Sekundarni povzetek: |
This thesis deals with the optimisation design of the Litija section on the middle Sava River where
Ponovice derivation hydro power plant is being planned. The aim of the thesis is to propose an overall
solution for the discussed area from the hydropower, spatial development and environmental point of
view. In the introduction, the importance of hydroelectric energy in the Republic of Slovenia is
described, as it is the far most important renewable energy source in this country. Energy policy is
stated in the national energy programme – a strategic document with long-term development targets
and directives. Among the most important projects, there is also the construction of HPP on the middle
Sava River that will complete the chain of power plants on the Sava River. This thesis contains the
detailed description of the chain design, concession regulation, operational regime, designed facilities
and regulations. The empirical part constitutes the solutions for the Litija area. The Ponovice
derivation HPP will cause the redirection of the original Sava River stream through the derivation
tunnel to the engine room in Ponovice. This is why the flow of water and water level in the stream
through Litija will reduce which will change the water course and the environment of the town
alongside the Sava River significantly being one of the main concerns of the local population. As a
solution to these concerns, 2007 the Faculty of Civil and Geodetic Engineering and the company
Geateh prepared the pre-investment technical spatial documentation for HPP on the middle Sava River
providing the construction of two small dams. In this thesis, the suggested design was analysed, the
mathematical hydraulic model of the existing situation and suggested solutions were made and it was
ascertained that the optimisation with three smaller broad crested weirs is possible. The model resulted
in profiles that enable the comparison between designed regulations. This new design affects less the
physical environment and is therefore preferable as well as it assures higher dam river level alongside
the town. The engine room was redesigned with Straflomatrix turbines. The dam-barrage was
designed as a broad crested weir with a rubber membrane. For the analysed section, we suggested new
regulations of river surrounding in order to get new recreational surfaces and tourism potential for
further development. |