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dc.contributor.authorEspinoza Ramos, Karlos
dc.contributor.authorValera Martínez, Diego Luis
dc.contributor.authorTorres Arriaza, José Antonio
dc.contributor.authorLópez Martínez, Alejandro
dc.contributor.authorMolina Aiz, Francisco Domingo
dc.date.accessioned2020-01-16T11:38:50Z
dc.date.available2020-01-16T11:38:50Z
dc.date.issued2015-08-12
dc.identifier.issn1424-8220
dc.identifier.urihttp://hdl.handle.net/10835/7387
dc.description.abstractWind tunnels are a key experimental tool for the analysis of airflow parameters in many fields of application. Despite their great potential impact on agricultural research, few contributions have dealt with the development of automatic control systems for wind tunnels in the field of greenhouse technology. The objective of this paper is to present an automatic control system that provides precision and speed of measurement, as well as efficient data processing in low-speed wind tunnel experiments for greenhouse engineering applications. The system is based on an algorithm that identifies the system model and calculates the optimum PI controller. The validation of the system was performed on a cellulose evaporative cooling pad and on insect-proof screens to assess its response to perturbations. The control system provided an accuracy of <0.06 m·s‾1 for airflow speed and <0.50 Pa for pressure drop, thus permitting the reproducibility and standardization of the tests. The proposed control system also incorporates a fully-integrated software unit that manages the tests in terms of airflow speed and pressure drop set points.es_ES
dc.language.isoenes_ES
dc.publisherMDPIes_ES
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectlow-speed wind tunneles_ES
dc.subjectauto-tuning PI controlleres_ES
dc.subjectgreenhouse agriculture technologyes_ES
dc.titleAn Auto-Tuning PI Control System for an Open-Circuit Low-Speed Wind Tunnel Designed for Greenhouse Technologyes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES


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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internacional