Multi-needle capacitance probe for non-conductive two-phase flows
Despite its variable degree of application, intrusive instrumentation is the most accurate way to obtain local information in a two-phase flow system, especially local interfacial velocity and local interfacial area parameters. In this way, multi-needle probes, based on conductivity or optical princ...
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| Format: | Article |
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IOP Publishing
2016
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| Online Access: | https://eprints.nottingham.ac.uk/44149/ |
| _version_ | 1848796848322510848 |
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| author | Monrós-Andreu, G. Martinez-Cuenca, R. Torró, S. Escrig, J. Hewakandamby, B. Chiva, S. |
| author_facet | Monrós-Andreu, G. Martinez-Cuenca, R. Torró, S. Escrig, J. Hewakandamby, B. Chiva, S. |
| author_sort | Monrós-Andreu, G. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Despite its variable degree of application, intrusive instrumentation is the most accurate way to obtain local information in a two-phase flow system, especially local interfacial velocity and local interfacial area parameters. In this way, multi-needle probes, based on conductivity or optical principles, have been extensively used in the past few decades by many researchers in two-phase flow investigations. Moreover, the signal processing methods used to obtain the time-averaged two-phase flow parameters in this type of sensor have been thoroughly discussed and validated by many experiments.
The objective of the present study is to develop a miniaturized multi-needle probe, based on capacitance measurements applicable to a wide range of non-conductive two-phase flows and, thus, to extend the applicability of multi-needle sensor whilst also maintaining a signal processing methodology provided in the literature for conductivity probes.
Results from the experiments performed assess the applicability of the proposed sensor measurement principle and signal processing method for the bubbly flow regime. These results also provide an insight into the sensor application for more complex two-phase flow regimes. |
| first_indexed | 2025-11-14T19:54:30Z |
| format | Article |
| id | nottingham-44149 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:54:30Z |
| publishDate | 2016 |
| publisher | IOP Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-441492020-05-04T17:49:13Z https://eprints.nottingham.ac.uk/44149/ Multi-needle capacitance probe for non-conductive two-phase flows Monrós-Andreu, G. Martinez-Cuenca, R. Torró, S. Escrig, J. Hewakandamby, B. Chiva, S. Despite its variable degree of application, intrusive instrumentation is the most accurate way to obtain local information in a two-phase flow system, especially local interfacial velocity and local interfacial area parameters. In this way, multi-needle probes, based on conductivity or optical principles, have been extensively used in the past few decades by many researchers in two-phase flow investigations. Moreover, the signal processing methods used to obtain the time-averaged two-phase flow parameters in this type of sensor have been thoroughly discussed and validated by many experiments. The objective of the present study is to develop a miniaturized multi-needle probe, based on capacitance measurements applicable to a wide range of non-conductive two-phase flows and, thus, to extend the applicability of multi-needle sensor whilst also maintaining a signal processing methodology provided in the literature for conductivity probes. Results from the experiments performed assess the applicability of the proposed sensor measurement principle and signal processing method for the bubbly flow regime. These results also provide an insight into the sensor application for more complex two-phase flow regimes. IOP Publishing 2016-05-31 Article PeerReviewed Monrós-Andreu, G., Martinez-Cuenca, R., Torró, S., Escrig, J., Hewakandamby, B. and Chiva, S. (2016) Multi-needle capacitance probe for non-conductive two-phase flows. Measurement Science and Technology, 27 (7). 074004/1-074004/12. ISSN 1361-6501 two-phase flow needle probes local flow parameters non-conductive mixture capacitance probes https://doi.org/10.1088/0957-0233/27/7/074004 doi:10.1088/0957-0233/27/7/074004 doi:10.1088/0957-0233/27/7/074004 |
| spellingShingle | two-phase flow needle probes local flow parameters non-conductive mixture capacitance probes Monrós-Andreu, G. Martinez-Cuenca, R. Torró, S. Escrig, J. Hewakandamby, B. Chiva, S. Multi-needle capacitance probe for non-conductive two-phase flows |
| title | Multi-needle capacitance probe for non-conductive two-phase flows |
| title_full | Multi-needle capacitance probe for non-conductive two-phase flows |
| title_fullStr | Multi-needle capacitance probe for non-conductive two-phase flows |
| title_full_unstemmed | Multi-needle capacitance probe for non-conductive two-phase flows |
| title_short | Multi-needle capacitance probe for non-conductive two-phase flows |
| title_sort | multi-needle capacitance probe for non-conductive two-phase flows |
| topic | two-phase flow needle probes local flow parameters non-conductive mixture capacitance probes |
| url | https://eprints.nottingham.ac.uk/44149/ https://eprints.nottingham.ac.uk/44149/ https://eprints.nottingham.ac.uk/44149/ |