The aim is to compare and evaluate the production of pellets and short piece of wood to its use for heating houses. Work presents the results of measurements of energy intensity of production short piece of wood per unit volume, compared to naturally drying metods and determination of bulk density at a given humidity. There was also found mechanical resistance, moisture and bulk density of pellets of different manufactures. Conclusion contains the proposal which describes technology for heating a house with use of both types of biofuels.

The object of this diploma thesis is the analysis of foreign trade with fuelwood between Member States of the European Union from 2008 to 2013. The analysis was aimed on finding and evaluation of import, export and trade balance of fuelwood. Consequently, results were commented and evaluated in the context of the RES strategies (National action plans). As a starting point of the thesis was set hypothesis: The EU Member States do not use in implementing the mandatory terms of the share of renewable energy sources only their biomass potential. The result and the trend of the trade balance are affected by the binding indicators.

This thesis is going into matters of saving energy and more general cost reduction processing with preoccupation on pneumatic systems. In the research part are the abstracts of legislative and normative regulations. They relate to the sphere and an analysis of the possible causes of increased operating costs. The practical part of thesis is preoccupation on the analysis of the selected machine lines. Analysis spans monitoring and measuring the energy heftiness of pneumatic system and all of its related parts. Based on the results of the analysis, defined by the potential energy saving and proposed ways to minimize them, the amount of necessary investment capital and payback time can be calculated. Part of the conclusion of the thesis is evaluating proposed solutions and knowledge-based recommendations are formulated to reduction of energy heftiness of pneumatic systems.

Diploma thesis is focused on quantifying the maximum possible amount of usable heat energy from BGP and describing risks limiting the supply of heat energy that can be used for supplies to a heat distribution grid. This thesis deals with the material and energy flows mainly on agricultural biogas plant in Hrotovice focusing on heat supply to the elementary school buildings, hotels, office buildings and other commercial facilities. The text is mainly concerned with the measurement and evaluation of the heat amount being produced, demanded, as well as, excessive heat or its lack in response to demand of two specific customer types. It focuses on identifying the most interesting customer from the producer's point of view and quantifying differences between two main end-customers of thermal energy.

The aim of the study was to determinate digestibility of nutrients from diets for horses. The experiment was conducted on 9 Czech Warmblood horse breed on University school farm at Žabčice. For selected horses we found weight, age and workload. Horses were divided into 3 groups and in three balance periods were have gradually fed them the same amount of feed mixtures and meadow hay. Altogether an attempt fed 3 compound feed (mixtures), in which we analyzed components that were used in the experiment. Feed mixtures consisting from barley, oats, flaxseed meal, bean, dried whey, soybean meal, mineral premix and meadow hay. Diets mutually differed amounts of soybean meal. The experiment was arranged factor - so that no group of horses did not receive the same mixtures of 2x. The results were found to amount spent nutrients and calculated their digestibility. Digestibility of dry matter was 74.07 %+-4,45, crude fat 30.95 %+-23,62, energy 74.57 %+-3,89, nitrogen-free substances 79.79 %+-4,12, crude ash 66.31 %+-14,89, crude protein 80.17 %+-4,59 and crude fiber 69.91 %+-6,64. Digestibility of calcium, we estimated at 75.08 %+-8,35 and phosphorus 51.65 %+-15,93. Due fed mixture resulting difference in digestibility of crude protein at 1.02 % and the group fed mixtures, soybean meal and the group fed mixtures with the highest content of soybean meal (S10). The digestibility coefficients are most affected by the individual characteristics of horses and will need to make further balance for us to objectively determine the digestibility of crude protein in rations.

Karlíková Sabina. Biogas and its status in regional development. Diploma thesis. Brno: Mendel university, 2014 The thesis focuses on analyzing the biogas status in regional development. It primarily provides information about sustainable development, renewable energy, biomass, but attention is mainly devoted to biogas. The practical part presents the situation in Germany, Sweden and Denmark in terms of production and biogas usage, as well as the legislative framework. The result is a comparison of these three states, which, together with the analysis of the concrete situation in the Czech Republic, is the basis for the creation of a model of good practice for Czech Republic.

The goal of this thesis was to propose and evaluate the effectivity of a heat recovery system from ventilation air in a farm for broiler chickens. That was supplemented by an analysis of the needs of chickens in respect to their requirements on air exchange and also by a description of heat recovery methods. Subsequently the calculation, according to Czech regulations, of the need for heat is examined including the description of each element of the heat-balance equation. A heat recovery system is designed based on the calculations and parameters necessary for the evaluation of the annual expenses are defined. Then an amount of batches is planned out into the course of one year and based on that the annual heat consumptions are compared for the option with and without heat recovery systems. The return of the investment, profitability and a total financial profit over the heat recovery systems lifespan are determined from the difference of annual expenses.

The aim of this thesis was to approach the market of solar systems in the Czech Republic and the subsequent design of the solar system in the selected object, in this case RD Divišov. In the chapter Overview of the findings from the literature there are outlined the general knowledge about the Sun and the use of solar radiation. In addition, this chapter provides a general overview of solar collectors followed by the approach of the necessary elements for the functioning of the solar systems. In the chapter Default conditions of the solved object there is characterized the selected one, and there is described the current system in this object. Chapter The design of the solar system in a given object includes the proposal of individual elements of the solar set for water heating. There are compared variants with different demands, different input parameters on the basis of values and graphs chosen the most efficient option for this project. At the end, the economic evaluation of the proposed system with the subsequent comparison with the current system and possible return. The work is ended by summarizing of the whole issue.

The paper evaluates the contribution of newly developed thermally conductive geopolymer (TCG) in high temperature energy thermal storage (HTTES). The work contains a review of energy storage principles with emphasis on storage in the form of heat. Evaluation of the benefits of the thermally conductive geopolymer was carried out by mathematical modeling. Both experiments and modeling itself progressed from simple to more complex. It was documented of knowledge and instrumentation experiments and their evaluation. Thanks to the mathematical modeling experiments are analyzed with simple rock samples, medium-sized experiment with a block of granite with artificial fracture filled by TCG to the actual prototype of thermal energy storage. It was demonstrated positive impact of TCG on distribution of heat in the storage core. The acquired knowledge was used to extrapolate the results and to predict accumulation options of medium-sized storage.

This thesis focuses on problematics of fracture mechanics. It aimes to comprehensively explain theoretical knowledge in both Czech Republic and abroad, where a research of this field is taken more often. Based on theoretical research best way to determine fracture toughness was selected. For this purpose three sets of spruce specimens (using three different adhesives) were created and tested by 3ENF test under the mode II while being monitored by digital image correlation method. From these values strain release rate energy and fracture toughness of tested specimens were determined. The thesis compares found data and analyses their correlations.