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Optimization Rankineůva Clausius-steam cycle
Čepl, Ondřej ; Klimeš, Lubomír (referee) ; Štětina, Josef (advisor)
This diploma thesis deals with an optimization of Rankine-Clausius steam cycle. The theoretical information about the Optimization and the Rankine-Clausius cycle are described at the beginning of the thesis. These theoretical findings are later used to create simulation models in MATLAB. Individual simulation models are variants of the ideal R-C cycle. Simulation models include the basic cycle model, the supercritical cycle and the cycle with reheat. For these models the optimal configurations are found and their t-s diagrams are plotted.
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Impacts of rehabilitation of sewer network on sewer hydraulics
Petrová, Diana ; Prax, Petr (referee) ; Raclavský, Jaroslav (advisor)
This diploma thesis focuses on the assessment of the technical condition of selected parts (2 branches) of the sewer network in Znojmo. First, an assessment and classification of the occurring defects was carried out based on the supplied camera recordings according to the coding system of the ČSN EN 13 508-2+A1 standard. Then, each section was classified according to its faultiness and the resulting technical condition into individual categories according to the methodology of TNV 75 6905 (draft) and remediation was proposed. The remediation in the first part A concerned sections falling into categories 2 and 3, where remediation was proposed by lining that hardens in place using a UV emitter. For the second part of the network (B), lining cured by UV radiation was also proposed for sections falling into category 2, and for sections in category 4, a complete replacement of the existing pipes with new ones was proposed due to their destruction and static insufficiency. An economic evaluation was prepared for such a remedition proposal. In the next part, an assessment was made to determine whether the proposed remediton measures do not have an adverse impact on the overall hydraulics of the network. This assessment was carried out in the SWMM program, from which it was found that the remediation does not have such a significant and drastic impact on the hydraulics of the network and its application (lining and replacement of pipes) should have almost no effect. This work includes individual appendices - Evaluation of the camera survey of selected sections of the sewer network according to ČSN EN 13 508-2+A1, Evaluation of the technical condition of selected sections according to TNV 75 6905, Situation evaluation of the technical condition of the sewer network - part A, Situation evaluation of the technical condition of the sewer network part B, Calculation of flow rates depending on the filling height for the original state before and after relief and CD with a camera survey of selected sections of the network.
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Optimization Rankineůva Clausius-steam cycle
Čepl, Ondřej ; Klimeš, Lubomír (referee) ; Štětina, Josef (advisor)
This diploma thesis deals with an optimization of Rankine-Clausius steam cycle. The theoretical information about the Optimization and the Rankine-Clausius cycle are described at the beginning of the thesis. These theoretical findings are later used to create simulation models in MATLAB. Individual simulation models are variants of the ideal R-C cycle. Simulation models include the basic cycle model, the supercritical cycle and the cycle with reheat. For these models the optimal configurations are found and their t-s diagrams are plotted.
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Prediction of ash production as a side effect of burning coal in the coal power plant Ledvice
Zikmundová, Alena ; Kuncová, Martina (advisor) ; Houšková Beránková, Martina (referee)
The topic of this thesis is the prediction of production of ash as a side product in the coal power plant Ledvice. The goal of the first two chapters was to present the development of consumption of electricity and the resources of electric energy in Europe, show the trends in energy industry at the beginning of the 21st century, introduce the energetic company ČEZ, summarize the issue of side products in power plants and present the new block of the coal power plant Ledvice. In the theory section, the methods of linear programming, simulation models, linear regression model and artificial neural networks were presented. These methods were used in the application section to create an optimization model for the processing of the side products of burning coal, to create a simulation of the production of side products and to use the results to optimize the processing of the side products of burning coal and to create a model to predict the production of bottom ash to coal burned ratio based on the characteristics of the coal burned moisture, ash and lower heating value using artificial neural networks.
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Monte Carlo method and its usa in finance
Košina, Martin ; Hejdová, Martina (advisor) ; Stecenková, Marina (referee)
The aim of the thesis is the description of the Monte Carlo simulation method, which in recent decades are very popular in many scientific fields. Nowadays various statistical surveys, analysis and information processing are similar statistical methods very significant. The theoretical part of the paper firstly describes the general simulation models because of their solutions with similar methods such as Monte Carlo, are often used. The following are typical examples of the historical method, its description and usage. The practical part of the thesis deals with the management of risk in finance and the possible application of the Monte Carlo in determining the level of risk Value at Risk. This rate is modern and globally used tool in the management of market risk. The practical part is about the calculation of the extent of the price index PX , which is the official index of the Prague Stock Exchange.
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The use of simulation models for company processes improvement
Votruba, Pavel ; Dlouhý, Martin (advisor) ; Princ, Peter (referee)
Simulation models are used to analyse company processes. The purpose is to create a model in simulation software that will represent the behaviour of the company. Options to improve the current situation are investigated by observation of the studied system and subsequent experimenting with the model. This work deals with the situation in the company, which focuses on lease and service of working platforms. New headquarters is being built to provide better services and changes in offer of leased working platforms are being considered. Model of the company is created in software SIMUL8. Next step is to perform simulation experiment and summarize the results. Input values are adjusted according to these results, which leads to a more favorable solution. The aim of this work is to optimize the working capacity and improve the structure of offer of leased working platforms.
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Simulation models of pension insurance due to demographic development in the CR
Pudil, Lubomír ; Kuncová, Martina (advisor) ; Vopátek, Jiří (referee)
The issue of an aging population, pension systems and pension themselves, are currently very actual, interesting and socially topics discussed. In my diploma thesis on simulation models of pension insurance due to demographic development in the CR I used simulation experiments, including those based primarily on the Monte Carlo method, tackling issues and negatives surrounding pension insurance with state contribution, which, as one of the financial products market, is the second pillar of pension system in the Czech Republic. Pension scheme of pension insurekce with state contibution gives participants the advantages and benefits in the form of state subsidy, the possibility of reducing the income tax base on the part of the contributions paid, proceeds from fund management and the possibility of contributions from the employer. On the other hand, play an important role, weaknesses and shortcomings of this system. Again, the most important may be considered inseparateness fund's assets from an estate participants, inappropriately designed state contribution, the high average age of participants and relatively low rate of return on fund management. Negatives mentioned above were reflected in the simulation experiments, when the linear state contribution was designed and was considered for the new system of pension saving in combination with a linear state contribution, which appears to be a more appropriate and beneficial for both participants on the one hand, and the state (impact on public spendings) on the other.
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