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The utillization of maize for energetic purposes
WOLLNER, Antonín
The goal of my thesis is to evaluate the importance of maize in biogas plants. The questionnaire was made to determine the parameters of hybrid corn, its harvest, subsequent silage, inclusion in the daily batch of biogas plants, and various technical and economic parameters. Twenty five biogas plants were addressed to participate in the survey. Despite the promise of anonymity, the data were obtained from only six biogas plants. Biogas plants are located in different regions of the Czech Republic, at different altitudes. The sixth and the last biogas plant is located in Austria.
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The Investment Project Analysis of the Biogas Power Station Construction
Hruška, Jan ; Smrčka, Luboš (advisor) ; Šašek, Josef (referee)
The aim of the thesis is to perform the anylysis of the investment project of the biogas power station construction which is considered by the company Agrospol Starý Pelhřimov spol. s r. o. The work has been divided into two parts. The first part has been focused on the possibilities of production of electric energy from renewable resources in the Czech Republic, their possible capacity potential, advantages, disadvantages, and current utilization in our country. Furthermore, the theory regarding investments and their evaluation has been stated there. In the second part the investment project itself has been introduced and subsequently evaluated by means of economic indexes.
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Look into possibility and propose eventually adjustments of combustion engine for hybrid propulsion Biogas and Woodgas
VONDRUŠKA, Michal
Bachelor´s work on the theme ?Look into possibility and propose eventually adjustments of combustion engine for hybrid propulsion Biogas and Woodgas? is contributed to three parts. First part is concerned by methods principals and chemicals process of genesis Biogas and Woodgas and also their features and composition. The second part of work is concerned by selection of suitable combustion engine for hybrid propulsion and necessary adjustments of engine for purpose of guarantee of function. Component of work are also adjustments of Biogas and Woodgas that they are necessary for satisfy ecological criterion for combustion engines and simply economical calculation for purpose state of economical aspect using of combustion engine for hybrid propulsion. The Result of work is estimation of options of using combustion engine for hybrid propulsion of Biogas and Woodgas.
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The comparison of selected plant cultures as different energy resources
PAVELOVÁ, Lenka
This bachelor thesis was made by form of literature retrieval, eventually added of any tables and graphic design of acquired data and own commentary (discussion) to the literature details. The aim of the work will assess the suitability of selected crops for cultivation in energy use with respekt to growing thein technology and assess the suitability of biomass for different wals of processing and energy recovery. A brief outline of the economic, ecological and economic importace of the topic. In the second chapter of literature review are provided information about renewable energy sources, what the renewable energy resources are, their significance and use. The chapter also discusses the importance and use of biomass as energy source, characteristic of various types of biomass and finally is mentioned the future of biomass. In the third chapter ?Selection and cultivation of plants for energy recovery? summarizes the information about selected woody and non-woody crops characteristic for energy use. It is these crops - grains, maize, fast growing woody plants, monocultures of grass, clover mixture, monoculture legumes, herbs, permanent grassland: the productive and out of productive importance. For individual crops are processed: general characteristics of plants, botanical classification, requirements for habitat, agricultural engineering, harvesting and post harvest treatment. Below are listed possibilities of production and outlined the use of crops for energy purposes. The fourth chapter deals with the ways of using biomass for energy purposes. By using wood, straw and energy crops for direct combustion of biomass to produce biogas and other forms of exploitation. Finally in the fifth chapter is a summary of key findings and recommendations resulting from studying issue, extended tables and graphical processing.
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The design of the production of biogas from fresh grass.
ŽIVNÝ, Jakub
Work is concered with the biogas production from the fresh grass mass, which come up when the grass is being cut on regular basis in the parks and side parts of communities and cities. There is a detailed description of the biogas production defined in the beginning of the Theses in the literature overview. Next, we define the material properties suitable for the biogas production, concerning on the grass mass. In practice, there is a prototype example showing how the biogas station could manipulate the fresh grass mess in real, linked to the harvest line.
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Assessment of energy crop cultivation in terms of erosion
POLÁKOVÁ, Monika
The aim of thesis is to assess and evaluate how energy crops affect erosion phenomena, then identify a suitable alternative crop that has anti-erosion ability. Location is evaluated in detail Trebon, as cultivation areas suitable for Phytoenergetics and biogas. Furthermore, I studied agricultural biogas plant that uses biomass as input for biogas production. To evaluate and calculate erosion parameters for a given locality the method of universal soil loss equation by Wishmeier and Smith, and the value showed crops causing erosion. The calculated values are related to locations all over the South Region. Thanks to the universal equation it is possible to find alternative crops, which cause erosion and both are suitable for biogas production.
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