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Drying of biomass
Gruber, Jan ; Baláš, Marek (referee) ; Pospíšil, Jiří (advisor)
This thesis deals with the drying of biomass, especially drying of small wood mass. The various drying methods, such as belt drying, fluidized bed drying and drum drying are compared including their advantages and disadvantages. It is suggested basic technological scheme of drying line. The last part of the thesis deals with a calculation of drum dryer of specified performance and economic balance is made.
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Business plan
Kramářová, Vladimíra ; Huml, Jan (advisor) ; Petr, Petr (referee)
The aim of the dissertation works is the business project focused on the creation of a new company named Dior Ltd. The company is engaged in manufacturing wood pellets. In the introduction there are written legislative conditions for business in the Czech Republic, there is also explained method for creation of business project and characterized pellets as a kind of fuel. In the practical part they are systematically developed various parts of the business project of Dior Ltd. The financial analysis and the risk analysis is a part of business project. The results of these analyzes are derived specific conclusions and recommendations.
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Drying of biomass
Gruber, Jan ; Baláš, Marek (referee) ; Pospíšil, Jiří (advisor)
This thesis deals with the drying of biomass, especially drying of small wood mass. The various drying methods, such as belt drying, fluidized bed drying and drum drying are compared including their advantages and disadvantages. It is suggested basic technological scheme of drying line. The last part of the thesis deals with a calculation of drum dryer of specified performance and economic balance is made.
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Using of process the steam explosion at production of biogas from hay
BRAUN, Petr
Pellets from haylage, respectively hay were extruded in an extruder working with a high temperature according to the utility model CZ 21314 with different parameters. The researched parameters of extrusion with a constant time delay were a pressure extrusion and volatile solids. The highest production of methane (CH4) at a fermentation with the temperature 40 °C was monitored from the haylage with a content of the volatile solids 10,6 - 11 % by extrusion with the pressure 1,37 MPa. The highest production of CH4 at a fermentation with the temperature 50 °C was monitored from the haylage with a content of the volatile solids 13,5 - 16,7 % by extrusion with the pressure 1,37 - 1,66 MPa. A kontent of the volatile solids 11,5 % of haylage and extrusion with the pressure 1,35 ? 1,4 were estimated like optimum parameters for a fermentation with the temperature 40 - 50 °C with the highest production of CH4. For evaluation of the effectiveness of investment was used the metod of net present value (NPV). This method is the most commonly used and in most cases the most appropriate.
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