|
|
Cogeneration plants on vegetable oil
Macoszek, Pavel ; Baxant, Petr (referee) ; Radil, Lukáš (advisor)
The thesis is focused on cogeneration units on vegetable oil. The first chapter contains basic information about the production, supply and consumption of electric energy in the Czech Republic and about renewable energy sources. The following chapter is devoted to possibilities of use oil kinds of phytomass in the Czech Republic, or products made from them. Next chapter is mentioned on legislation allowing the use of used cooking oils for energy purposes. It contains a summary of the laws and regulations and options regarding subsidies for electric and heat power. The main objective of these chapters is to explain the issue of the establishment and operation of cogeneration units on vegetable oil. The following chapters are devoted to the design and study of simultaneously operated cogeneration unit on the vegetable oil with a combustion engine and the calculation of economic operation running. The reason of study is to evaluation, which on based of the input values and calculation methods determine the economic efficiency of the project cogeneration unit on vegetable oil under mode purchase price and mode green bonus. Appreciation is also given to the overall legal review and responsibilities of cogeneration units on vegetable oil.
|
|
|
Positive and negative impact of biomass combustion
Jurek, Roman ; Hrnčířová, Michaela (referee) ; Lisý, Martin (advisor)
This work is a specialized research dealing with biomass burning. It outlines key issues as the actual combustion of biomass and an equally significant influence its production on the environment. The first half is devoted to the definition of biomass, its distribution and impact of biomass production for fuel on the environment. The second half is devoted to the process of combustion and emissions released.
|
|
|
Positive and negative impact of biomass combustion on environmental
Adámek, Tomáš ; Baláš, Marek (referee) ; Lisý, Martin (advisor)
This bachelor thesis is specialized research dedicated to the issues of combustion biomass. It presents fundamental problems of process of combustion biomass as well as significant influence of its production to environment. First part of thesis is dedicated to the definition of biomass, division and impact of biomass as fuel to environment. Second part deals with process of combustion and with related pollution.
|
|
|
Agrotechnical demands for establishing growth of the selected annual and perennial energy crops
BÍNA, Martin
The aim of this dissertation is to verify the influence of certain agrotechnical procedures during the growing of selected annual and perrenial plants for use as energy sources. The chosen annual plant was maize (Zea mays L.) and the observed perrenial plant was (Miscanthus x giganteus). The literary overview is aimed at agrotechnical requirements, range of uses and the economic aspects of growing the chosen energy crops. The productive potencial of the chosen plants was then assessed on the basis of the individual agrotechnical procedures. The purpose of growing the plants was the creation of phytomass to be used as a raw material in biogas stations. Field tests were carried out for each plant, and the chosen agrotechnical procedures were then judged on the basis of the tests.
|
|
|
Organical chemicals from biomass
DOLEŽAL, David
This bachelor thesis deals with the processes of biomass as a renewable resource for the production of chemicals that could compete chemicals obtainable from fossil sources. Processing of biomass can be divided into two main approaches namely a thermochemical and biotechnological processing of biomass processes. This processing involves many processes such as hydrolysis, crushing, fermentation, combustion or high temperatures and pressures, and many other thermochemical or biotechnological processes associated with the nature of the structure of the biomass. As the most important products of biomass processing can be considered biofuels represented in my work mainly by ethanol, but also methanol and other organic chemicals such as furfural, levulinic acid and hydroxymethylfurfural derived from the processing of C5 and C6 sugars located in the fundamental structure of biomass. These organic chemicals can also serve as a chemical platform and subsequent modifications of them can get products with the same or very similar properties of the products of the petrochemical industry.
|
|
|
Effective use of phytomass in the protected area of the National Park Podyjí
FORMANOVÁ, Petra
The objective of the thesis is to evaluate the possibility of the effective use of waste and phytomass specifically grown for energy purposes in the protected area of National Park Podyjí. The task was to characterize the source of phytomass in this environmentally sensitive area. The data were collected by studying documents, visits to enterprises and institutions, and personal consultations with business and other stakeholders. The result of this work is a brief assessment of the production potential and the factors influencing its development. Due to the nature of the territory, to suggest measures for efficient use of land for the production of energy phytomass with regard to the attitudes of farmers and the authority of nature and landscape.
|
|
| |
|
|
Energy use of phytomass in the South Bohemia Region
NEJEDLÁ, Alice
This bachelor thesis focuses on energetic use of phytomass in the Southern Bohemia. There was identified real and potential production of biomass in the Czech Republic and in the Southern Bohemia. According to the information acquired from literature, internet and questionnairy research there was identified volume of use of energetic sources and biomass deliberately cultivated in Southern Bohemia for energetic use. The results of this research show that Czech Republic meets the commitment to cover 6% of energetic consumption by renewable energy source ? it even reached 8%. Southern Bohemia produces 4,5% of all renewable energy sources of the Czech republic. The research shows that there is a lack of biomass in the Czech Republic, that is why it must be produced by growing energy crops (PEP) and fast growing woods (RRD). Energy crops produces in the Czech Republic are: Sorrel Feed, Miscanthus Chinese, Knotweed, Reed Canary Grass, Hemp, Sorghum. As fast growing woods there are willows and poplars recommended. The most of the renewable energy sources in Southern Bohemia is represented by biomass and its combustion. Its potential is huge, mostly the waste of wood processing ? sawdust and wooden chips, is the most used fuel. Energetic use of biomass has a good perspective in Southern Bohemia. There is still unused waste from logging and straw in agricultural production. There is still hidden potential in growing energy crops and fast growing woods. The development is defended especially by economic reasons and state financial support.
|
|
|
Energetical use of phytomass
BLAHO, Milan
The objective of the thesis is proposing types of crops suitable for the production of phytomass for power purposes in low favourite areas (LFA). The assignment was summarising the source data for a broader set of power crops obtained from multiple authors primarily from the Czech Republic, and assessing their suitability for growing in LFA in areas sorted by environment requirements (soil, pH, weather conditions, vegetation period, resistance to frost, resistance to pests and diseases,{\dots}) and by production capability and energy parameters (yield, height of plants, combustion heat, caloric value, humidity, ash content, {\dots}) Field tests with suitable power crops were established and economic models were generated based on the results of the cultivation to demonstrate the possibilities of utilisation in reality
|
|
|
Production capability and growing specialities of selected energy plants
DVOŘÁK, Adam
Agriculture started the new way, instead of the food crops is icreased growing of energy crops. Thesis {\clqq}Production potencial and specificity of energy plant growing`` deals with evaluation of suitability of selected energy crops in field trials and theire needs of soil, clima and agrotechnology. The growth ability, health were evaluated during vegetation period and production potencial in harvest time in choosed group of energy crops. The thesis content also the seed quality, field germination and initial growth evaluated in conditions of anthropogenic soils.
|
guest ::
