National Repository of Grey Literature 65 records found  beginprevious21 - 30nextend  jump to record: Search took 0.01 seconds. 
Hybrid drives of city buses
Hodas, David ; Novotný, Pavel (referee) ; Píštěk, Václav (advisor)
Bachelor’s thesis deals with an integration of hybrid buses in a public transport. It evaluates their environmental impact and possibilities of an application in traffic. Types of hybrid drives, system components and their interaction could be found here. It is focused on current status and chances of future development. In the final part there are economical aspects connected with bus transport.
Regulation options of renewable energy sources
Pavlíček, Jiří ; Morávek, Jan (referee) ; Pěcha, Jiří (advisor)
This bachelor's thesis deals with the regulation of renewable energy sources. It focuses on ways of managing and possibilities of regulation renewable energy resources. Indicates the proportion of various types of renewable energy sources in electricity production and their representation in the electrical load profile. Thesis describes the various storage systems, which can be used to stabilize the renewable energy sources. Evaluate the applicability of these storage systems in the energy sector.
Binders for supercapacitors electrodes
Gottwald, Tomáš ; Dvořák, Petr (referee) ; Sedlaříková, Marie (advisor)
This work deals with the issues of useing binders for supercapacitor electrodes and optimizing the technological process for their production. The work focuses on optimizing the amount of binder used in order to acheive the most capacity. The methodology consists of creating an appropriate experimental electrode and subsequent measuring its associated capacity with AutoLab. This aproach leads to creating grafs which show the dependencies of capacity on the amount of binder used.
Supercapacitors for Energy Storage
Přidal, Tomáš ; Jašková, Jana (referee) ; Krhutová, Milena (advisor)
Tato bakalářská práce je zaměřena na problematiku superkapacitorů. První kapitola se zabývá principem funkčnosti superkapacitoru. Jsou představeny základní funkční principy, použité materiály, hlavní výhody a nevýhody superkapacitoru. Dále jsou představeny možnosti využití superkapacitoru v různých průmyslových odvětvích. Následující kapitola nastiňuje ostatní způsoby ukládání energie i s jejich výhodami a nevýhodami, která je doplněna o srovnávací tabulku s parametry. Poslední kapitola je zaměřena na teoretický návrh modulu superkapacitorů.
Wind power generation and energy accumulation possibilities
Krbal, Michal ; Mastný, Petr (referee) ; Drápela, Jiří (advisor)
The goal of this bachelor’s thesis is to inform about conditions of running and the character of running of the wind power plants and about the suitable storage systems for the possibilities of time invariableness of power supply. For these reasons is immediately in the first chapter of the thesis described state of using wind power plants in The Czech republic and other countries in Europe which produce electric power. Description of individual functional parts is important mainly from the point of electrician conversion of kinetic energy of wind to electric energy with help of the electric power generator with the highest efficiency and without need for maintenance. It is necessary to know those functional parts of the power wind to be able to design appropriate storage system. The output electric power is very variable at time, mainly output voltage, because wind energy is variable too. The characteristics of the wind power plants as output voltage, frequency and their switching graded at time have to in accordance with requirements of the electricity supply systems not to disturb the stability or even collapse of the electricity supply system which would lead to serious economic consequences. These predicaments can be prevented with precise meteorological forecast or by using the acceptable storage system with small acquisition and operating costs, requirements to safeness and long service life, low weight and high efficiency of conversion of energy. The storage systems are classified into centralized and decentralizing systems with requirements to dynamic running and running time. To fulfil these conditions it is essential to choose acceptable and accessible locations with year lasting qualities of wind, which are being checked in advance using measurement and mathematical calculations.
Design of power supply for ADAHRS
Andrysík, Lukáš ; Vrba, Kamil (referee) ; Číka, Petr (advisor)
This master’s thesis contains basic description od ADAHRS system, DO-160 standard and mainly focuses on power supply desing with supercapacitors backup. It initialy deals with power supply requirements and continues with block diagram and multiple 5 V supply solutions. For selected 5 V supply it describes more deeply its properities and options. As the main theme it deals with providing power supply backup using supercapacitors – selecting particular method and configuring supercapacitor charging/discharging controller. It also includes tolerance and stress analysis of the components used in design. Lastly it describes testing of the final product.
Renewal energy in HPV
Bittner, Ivo ; Vorel, Pavel (referee) ; Kaplan, Zdeněk (advisor)
This thesis deals with comprehensive study and design of recovery system of a road vehicle powered by human power. It contains an overview of different types of heat recovery devices, their characteristics, advantages, disadvantages and applicability in the construction of such a vehicle.
TECHNOLOGIES FOR PORTABLE STORAGE OF ELECTRICAL ENERGY
Helma, Radim ; Smutný, Milan (referee) ; Žouželková Bartošová, Marie (advisor)
Cílem této semestrální práce je vypracovat rešerši na téma různých metod uskladnění elektrické energie. V práci jsem zkombinoval mnoho datových zdrojů a pro každou technologii jsem vytvořil stručný popis historie, současných problémů a možností do budoucna. Má práce čtenáři poskytne přehled faktografických informací na téma akumulátorů, palivových článků, superkondenzátorů a průtokových baterií. Příslušné technologie jsou uspořádány jako strukturovaný, kategorizovaný seznam.
Renewal energy in HPV
Bittner, Ivo ; Kloss, Ondřej (referee) ; Kaplan, Zdeněk (advisor)
This thesis deals with comprehensive study and design of recovery system of a road vehicle powered by human power. It contains an overview of different types of heat recovery devices, their characteristics, advantages, disadvantages and applicability in the construction of such a vehicle.
DC to DC inverter for backup power supplies with super-capacitors
Pavlík, Arnošt ; Šteffan, Pavel (referee) ; Boušek, Jaroslav (advisor)
Master’s thesis deals with the design concept of DC/DC convertor usable for a backup source with supercapacitors. The paper describes the theoretical knowledge of supercapacitors technology, principle of basic DC/DC convertors and their use in electrical energy storage systems. The thesis contains a description of the designed backup power system and its properties, which has been measured.

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