Substituição racional de hidrômetros em sistemas de abastecimento de água
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Data
2014-12
Título da Revista
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Editor
Ricardo Prado Abreu Reis
Resumo
This study evaluated the effect of under-metering in 862 water meters in
a countryside city of São Paulo State, with 75,000 active water connections. It was
evaluated metrological class A and B water meters, separated by manufacturer, year
and totalized volume. All water meters were subjected to bench tests in three
flows, 15 L/ h (class B) or 30 L/ h (class A), 75 L/ h (class A and B) and 750L/ h (A and
B class). The results showed that 37.1% were disapproved by registering reading
lower than the reference, with sub-metering ranging from -0.7 to 31.1%. It was
observed that some older water meters had better metrological performances than
the newest ones, and if a replacement without criteria be held, it may result
increase in an apparent losses with a reduction of incoming rather than benefits.
This study enabled the creation of a sequence of groups of lowest water meter
metrological performance, and its replacement will result in an increase in micromeasured
volume, reducing the rate of apparent losses and, consequently,
increasing the amount billed.
Descrição
Palavras-chave
Medidor de água, Perdas aparentes, Submedição, Hidrômetro, Water meter, Apparent loss, Under-measuremen, Hydrometer
Citação
SCALIZE, Paulo Sérgio; LEITE, Wellington Cyro de Almeida; CAMPOS, Marcus André Siqueira. Substituição racional de hidrômetros em sistemas de abastecimento de água. Revista Eletrônica de Engenharia Civil, Goiânia, v. 9, n. 3, 2014. Disponível em: <https://www.revistas.ufg.br/reec/article/view/31378/17644>.