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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Začlenění lokálního zdroje – kogenerační jednotky do průmyslové sítě / Integration of a co-generation unit to industrial power system

Kučera, Michal January 2013 (has links)
This master's thesis deals with the integration of a mine gas burning cogeneration unit into industrial power system. The aim of the thesis is to design and evaluate different possibilities of integration the cogeneration unit into industrial power system. The first, theoretical part of the thesis discuss about cogeneration (combined heat and power). The technologies used for cogeneration are summed up as well as the possibilities of usage. The next part deals with the mine gas as the fuel for the cogeneration units. The lasts chapters of the theoretical part talks about terms for installation power source into industrial power system and about the possibilities of overflow of the electricity into distribution power system. The practical part deals with the installation of the 600 kW cogeneration unit into particular industrial power system. Four possibilities of operation mode of the cogeneration unit are design. At the end of the thesis the brief economical evaluation is accomplished.
2

Řídící systém kogenerační jednotky se vzdáleným dohledem / Cogeneration unit control system with remote monitoring

Betlach, Radomír January 2014 (has links)
The subject of diploma thesis is to summarize problematic about control of cogeneration unit. There are explained some unexpected situations, which can obtain during operation of unit and necessary process for their safety resolving. Next goal is to design the conception of controlling system for currently used technology. Project describes whole conception of control system and its parts. Physical realization and programming firmware is also described. Last goal of diploma project is to launch operation of innovated cogeneration unit and let it undergo the tests.
3

Přestavba učiliště na pasivní bytový dům / Conversion of school building to energy passive residential house

Mázl, Michal January 2015 (has links)
The aim of diploma thesis is the project of reconstruction of schools to passive apartment building. This thesis follows a pilot project reconstruction of the former school in Dubňany to 27 apartments in the passive standard. This is a real project that will be implemented in the following years.
4

Využití kaplných biopaliv pro energetické zásobování areálu Technická 2 / Utilizing of liquide biofuels for energy supply in the complex Technicka 2

Kopecký, Jakub January 2010 (has links)
Theme of this thesis is utilizing of liquide biofuels for energy supply in the complex Technicka 2. This work is divided into three parts. The first part dealt with the issue of liquid biofuels, both globally and within the Czech Republic. In the next part are noted technologies for heating, power and cooling of of liquid biofuels. In the third part is noted evaluation of using cogeneration unit from Seva, a.g. for komplex Technicka 2 in different types of traffic.
5

Projekt ORC cyklu / Project ORC -cycle

Černý, Jakub January 2014 (has links)
The aim of this thesis is the project for biomass cogeneration units using ORC cycle and subsequent use of thermal energy for drying wood biomass for a briquetting line. The introducing sections describe the principle of cogeneration, organic Rankine cycle (primarily the indication of potential applications and their use in practice) and the selection of the proper working fluid. The following sections provide a technical description of the selected plants for cogeneration unit, total circulation scheme and calculation of the evaporator working fluid. The last section is devoted to the economic evaluation of three variants according to the investor's task to design a better option for implementation.
6

Autonomní energetický systém / Autonomous power system

Královský, Jaroslav January 2020 (has links)
This diploma thesis deals with available technologies when designing autonomous house. Theoretical part of this thesis shows and presents options for gaining energy from renewable resources and options for energy storage. The practical part of the thesis is focused on designing partly autonomous system for model house using renewable resources. In the thesis are three options of gainig energy for the house, from which is chosen the best option.
7

Návrh transformační stanice pro vyvedení výkonu z kogenerační jednotky / Design the Transformer Station for the Outgoing Power of Cogeneration Unit

Pastorek, Jaroslav January 2012 (has links)
The thesis deals with the design of a transformer station for the outgoing power of cogeneration unit with an electric capacity of up to 1 MW. The thesis describes the design procedure of individual devices such as a transformer with a nominal ratio 22/0,4 kV, high voltage switchgears and low voltage switchgears. With the proper selection of the transformer, along with the technical parameters, the economic benefits that come from its purchasing and operating costs with the transformer operation are also considered. Based on this, the economic comparison of selected types of oil transformers during 20 years is also developed. Another part of the thesis deals with HV and LV switchgears, which are dimensioned according to shortcircuit conditions in the transformer station. In conclusion this work deals with the grounding of a transformer station and design protection in accordance PPDS.
8

Řízení kogenerační jednotky / Control of c.h.p. unit

Ulver, Martin January 2012 (has links)
Master’s thesis deals with cogeneration unit and its control. Cogeneration unit used to energy production and heat production. Power of cogeneration unit is controlled by current consumption of the building, so that the absorbed power from the public network to a minimum. The control unit is composed of two individual part, which is communicated together along single phase of the ~230V. One part measure absorbed power of the network and the second control a cogeneration unit.
9

Posouzení možností snížení energetické náročnosti výrobního areálu / Assessment of options to reduce energy consumption in industrial areal

Křesťan, Jan January 2016 (has links)
The aim of this diploma thesis is assessment of options to reduce energy consumption in industrial areal belonging to Fritzmeier company. This thesis is divided into three parts. In the first part there is analysis of electrical energy and natural gas consumption in considered industrial area based on data from energy audit. The second part consists of short theoretical elaboration of cogeneration and cogeneration technologies, design of five variants of use of cogeneration units with combustion engine running on natural gas and evaluation of proposed variants. Third part of this thesis is about modernization of lighting system in small section of assembly hall. In this part parameters of new LED lighting system for selection are set, based on theoretical elaboration of LED problematics and five variants offered by specialized companies are evaluated.
10

Optimalizace vytápění bytového domu / Optimization of Flat House Heating

Fodor, Ján January 2017 (has links)
This diploma thesis deals with the supply of heat in a particular block of flats in Brno. It deals with supply for heating and for hot water heating. The introduction gives information about the considerated building and also generally, but especially with regard to the current situation with consumption and heat supply. Subsequently, the thesis describes the individual possibilities of obtaining heat. There are mentioned classical heat sources as gas boilers, but also less commonly used as co-generating units or solar collectors. Furthermore, the work is calculating from the technical and economic point of view for heating options chosen by the investor. Finally, the work compares the options from viewpoint of benefits, budgets and returns of possible investments.

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