Simultaneous optimal estimation of roughness and minor loss coefficients in a pipeline
This paper presents a proposal to estimate simultaneously, through nonlinear optimization, the roughness and head loss coefficients in a non-straight pipeline. With the proposed technique, the calculation of friction is optimized by minimizing the fitting error in the Colebrook–White equation for an...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2020 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/333811 |
| Acceso en línea: | https://hdl.handle.net/2117/333811 https://dx.doi.org/10.3390/mca25030056 |
| Access Level: | acceso abierto |
| Palabra clave: | Mathematical optimization Pipelines Nonlinear optimization Turbulent flow Friction factor Pipe roughness Minor losses. Optimització matemàtica Canonades Àrees temàtiques de la UPC::Informàtica::Automàtica i control |
| Sumario: | This paper presents a proposal to estimate simultaneously, through nonlinear optimization, the roughness and head loss coefficients in a non-straight pipeline. With the proposed technique, the calculation of friction is optimized by minimizing the fitting error in the Colebrook–White equation for an operating interval of the pipeline from the flow and pressure measurements at the pipe ends. The proposed method has been implemented in MATLAB and validated in a serpentine-shaped experimental pipeline by contrasting the theoretical friction for the estimated coefficients obtained from the Darcy–Weisbach equation for a set of steady-state measurements. |
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