|
|
Hydrokinetic swirl turbine
Fryčar, Michal ; Veselý, Jindřich (referee) ; Haluza, Miloslav (advisor)
There has been a notable increase in interest in renewable energy harvesting over the past two decades. This has been accompanied by the emergence of new technologies and research, which are driving developments in this area forward. One of the sources is also kinetic energy of river streams and tidal currents. The aim of this thesis is to formulate fundamental equations for the utilisation of kinetic energy of water and to design a hydraulic model of a swirl turbine runner. A further aspect of this thesis is to verify the previously formulated equations in the computational modelling software Ansys CFX and to analyse the effect of the draft tube on the power output of the turbine.
|
|
|
Hydraulic solution of the swirl turbine for locality of Rosenauer mill
Pavlíček, Tomáš ; Veselý, Jindřich (referee) ; Haluza, Miloslav (advisor)
This thesis focuses on the design of a swirl turbine for the site of Rosenauer Mill, where the gross hydraulic head HB is 1 m and the flow rate is Q is 1.6 m3/s. The beginning of the work is dedicated to microturbines and explains why a swirl turbine is suitable for this location. The procedure applied for developing the hydraulically active surfaces of the turbine is then presented. Firstly the design of the blades is based on analytical formulas, which are further refined using the CFX Ansys program. The turbine is closely affected by the inlet and draft tube, therefore their design is also included in this thesis. The hydraulic calculations yield the resulting parameters and characteristics of the designed turbine, calculated from the entire assembly using CFD computations. The final section of the work is devoted to the design of main structural components such as the gear, shaft, and bearings. The hydraulic design developed in this thesis serves as the basis for implementing the swirl turbine and constructing a small hydraulic power plant at the Rosenauer Mill.
|
|
|
Design of small hydropower plant for specific location.
Paštěka, František ; Rudolf, Pavel (referee) ; Štigler, Jaroslav (advisor)
This master's thesis is specialised in designing of small hydropower plant for specific location. In work should be designed suitable turbine for parameters found on the site, then created a basic project documentation of small hydropower plant with all devices and used principles, so that the plant would be capable of operation. In the next part of thesis should be extented the calculation of flow in the turbine delivery and assessed effect of geometry of turbine delivery on the flow.
|
|
| |
|
|
Improving of hydraulic properties of swirl turbines
Kůrečka, Jan ; Veselý, Jindřich (referee) ; Haluza, Miloslav (advisor)
This diploma thesis describes design of blade geometry of swirl turbines with different blade row density for given parameters Q11 = 1,9 [m3s-1], n11 = 170 [min-1], H=2,5 m, and =0,8. Goal is to found out differences between designs with high count of runner blades and design with fewer blades. Comparison of computed characteristics of three, seven and nine bladed runners is given.
|
|
|
The swirl turbine design for small water power Hovězí.
Oliva, Štěpán ; Neumayer, Oldřich (referee) ; Haluza, Miloslav (advisor)
The aim of this work was to develop a proposal regarding hydro-energy potential of small flows of water through the city „Hovězí near Vsetín“. The available water energy was used for running a Swirl Turbine featuring a siphon arrangement. This new concept makes use of a modified Kaplan Turbine, operating at small water heads. It operates also at higher revolutions and has higher discharge.
|
|
| |
|
|
Hydraulic properties of siphon and direct flow swirl turbine
Hudec, Martin ; Šulc, Jan (referee) ; Veselý, Jindřich (referee) ; Habán, Vladimír (advisor)
Non-stationary processes are associated with the operation of water machines. They are important for their reliable and safe operation. Prediction and modeling of such states using a 1D mathematical model verified on a model in the laboratory is an advantage. The work is focused on the description of a pair of transient states that are related to siphon turbines and their operation. Determination of critical flow values for inducing a suction effect and, conversely, calculation of the minimum size of the flow coefficient for safe stopping. The experiments were performed on a laboratory model and compared with operational data from a small hydroelectric power plant Želina.
|
|
|
Modal analysis of the swirl turbine runner
Valo, Lukáš ; Fic, Miloslav (referee) ; Čupr, Pavel (advisor)
The bachelor’s thesis deals with modal analysis of the swirl turbine runner. The main aim was to determine natural frequencies and mode shapes of the turbine runner. Both detailed and simplified models of geometry of the turbine runner were analysed for two types of boundary conditions. The ANSYS program was used to carry out numerical simulations. Experimental measurement was realised to verify and to compare results of calculations.
|
|
|
The project of turbines for small water power plant
Dolinský, Filip ; Machů, Tomáš (referee) ; Haluza, Miloslav (advisor)
Bachelor thesis deals with usage of hydropower potential of river profile by small hydro powerplant, sollution by Archimedes and Swirl turbines is designed. In the first part, current status of hydro powerplants in Slovakia is described and obligations of the Slovak republic to the EU are analyzed. In the second part, basic division and knowledge about Screw and Swirl turbine are sumarized. The third chapter deals with design, calculations and comparison of different kinds of turbines. Most optimal sollution is analyzed, design parameters are elaborated and building cost and return of investment are calculated.
|
guest ::
