Résumé
This paper presents void fraction and flow regimes determined by three methods: visualization (high speed camera), mass measurement (quick-closing valves) and a newly developed capacitance sensor. In a way, this is a calibration process for a capacitance sensor. It is shown that new sensor can characterize flow patterns in low mass flux range and measure void fraction for horizontal and vertical tubes. A calibration procedure of void fraction measurement is based on a mass measurement (quick-closing valves). Two calibration curves for measuring void fraction in horizontal and vertical tubes are developed. With calibration curves, sensors with similar configurations can be directly utilized to measure void fraction in further studies.
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Détails
- Titre original : Void fraction and flow regimes determined by visualization, mass measurement and new capacitance sensor.
- Identifiant de la fiche : 30024456
- Langues : Anglais
- Source : 2018 Purdue Conferences. 17th International Refrigeration and Air-Conditioning Conference at Purdue.
- Date d'édition : 09/07/2018
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Indexation
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Void fraction and flow regimes of R134a in hori...
- Auteurs : QIAN H., HRNJAK P.
- Date : 09/07/2018
- Langues : Anglais
- Source : 2018 Purdue Conferences. 17th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
Voir la fiche
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Flow patterns and pressure drop of vertical upw...
- Auteurs : QIAN H., HRNJAK P.
- Date : 24/08/2019
- Langues : Anglais
- Source : Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
- Formats : PDF
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Signal analysis and mass measurement based cali...
- Auteurs : QIAN H., HRNJAK P.
- Date : 24/08/2019
- Langues : Anglais
- Source : Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
- Formats : PDF
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The calculation of pressure drop during two-pha...
- Auteurs : PRISTOVNIK A., KROPE J., KROPE A.
- Date : 09/05/1998
- Langues : Anglais
- Source : Heating and air-conditioning of buildings. Energy and environment. Proceedings of the third SITHOK-3 International Congress + CD-ROM.
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Experimental investigation of pressure drop dur...
- Auteurs : GARCIA PABON J. J., KHOSRAVI A., NUNES R., et al.
- Date : 08/2019
- Langues : Anglais
- Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 104
- Formats : PDF
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