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Možnosti využití fermentačního zbytku z bioplynových stanic
Kazdová, Jana
Diplomová práce "Možnosti využití fermentačního zbytku z bioplynových stanic" se zabývá možnostmi zpracování a využívání fermentačního zbytku z bioplynových stanic se zaměřením na možnost jeho spalování. Úvodní část je zaměřena na proces anaerobní fermentace a seznámení s historií a současným stavem anaerobní fermentace a bioplynových stanic v České republice. Další částí práce je popis technologie bioplynových stanic a samotných možností zpracování a využívání fermentačního zbytku. V praktické části jsou popsány činnosti, které byly v rámci diplomové práce prováděny. Výsledkem práce je následně soubor dat, grafů, výpočtů a dalších informací, na základě kterých je v závěru zhodnocen proces spalování fermentačního zbytku.
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Burning pellets from non-wood biomass in boilers II
Linda, Matúš ; Baláš, Marek (referee) ; Zejda, Vojtěch (advisor)
Bachelor thesis is divided into four main chapters. The first chapter deals with issue of combustion of agropellets in boilers. This section specifies types of pellets, their production and problems of combustion in boilers associated with formation of emissions. The second chapter specifies valid legislation and emissions limits. The third chapter describes fuel analysis of agropellets samples. This includes an analysis in order to determine the properties and chemical composition of agropellets resulting in determination of gross heat and calorific value. The fourth chapter evaluates agropellets influence on boilers and emissions creation on the basis of data and knowledge. The results are compared with data of other commonly used solid fuel found in literature sources.
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Comparison of properties of alternative pellets
Jansa, Oldřich ; Moskalík, Jiří (referee) ; Baláš, Marek (advisor)
This thesis deals with the alternative pellets and the means of production from raw material to final customer. The theoretical part deals with different techniques and manufacturing technologies used. Furthermore, the work deals with Czech and European legislation in the field of fuel pellets. The practical part deals with measuring and comparing the properties of selected standard pellets.
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Utilization of unconventional biomass for energy production
Boumová, Markéta ; Kropáč, Jiří (referee) ; Pavlas, Martin (advisor)
Tato diplomová práce se zabývá netradičními druhy biomasy využitelnými v České republice a Španělsku a jejich srovnáním. V prvních kapitolách jsou popsány netradiční druhy biomasy, mezinárodní projekty, smlouvy a legislativa. V následujích kapitolách je rozbor netradičních druhů biomasy zejména vznikajících z potravinářského průmyslu každé země s detailním rozborem a srovnáním zbytků z průmyslového zpracování slunečnice a oliv. V závěru je uděláno celkové srovnání těchto druhů biomasy České republiky a Španělska z aspektů výkupních cen, výhřevností, vlhkosti a množství popelovin.
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Higher Heating Value of Sewage Sludge
Mikluš, Michal ; Bělohradský, Petr (referee) ; Houdková, Lucie (advisor)
The thesis is focused on problems of thermal treatment of sludge from wastewater treatment plants. The main objective is to establish a formula for calculating higher heating value (HHV) and lower heating value (LHV) of sludge based on its chemical analysis. The work is divided into two main parts: The theoretical part deals with the characteristics of sludge, thermal treatment of sludge, it isn´t omitted higher heating value and lower heating value. The main topic of a practical part is formulation of eguations for HHV and LHV calculation. Chemical analysis of sludge samples were supplied by TÜV NORD Czech s.r.o., together with the values of HHV and LHV. The calculations were verified by the program MINITAB.
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Condensing technology and flue gas
Müller, Jan ; Topič, Jan (referee) ; Počinková, Marcela (advisor)
This thesis is developed as a proposal for heating for a primary school and kindergarten in the region of Brno-countryside. For the insulated building, a combination of heating and air-conditioning is proposed. The concept is designed so that the air-conditioning preheats the exterior air and the heating system warms the incoming air to a comfortable temperature. For the required thermal performance, sources of heat (for gas and pellets) and a layout solution for the boiler room is designed. Drainage of combustion products is proposed for both solutions. The project solution is per the extent of the construction permit. The theoretical part is linked with the practical part through the condensation boilers, their function and division, and drainage of combustion products. The experiment for the given topic was conducted on the drainage of combustion products. The pressure loss of the reverse knob was determined in relation to the flow rate of air in the condensation boilers as this loss is essential in assessing the drainage of combustion products.
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Sludge disposal from wastewater treatment plants in case of transport and sludge incineration
Petříčková, Alena ; Šomplák, Radovan (referee) ; Frýba, Lukáš (advisor)
The bachelor´s thesis in theoretical part deals with the disposal of sludge with respect to legislation, method of sludge treatment and drying technologies. This part is also dedicated to traffic connected with sludge. The practical part includes the calculation of combustion heat and calorific value. This section is also deals with summarization production of sludge and sludge treatment, analysis of these data. This part also includes an overview of the mass flow of sludge across the Czech Republic at locations with extended powers.
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Energy use of agriculture biomass by combustion
ŠPAČEK, Zdeněk
This thesis deals with combustion of lignocelluloses biomass with comparison to cellulose-lignin biomass and with appropriateness of different combustion technologies in the context of the impact on the environment. Furthermore, the thesis deals with content of the heating value in the individual fuels. The heating value capacity was measured experimentally in different kinds of biomass by method of dry distillation and these results were statistically evaluated and and discussed with the findings taken from literature. On the basis of literature data, differences have been discovered in lignocelluloses fuels in terms of calorific value and heating value, calorific values were in average from 15,3 MJ/kg to 16,8 MJ/kg and heating values were 17,5 18,1 MJ/kg. While in cellulose-lignin fuels these differences are not that big and are within values of 19,5 MJ/kg for heating value and an average calorific value is around 18,4 MJ/kg. Measuring of the content of tar and other residual fluid fractions in five the most commonly used bio-fuels from agricultural production (wheat straw, rape straw, hay, energy crops, digestate from biogas station). After statistical evaluation of data, it revealed the difference in content of tar between the wheat straw and digestate (P 0,05; on average 40,48 % for wheat straw and 29,58 % for digestate).
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Energetic usage of grasses
PROKEŠOVÁ, Markéta
Bachelor thesis is focused on effectiveness of targeted cultivation of selected species of grasses for energy purposes (Dactylis glomerata, Arrhenatherum elatius, Phalaris arundinacea). Work compares yields and suitability of selected species of grass growing for energy recovery. Furthermore, for each species of grass evaluates the best date harvesting for energy use direct combustion and biogasification based on the percentage of dry matter and the annual yield of dry matter. Input data used derived from experimentally observed data in the research field plots of perennial plants. Part of the thesis is to summarize the literature about other types of energy crops (Miscanthus sinensis Anderss, Rumex patientia, Populus L.,Zea mays)and compare with them the suitability grasses for growing to energy recovery on the basis of selected production capacity and energy parameters (dry matter yield, energy recovery, heat of combustion).
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