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Zobrazují se záznamy 1-19 z 19

    • Optimal Combustion Conditions for a Smallscale Biomass Boiler 

      Autor: Plaček , Viktor; Oswald , Cyril; Hrdlička , Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      This paper reports on an attempt to achieve maximum efficiency and lowest possible emissions for a small-scale biomass boiler. This aim can be attained only by changing the control algorithm of the boiler, and in this way ...
    • Plasma Surface Treatment of Powder Materials — Process and Application 

      Autor: Pavlatová , Monika; Horáková , Marta; Hladík , Jan; Špatenka , Petr
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      Polyolefin particles are hydrophobic, and this prevents their use for various applications. Plasma treatment is an environment-friendly polyolefin hydrophilisation method. We developed an industrial-scale plant for plasma ...
    • Research and development of CO2 Capture and Storage Technologies in Fossil Fuel Power Plants 

      Autor: Pilař , Lukáš; Hrdlička , Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      This paper presents the results of a research project on the suitability of post-combustion CCS technology in the Czech Republic. It describes the ammonia CO2 separation method and its advantages and disadvantages. The ...
    • Effect of Gas Mixture Composition on the Parameters of an Internal Combustion Engine 

      Autor: Chríbik , Andrej; Polóni , Marián; Lach , Ján
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      This paper deals with the use of the internal combustion piston engine, which is a drive unit for micro-cogeneration units. The introduction is a brief statement of the nature of gas mixture compositions that are useful ...
    • A Neural Network Model for Predicting NOx at the Mělník 1 

      Autor: Bukovský , Ivo; Kolovratník , Michal
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      This paper presents a non-conventional dynamic neural network that was designed for real time prediction of NOx at the coal powder power plant Mělnik 1, and results on real data are shown and discussed. The paper also ...
    • Experimental Investigation of Radial Gas Dispersion Coefficients in a Fluidized Bed 

      Autor: Štefanica , Jiří; Hrdlička , Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      In a fluidized bed boiler, the combustion efficiency, the NOX formation rate, flue gas desulphurization and fluidized bed heat transfer are all ruled by the gas distribution. In this investigation, the tracer gas method ...
    • Explosion Cladding of Lead on Steel 

      Autor: Turňa , Milan; Ondruška , Jozef; Turňová , Zuzana
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      This work deals with explosion cladding of lead on steel. The welded materials and the Semtex S type explosive are characterised. The preparation of the welded materials and the proposed welding assembly are described. The ...
    • Energy Recovery from Contaminated Biomass 

      Autor: Moskalík , Jiří; Škvařil , Jan; Štelcl , Otakar; Baláš , Marek; Lisý , Martin
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      This study focuses on thermal gasification methods of contaminated biomass in an atmospheric fluidized bed, especially biomass contaminated by undesirable substances in its primary use. For the experiments, chipboard waste ...
    • Heat Exchangers for Condensation and Evaporation Applications Operating in a Low Pressure Atmosphere 

      Autor: Kracík , Petr; Pospíšil , Jiří; Šnajdárek , Ladislav
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      This paper presents a state-of-the-art study of a heat transfer process in liquid spraying heat exchangers placed in a vacuum chamber. The experimental case studied here describes the behavior of a falling film evaporation ...
    • Change of Pressing Chamber Conicalness at Briquetting Process in Briquetting Machine Pressing Chamber 

      Autor: Križan , Peter; Matúš , Miloš; Kers , Jaan; Vukelić , Djordje
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      In this paper, we will present the impact of the conical shape of a pressing chamber, an important structural parameter. Besides the known impact of the technological parameters of pressing chambers, it is also very important ...
    • Use of Grasses and Mixtures of Grasses for Energy Purposes 

      Autor: Andert , David; Frydrych , Jan; Gerndtová , Ilona
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      As levels of agricultural productivity increase, there is also an increase in land area not utilized for food production. This area can be used for growing energy crops, including grasses. When land is set aside for grassing, ...
    • Idealized Compression Ratio for a Screw Briquetting Press 

      Autor: Biath , Peter; Ondruška , Juraj
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      This paper deals with issues in determining the ideal compression ratio for a screw briquetting press. First, the principles of operation and a basic description of the main parts of a screw briquetting press are introduced. ...
    • Biomass Gasification — Primary Methods for Eliminating Tar 

      Autor: Lisý , Martin; Baláš , Marek; Moskalík , Jiří; Štelcl , Otakar
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      This present paper deals with primary methods for reducing tar in biomass gasification, namely by feeding a natural catalyst into a fluidized bed. This method is verified using an experimental pilot plant.
    • Modularity of Pressing Tools for Screw Press Producing Solid Biofuels 

      Autor: Matúš , Miloš; Križan , Peter
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      This paper focuses on the development of the newly-patented structure of a screw briquetting machine for compacting biomass into a solid biofuel. The design of the machine is based on the results of a comprehensive study ...
    • Production of Biocellulosic Ethanol from Wheat Straw 

      Autor: Ismail ,; Ali , W.; Braim ,; Rasul , R.; Ketuly ,; Aziz , K.; Bujag , Awang; Shamsiah , D. Siti; Arifin ,; Zainudin ,
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      Wheat straw is an abundant lignocellulosic feedstock in many parts of the world, and has been selected for producing ethanol in an economically feasible manner. It contains a mixture of sugars (hexoses and pentoses).Two-stage ...
    • A Thermogravimetric Study of the Behaviour of Biomass Blends During Combustion 

      Autor: Jiříček , Ivo; Rudasová , Pavla; Žemlová , Tereza
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      The ignition and combustion behavior of biomass and biomass blends under typical heating conditions were investigated. Thermogravimetric analyses were performed on stalk and woody biomass, alone and blended with various ...
    • Labscale Technology for Biogas Production from Lignocellulose Wastes 

      Autor: Krátký , Lukáš; Jirout , Tomáš; Nalezenec , Jiří
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      Currently-operating biogas plants are based on the treatment of lignocellulose biomass, which is included in materials such as agriculture and forestry wastes, municipal solid wastes, waste paper, wood and herbaceous energy ...
    • Resistance Spot Welding of dissimilar Steels 

      Autor: Kolařík , Ladislav; Sahul , Miroslav; Kolaříková , Marie; Sahul , Martin; Turňa , Milan; Felix , Michal
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      This paper presents an analysis of the properties of resistance spot welds between low carbon steel and austenitic CrNi stainless steel. The thickness of the welded dissimilar materials was 2 mm. A DeltaSpot welding gun ...
    • Measurement of O2 in the Combustion Chamber of Apulverized Coal Boiler 

      Autor: Janeba , Břetislav; Kolovratník , Michal; Bartoš , Ondřej
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2012)
      Operational measurements of the O2 concentration in the combustion chamber of a pulverized coal boiler are not yet common practice. Operators are generally satisfied with measuring the O2 concentration in the second pass ...