All-optical real-time monitoring of air/vacuum valves in water pipeline systems using fiber Bragg gratings
| Autor: | Aquino, Genivaldo Alcântara de, 1967, Lucca, Yvone de Faria Lemos De, 1953, Cabral, Thiago Destri, 1990, Lazari, Pedro Machado, Martim, André Luís Sotero Salustiano, 1976, Fujiwara, Eric, 1985, Cordeiro, Cristiano Monteiro de Barros, 1973, Dalfré Filho, José Gilberto, 1976 |
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| Přispěvatelé: | UNIVERSIDADE ESTADUAL DE CAMPINAS |
| Rok vydání: | 2022 |
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| Zdroj: | Repositório Institucional da Unicamp Universidade Estadual de Campinas (UNICAMP) instacron:UNICAMP Repositório da Produção Científica e Intelectual da Unicamp |
| Popis: | Agradecimentos: This work was funded in part by the São Paulo Research Foundation (FAPESP) under grants no. 2010/51522-9, 2017/09921-2 and 2019/12166-7, and in part by the São Paulo Water Supply Company (SABESP). Experimental work was conducted at the University of Campinas, in the Laboratory of Hydraulics and Fluid Mechanics (LHMF), Laboratory of Specialty Optical Fibers and Optical Sensors (LaFE), and Laboratory of Structural Modeling and Monitoring (LABMEN). The authors would also like to thank Stenio Aristilde and Thiago Delfino for assisting with the experiments, and Espaço da Escrita–Pró Reitoria de Pesquisa–UNICAMP–for the language services provided Abstract: 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 FUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESP Fechado |
| Databáze: | OpenAIRE |
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