronomía
Palabras clave: 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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