Wyniki wyszukiwania - BazTech

1

Water age modeling as a tool to improve the quality and reduce the costs of water treatment in Polanica-Zdrój

Kruszyński Wojciech, Andraka Dariusz, Kaźmierczak Bartosz, Jaroszewicz Katarzyna, Moskal Marcin

Economics and Environment

|

2023

|

No. 3

436--452

EN

The article contains part of the results of the project Protection of Natural Water Resources in Polanica-Zdrój through Intelligent Water and sewage management. The article presents the research results into the water supply network (WDN). The aim of the research was to improve the quality of water and reduce the cost of its treatment by reducing the age of the water. For this purpose, a model was built that takes into account the time in which water stays in a given section from the moment it flows out of the intake and mixes with the water already present in the network. The research was preceded by the construction of a model based on GIS geodetic data and a digital terrain model. On the basis of the simulations and analyses carried out, a solution was proposed to reduce the average age of water in the investigated WDN.

PL

Artykuł zawiera część wyników projektu Ochrona naturalnych zasobów wodnych Polanicy-Zdroju poprzez inteligentną gospodarkę wodno-ściekową. W artykule przedstawiono wyniki badań sieci wodociągowej (WDN). Celem badań była poprawa jakości wody i obniżenie kosztów jej uzdatniania poprzez obniżenie wieku wody. W tym celu zbudowano model uwzględniający czas przebywania wody na danym odcinku od momentu wypłynięcia z ujęcia i wymieszania się z wodą już obecną w sieci. Badania poprzedziło zbudowanie modelu na podstawie danych geodezyjnych GIS oraz numerycznego modelu terenu. Na podstawie przeprowadzonych symulacji i analiz zaproponowano rozwiązanie pozwalające na zmniejszenie średniego wieku wody w badanej WDN i obniżenie kosztów uzdatniania poprzez poprawę jej jakości.

2

Use of hydraulic model in real water loss reduction and water distribution network operational cost lowering

Zajkowski Artur, Wysocki Łukasz, Tuz Piotr, Bartkowska Izabela, Kruszyński Wojciech

Ekonomia i Środowisko

|

2022

|

nr 2

186--202

EN

Most of the small water companies supplying a small number of consumers with water are struggling with the extremely tight budget, often making any large-scale modernisation impossible. In effect network managed by these companies is often very leaky and unreliable. One possible and cheap way of leakage reduction is the reduction of average pressure in the network. Thanks to new computing technologies, the device selection process for pressure reduction is accurate and easy to do. This study uses the hydraulic model to select required pressure reducing valves and correct locations accurately and adequately approximate the resulting absolute water loss reduction thanks to this approach.

PL

Większość małych przedsiębiorstw wodociągowych boryka się z problemami budżetowymi. Mogą mieć one wiele źródeł – obłsuga niewielkiej ilości odbiorców, wysoki poziom strat, konieczność zakupu wody z zewnętrznych źródeł. Czynniki te sprawiają, że wymagane nakłady na modernizacje sieci niejednokrotnie przewyższają możliwości finansowe przedsiębiorstwa. Jednym ze sposobów redukcji rzeczywistych strat wody jest obniżenie średniego ciśnienia w sieci. Dzięki nowym metodom obliczeniowym i symulacjom komputerowym dobór urządzeń redukujących ciśnienie i wybór lokalizacji ich montażu są znacznie ułatwione. W pracy skupiono się na ocenie możliwości wykorzystania modelowania komputerowego podczas wdrażania systemu zarządzania ciśnieniem w sieci wodociągowej.

3

Kohonen Artificial Networks for the Verification of the Diameters of Water-pipes

Dawidowicz Jacek, Czapczuk Andrzej, Kruszyński Wojciech

Rocznik Ochrona Środowiska

|

2021

|

Tom 23

835--844

EN

The design of the water distribution system is inherently linked to the execution of calculations, which aim, among other things, to determine the flow rate through individual pipes and the selection of diameters at the appropriate speed. Each step in the calculations is followed by an evaluation of the results and, if necessary, a correction of the data and further calculations. It is up to the designer to analyse the accuracy of the calculation results and is time-consuming for large systems. In this article, a diagnostic method for the results of hydraulic calculations, based on Kohonen Network, which classifies nominal diameters [DN] on the basis of data, in the form of flows, has been proposed. After calculating the new variant of the water distribution system, the individual calculation sections are assigned to the neurons of the topological map of Kohonen Network drawn up for nominal diameters. By comparing the diameter used for the calculation, with the diameter obtained on the topological map, the accuracy of the chosen diameter can be assessed. The topological map, created as a result of labelling the neurons of the output layer of the Kohonen Network, graphically shows the position of the classified diameter, relative to those diameters with similar input values. The position of a given diameter, relative to other diameters, may suggest the need to change the diameter of the pipe.

4

Computer Modeling of Water Supply and Sewerage Networks as a Tool in an Integrated Water and Wastewater Management System in Municipal Enterprises

Kruszyński Wojciech, Dawidowicz Jacek

Journal of Ecological Engineering

|

2020

|

Vol. 21, nr 2

261--266

EN

The purpose of the study was to present the principles of creating and implementing an integrated water and wastewater management system based on hydrodynamic modeling of water distribution and sewage disposal systems in small and medium-sized municipal enterprises. The computer modeling of water and sewerage networks is an efficient tool for finding the causes of increased costs of operation of these plants. The simulations carried out in modeling programs enable to quickly find the optimal variant to solve the problem of exploitation or economically effective direction of their modernization. Geospatial data (GIS) is being increasingly often being used to optimally manage the municipial water and sewage infrastructure. This gives an additional analytical tool for planning, designing, obtaining operational data, etc. The integration of hydraulic models of the water supply and living and economic networks into one coherent management system is possible, owing to which, a holistic assessment of the functioning of the water and sewage management system in the city is possible. The decision support systems based on the spatial information system (GIS) associated with various specialized software, are becoming the standard of modern management of a water and sewage company. To date, only about 40% of enterprises in this industry in Poland have used systems of this type. In addition, most of the GIS-based management systems used in practice are limited to an inventory of existing network resources and integration of many databases in one coherent IT system. Only in a few cases, the systems of this type contain modules modeling the network operation under dynamic conditions, which results primarily from the additional implementation costs related to the construction of sufficiently reliable models of the water supply and / or sewerage network. Implementation of the proposed solution includes: construction of a water supply network simulation system, construction of a domestic and economic sewage system simulation system, devising scenarios for system operation under the conditions of city development and climate change, multi-criteria assessment of the economic effectiveness of systems operation taking into account social and environmental criteria, development of an integrated management system the system, taking into account the guidelines for increasing the effectiveness of its operation and work safety.

5

Zastosowanie i implementacja cyfrowych danych geodezyjnych do komputerowego modelowania parametrów sieci wod-kan

Kruszyński Wojciech

Rynek Instalacyjny

|

2019

|

Nr 5

27--31

PL

W celu optymalnego zarządzania infrastrukturą wodno-ściekową miasta coraz powszechniej wykorzystuje się dane geoprzestrzenne (GIS). Daje to dodatkowe narzędzie analityczne do planowania, projektowania, pozyskiwania danych operacyjnych itp. Szczególnie ważna jest integracja modeli hydraulicznych sieci wodociągowej i bytowo-gospodarczej w jednym spójnym systemie zarządzania na bazie GIS, dzięki czemu możliwa jest holistyczna ocena funkcjonowania systemu gospodarki wodno-ściekowej w mieście. Większość stosowanych w praktyce systemów zarządzania bazujących na GIS ogranicza się do inwentaryzacji posiadanych zasobów sieciowych i integracji wielu baz danych w jednym spójnym systemie informatycznym.

EN

In order to optimally manage the city’s water and sewage infrastructure, geospatial data (GIS) is increasingly used. It provides an additional analytical tool for planning, designing, acquiring operational data, etc. It is particularly important to integrate hydraulic models of water supply and home-economic networks in a single, coherent management system based on GIS, thanks to which a holistic assessment of the functioning of the water and sewage management system is possible, in the city. The majority of GIS-based management systems used in practice are limited to inventory of existing network resources and the integration of multiple databases in a single, consistent IT system.