The article contains the results of the first part of the research on the analysis of the operation of the retention device cooperating with the drainage system—steerable detention tank and concerns model simulation studies. The obtained results are an introduction to conducting laboratory tests. The planned research was carried out on the basis of the theory of experimental planning and hydrodynamic modelling, in which the systems of hydraulic parameters of the drainage system and hydrological of the catchment were selected. In total, over a thousand hydrodynamic simulations were carried out using SWMM 5.1. The planned analyses had two main goals. Firstly, to verify the possibility of reducing the rainwater volume flow in the drainage system by means of controllable devices enabling cooperation with the drainage system in various hydraulic conditions of the drainage system. Secondly, determining the impact of the connection method (parallel or serial) of the device enabling retention and cooperation with the sewage system on the efficiency of the system. The conducted analyses showed that the use of a retention device cooperating with the drainage system may significantly reduce the amount of sewage outfall from system, depending on the capacity of a single micro-accumulator, even up to 83% (in the analysed data range). It was also shown that the method of connecting the device to the network has an influence on the efficiency of the system in depend on hydraulic conditions.
The article intends to present the validation stage of a software to model and simulate hydraulic networks for water distribution, the SCALER, through its application to a real system, with many branches, with a model previously developed and verified using the EPANET software. SCALER was developed in 2020 and 2021 and, until then, had only been applied to networks with a relatively small number of branches. After discussing topics related to hydraulic modeling of distribution networks, techniques and applications, a brief review of the fundamentals of SCALER is carried out, passing on to its application to the case at hand, which is the Vila Joaniza community, in the municipality of Rio de Janeiro. Data from image, scheme and table are used to assist in the description of the local situation and respective distribution network, with the objective of assessing whether the nodal pressures obtained by SCALER are sufficiently similar to those obtained by EPANET, in order to ensure the proper functioning of the software. After this step, and the calculations have been made by the program, an operation screen, the generated graph of the local situation and a table with the comparison of absolute and percentage deviations between the nodal pressures resulting from the SCALER and those obtained with the EPANET are inserted, confirming that the deviation values are quite small, which validates SCALER as a software also applicable to networks with many branches.
Este documento apresenta instruções para a preparação de artigo científico como projeto final do curso de engenharia. O trabalho deve atender às seguintes especificações: a) digite o corpo do texto em uma única coluna; b) utilize um máximo de 20 páginas tamanho A4 (21 x 29,7 cm), cada qual com as margens direita e inferior iguais a 2,0 cm e superior e esquerda iguais a 3,0 cm (não inclua molduras ou números de página); c) use a fonte Times New Roman tamanho 14 pt para o título e 12 pt para subtítulos e corpo do texto. O tamanho mínimo de fonte para tabelas e figuras é de 10 pt; d) prepare um resumo com um máximo de 250 palavras em itálico seguido de no máximo cinco palavras-chave; e) use espaçamento simples e alinhamento justificado para os parágrafos; f) as referências devem ser listadas em ordem alfabética no final do trabalho, segundo a Norma NBR 6023; g) as figuras/fotografias incluídas no trabalho devem ser de boa qualidade (300 dpi/jpg). O trabalho poderá ser preparado em português.
Brasil enfrenta grandes problemas no saneamento básico, sendo essencial o uso da engenharia para superar os entraves, implantar as estações de tratamento e despoluir os efluentes. Governantes das esferas municipais, estaduais e federais junto com as incorporadoras, investem recursos para a universalização do saneamento básico brasileiro. Resultados obtidos no artigo com à pesquisa feita na cidade de Juiz de Fora -MG, onde o rio Paraibuna fornece o abastecimento de água, usando o método quantitativo, mostra à importância da população para a evolução do saneamento básico regional. Resíduos lançados nos esgotos podem ser transformados em fonte de energia limpa e renovável através de biogestores. Com base nos estudos de outros autores e suas comprovações científicas o artigo mostra uma solução para reduzir os gastos com o tratamento de efluentes através do biogás.
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