The irregularity of water consumption in settlements with varying numbers of inhabitants

Ewa Ogiołda,Ireneusz Nowogoński,D Słyś,J Dziopk

doi:10.1051/e3sconf/20184500059

Ewa Ogiołda, Ireneusz Nowogoński + Show 2 more

Open Access

https://doi.org/10.1051/e3sconf/20184500059

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Abstract

The article presents an analysis of water consumption in selected settlement units of Lower Silesia and Lubuskie Provinces, with the number of inhabitants varying from less than 200 to more than 8000. Based on data over several years, values characterizing water consumption in individual systems were calculated, i.e., the indicator of water consumption per capita as well as hourly and daily irregularity coefficients. Consumption during various time frames – in individual months of the year, days of the week and hours of the day - was also compiled. The obtained results were the bases for comparison with values provided by Guidelines, which are the basis for calculating for water demand; and Regulation, which is the basis for billing water consumption, as well as with the results of other authors. Tendencies characterizing water consumption in the subsequent years were also indicated. A typical weekly and daily (24-hour) course of consumption was observed, with the course being characteristic of small settlements with varying numbers of inhabitants.

Highlights

The demand for water is the basis of dimensioning individual elements of water supply systems
Using data from a period of 8 to 17 years pertaining to water consumption in 7 water supply systems, accounting for formulas (1), (2) and (3), the values of indicators characterizing water consumption in terms of the amount and irregularity were calculated
The values of water consumption per capita in the analyzed systems were higher for systems with a greater number of recipients, which may be connected with the class of sanitary equipment

Summary

Introduction

The demand for water is the basis of dimensioning individual elements of water supply systems. In Poland, limited water consumption has been observed for many years which may result from the use of water meters to measure water consumption and increased prices of water. The values of actual water consumption serve as the basis for characterizing and comparing individual systems as well as reflecting the habits and lifestyles of the water recipients using them. Water consumption is characterized by both its quantity as well as irregularity in various time frames, i.e. a year, week or day [2, 3]. The specifics of water consumption in a given system, as well as differences between forecasted and actual values, are reflected in the level of hydraulic and quality parameters characterizing the system and are decisive to its proper exploitation and, as a consequence, its operational reliability [4]

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