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Infiltration - the elementary hydrological process
Salač, Jan ; Doležal, Petr (referee) ; Kameníčková, Ivana (advisor)
The bachelor thesis deals with the evaluation of water infiltration into the soil in the area of interest of the village Šakvice. Measurements were carried out on 13 May 2009 and 10 September 2009 on arable land with convential tillage (with ploughing). For measurements were used double ring infiltrometers. To evaluate the cumulative infiltration and infiltration rate were used equations of Kostjakov, Mezencev, Philip and three-parameter equation of Philip‘s type. The results were processed numerically, plotted and then compared.
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Measurement of infiltration in the field using MiniDisk infiltrometer
Vláčilíková, Michaela ; Doležal, Ing Petr (referee) ; Kameníčková, Ivana (advisor)
The diploma thesis deals with measuring of infiltration by MiniDisk method and its evaluation, but also with analysis of intact and grab soil sample, by means of which it is possible to assess the soil quality. The measurements took place on 30.4.2019, 4.5.2019, 12.5.2019, 2.6.2019, 30.6.2019, 2.7.2019, 31.8.2019 and 21.9.2019 on grassland near the town of Luhačovice. Grab and intact soil samples were taken from the upper soil layer and processed in a pedological laboratory. The Zhang method was used to evaluate the infiltration results. The results of soil analyzes and infiltration were processed numerically, plotted and subsequently described and compared.
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Determination of hydraulic characteristics of soil in a selected area
Salač, Jan ; Doležal, Petr (referee) ; Kameníčková, Ivana (advisor)
The diploma thesis is focused on issues of measurement and evaluation of hydraulic characteristics of soil. In the literary research, the definitions of hydraulic conductivity and retention curve of soil moisture, their measurements in laboratory and field conditions and the prediction of these characteristics by using of pedotransfer functions. In the practical part of the diploma thesis, an evaluation of the hydraulic conductivity of soil from the experimental areas near the village Bohaté Málkovice. Two-cylindrical and mini-disc infiltration meters were used for field measurements, and a constant-gradient permeameter was used in the laboratory. Physical and empirical equations were used to evaluate the hydraulic conductivity. The results were processed numerically, tabulated and then compared.
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Analysis of properties of openings with respect to infiltration in buildings
Zapletal, Miroslav ; Klepárník,, Jan (referee) ; Polášek,, Josef (referee) ; Šťastník, Stanislav (advisor)
The dissertation thesis is primarily focused on the analysis of the properties of openings constructions with respect to infiltration in constructions, specifically related to the permeability of opening fillings and the permeability of buildings. The main aim of this work is to find out how the overall air permeability of a building can be influenced in relation to the openings and their properties, which are related specifically to the air permeability at the specified tightening degree of the used all-round fitting. In relation to the overall air permeability of the building, the energy balance of a particular building will be calculated in cooperation with the determined results of the air permeability of the building at a defined degree of tightening of used all-round fitting at levels 0%, 50% and 100%. The results of tests and measurements will be reflected in a concrete calculation of the energy balance of the assessed building in the form of numerical simulation.
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The design of the small water reservoir
Galuška, Martin ; Hyánková, Eva (referee) ; Doležal, Petr (advisor)
The concept of this work is to assess options of a small water reservoir design on the selected area Bezměrov. Part of the work refers to different types and functions of small dams and their water management solutions. There is a geological survey presented which is describing the composition of the soil layers and investigating available materials for dam constructions. Water balance has been processed for considered dam profiles evaluating specific outflow of the catchment area, vapor and leakage through a simplified design of the dam. That creates a basic conception about possibilities of water manipulation in this area. Based on this evaluation there are several options processed to explore the retention effects of this two small water reservoirs system above Bezmerov locality.
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Effects of water erosion on selected physical properties of soil
Larišová, Lucie ; Toman,, František (referee) ; Hlavčová,, Kamila (referee) ; Dumbrovský, Miroslav (advisor)
The aim of the dissertation thesis is the assessment of the degradation of selected soil properties due to water erosion, including the temporal dynamics of these properties and the assessment of how this change affects the cumulative infiltration of the soil in watershed. Between 2012 and 2015, undisturbed and disturbed soil samples were collected on three experimental areas and the cumulative infiltration of the soil was measured. Experimental areas were selected on sloping, erosion-endangered blocks of arable land, in three cadastral territories of the Czech Republic, and this in the cadastral areas of Větřkovice, Čejkovice and Hustopeče. The cumulative infiltration was measured in three landscapes positions of the slope and soil samples were collected in three landscapes positions of the slope, at soil crust, topsoil and subsoil. In the Pedological Laboratory at the Institute of Landscape Water Management, Brno University of Technology, the particle density, bulk density, porosity, soil texture and water stable aggregates were determined from the samples taken. The cumulative infiltration of the soil was measured using the Double Ring Infiltrometer, the Mini Disc Infiltrometer and the mobile rainfall simulator. Using one-way analysis of variance to analyze the differences among soil samples and infiltration test. In addition, the dependence of soil crust formation, its physical properties and its influence on the cumulative infiltration of the soil were monitored on the areas.
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Study of possibilities protection against rural zone water
Burešová, Erika ; Roubcová, Radka (referee) ; Milerski, Rudolf (advisor)
This thesis is divided into two parts. The first part of thesis deals with the problems of surface runoff, determination of surface runoff and measures to eliminate consequences of surface runoff. There is also mention of water erosion which is an accompanying phenomenon of surface runoff. The second section paper examines the threat to area in the Napajedla city of water. There are two possible solutions to the protection of the territory. For the valuation is used directive to calculate to the drain age of VMP and software HEC-RAS 4.1.0 for assassment the capacity of water equipment.
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Warm air heating systems in family houses
Jankůj, Josef ; Hejčík, Jiří (referee) ; Košner, Jan (advisor)
The aim of my work on the theme “Warm air heating systems in family houses” is to summarize used systems, it´s individual components, pass judgment on preferences and shortcomings of this systems. First part is oriented on general familiarization with air rating, examination advantages and disadvantages against classic warm-water system. Second part put mind to elementary systems of airing buildings, their parting and identification with their particular principle.
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Operation of rain gutters
Chotová, Tereza ; Balas, Jan (referee) ; Hluštík, Petr (advisor)
The diploma thesis is divided into two parts. The first theoretical part focuses on rain gutters, their distribution, operation and cleaning. The pollution, pre-treatment of rainwater and rainwater management are alco described here. The second practical part includes testing of selected street rain gutters in the institute of municipal water management laboratories (VHO). Furthermore, these rain gutters are compared and evaluated according to these criteria: filter construction, amount of captured material and cleaning system.
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