Spectroscopic Techniques versus Pitot Tube for the Measurement of Flow Velocity in Narrow Ducts
In order to assess the limits and applicability of Pitot tubes for the measurement of flow velocity in narrow ducts, e.g., biomass burning plants, an optical, dual function device was implemented. This sensor, based on spectroscopic techniques, targets a trace gas, injected inside the stack either i...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2020-12-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1424-8220/20/24/7349 |
| _version_ | 1797543961177358336 |
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| author | Francesco D’Amato Silvia Viciani Alessio Montori Marco Barucci Carmen Morreale Silvia Bertagna Gabriele Migliavacca |
| author_facet | Francesco D’Amato Silvia Viciani Alessio Montori Marco Barucci Carmen Morreale Silvia Bertagna Gabriele Migliavacca |
| author_sort | Francesco D’Amato |
| collection | DOAJ |
| description | In order to assess the limits and applicability of Pitot tubes for the measurement of flow velocity in narrow ducts, e.g., biomass burning plants, an optical, dual function device was implemented. This sensor, based on spectroscopic techniques, targets a trace gas, injected inside the stack either in bursts, or continuously, so performing transit time or dilution measurements. A comparison of the two optical techniques with respect to Pitot readings was carried out in different flow conditions (speed, temperature, gas composition). The results of the two optical measurements are in agreement with each other and fit quite well the theoretical simulation of the flow field, while the results of the Pitot measurements show a remarkable dependence on position and inclination of the Pitot tube with respect to the duct axis. The implications for the metrology of small combustors’ emissions are outlined. |
| first_indexed | 2024-03-10T13:53:11Z |
| format | Article |
| id | doaj.art-f4315a22cc1241de9746dc16d6c5b2bd |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T13:53:11Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-f4315a22cc1241de9746dc16d6c5b2bd2023-11-21T01:56:04ZengMDPI AGSensors1424-82202020-12-012024734910.3390/s20247349Spectroscopic Techniques versus Pitot Tube for the Measurement of Flow Velocity in Narrow DuctsFrancesco D’Amato0Silvia Viciani1Alessio Montori2Marco Barucci3Carmen Morreale4Silvia Bertagna5Gabriele Migliavacca6CNR-INO, Area CNR, Via Madonna del Piano 10, 50019 Sesto Fiorentino, ItalyCNR-INO, Area CNR, Via Madonna del Piano 10, 50019 Sesto Fiorentino, ItalyCNR-INO, Area CNR, Via Madonna del Piano 10, 50019 Sesto Fiorentino, ItalyCNR-INO, Area CNR, Via Madonna del Piano 10, 50019 Sesto Fiorentino, ItalyInnovhub Stazioni Sperimentali per l’Industria srl, Via G. Galilei 1, 20097 San Donato Milanese, ItalyInnovhub Stazioni Sperimentali per l’Industria srl, Via G. Galilei 1, 20097 San Donato Milanese, ItalyInnovhub Stazioni Sperimentali per l’Industria srl, Via G. Galilei 1, 20097 San Donato Milanese, ItalyIn order to assess the limits and applicability of Pitot tubes for the measurement of flow velocity in narrow ducts, e.g., biomass burning plants, an optical, dual function device was implemented. This sensor, based on spectroscopic techniques, targets a trace gas, injected inside the stack either in bursts, or continuously, so performing transit time or dilution measurements. A comparison of the two optical techniques with respect to Pitot readings was carried out in different flow conditions (speed, temperature, gas composition). The results of the two optical measurements are in agreement with each other and fit quite well the theoretical simulation of the flow field, while the results of the Pitot measurements show a remarkable dependence on position and inclination of the Pitot tube with respect to the duct axis. The implications for the metrology of small combustors’ emissions are outlined.https://www.mdpi.com/1424-8220/20/24/7349laser flow meterPitot tubeflow speedtime of flightdilution methodflow simulation |
| spellingShingle | Francesco D’Amato Silvia Viciani Alessio Montori Marco Barucci Carmen Morreale Silvia Bertagna Gabriele Migliavacca Spectroscopic Techniques versus Pitot Tube for the Measurement of Flow Velocity in Narrow Ducts Sensors laser flow meter Pitot tube flow speed time of flight dilution method flow simulation |
| title | Spectroscopic Techniques versus Pitot Tube for the Measurement of Flow Velocity in Narrow Ducts |
| title_full | Spectroscopic Techniques versus Pitot Tube for the Measurement of Flow Velocity in Narrow Ducts |
| title_fullStr | Spectroscopic Techniques versus Pitot Tube for the Measurement of Flow Velocity in Narrow Ducts |
| title_full_unstemmed | Spectroscopic Techniques versus Pitot Tube for the Measurement of Flow Velocity in Narrow Ducts |
| title_short | Spectroscopic Techniques versus Pitot Tube for the Measurement of Flow Velocity in Narrow Ducts |
| title_sort | spectroscopic techniques versus pitot tube for the measurement of flow velocity in narrow ducts |
| topic | laser flow meter Pitot tube flow speed time of flight dilution method flow simulation |
| url | https://www.mdpi.com/1424-8220/20/24/7349 |
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