This master’s thesis deals with utilization of biomass for micro cogeneration. The theoretical part of the master’s thesis defines main terms of the master’s thesis, which is biomass and cogeneration. The practical part of the master’s thesis is focused on the design and manufacturing of small micro cogeneration unit based on a small membrane steam engine. It means design of two steam generators to produce steam for the membrane steam engine. It will be also carried out design and production of membrane steam engine which is fitted with a small BLDC generator including electrical part for power output and measuring parameters. It will be made several measurements with the steam engine including measuring power output characteristic of the steam engine and measuring loading characteristics of the generator.

This diploma thesis deals with a design of a boiler for stillage combustion. Stoichiometric calculations and enthalpies of combustion gases have been calculated from the specified parameters. In addition, heat calculation, design of the combustion chamber dimensions and dimensioning of heat surfaces were accomplished. The boiler has an evaporator with natural circulation and a fire grate.

The contens of diploma thesis is description of paper and pulp production and analysis of contemporary problems with disposal of sludges rising on industrial waste water treatment plant. Accent is focuses on description of waste water treatment technique, characteristics of rising sludge and the ways of his liquidation in particular plant for pulp production. Fundamental part of this project is evaluation of power and economics balance of current sludge technology in company Biocel Paskov a.s. and suggested sludge management technology. Balances are based on data gained from measurement in laboratory and on data gained from literary research.

Main task of this final thesis is to analyse experimental measured data of prototype unit with output of 1 MW for energic biomass utilization. Furthermore the aim is to get acquainted with energic biomass problems utilization in middle output kettles and with stationary source legislation. To transfer measured value due to legislative conditions this diploma work solves the conversion procedure which is necessary to evaluate emission limits for measured concentration CO, SO2, NOX and stiff contaminating matters. My final work put emphasis on graphics processing in general tables and graphs with trends describtions. Endeavour is achieve discussion bilateral connection.

This thesis deals with a technical economic analysis of the midrange biomass units use. The main output product of the thesis is the computational system based on balance models of cogeneration key nodes. The computational system is suited for cogeneration technologies based on the Rankin steam cycle. The computational system was used for a particular case study calculation focused on a 1 MW biomass boiler extension by an expansion engine (a steam turbine or steam engine).

The thesis aims at current issues of using renewable resources here in the Czech Republic, mainly on biomass co-firing with fossil fuels in large combustion plant. The introduction provides an overview of systems for biomass co-firing. Further the using of optimization for solution problem of integration biomass fuels into existing large combustion plants and planning its operation conditions is presented. The main point of this thesis lies in creating of a user interface for modeling and optimization tool. Its functionality will be proved by solving a case study involving the analysis of possibilities for replacing fossil fuels due to the limited availability of coal in the market.

An objective of this thesis is to design a grate steam boiler for burning straw. Generated steam will be used for technological purposes or cogeneration. Calculations of the heat comes from engaged temperature and pressure of the overheated steam and characteristics of characteristics of the biomass as well.

This thesis deals with reducing the moisture content of biomass drying and its subsequent use as biofuel. The work is a belt drying and its integration into the system with a grate boiler. It proposes a variety of drying options for use of different drying media. In the end, an economic evaluation of the combustion system uses a belt dryer, and a system without any possibility of drying the fuel before it enters the boiler.

The aim of the work is to design a plain wood combustion boiler of 88 t/h output. Fuelling component analysis has been added to the basic boiler parameters. For given fuel is prepared stechiometric calculations. After making the heat balance of boiler is determined the thermal efficiency. For given output of steam parametrs (temparature, pressure, volume) are designed individual convective surfaces and dimensons of the boiler. It is also made drawings.

This thesis describes the design of boilers for wood chips in a gas boiler house. Consisting of boiler house design from concept design suitable heat source to design components necessary for the proper functionality of the boiler house. Part of thesis is compilation of a functional diagram and design of possible solutions.