2016
DOI: 10.1016/j.biosystemseng.2016.07.005
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Effects of the underdrain design on the pressure drop in sand filters

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Cited by 15 publications
(14 citation statements)
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“…Figures 8 and 10 confirmed the departure from uniform conditions as the flow approached the underdrain element. Arbat et al [12] and Pujol et al [15] proposed a simplified pressure drop model to take this effect into account. In their analytical model, the granular bed was divided into two regions: region 1 far from the underdrain in which the flow was essentially uniform, and region 2 close to the underdrain with a non-uniform flow behavior.…”
Section: Discussionmentioning
confidence: 99%
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“…Figures 8 and 10 confirmed the departure from uniform conditions as the flow approached the underdrain element. Arbat et al [12] and Pujol et al [15] proposed a simplified pressure drop model to take this effect into account. In their analytical model, the granular bed was divided into two regions: region 1 far from the underdrain in which the flow was essentially uniform, and region 2 close to the underdrain with a non-uniform flow behavior.…”
Section: Discussionmentioning
confidence: 99%
“…In region 2, both major and minor loss terms were modified according to a reduction in the number of channels available. In region 2, [12,15] assumed a linear decrease in the available diameter for the water flow from D f (=200 mm; filter diameter) to D s = (4A i,u /π) 1/2 = 27.2 mm; equivalent diameter of the slots open area). The extent of region 2 was calculated by matching the virtual surface area of a scaled underdrain to the filter cross-sectional area A f .…”
Section: Discussionmentioning
confidence: 99%
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“…Los filtros de arena son los que ofrecen una elevada protección en las instalaciones de riego por goteo [13] ya que consiguen una reducción más eficaz de los sólidos en suspensión presentes en las aguas de riego [7], evitando mejor la obturación [6]. Algunos autores han estudiado la influencia del diseño del drenaje de los filtros de arena en la pérdida de carga [14,15,16], pero ninguno de ellos ha X CONGRESO IBÉRICO DE AGROINGENIERÍA X CONGRESSO IBÉRICO DE AGROENGENHARIA 3 -6 septiembre 2019, Huesca -España analizado cómo el diseño del filtro afecta a la obturación de los goteros. Por otra parte, los filtros de arena tienen que someterse a contralavados periódicos para liberar las partículas retenidas en el medio si se quiere garantizar su buen funcionamiento [17].…”
Section: Introductionunclassified
“…Los filtros de arena son los que ofrecen una elevada protección en las instalaciones de riego por goteo [13] ya que consiguen una reducción más eficaz de los sólidos en suspensión presentes en las aguas de riego [7], evitando mejor la obturación [6]. Algunos autores han estudiado la influencia del diseño del drenaje de los filtros de arena en la pérdida de carga [14,15,16], pero ninguno de ellos ha…”
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