Modelagem de um Sistema Filtro-Vala-Trincheira de Infiltração pelo Método de PULS Adaptado para Calibração de Parâmetros

Lucas, Alessandro Hirata; Barbassa, Ademir Paceli; Moruzzi, Rodrigo Braga

doi:10.21168/rbrh.v18n2.p225-236

Cited by 7 publications

(11 citation statements)

References 3 publications

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“…Lucas, Barbassa and Moruzzi (2013) found a greater variation in NS coefficient and relative error (-0.98 to 0.98 and 3.1% to 68%, respectively). They attributed this variation to simplifications in Puls model when considering constant infiltration and ignoring variation between initial and final infiltration capacity provided by the soil moistening.…”

Section: Validationmentioning

confidence: 91%

“…Output flow rate resulted from infiltration on the sides and bottom of the device. Angelini Sobrinha (2012) also considered this condition when modelled an infiltration well, and Lucas, Barbassa and Moruzzi (2013) when represented an infiltration trench. The discretized lumped continuity equation takes the form expressed in Equation 3.…”

Section: Puls Model Applied To Bioretentionmentioning

confidence: 99%

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Puls method for events simulation in a lot scale bioretention device

Ferreira

Neves

Souza

2019

RBRH

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Bioretention is a technique applied to treat and reduce runoff generated in urban areas. Although these facilities present complex processes, a simple model with few parameters can be useful for its project. This paper reports an application of Puls method as a bioretention simulation quantitative tool for events. A bioretention device in real scale was installed and monitored using four level sensors and a tipping-bucket rain gauge, both with data loggers. The method was applied in two ways: the facility as a single reservoir; and the facility as two serial reservoirs. Outflows depended on a single infiltration rate in the first case (K) and two infiltration rates in the second case (K1 and K2). The study used 15 events. Results showed suitable values for Nash-Sutcliffe (NS) and determination coefficients (R2) in the calibration phase, especially for bioretention simulated as a single reservoir, with NS values ranging from 0.64 to 0.95. NS ranged from 0.80 to 0.95 in the calibration phase for the device simulated as two serial reservoirs. The validation phase achieved lower NS and R2 than calibration phase. Despite this, the present study suggests the Puls model as a good option for research on bioretention devices modelling.

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Section: Validationmentioning

confidence: 91%

Section: Puls Model Applied To Bioretentionmentioning

confidence: 99%

Puls method for events simulation in a lot scale bioretention device

Ferreira

Neves

Souza

2019

RBRH

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“…However, this system has a maximum storage capacity of 110 m 3 , according to the design and hydro-geological parameters that were defined by Lucas et al (2013). The area requirements of the entire system are approximately 600 m 2 .…”

Section: Description Of the Fstmentioning

confidence: 99%

Environmental and economic assessment of a pilot stormwater infiltration system for flood prevention in Brazil

Petit‐Boix

Sevigné‐Itoiz

Rojas-Gutierrez

et al. 2015

Ecological Engineering

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Abstract:Green and grey stormwater management infrastructures, such as the filter, swale and infiltration trench (FST), can be used to prevent flooding events. The aim of this paper was to determine the environmental and economic impacts of a pilot FST that was built in São Carlos (Brazil) using Life Cycle Assessment (LCA) and Life Cycle Costing (LCC). As a result, the components with the greatest contributions to the total impacts of the FST were the infiltration trench and the grass cover. The system has a carbon footprint of 0.13 kg CO 2 eq./m 3 of infiltrated stormwater and an eco-efficiency ratio of 0.35 kg CO 2 eq./USD. Moreover, the FST prevented up to 95% of the runoff in the area.Compared to a grey infrastructure, this system is a good solution with respect to PVC stormwater pipes, which require a long pipe length (1070 m) and have a shorter lifespan. In contrast, concrete pipes are a better solution, and their impacts are similar to those of the FST. Finally, a sensitivity analysis was conducted to assess the changes in the impacts with the varying lifespan of the system components. Thus, the proper management of the FST can reduce the economic and environmental impacts of the system by increasing its durability.

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“…No Brasil, há estudos sobre trincheiras de infiltração apresentados por Lima (2009) e Lucas et al (2013) No Brasil, especificamente poços de infiltração foram investigados por Reis et al (2008); Reis & Ilha (2014); Carvalho (2008;2013); Barbassa et al (2014); e Lucas et al (2015).…”

Section: Introductionunclassified

Controle de enchentes no lote por poço de infiltração de água pluvial sob nova concepção

Ferreira

Barbassa

Moruzzi

2018

Eng. Sanit. Ambient.

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RESUMO O objetivo deste trabalho foi avaliar uma nova concepção de poço de infiltração como técnica de controle de drenagem pluvial na fonte. Esse poço, denominado P-GHidro, possui furos na parede dos anéis de concreto, camada de brita externa aos anéis para melhorar a distribuição de água, pré-filtro de geotêxtil na tampa e filtros adicionais no fundo e na lateral, entre a brita e o solo. Usou-se como referência o poço de infiltração comumente empregado em São Carlos, São Paulo (P-SC), cuja construção foi realizada com anéis de concreto justapostos ao solo sem furos laterais e sem pré-filtro. Foram realizados seis ensaios de chuvas simuladas para cada poço de infiltração. Os dados experimentais de vazão de água infiltrada foram modelados pelo método de Puls. A condutividade hidráulica, constante ou variada, foi empregada como parâmetro de calibração do modelo aos dados experimentais; o ajuste foi avaliado por meio dos coeficientes de determinação (R2) e de Nash-Sutcliffe (NS). O P-GHidro apresentou melhor desempenho na infiltração de água pluvial, com volume armazenado 25% menor e tempos de esvaziamento 4% menores que os do P-SC. A modelagem apresentou boa representatividade dos dados experimentais para condutividade hidráulica constante (média de R2 de 0,92 e de NS de 0,56) e melhor ainda para condutividade hidráulica variada (média de R2 de 0,97 e de NS de 0,97).

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Modelagem de um Sistema Filtro-Vala-Trincheira de Infiltração pelo Método de PULS Adaptado para Calibração de Parâmetros

Cited by 7 publications

References 3 publications

Puls method for events simulation in a lot scale bioretention device

Puls method for events simulation in a lot scale bioretention device

Environmental and economic assessment of a pilot stormwater infiltration system for flood prevention in Brazil

Controle de enchentes no lote por poço de infiltração de água pluvial sob nova concepção

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