Assessment of water losses in distribution networks: Municipality of Chimoio, Mozambique

Authors

DOI:

https://doi.org/10.33448/rsd-v11i6.28535

Keywords:

Calibration; Epanet; Hydraulic; Pressure; Water loss.

Abstract

Water is vital for human survival, health and dignity. However, freshwater resources are under increasing pressure due to increasing population growth and increasing economic activities. Water supply systems, due to their complexity and specificity, introduce a certain degree of production loss. Therefore, in Mozambique, there is a great concern of the water distribution company and the researchers in the search for solutions for the implementation of operational processes that minimize water losses. Thus, the research aimed to evaluate water losses in the supply network in the Municipality of Chimoio, Zone 25 de Junho. The study was based on the determination of the water balance, hydraulic modeling and its calibration, using the Epanet 2.0 Software. The results obtained indicate that the rate of water losses in the supply network was 25% and losses significantly influenced the pressure and flow variables.

References

Alegre, H., Baptista, J. M., Cabrera JR., E., Cubillo, F., Duarte, P., Hirner, W., Merkel, W. & Parena, R. (2000). Performance indicators for water supply services. London: International Water Association – IWA.

Arbues, F., GARCÍA-Valiñas, M. A. & Martínez-Espiñeira, R. (2012). Estimation of residential water demand: a state-of-the-art review. Journal of Socio-Economics, North-holland.

Banco Mundial. (2009). Moçambique. (online), https://ppiaf.org/documents/2638/download.

Banco Mundial. (2018). Moçambique. (online), https://data.worldbank.org/country/Mozambique.

Bruggen, B. V. der, Borghgraef, K. & Vinckier, C. (2010). Causes of Water Supply Problems in Urbanized Regions in Developing Countries. Water Resources Management, Springer.

Coelho, S. T., Loureiro, D. & Alegre, H. (2006). Modelação e análise de sistemas de abastecimento de água, Instituto Regulador de Águas e Resíduos Laboratório Nacional de Engenharia Civil.

Gumbo, B. (2004). The status of water demand management in selected cities of Southern Africa. Physics and Chemistry of the Earth, Vol. 29, 1225-1231.

Heller, L. & Lúcio de Paula, V. (2006). Abastecimento de água para consumo humano. Belo Horizonte, Minas Gerais, Brasil, Editora UFMG

José A. A. de SÁ Marques & Joaquim J. de Oliveira Sousa. (2011). Hidráulica Urbana, Sistemas de Abastecimento de água e de Drenagem de águas residuais, 3aEdição, Imprensa da Universidade de Coimbra.

Jury, W. A. & Vaux, H. The role of science in solving the world’s emerging water problems. (2005). Proceedings of the National Academy of Sciences of the United States of America.

Lakatos, E. & Marconi, A. (2003). Fundamentos de metodologia científica (5 ed.). São Paulo: Atlas.

Olaia, Ana I. Santos. (2012). Gestão de Sistemas de Abastecimento de Água Através de Modelação Hidráulica. Tese MSc. Faculdade de Ciências e Tecnologia - Universidade Nova de Lisboa, Lisboa, Portugal.

Pinto, T. M. Modelação E Calibração de Um Sistema De Abastecimento De Água. repositorio-aberto.up.pt: https://repositorio-aberto.up.pt/bitstream/10216/59298/1/000144794.

Programa Acelerado Integrado de Redução de Perdas (PAIRP). (2019). FIPAG, pigi.fipag.co.mz/docs/Internal%20NRW%Strategy_Maputo.pdf.

Rego, A. A. C. (2007). Integração de ferramentas SIG para a optimização sistema adutor com recurso ao Epanet. Dissertação (Mestrado) - Faculdade de Engenharia da Universidade do Porto, Portugal.

Rossman, l a. (2004). The Epanet water distribution system model. Presented at 2004 Peer Review Meeting, Cincinnati, OH, September 27 – 29.

Todini, E. (2003). A More Realistic Approach to the “Extended Period Simulation” of Water Distribution Networks. In: advances in water supply management. Maksimovic, c.; butler, d.; memon, f. A. (eds.), Swets & Zeitlinger, Lisse, The Netherlands.

Tsutiya, M.T. (2001). Redução do Custo de Energia Eléctrica em Sistemas de Abastecimento de Água, 1ª Ed. São Paulo: Associação Brasileira de Engenharia Sanitária e Ambiental.

Tucciarelli, T., Criminisi, A. & Termini, D. Leak. (1999). Analysis in Pipeline Systems by Means of Optimal Valve Regulation. Journal of Hydraulic Engineering, v. 125, n. 3, p. 277-285.

Turner, A. & White, S. (2006). Water in the Urban Environment - Conference, Sippy Downs. Anais. Queensland, Australia.

Willis, R.M., Stewart, R.A., Giurco, D. P., Talebpour, M. R. & Mousavinejad, A. (2011). End use water consumption in households: impact of socio-demographic factors and efficient devices. Journal of Cleaner Production, Elsevier.

Ylva Nordström. (2019). Water Availability Challenges in Mozambique-Implications to the Nexus. Master of Science Thesis, KTH.

Published

19/04/2022

How to Cite

KHANLAWIA, A. .; CHILOLE, G. .; CRISTÓVÃO , L. Assessment of water losses in distribution networks: Municipality of Chimoio, Mozambique. Research, Society and Development, [S. l.], v. 11, n. 6, p. e4911628535, 2022. DOI: 10.33448/rsd-v11i6.28535. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/28535. Acesso em: 22 nov. 2024.

Issue

Section

Review Article