Desenvolvimento de um modelo fuzzy para determinação do calor latente com aplicação em sistemas de irrigação

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dc.contributor.advisorCagnon, José Angelo [UNESP]
dc.contributor.authorSouza, Orlando Tadeu Lima de [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-06-11T19:31:34Z
dc.date.available2014-06-11T19:31:34Z
dc.date.issued2004-12-17
dc.description.abstractThe determination of the necessary amount of water is one of the main parameters of an agriculture irrigation system. One of the efficient consequences of the measurements of the system is the increase of productivity, and therefore the profitable advantage of it. The satisfactory amount of water is therefore a very important condition for the growing accomplishment of the plant causing the production, with fewer costs. The aim of this work is the development of a mathematical model, based on the Fuzzy Theory, to determine the stream of latent heat, having as a result the calculation of the transpiration dissipated that defines the necessary amount of water for the cultivations of plants in protected environments; intending above all the balance of water usage and electricity in the agriculture activity. This model can be used in the implementation of a system that controls the outflowing of irrigations, determining the time and volume of water that is necessary for the furnishing of it. The required amount of water for the supplement of the system is the gathered through the determination of the stream of latent heat, for its highness is the equivalent to the volume of water transpired by the plant. The model adopts three variables to begin with, which are: the balance of solar radiation, stream of the soil heat and the air temperature, which are the amounts that are measured by the installed equipments in the planted area. Through this model is possible to determine the stream of latent heat (LE), having it as the variable of exit of the model. To have this model validated there were used data, that were obtained in the experiment that was done by the cultivation of Euruca Sativa L., in an incubator covered by polyethylene at the Department of Science, at Faculdade de Ciências Agrônomicas and the results were obtained trough simulations that were done in the Laboratory of this Institution...en
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.description.sponsorshipUniversidade Estadual Paulista (UNESP)
dc.format.extentxi, 113 f. : il. color., grafs.
dc.identifier.aleph000332560
dc.identifier.capes33004064021P7
dc.identifier.citationSOUZA, Orlando Tadeu Lima de. Desenvolvimento de um modelo fuzzy para determinação do calor latente com aplicação em sistemas de irrigação. 2004. xi, 113 f. Tese (doutorado) - Universidade Estadual Paulista, Faculdade de Ciências Agronômicas, 2004.
dc.identifier.filesouza_otl_dr_botfca.pdf
dc.identifier.urihttp://hdl.handle.net/11449/101734
dc.language.isopor
dc.publisherUniversidade Estadual Paulista (Unesp)
dc.rights.accessRightsAcesso aberto
dc.sourceAleph
dc.subjectIrrigação agricolapt
dc.subjectEstufa (Plantas)pt
dc.subjectRadiação solarpt
dc.subjectEvapotranspiraçãopt
dc.subjectSolos - Fluxo de calorpt
dc.subjectFuzzy logicen
dc.subjectIrrigationen
dc.subjectControlling systemsen
dc.titleDesenvolvimento de um modelo fuzzy para determinação do calor latente com aplicação em sistemas de irrigaçãopt
dc.typeTese de doutorado
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências Agronômicas, Botucatupt
unesp.graduateProgramAgronomia (Energia na Agricultura) - FCApt
unesp.knowledgeAreaEnergia na agriculturapt

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