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Turbogenerators in nuclear power plants
Oulehla, Jan ; Kracík, Petr (referee) ; Milčák, Pavel (advisor)
The aim of this thesis is to prove the viability of analytical methods for evaluation of thermodynamical properties of steam in the turbogenerators by calculation and comparison with the real data from NPP Dukovany. Calculation is seconded by a brief introduction to the principle of electricity generation in nuclear power plants and description of primary, secondary and terciary circuit of NPP Dukovany. Substantive part is also analysis of often used turbogenerators and their comparison with those used in classical thermal power stations.
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Turbogenerators in nuclear power plants
Oulehla, Jan ; Kracík, Petr (referee) ; Milčák, Pavel (advisor)
The aim of this thesis is to prove the viability of analytical methods for evaluation of thermodynamical properties of steam in the turbogenerators by calculation and comparison with the real data from NPP Dukovany. Calculation is seconded by a brief introduction to the principle of electricity generation in nuclear power plants and description of primary, secondary and terciary circuit of NPP Dukovany. Substantive part is also analysis of often used turbogenerators and their comparison with those used in classical thermal power stations.
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Současný stav vybraných mokřadů na Velkomeziříčsku a změny v druhovém složení rostlin po 20 letech
Oulehla, Jan
The final thesis deals with the floristic and phytosociological research of the three wetland sites near the village Netin (Zdar nad Sazavou district area). The thesis examines the state of flora and vegetation in the present. Specifically, there is a comparison of threatened species of plants recorded nowadays with approximately 20 year-old available data. Based on the recent and historical data, Pod Vrkocem wetland shows an improving state of the locality. The worse situation is evident in the location Pod Ochozem, where considerable reduction of endagered species was recorded. The worst situation is in the location Niva (Zatoky creek area), where the negative impact of overgrown trees and expansive vegetation at the expanse of valuable flora is evident. The amount of endangered and protected species has been recorded in all three locations. The thesis includes the detailed vegetation maps, the lists of identified species, phytosociological plots, photographs and herbarium specimens. There is a special focus on recommendation for improving or maintaining the condition for each location. The results of this study reflect a current situation of the studied wetland meadowsand marshes in the region and indicate the changes in vegetation structure resulting from the management in the locations in recent years. Consequently, the results will be a good basis for nature conservation in studied locationsand further biological research.
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Degradace mokřadní vegetace na Velkomeziříčsku a možnosti její obnovy
Oulehla, Jan
The thesis deals with degradation of wetland vegetation in the southeastern Bohemian-Moravian Highlands. Based on detailed historical data, a comparison between the historical (20 years ago) and current state of selected wetland sites in the vicinity of Velké Meziříčí town was made. Historical development, current vegetation description and comparison with the historical situation are described for each locality. The results of the work are based on the testimony of witnesses, consultations with the author of the main historical source, maps and own floristic and phytosociological surveys that took place in 2015–2018. 23 sites were resurveyed in total, where 20 of them were found as more or less degraded. Seven of the wetland sites disappeared at all. Furthermore, local extinction is illustrated on six selected endangered wetland species. An integral part is the identification of the causes of degradation, where vegetation succession following the absence of management, drainage and nutrient input (eutrophication) are of the highest importance. Restoration options based on practical examples of good care are described to solve degradation. Phytosociological plots, photographs and lists of found species can be found in the annexes.
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