Advanced search
Start date
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

All-optical real-time monitoring of air/vacuum valves in water pipeline systems using fiber Bragg gratings

Full text
de Aquino, Genivaldo A. [1, 2] ; de F. L. De Lucca, Yvone [1, 3] ; Cabral, Thiago D. [4, 5] ; Lazari, Pedro M. [5] ; Martim, Andre L. S. S. [1] ; Fujiwara, Eric [4] ; Cordeiro, Cristiano M. B. [5] ; Filho, Jose G. Dalfre [1]
Total Authors: 8
[1] Univ Estadual Campinas, Sch Civil Engn Architecture & Urban Design, Campinas - Brazil
[2] Sao Paulo State Sanitat Co SABESP, Sao Paulo - Brazil
[3] Sao Paulo State Water & Energy Dept DAEE, Sao Paulo - Brazil
[4] Univ Estadual Campinas, Sch Mech Engn, Campinas - Brazil
[5] Univ Estadual Campinas, Gleb Wataghin Inst Phys, Campinas - Brazil
Total Affiliations: 5
Document type: Journal article
Source: Journal of the Brazilian Society of Mechanical Sciences and Engineering; v. 44, n. 1 JAN 2022.
Web of Science Citations: 0

A novel strategy for online real-time remote monitoring of air/vacuum valves in water pipelines is proposed and validated. The sensing setup consists of a fiber Bragg grating operating as an optical strain gauge and embedded into a 3D-printed thermoplastic polyurethane casing, which is then fixed to the intake/exhaust port of an air/vacuum valve and allowed to bend in response to the airflow. Experimentation with a test bench simulating water adductor piping systems shows that the proposed strategy can detect and discriminate between air purge and intake events, measure their duration, and possibly quantify the volume of displaced air. The proposed all-optical setup was compared against an orifice plate approach, producing consistent results while being more compact, robust, reliable, and requiring a single fiber optic sensor to achieve all measurements, as opposed to the four or up electronic pressure sensors with the orifice plate. (AU)

FAPESP's process: 19/12166-7 - Usage of hydrodynamic cavitation for caffeine degradation in water
Grantee:José Gilberto Dalfré Filho
Support Opportunities: Regular Research Grants
FAPESP's process: 17/09921-2 - Determination of the relationship between turbidity and suspended sediment concentration and elaboration of an evaluation model of sediment transport for the Jundiaí River - PCJ Basin
Grantee:André Luís Sotero Salustiano Martim
Support Opportunities: Regular Research Grants
FAPESP's process: 10/51522-9 - Experimental apparatus to test the dynamic behavior of air TRAP valves
Grantee:José Gilberto Dalfré Filho
Support Opportunities: Regular Research Grants