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Simplified computational modelling of biomass grate combustion
Floková, Kateřina ; Vondál, Jiří (referee) ; Hájek, Jiří (advisor)
The aim of this thesis is to assemble simplified computational 3D model for straw grate combustion, based on data provided by detailed computational 1D model. This thesis is organized as follows. Firstly, current state of CFD grate combustion modelling is described. The main body of this thesis is focused on creation simplified 3D model, which includes pressure losses calculation, aproximation of data provided by outcomes of detailed 1D model and analysis of heat transfer during combustion process. Simulation results dealing with radiation heat transfer and heat conductivity are included in conclusion.
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Design of the point supported slab of the house in Olomouc
Velešík, Marek ; Požár, Michal (referee) ; Klusáček, Ladislav (advisor)
The bachelor thesis is focused on the design of the point supported reinforced concrete slab of the apartment building on Litovelská street in Olomouc. The slab is situated above the ground floor. Static calculations are based on internal forces of the computational model created in software SCIA Engineer 17.01. The correctness of computational model was verified by the method of summary bending moments. The main focus of the thesis was design procedures and assessments of point supported slab according to Eurocode 2: Design of concrete structures – Part 1-1: General rules and rules for buildings (ČSN EN 1992-1-1). The control of the design of reinforcement was performed in software SCIA Engineer 17.01.
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Steel construction greenhouse
Neničková, Lucie ; Štrba, Michal (referee) ; Bajer, Miroslav (advisor)
Aim of the bachelor thesis is to create proposal and static assessment of supporting steel structure of the greenhouse according to the proposed disposition. Climatic load (snow and wind) is determined for location Brno. The thesis consists of technical report with assembling solution, static report of main supporting parts and chosen connections and drawing documentation. Computational model for evaluation of internal forces is realized in Dlubal RSTAB 8.06 software. Static report is created manually according to valid European standards.
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Computational Model of KWH Boiler
Koiš, Jiří ; Skála, Zdeněk (referee) ; Lisý, Martin (advisor)
The subject of this thesis is the computational model of existing KWH boiler. There is a short research in the introduction, which deals with combustion heat of considered boiler. The stoichiometric and balance calculations of gasification chamber ZKG are performed first. The Balance calculations are based on the boiler thermal loss calculations, the losses were determined experimentally. The entire calculation is processed in a computational program for purposses of debugging and manipulation with partial calculations. The computational model that is proposed in this thesis provide better boiler proces understandig. The real boiler measurement is performed for evaluation. The next point is the result analyses, that shows potential boiler efficiency improvements.
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Advanced Control Algorithms of Powertrain Units
Špičák, Milan ; Puškár, Michal (referee) ; Slimařík,, Dušan (referee) ; Kučera, Pavel (referee) ; Píštěk, Václav (advisor)
This thesis describes computational control of vehicle powertrains using common variable, engine torque. The thesis is divided into three main parts. The first one shows design of methods for torque estimation using known or measured variables on the vehicle. The second part contains design of powertrain control algorithm utilizing the engine torque as a common variable among individual modules. The third part describes experimental optimization of the longitudinal acceleration of a vehicle using torque control.
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Determination of Turbocharger Rotor Dynamic Properties
Blaha, Adam ; Zubík, Martin (referee) ; Novotný, Pavel (advisor)
This diploma thesis deals with dynamic behaviour of a turbocharger rotor. The subject is a stock turbocharger for commercial vehicles. The research will be mentioned in the first part of the thesis as well as methods of processing. The second, practical part is divided into two divisions. They are both experimental and computational. The aim is finding of rotordynamic behaviour by an experiment and its comparing with a computational model in ANSYS software. Modal and harmonic analysis of a free and fixed subject will be used by both experiment and evaluation. The subject will be fixed where bearings are located during harmonic analysis. All the experimental results will be processed with mathematical and physical methods like FFT analysis or Campbel diagram. There will be two main types of computational models to choose among. These models will be analyzed in detail. The goal of the thesis is to reach results from ANSYS as close as possible with the experimental testing. This includes finding correct material and physical properties, right choice of mesh and right boundary conditions. At the same time the CPU time compared to the model complexity and results accuracy will be considered in a comparison with data obtained by the experiment.
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Design and static analysis of the lookout tower
Řehořová, Alena ; Hokeš, Filip (referee) ; Vlk, Zbyněk (advisor)
The topic of the bachelor's thesis is the design and static analysis of the steel structure of a lookout tower with a total height of 25.32 meters. The floor plan of each floor is a regular hexagon with a decreasing diameter to the center of height. The main viewing platform is located at a height of 24 meters, other viewing platforms are located in quarters of the height. The aim of the work is to design various structural solutions and their comparison, with respect to the effects of loading on the structure and its parts. The static model and calculation of internal forces is performed in the student version of the SCIA Engineer 20.0 program.
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Computational Model of Shock Absorber
Svršek, David ; Blaťák, Ondřej (referee) ; Hejtmánek, Petr (advisor)
The diploma thesis titled, Computational model of shock absorber, is concerned with ways to simulate individual actuators of dampening with the goal of obtaining F-v characteristics dependent on the setup of the shock absorber. The work is divided into two halves, the first one being a review of literature and the second half being practical. The review part is focused on ways of shock absorber constructions and the physical principles involved with the present forces. The practical part of the work contains a computational model of a monotube shock absorber in the Matlab programming software.
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