National Repository of Grey Literature 36 records found  1 - 10nextend  jump to record: Search took 0.00 seconds. 
Refrigeration system with passive evaporator
Carbol, Marek ; Mauder, Tomáš (referee) ; Hejčík, Jiří (advisor)
This thesis is concerned with the design of a heat pump that does not use a ventilator during operation. In the introductory chapter, the functioning and the basic components of this device and other types of heat pumps are described. Properties of some commonly used refrigerants and oils as well as their classifications are stated. Due to the absence of a ventilator, a special heat exchanger was designed to achieve the required heat power. The choice of components in this refrigeration system takes into consideration the efficiency and functionality of the device.
Rankine cycle with water steam for power generation
Uhříček, Michal ; Mauder, Tomáš (referee) ; Klimeš, Lubomír (advisor)
The Rankine cycle with water steam is the basic thermal cycle used in power generation for producing electricity. Through this cycle thermal energy (of any source) is transformed into shaft work, which then generates electricity. Therefore, the aim is to achieve the highest efficiency of this transformation with losing as little of the usable energy as possible. This bachelor thesis is focused on describing the general thermodynamics cycle, the basic Rankine cycle and Rankine cycles with modifications, which help to increase the thermal efficiency. The practical part of this thesis is dedicated to programming the script in the MATLAB programming environment for easy thermodynamic analysis of the basic ideal Rankine cycle.
Active cooling of the car headlight
Žlebek, Jan ; Mauder, Tomáš (referee) ; Štětina, Josef (advisor)
The main goal of this bachelor thesis is to design the cooling of the headlamp by using a Peltier module. The first chapter is to acquaint the reader with the possibility of heat transfer. Further work is focused on various types of heatsinks and printed circuit board. The third part describes the principle of functions of Peltier's module. The last part of the work contains the design of the heatsink assembly and the design solution of fixing the cooling assembly in the housing.
Electromobility, infrastructure solutions for homes and companies
Ďuračka, Samuel ; Mauder, Tomáš (referee) ; Štětina, Josef (advisor)
Goal of this bachelor’s thesis is an elaboration of an overview of the current state of knowledge in the area of various ways of charging electric vehicles, home charging stations, and battery storages issues. First part of the thesis is focused on brief history of electromobility, its decline, and consecutive recent growth. Second part of the thesis deals with charging in households realized by wallbox, and its benefits. Another topic is electric vehicle batteries and their utilization outside the electric vehicle, both during their cycle life, and after it stops being useable in electric car. In the end of the thesis, there is a recommendation of suitable charging station for Institute of Automotive Engineering FME.
Optimum control of heating and cooling of a multi-source housing unit with heuristic optimization
Sekula, Jakub ; Klimeš, Lubomír (referee) ; Mauder, Tomáš (advisor)
Aim of this work is to optimize the process of heating and cooling of living space with application of many heat sources in order to dicrease financial costs by heuristic optimization. Heat losses, which are needed to be covered, are counted using 1D heat transfer through plane wall model. Values of external tempreture, speed of wind and another external effects came from weather station in Brno.
Mathematical optimization of a solar photovoltaic system for a single-family detached home
Bah, Sheikh Omar ; Mauder, Tomáš (referee) ; Charvát, Pavel (advisor)
This paper presents a mathematical sizing algorithms of a grid-connected photovoltaic-battery system for a residential house. The objective is to minimize the total storage capacity with cost of electricity. The proposed methodology is based on a Linear and Non-linear programming. We have presents results from a existing PV panel FS-4115-3 for the given climatic conditions and the electricity use profile. Measurements for whole household electricity consumption have been obtained over a period of two months. They were all obtained at one hour interval. The algorithm jointly optimizes the sizes of the photovoltaic and the battery systems by adjusting the battery charge and discharge cycles according to the availability of solar resource and a time-of-use tariff structure for electricity. The results show that jointly optimizing the sizing of battery and photovoltaic systems can significantly reduce electricity imports and the cost of electricity for the household.
Time minimization for vehicles passing a given trajectory
Suja, Jerguš ; Mauder, Tomáš (referee) ; Porteš, Petr (advisor)
The diploma thesis deals with vehicle movement dynamics and defining a theoretical model for software simulation of vehicle passing a given trajectory, while main aim is time minimization driving mode. Simulation (algorithm for computing speed profile) is then applicated for passing experimental vehicle along Masaryk circuit in Brno. At the end, we optimize chosen vehicle parameters with derivate-free algorithms Multilevel Coordinate Search and Particle Swarm.
Combination of numerical mathematics and neural network for the model of breakout prediction
Srba, Jan ; Štětina, Josef (referee) ; Mauder, Tomáš (advisor)
This thesis deals with creation of breakout prediction model implemented via artificial neural network in MATLAB, hence it contains theoretical description of artificial neural networks and also presents how the networks were used for the breakout prediction problem. In addition, models of heat conduction through the mold wall were created and used for generating neccesary data for proper training of artificial neural network. The thesis contains proper description of used numerical methods for solving the heat conduction problems. In the thesis are presented partial results and also results of testing created artificial neural network with usage of real data.
Analyze and economic time series forecasting by using selected statistical methods
Skopal, Martin ; Charvát, Pavel (referee) ; Mauder, Tomáš (advisor)
V této diplomové práci se zaměřujeme na vytvoření plně automatizovaného algoritmu pro předpovědi finančních řad, který se snaží využít kombinační proceduru na dvou úrovních mezi dvěma rodinami předpovědních modelů, Box-Jenkins a Exponenciální stavové modely, které jsou schopny modelovat jak homoskedastické tak heteroskedastické časové řady. Pro tento účel jsme navrhli selekční proceduru v prostředí MATLAB pro modely ARIMA. Výsledný kombinovaný model je pak aplikován několik finančních časových řad a jeho výkonost je diskutována.
Application of the artificial neural network to calculate the thermodynamic properties
Groman, Martin ; Škorpík, Jiří (referee) ; Mauder, Tomáš (advisor)
This master thesis is dealing with application of an artificial neural network for calculating specific volume of steam. There is described type and construction of the needed neural network. The main outcome of this work is an executable programme, which calculates specific volume of steam for given pressure and temperature, using neural nets.

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