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Re-design of biomass boiler for very wet fuel
Zbořil, Martin ; Skála, Zdeněk (referee) ; Lisý, Martin (advisor)
The aim of this thesis is to calculate the stoichiometric balance of boilers and boiler fuel for normal monture to 60%. Determine the monture, content depending on the conditions of the fuel in the combustion chamber and conditions of combustion. Experimental analysis of the current state of the boiler ZKG measurements using this device and propose modifications and solutions.
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Modular Horizontal Heat Recovery Steam Generator
Primes, Alois ; Nantl, Radomír (referee) ; Lisý, Martin (advisor)
This thesis deals with the design of a Heat Recovery Steam Generator (HRSG). Theintroductory part is devoted to a brief description of the boiler, the specified parametersand the compilation of the temperature profile. The main computational part of thiswork is divided into 6 parts. The first contains preparatory calculations, including thecalculation of boiler eiciency. In the second part, a flue gas duct is designed. This isfollowed by a thermal calculation of the boiler for all heat exchange surfaces. The last 3parts deal with the design of the drum, piping and the loss of boiler draft calculation.
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Reducing the energy intensity of production area
Tannert, Jiří ; Lisý, Martin (referee) ; Pospíšil, Jiří (advisor)
The diploma thesis deals with possibilities and subsequent proposal of individual measures to achieve the reduction of energy intensity in the company fischer Vyškov, s.r.o. At the beginning of the thesis is the analysis of the current state of the areas on which the work is further focused. These include the production of compressed air, cooling technology and lighting. The main cost-saving measures for the production of compressed air is a proposal to purchase a new compressor. For cooling, there are free cooling options, including the design of a dry cooler and its inclusion in the cooling circuit. The last part is the design of a new lighting system using LED lamps.
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Syngas Cleaning in Hot Catalytic Filter
Lisý, Martin ; Skála, Zdeněk (advisor)
Disertation thesis deals with development of hot dolomite filter for the purposes of cleaning of gas polluted by biomass and waste gasification with ash and tar as well as sulphur and chlorine compounds as main pollutants. Gas is then cleaned so that it can be utilized in cogeneration units with combustion engines. This supports advancement of gasification techniques using decentralized power and heat generation especially for design of small scale units. Concrete aims of this thesis are stated in chapter 2. Experimental fluid gasification stend Biofluid 100 has been in operations at Brno University of Technology (BUT) since 2000 and it helps research of biomass and waste gasification. Development of the filter initially utilized needs and experience with the utility during cooperation of BUT and ATEKO Hradec Králové. Water scrubber was used for gas cleaning, however, this method proved to be ineffective. Alternative solutions were considered. Based on literature search, natural catalysts with limestone basis were opted. First part of the thesis presents literature search of this issue. Historic development and description of gasification process are briefly discussed as well as elementary classification of gasification generators. This part is followed by chapters dealing with gas pollutants. Tar – the most significant pollutant – is discussed in a separate chapter which presents tar formation, its classification, characteristics and methods for its removal. Brief summary of requirements on gas properties with respect to its utilization in various applications (especially in cogeneration units) follows. Other part of the literature search part focuses on methods of removal of tar from gas, especially on catalyst methods. Dolomite characteristics, description of dolomite calcination as well as simplified kinetic model of tar cracking using dolomite are presented. Based on literature search, laboratory and verification equipment was designed for the purposes of dolomite properties testing. Equipment description as well as description of experimental stend Biofluid 100 where the experimental tests were carried out can be found in introduction of the experimental part. This is followed by a complete description of pilot equipment design of hot dolomite filter with general description of experimental work process, brief characteristics of the fuel and catalytic material used. Final part of the work comprises of experiment results that were carried out on the pilot equipment. Focus is on efficiency of tar removal in connection with operation temperature, amount of catalytist and material used. Influence of these parameters on gas composition and energy intensity of the whole process under these conditions is mentioned as well. Possibility of autonomous unit operations without electricity heating is briefly outlined. Summary of the most significant results including the potential of future hot dolomite filter development is stated the final part of the thesis.
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Modelling of flow of two gases
Strouhal, Jiří ; Lisý, Martin (referee) ; Špiláček, Michal (advisor)
This bachelor‘s thesis deals with interaction of two gases of different temperature and chemical composition in gasification chamber ZKG. The first chapter of the thesis is focused on biomass as a renewable energy source. At first, there is definition of term biomass and then description of physical and chemical properties, by-product and basic types of biomass. There are also described the processes of pyrolysis and combustion. The second chapter is focused on different types of combustion and gasification devices. The third chapter of theoretical research briefly introduces basic methods of CFD modeling of processes in gasification chamber including turbulent flow, transport of chemical species and heat transfer. These methods are used for case mixing of combustion air and wood gas in combustion chamber ZKG. In conclusions are evaluated the results of simulation.
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Modern Trends of Heating of Family House
Marcin, Richard ; Moskalík, Jiří (referee) ; Lisý, Martin (advisor)
The aim of this bachelor’s thesis was to summarize current knowledge of heating technology, including new houses, which have great potential this direction. In the first part this thesis describes history of the heating systems and their development. Next part contains knowledge and principles of the systems using alternative sources of the energy. Last section is devoted to overview of this systems and their design for households.
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Optimation and Innovation of Family Houses Heating
Dubnický, Ladislav ; Špiláček, Michal (referee) ; Lisý, Martin (advisor)
The aim of this bachelor thesis is to make a summary of knowledge of today´s modern heating systems for family houses. Each types of systems are compared to each other from economic, operating and ecologic point of view. At the end of the thesis there is a model conversion of energetic costs for specific family house and projection of new heating system.
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Heating of Family House by Heat Pumps
Sláma, David ; Moskalík, Jiří (referee) ; Lisý, Martin (advisor)
This bachelor thesis deals with heating of family house by heating pumps. The main task was to design a suitable heating pump for a chosen family house. Here is given the method of calculation total heat loss of building. Depending on the performance characteristics are compared two types of heat pumps, and will be selected the appropriate one. The last part compares the seasonal performance factors (spf) 3 and 5.
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Effective Heating Systems for Family Houses
Čulík, Martin ; Poláčik, Ján (referee) ; Lisý, Martin (advisor)
This bachelor’s thesis deals with a summary of basic information and possibilities of heating family houses. Designing the right type of heating system is really important factor for a good operation of heating and also for the right comfort inside of the house. There will be description and calculations of the specific house in the second part of the thesis.
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Heating of Family House by Biomass
Suk, Ladislav ; Baláš, Marek (referee) ; Lisý, Martin (advisor)
With an increasing retreat from fossil fuels to renewable sources, we are returning to the traditional sources proved by time and improved by the use of new technology. The aim of this thesis is to familiarize the reader with the possibilities in using biomass to heat buildings through existing means. To offer a detailed examination of design of boilers, their properties and uses. To assess economic and time related demands on individual solutions in the real world.
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