The analysis of electrical energy production is one of the basic criteria for determining the economic viability of constructing a small hydropower plant. In order to analyse the electrical energy production, it is necessary to know the hydroelectric power plant as a whole.
The purpose of the diploma thesis is to study the hydrology and consequently the electricity production on the case of the selected small hydroelectric power plant. The result of this is the diploma thesis, which is divided into three main parts.
The first part presents the types of small hydropower plants, divided by power, head range and different site layouts. A hydroelectric power equation of hydropower plant is derived, which is the basis for the analysis of electrical energy production.
The second part describes the components of a small hydropower plant with an emphasis on the turbine types: Francis, Kaplan and Pelton and their efficiencies, which depend on the flow.
The third part presents the basic characteristics of the selected small hydropower plant Kneža. The hydrological data for a given river flow are analysed.
On the basis of the presented data the annual electricity production was calculated in a computer program and a comparison was made between the graphs exemplifying the Francis, Kaplan and Pelton turbines working at the rated power.
The results show different amounts of electric energy production in the selected cases. A variant is identified where the amount of electric energy produced is the greatest.
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