2024-03-19T07:15:18Zhttps://www.tdx.cat/oai/requestoai:www.tdx.cat:10803/6659312019-02-26T12:11:18Zcom_10803_253col_10803_266
nam a 5i 4500
Dinàmica de fluids computacional
Computational fluid dynamics
Dinámica de flujos computacionales
Filtre granular
Granular filter
Filtro granular
Filtre de sorra
Sand filter
Filtro de arena
Optimización del diseño de los filtros de arena utilizados en sistemas de riego por goteo
[Girona] :
Universitat de Girona,
2019
Accés lliure
http://hdl.handle.net/10803/665931
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Bové Masmiquel, Josep,
autor
1 recurs en línia (134 pàgines)
Tesi
Doctorat
Universitat de Girona. Departament d'Enginyeria Química, Agrària i Tecnologia Agroalimentària
2018
Universitat de Girona. Departament d'Enginyeria Química, Agrària i Tecnologia Agroalimentària
Tesis i dissertacions electròniques
Arbat Pujolràs, Gerard,
supervisor acadèmic
Puig Bargués, Jaume,
supervisor acadèmic
TDX
To achieve a sand filter design that reduce its pressure loss, computational fluid dynamics (CFD) tecnique was used combined with laboratory tests in a scaled filter using different filter media. The CFD models allowed to identify those key points that allowed to reduce pressure drop. Thus, different underdrain designs were developed and computed. A prototype at the laboratory scale was manufactured from the digital filter model that offered a smaller pressure drop to verify its performance. The new design reduced the pressure drop across the whole of the filter by 30% at a surface filtration rate of 0.015 m/s and with a porous medium formed by silica sand with a size ranging from 0.63 to 0.75 mm. Lastly, a life cycle analysis (LCA) was performed to determine the environmental impact of the new design.
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