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2 Civil and Environmental Engineering Reports

2 2019

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Estimation of the hydraulic width of the subcatchment depending on the degree of detail of the drainage system model

Nowogoński Ireneusz, Ogiołda Ewa, Musielak Marcin

Civil and Environmental Engineering Reports

2019

Vol. 29, no. 4

128--140

The article presents the current state of knowledge in the field of estimating preliminary values of storm water subcatchment calibration parameters in the case of using the Storm Water Management Model (SWMM) for building a model of storm water drainage system. The key issue is estimating the runoff width in the case of reducing the network structure and storm water catchments due to the shortening of calculation time and simplification of the model calibration process. Correction of one of the recommended literature methods has been proposed. The assessment was based on the real catchment model with single and multi-family housing. It was found possible to apply the proposed method in the case of reducing systems connected in series.

Characteristics of Water Consumption in Chocianów, Parchów and Pogorzeliska, Lower Silesia Province

Ogiołda Ewa, Nowogoński Ireneusz, Pietrzak Przemysław

Civil and Environmental Engineering Reports

2019

Vol. 29, no. 2

13--21

Water consumption is an amount characteristic to individual water sup-ply systems. It is described by values of the unitary consumption of water and unevenness coefficients. An analysis of consumption for the years 2009-2016 in two systems which are diverse in terms of the number of supplied recipients as well as the intended water use is presented. The values of unitary consumption indices as well as hourly and daily irregularity of consumption were calculated, and factors influencing the irregularity of consumption in different time frames indicated. Conclusions regarding the amount and irregularity of consumption were drawn and compared with guidelines and other analysed systems.