|
|
Negative impact of renewable energy sources
Kleinová, Martina ; Lachman, Jakub (referee) ; Sitek, Tomáš (advisor)
The main focus of this work was to delve deeper into the issue of renewable energy. Firstly, we have looked at the different types in general and their characteristics, but in particular we have focused on the negative impacts they bring. Since renewable energy sources are our future, it is necessary to become familiar with their potential, possible shortcomings, the degree of severity of these problems and possible solutions. In the last part of the thesis, we looked at the use of renewables in the Czech Republic and evaluated the current policy and energy market.
|
|
|
Off-grid houses
Sedlák, Šimon ; Lachman, Jakub (referee) ; Baláš, Marek (advisor)
This bachelor thesis deals with energy efficient homes and the use of technologies leading to reduced reliance on utilities. The practical part describes the renovation of a single-family house into a hybrid house that uses available technologies to reduce dependence on utilities.
|
|
|
Possibilities of using biomass for home heating
Jurák, Matúš ; Linda, Jakub (referee) ; Lachman, Jakub (advisor)
This bachelor thesis deals with pellets and agropellets and their combustion, where main attention is given to emissions and their efficiency. Thesis consists of two parts. First part is theoretical, which consists of shown types of biomass, their properties and emissions created during combustion. The second part is experimental and its task is to compare efficiency and emissions created during combustion
|
|
|
Dry flue gas loss of fireplace stove reduction
Vodvárka, Petr ; Lachman, Jakub (referee) ; Baláš, Marek (advisor)
This bachelor thesis deals with the reduction of chimney heat loss of a fireplace stove with waste heat recovery. The results are the design of a functional heat exchanger and the calculation of the heat output. The heat exchanger must be designed for specific fireplace stove existing in a real living room and with realistic parameters. Technical documentation of the fireplace stove and a drawing of the heat exchanger are included in this thesis. Calculations of the reduction of chimney heat loss using the heat exchanger on a chimney are included in the conclusions. The advantages and disadvantages provided by using the heat exchanger are discussed.
|
|
|
Use of agromaterials for heating houses
Kudová, Anna ; Lachman, Jakub (referee) ; Baláš, Marek (advisor)
This bachelor thesis focuses on the biomass usage for energy generation in particular on comparison to wooden between hay pellets. First part is dedicated to fuel attributes, solid fuel boilers and pertaining legislation. Second part deals with an experiment which compares burning of both types of pellets in an automatic hot water boiler. The proximate analysis of fuels is conducted as well.
|
|
|
Refuse Derived Fuel
Exnerová, Anežka ; Kalivodová, Markéta (referee) ; Lachman, Jakub (advisor)
This bachelor’s thesis deals with the Waste-to-Energy topic focusing on refuse derived fuels. The aim of the first part is to describe what refuse derived fuels are, what are their properties and composition. From this point of view, we determine a comparison with municipal solid waste. Second part is about production process. Possible parameters of refuse derived fuels and the technological process of mechanical-biological treatment are presented here. Following part is focused on fuel combustion. This chapter lists combustion plants and emissions from the incineration of waste and refuse derived fuel.
|
|
| |
|
|
Hydrothermal Conversion of Biomass
Vařejka, Tomáš ; Elbl, Patrik (referee) ; Lachman, Jakub (advisor)
The main aim of this bachelor thesis is to search for hydrothermal technologies for biomass conversion to improved energy carriers. First part includes contains introduction to biomass conversion methods and its suitability for different types of feedstock. The following part is dedicated mainly to hydrothermal conversion processes, their history, development over time, used technology, process and product characteristics and comparison with conventional thermochemical methods. Finally, the current state of technology is evaluated, possible future developments are outlined and current problems which are preventing wider application of this technology are descried.
|
|
|
Fast pyrolysis reactors
Fencl, Jonáš ; Lachman, Jakub (referee) ; Elbl, Patrik (advisor)
The aim of the bachelor thesis is a description of a fast pyrolysis process, its products and technologies based on the principle of fast pyrolysis using biomass as a fuel. In the first part of the thesis biomass and its energetical usage is described. The second part focuses on a charachteristics and history of pyrolysis. The third part describes fast pyrolysis process, convertion to bio-oil and important process parameters to obtain maximum liquid yield. Furthermore, single components obtained from the fast pyrolysis process and their usage is described. The fourth part describes types of fast pyrolysis reactors, their advantages and disadvantages. At last, the largest pyrolysis units operating in practice are described.
|
|
|
Monitoring the effect of sample treatment in determining selected properties of biofuel
Štenclová, Kristýna ; Lachman, Jakub (referee) ; Lisá, Hana (advisor)
Diploma thesis is focused on the treatment of biofuel prior to combustion and effect of this treatment on the biofuel characteristics. The first part is a review of literature encompassing characteristics of fuel, preparation of samples, methods of analysis of individual characteristics and a presentation of various types of mills. The second part of thesis is experimental. It is an analysis of sample characteristics under various mill settings with regard to the temperature in the mill during grinding.
|
guest ::
RSS feed.