Navegando por Assunto "Perda de água"

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Acesso aberto (Open Access)
Avaliação da operação e estimativa das perdas de água e de energia elétrica no 3º setor de abastecimento de água da região metropolitana de Belém
(Universidade Federal do Pará, 2006-12-27) BARRETO, Gilberto Caldeira; PEREIRA, José Almir Rodrigues; http://lattes.cnpq.br/9918600634569244
Evaluation of the operation and the determination of the loss of water and energy of the 3rd sector of water supplying of Belém metropolitan region. This search was developed in the period of January to December of 2006, in three phases. In the first phase was theoretically determined the operational standard, to make possible the comparison between the results obtained in the second phase, in which one was developed monitoring activities in the water´s reservation and elevation unities. In the third phase was estimated the loss of water and electric energy in the 3rd sector. The results made possible observe that the lack of tools to monitor and control of the standard operational, and the insufficient capacity of the elevated reservoir, results in operations without planned routine, what produces loss of water and electric energy. The volume of lost water was estimated in 423.847 m³/month, what represent 42,58 % of the total volume distributed (989.580 m³/month). The value that the COSANPA does not gain per month with this loss are R$ 508.616,00. The loss of energy referring to the volume of lost water in the 3° sector was estimated in 105.962 kWh/month, what represent a medium cost of R$ 21.192,4 per month or R$ 254.308,8 per year.
Acesso aberto (Open Access)
Avaliação de perdas de água do sistema de abastecimento de água da Cosanpa, na Região Metropolitana de Belém-PA
(Universidade Federal do Pará, 2006-03-30) VELOSO, Thomás Pinheiro; BARP, Ana Rosa Baganha; http://lattes.cnpq.br/0286183914646934
This work has as objective to analyze the water losses in the supplying system of the COSANPA that takes care of to the demand of the Metropolitan Region of Belém (RMB), emphasizing the importance that the process of formation and the urban growth of the RMB has in relation the water losses, in the measure where this process forced the COSANPA to take care of to a number each bigger time of users with improvised workmanships, taking the prevalence of the improvisation and the empiricist in the operation of this system. The research was carried through for all the area of the RMB, since it would be impossible to determine the losses index for an isolated sector, in result of the absence of sectoring of the net of water supply that makes it difficult the attainment of more necessary operational information. The methodology used for the determination of the losses index of the system of water supply of the COSANPA in the RMB, was based on the study carried through for Silva et al (1998) for the National Program of Combat to the Wastefulness Water (PNCDA) and that in 2004 it was revised by Marcka (2004). The results gotten with the determination of the losses pointers of basic and average level of complexity reflect the fragility of the COSANPA through highest losses index, that besides being related the structural problems, are aggravated by the operational deficiencies of this system. One concludes that measured as the sectoring of the net of water supply, hydrometer, update of register in cadastre, use of new technologies for detention of emptyings and frauds and the operational qualification, with the manual technician creation, are combat tools the actual and apparent losses that can change the current picture of the COSANPA.
Acesso aberto (Open Access)
Estudo das perdas de água no sistema de abastecimento e nas residências do conjunto Benjamim Sodré
(Universidade Federal do Pará, 2009-08-07) VIÉGAS, Alessandro Abadessa; MACHADO, Luiza Carla Girard Teixeira; http://lattes.cnpq.br/9773700229115395
This work presents a study of water losses in the water supply system of Benjamim Sodré Sector. The work was divided in two steps, as follows: experimental step and results step. Later, data were evaluated and the main results have focused on: characterization and evaluation of the consumers register, revenue and measured water from the down categories of the sector, as well as, the Water Supply System water flows. Besides that, it was made the calculation of some basic performance indicators, such as (index): water loss in the distribution (70,04%), water loss in the revenue (70,61%), water gross loss linear (157,96 L/m.d), connection water loss (1.446,41 L/connection.day), measurement (72,27%) and the global losses (70,93%). Also, it was possible to know the socioeconomic level of the population (30%) of the down categories R2 and R3 of the sector (176 houses), in which the results showed that about 94% of the interviewees who pay only the water bill affirmed to practice waster losses in their houses. The water quality was also analyzed. And it was verified that about 71,50% of the interviewees have considered it bad quality, which may contribute in a important way to the occurrences of Transmissible Hydric Diseases, because it was verified that 24% of the population presented problems concerning to diarrheas, worms, hepatitis A and scabies in the last years. It was made an evaluation of the water uses in the several domestic activities of the down categories R2 and R3. There is a loss of R$ 426,38 per month in the water bill of all consumers that contribute to water leaks in their homes. Finally, it is shown that for the activity of washing the dishes the consumer would have a reduction on the water bill average value of 89,28%. Additionally, to take bath: 43,66%, to wash clothes: 34,23%, to wash the sidewalk: 84,80%, and to brush their teeth 17,06%, referring the down categories R2 and R3.
Acesso aberto (Open Access)
Vazamentos na rede de distribuição de água: impactos no faturamento e no consumo de energia elétrica do 3° setor de abastecimento de água da região metropolitana de Belém
(Universidade Federal do Pará, 2009-06-18) CARMO, Félix Junior Justino do; PEREIRA, José Almir Rodrigues; http://lattes.cnpq.br/9918600634569244
Analysis of the estimate of losses billing of electric energy due the leak in the net of water distribution of the 3rd sector, managed by the Companhia de Saneamento do Pará (COSANPA) in the metropolitan region of Belém (RMB). The search was held done in 5 (five) stages. In the stage 1 was identified the month with major occurrence of leak in the period of May 2006 at Abril 2007, for detailing of the occurrences (local, diameter of the net and occurrence time of each leak) in the second phase. After it was estimated the flow (phase 3) and the volume lost (phase 4) in the net of water distribution of the 3rd sector. Finally in the phase 5 was estimated the losses of billing and electric energy. The results obtained show the necessities of deployment of a programme of reduction of losses in the net of water distribution of the 3rd sector. The greater volume of lost water occurred in the month of November 2006, causing loss of turnover of R$ 20.906,32 corresponding to the volume of 14.933,08 m3 and the electric energy on the value of R$477,80 correspond at 2.389,93kWh. With the work was possible see that the leaks in the net of water distribution of the 3rd sector damage the system performance and the revenue of the company.