6533b829fe1ef96bd1289b84

RESEARCH PRODUCT

Integrated emitter local loss prediction using artificial neural networks.

Guillermo Palau-salvadorPau MartíGiuseppe ProvenzanoÁLvaro Royuela

subject

EngineeringArtificial neural networkbusiness.industryHydraulicsReliability (computer networking)Process (computing)Regression analysisAgricultural and Biological Sciences (miscellaneous)Performance indexlaw.inventionlawTest setPhysics::Accelerator PhysicsSettore AGR/08 - Idraulica Agraria E Sistemazioni Idraulico-ForestalibusinessSimulationWater Science and TechnologyCivil and Structural EngineeringCommon emitterEmitters local losses ANN

description

This paper describes an application of artificial neural networks (ANNs) to the prediction of local losses from integrated emitters. First, the optimum input-output combination was determined. Then, the mapping capability of ANNs and regression models was compared. Afterwards, a five-input ANN model, which considers pipe and emitter internal diameter, emitter length, emitter spacing, and pipe discharge, was used to develop a local losses predicting tool which was obtained from different training strategies while taking into account a completely independent test set. Finally, a performance index was evaluated for the test emitter models studied. Emitter data with low reliability were removed from the process. Performance indexes over 80% were obtained for the remaining test emitters.

10.1061/(asce)ir.1943-4774.0000125http://hdl.handle.net/10447/53818