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Evaluation of water losses for the selected pressure zone of the city of Brno
Konečný, Pavel ; Dvořák,, Pavel (referee) ; Tuhovčák, Ladislav (advisor)
Water losses indicate the amount of water leaked out of the water distribution systém. Loss monitoring is one of the basic obligations of operators. Their size points to technical states and network operations, and at the same time is decisive for returns on future investment. Loss reports have recently recorded several changes. Values that describe the amount of unique leakage are continuously more often being used with traditional percentage data on losses related to the overall volume of supplied water.
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Technical autid of water supply infrastructure
Straková, Eliška ; Ručka, Jan (referee) ; Tuhovčák, Ladislav (advisor)
This bachelor thesis deals with the topic of evaluating the technical condition of selected elements of water supply infrastructure. In the theoretical part of the thesis are listed the legislative requirements for evaluating the technical condition of water infrastructure, factors affecting the technical condition and methods used for evaluation in the Czech Republic and in the other countries. The methodology of technical audit and software application TEA Water were used for the elaboration of the practical part of thesis. Specific modules are described in thesis in more details and then applied to a selected drinking water supply system.
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Analysis of Water Consumption
Pokorná, Denisa ; Ručka, Jan (referee) ; Tuhovčák, Ladislav (advisor)
The subject of the bachelor thesis is the processing of water consumption analysis in the area of building faculty. The bulk of the work is devoted to the evaluation of the data obtained by the smart metering system, which is currently only installed on the billing water meter number 2 located on Veveří Street. The Faculty of Civil Engineering is very interested in new trends and possibilities to more effectively measure water consumption. The conclusion of the thesis deals with the appropriate design of the alarm values of consumption and the possible counting of other water meters in the area and associated faster and more transparent information about the water consumption values. An integral part of the work and water consumption are general information on the need for water for which there are no up-to-date comprehensive methodologies to accurately determine it. Analyzing already measured data seems to be the most accurate way of determining it. Part of the thesis is also a chapter focused on the development of water consumption in our country as well as in comparison with abroad. At present, there is a decreasing trend in water needs that began in the 1990s.
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Measurements of small flow in water service connections
Stehlíková, Veronika ; Ševčík, jiří (referee) ; Tuhovčák, Ladislav (advisor)
In the first part of this thesis the basic information about the losses of water and their reporting are described. There are presented the means and methods of reducing water losses and their suitability for use. Finally, general information about water meters are presented and the UFR device is briefly described. The second part of the thesis is devoted to testing water meter and UFR device on specific water connection in a family house. The thesis resulted in the author's general recommendations for owners and operators of water supply networks.
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Energy audit of water supply
Pavliš, Jan ; Tuhovčák, Ladislav (referee) ; Kučera, Tomáš (advisor)
This document aims on presentation of energy audit of water networks. Its focus is to introduce the method of solving the energy audit of water networks. It characterizes the water networks performance using context and efficiency indicators. It consists of theoretical description of mathematical approach to the problem. It describes different kinds of energies participating in water distribution process and also presents energy indicators which describe energetic efficiency of water networks. Last but not least it shows the possibilities of accomplishment the energy audit of water network on numerical example. Then we can find the assessment of each of indicators and kinds of energies. Context indicators describe topography of water network and efficiency indicators show how efficient in terms of using input energy is the behavior of the water networks. The case application of the approach of solving energy audit of water networks as well as indicators assessment can be found in the last part of the thesis. This thesis brings basic overview of the approach to the solution of energy audit of water networks. May it help the future application of the energy audit of water networks in the Czech Republic.
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Performance indicators of selected water utilities in Czech Republic
Vaculík, Tomáš ; Sucháček, Tomáš (referee) ; Tuhovčák, Ladislav (advisor)
This Bachelor thesis id focused on comparative analysis performance indicators of chosen water companies in the Czech Republic. The first task of this assignment was collecting and processing of basic and supplemented indicators of chosen water companies. These indicators were recorded to the file created in excel. All data of all companies are freely available on the internet page: www.justice.org, where these companies are required to post their annual reports. In the first part of this bachelor thesis, organizations are described, companies and applications dealing with the issue of comparative analysis in the water companies. Representatives are elected from the foreign sector (IWA, IBNET, EurEau, EBC), as well as from the home sector (SOVAK, Metodika MZe, WaBe). The second part of this thesis begin with presentation of all companies, which is provided with comparative analysis. Analysis were from the biggest part processed by the application WaBe. For the better overview of this work, graphs made in application excel were added to this analysis.
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Technical Audit and Risk Assessment of Water Tanks
Tanistrová, Lucie ; Komínek, Jiří (referee) ; Tuhovčák, Ladislav (advisor)
The diploma thesis is primarily focused on risk analysis and risk assessment of drinking water supply systems. In the research, the issues of risk analysis and risk assessment considering world and Czech Republic, were summarized. Software WaterRisk, which was developed by BUT Brno, was used for risk assessment of a particular water supply system in Třebom. Next, the thesis is aimed on technical audit of water tanks. There was a research of technical audit in the world and in the Czech Republic. Also assessment of technical audit of a particular water tank, which had to be anonymized, using software TEAwater is described in detail. Two conditions were considered: before and after reconstruction.
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Using Artificial Neural Network Models to Assess Water Quality in Water Distribution Networks
Cuesta Cordoba, Gustavo Andres ; Tuhovčák, Ladislav (advisor)
A water distribution system (WDS) is based in a network of interconnected hydraulic components to transport the water directly to the customers. Water must be treated in a Water Treatment Plant (WTP) to provide safe drinking water to consumers, free from pathogenic and other undesirable organisms. The disinfection is an important aspect in achieving safe drinking water and preventing the spread of waterborne diseases. Chlorine is the most commonly used disinfectant in conventional water treatment processes because of its low cost, its capacity to deactivate bacteria, and because it ensures residual concentrations in WDS to prevent microbiological contamination. Chlorine residual concentration is affected by a phenomenon known as chlorine decay, which means that chlorine reacts with other components along the system and its concentration decrease. Chlorine is measured at the output of the WTP and also in several considered points within the WDS to control the water quality in the system. Simulation and modeling methods help to predict in an effective way the chlorine concentration in the WDS. The purpose of the thesis is to assess chlorine concentration in some strategic points within the WDS by using the historical measured data of some water quality parameters that influence chlorine decay. Recent investigations of the water quality have shown the need of the use of non-linear modeling for chlorine decay prediction. Chlorine decay in a pipeline is a complex phenomenon so it requires techniques that can provide reliable and efficient representation of the complexity of this behavior. Statistical models based on Artificial Neural Networks (ANN) have been found appropriated for the investigation and solution of problems related with non-linearity in the chlorine decay prediction offering advantages over more conventional modeling techniques. In this sense, this thesis uses a specific neural network application to solve the problem of forecasting the residual chlorine
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