National Repository of Grey Literature 89 records found  beginprevious63 - 72nextend  jump to record: Search took 0.01 seconds. 
Proposal of measures in the high voltage network for the implementation of renewable sources and electromobility according to scenarios NAP SG
Navrátil, Stanislav ; Blažek, Viktor (referee) ; Ptáček, Michal (advisor)
This thesis is focused on demonstrating the impact of the implementation of decentralized distributed energy sources (mainly RES) and electromobility technologies to electrical parameters in Czech medium voltage distribution network. Thesis is divided into two main chapters. First one is a brief theoretical summary of this problematic and the second one is a practical software simulation on a real medium voltage network. Proposed implementation scenarios are based on EU and national strategic plans for time period from 2020 to 2040.
Ekonomické aspekty provozu vozidel na alternativní pohony
Vajdík, Radek
The bachelor thesis follows up an analysis of particular alternative propulsion systems together with their economic evaluation from the point of everyday usage. Included there are the basic propulsion systems, which are simultaneously the most used types of systems. The thesis focuses primarily on the economic point of view of purchase and usage of cars with such propulsion systems. Secondarily, the thesis focuses on the com-parison of individual propulsion systems, and on the confrontation with the traditional ones. The conclusion of the thesis should provide an answer to a question: is it worth to invest to a vehicle with an alternative propulsion system?
Zhodnocení investice společnosti DPMO, a.s. do elektrického autobusu
Fitzová, Lenka
The topic of this thesis is evaluation of the total cost of city of Olomouc for the operation of an electric bus in comparison with a diesel bus. The evaluation was based on operating data monitored by the company. The results show that investment in an electric bus pays off only in the case of a subsidy. In conclusion, there is a recommendation for the Dopravní podnik města Olomouce, a.s., which can be used in public transport of other cities.
Vplyv faktorov vonkajšieho prostredia na vývoj a predaj elektromobilov vo vybraných krajinách EÚ
Uher, Lukáš
Uher, L. Impact of external factors on sales and development of electric vehicles in selected EU countries. Bachelor Thesis. Brno: Mendel university in Brno, 2018. The main issue of this Bachelor´s thesis is a determination of external factors in-fluencing electric vehicles sales and evaluation the main reasons in differences between sales figures of this type of vehicles among EU countries. The theoretical part covers evaluation of the influence of transport on environment with regula-tions and targets of EU in a transportation sector. Furthermore, this part contains information about sales figures of electric vehicles. The practical part focuses con-sequently on examination of the connections between the listed factors and elec-tric vehicles sales by PEST analysis. The conclusion brings the evaluation of the acquired results and potential of future sales increase of electric vehicles among the listed countries.
Battery pack for an electric car
List, Jaroslav ; Kalivoda, Milan (referee) ; Polzer, Aleš (advisor)
Thesis deals with the design of a battery box with lithium-ion technology, for the largest possible driving range of the BUT SuperEL II electric car. Based on the analysis of the electric vehicle available space and the parameters of the electronic system, the maximum size of the entire set of 84s130p batteries was designed. 18650 cells with NMC technology were selected due to the very high gravimetric and volumetric density, which reaches 274 Wh/kg and 564 kWh/m3. The total nominal capacity of the designed battery boxes in the electric car is 138 kWh. The total gravimetric energy density of the designed box is 215.6 Wh/kg. It allows the electric car to reach the theoretical range with a consumption of 14 kWh/100 km of almost 1000 km. The individual battery modules of the battery box are controlled for optimal operating conditions by means of a BMS. The whole set is divided into 5 battery boxes. These boxes are manufactured using the technology of bent welded sheets from aluminum alloy EN AW 1050A and steel 1.4301. FEM analyzes were performed to verify the mechanical strength of the designed structure. The work also deals with the design of battery modules and their connection.
Energy efficiency of hydrogen utilization in transport
Mikulenka, Karel ; Kučera, Pavel (referee) ; Vopařil, Jan (advisor)
This bachelor thesis analyses current possibilities of hydrogen usage in transport. Hydrogen is by scientific community viewed as a possible answer to ever growing emissions from transport and their negative affect on the environment. The work introduces the most significant advantages of hydrogen usage as a fuel in comparison to its counterpart combustion engine and battery vehicles. Two means of obtaining energy from hydrogen in a vehicle itself shall be described which are hydrogen combustion and fuel cells. Further shall be made analysis of current possibilities for potential end customer pertaining vehicle and fuel availability. In the end is given a general description of hydrogen transport implementation in Czech Republic and its energetic cost and efficiency within an overall hydrogen economy.
MEB modular platform for electric cars
Tkach, Svitlana ; Kaplan, Zdeněk (referee) ; Píštěk, Václav (advisor)
This bachelor’s thesis focuses on the possibilities of the newly developed modular electric drive matrix MEB of the Volkswagen Group. The aim was to create a research study about technical parameters of the platform and the possibilities of its use for various categories of vehicles not only within the Volkswagen Group, but also the offer to competing manufacturers. In conclusion of the bachelor’s thesis is formulated the impact of technologies, offered by the modular electric drive matrix, on the development and production of electric vehicles and the related possibility of a reversal in the expansion of electric drive.
Infrastructure for electromobility
Smutková, Karolína ; Böhm, Michael (referee) ; Štětina, Josef (advisor)
This thesis deals with the issue of charging electric vehicles, including a number of sub-questions. It provides an overview of current charging stations, connectors, communication between vehicle and charger during charging and of the resulting price for charging. It also takes into account the need for large amounts of energy mostly from renewable sources, coupled with battery storage facilities. The last point is a comparison of current electric vehicles mainly by battery capacity, price and range. The whole thesis is primarily related to the territory of the Czech Republic.
Power Systems Ranges of Main Parameters
Řehořek, Tomáš ; Gála, Michal (referee) ; Paar, Martin (advisor)
The thesis deals with description of the power system, parameters of it’s components and the range of outputs and consumption. In the first part the structure of the power system is described as well as the fundamental division of electric grids. In this part the work also touches on the ways of supllying the elctric traction. Furthermore the amount of production and consumption is mentioned. In the second part this work focuses on description of selected components of the power system and their real parameters. Furthermore the work also touches on the matter of electromobility and battery energy storage systems. In the last part of this work a few simple methods of consumption estimation are presented. This work also includes two infografics, that describe the power system.
Marketing Communication Support of Electric Vehicle Sales in the Czech Republic
Stejskalová, Kristina ; Chalupský, Vladimír (referee) ; Chlebovský, Vít (advisor)
In this thesis is written a brief history of electric cars up to the present. Hybrid vehicles are described and particular attention is given to the description of electric vehicles. A method for accumulating electrical energy by electrochemical accumulators is provided. Finally, there are operation costs of electric cars.

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