Browsing by Subject "flow"

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Analiza pracy małej elektrowni wodnej
(Data obrony: 2018-01-23) Wojcieszko, Maria
Wydział Geologii, Geofizyki i Ochrony Środowiska
W pracy przedstawiono analizę pracy małej elektrowni wodnej na Stopniu Wodnym „Kościuszko”. Wyjaśniono pojęcie elektrowni wodnej, zasadę działania małej elektrowni wodnej, przedstawiono podziały elektrowni wodnych. Przedstawiono także rodzaje turbin wodnych wchodzących w skład turbozespołach w elektrowniach wodnych oraz podstawowe parametry, które określa się przy analizie pracy. Stworzona symulacja przepływów w elektrowni w poszczególnych miesiącach roku na podstawie przepływów charakterystycznych posłużyła do obliczenia mocy elektrowni i wyprodukowanej energii elektrycznej. Porównano średni przepływ w roku standardowym, mokrym i suchym na podstawie danych o wyprodukowanej energii. Wykonano analizę ekologiczną, czyli unikniętą emisję dwutlenku węgla, dwutlenku siarki, tlenków azotu, tlenku węgla, pyłów całkowitych i uniknięte zużycie węgla kamiennego dzięki produkcji czystej odnawialnej energii elektrycznej w elektrowni wodnej. Wykonano też przybliżoną analizę ekonomiczną pracy elektrowni.
Access status: Open Access ,
Concept of production facilities layout in company Alumin, s.r.o. Slovakia
(AGH University of Science and Technology Press, 2011) Straka, Martin
The aim of part of the solution layout processing company is an analysis of the existing system of distribution of production equipment company, identification of material flows and showing the possibility of modifying the layout of production facilities in compliance with capacity, safety and quality requirements for production.
Access status: Open Access ,
Odra River in Lower Silesia - probabilistic analysis of flood risk dynamics as part of sustainable development of water management
(Wydawnictwa AGH, 2018) Kuźmiński, Łukasz; Halama, Arkadiusz
One of most common natural catastrophes in Poland are undoubtedly floods. Climatic change contributes to more and more often and violent occurrences of the maximum flow in rivers, which increases flood damage. Inadequate land management and the unjustified belief in the effectiveness of technical flood control measures can also contribute to flood damage. The development of water management (including flood protection) should be carried out in a sustainable way by integrating social, environmental, and economic objectives. In flood protection, those measures that are least invasive to the natural environment should be used first, in particular, non-technical flood protection methods (e.g., flood risk assessment and management, and the proper definition and management of flood plains). One of the bases for the sustainable development of water management is the preparation of models that can help us calculate the likelihood of maximum flow and to identify areas that are at risk of flooding. On this basis, the proper spatial policy and prevention of flood effects will be possible. This article presents the probabilistic analysis carried out on the flood risk dynamics for a selected area of the Odra River basin. The authors based their risk dynamic assessment on the results from the distributions of the maximum values for a selected hydrological characteristic - the flow rate. Based on the daily flow data from the years of 1994-2013 collected at a hydrological station on the Odra River in Malczyce, the 30-day flow maxima were set individually for four 5-year periods. Then, a probabilistic model of the maximum flow was developed based on these peaks for each 5-year period. The resulting models were used to estimate flood risks and for analyzing the dynamics for the studied area.
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Przepływ informacji przestrzennej i prawnej pomiędzy katastrem i księgami wieczystymi
(Data obrony: 2013-01-19) Stefański, Przemysław
Wydział Geodezji Górniczej i Inżynierii Środowiska
Access status: Open Access ,
Topological approach to chain recurrence in continuous dynamical systems
(2005) Oprocha, Piotr
In this paper we present equivalent definitions of chain recurrent set for continuous dynamical systems. This definitions allow us to define chain recurrent set in topological spaces.
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Uwarunkowania ekonomiczno-ekologiczne budowy małej elektrowni wodnej
(Data obrony: 2012-07-13) Lech, Przemysław
Wydział Geologii, Geofizyki i Ochrony Środowiska
This thesis depicts the ecological and economical conditions of construction of small hydro power plant. Also the individual elements of the plant were described. The focus is on the example of an existing small hydro power plant located in Przewóz (Kraków). Were calculated amount and monetary value of generated electricity. The ecological effect of the investment was calculated. Also the profitability of the construction of small hydro power plant was estimated.
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Wpływ oczyszczalni ścieków w Brzesku na jakość wody rzeki Uszwicy
(Data obrony: 2011-07-21) Gaczoł, Ewa
Wydział Geologii, Geofizyki i Ochrony Środowiska
The main topic of the thesis is the environmental impact assessment of the wastewater treatment plant in Brzesko on the water quality of the Uszwica river during variable flows of water. Water samples was taken at two points, located above and below the wastewater treatment plant respectively, in the period from June to October 2010. Then, samples were subjected to laboratory analysis by the Ion chromatography method to determine the concentration of anions F-, Cl- NO3- i SO42- . Results of this analysis showed that the most important influence of wastewater treatment plant is observed in during low flow when the dilution of sewages discharged to the Uszwica water is greatly reduced. In such conditions, in point below the wastewater treatment plant, concentrations of ions Cl- i NO3- were nearly twice, and in case of F- even three times, higher than in point above the plant. A significant correlation between the flow and the concentration of selected anions is confirmed by high correlation coefficients, and a full correlation between pairs of anions F--Cl-, Cl--SO42-, F--SO42- in point below the treatment plant, indicates a common source, associated with discharge of treated wastewater.
Access status: Open Access ,
Wyznaczanie okien czasowych do obliczania parametrów przepływu w tomografii elektrycznej
(Wydawnictwa AGH, 2007) Mosorov, Volodymyr
An algorithm of time interval determination for calculation of flow parameters such as velocity and mass is proposed. The algorithm can be simply applied in an automatic tomographic system performing the monitoring of multiphase flows.