Onset of Nucleate Boiling and Onset of Fully Developed Subcooled Boiling Using Pressure Transducers Signals Spectral Analysis



Título del documento: Onset of Nucleate Boiling and Onset of Fully Developed Subcooled Boiling Using Pressure Transducers Signals Spectral Analysis
Revista: Journal of the Brazilian Society of Mechanical Sciences
Base de datos: PERIÓDICA
Número de sistema: 000312081
ISSN: 0100-7386
Autores: 1

Instituciones: 1Comissao Nacional de Energia Nuclear, Instituto de Pesquisas Energeticas e Nucleares, Sao Paulo. Brasil
Año:
Volumen: 23
Número: 4
Paginación: 513-522
País: Brasil
Idioma: Inglés
Tipo de documento: Artículo
Enfoque: Experimental
Resumen en inglés The experimental technique used for detection of subcooled boiling through analysis of the fluctuation contained in pressure transducer signals is presented. This work was partly conducted at the Institut für Kerntechnik und zertörungsfreie Prüfverfahren von Hannover (IKPH, Germany) in a thermal-hydraulic circuit with one electrically heated rod with annular geometry test section. Piezoresistive pressure sensors are used for onset of nucleate boiling (ONB) and onset of fully developed boiling (OFDB) detection using spectral analysis/ signal correlation techniques. Experimental results are interpreted by phenomenological analysis of these two points and compared with existing correlation. The results allow us to conclude that this technique is adequate for the detection and monitoring of the ONB and OFDB
Disciplinas: Física y astronomía,
Ingeniería
Palabras clave: Termodinámica y física estadística,
Ingeniería de instrumentos,
Subcooling,
Ebullición,
Análisis espectral,
Vibraciones,
Nucleación,
Presión,
Transductores
Keyword: Physics and astronomy,
Engineering,
Thermodynamics and statistical physics,
Instrumentation engineering,
Subcooling,
Boiling,
Spectral analysis,
Vibrations,
Nucleation,
Pressure,
Transducers
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