Prohlížení Acta Polytechnica. 2014, vol. 54, no. 1 dle názvu

Zobrazují se záznamy 6-14 z 14

    • LABORATORY EQUIPMENT FOR AUTOTHERMAL REFORMING OF ORGANIC MATTER IN SUPERCRITICAL WATER 

      Autor: Gajdoš , Matúš
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      The ability of water to dissolve organic substances is very limited. However, its ability to dissolve them changes if pressure and temperature values reach the so-called critical point (p = 22.06MPa, T = 373.95 °C). Fluid ...

    • NOx PREDICTION FOR FBC BOILERS USING EMPIRICAL MODELS 

      Autor: Štefanica , Jiří; Hrdlička , Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      Reliable prediction of NOx emissions can provide useful information for boiler design and fuel selection. Recently used kinetic prediction models for FBC boilers are overly complex and require large computing capacity. ...

    • SIZE ANALYSIS OF SOLID PARTICLES AT THE EXPERIMENTAL DEVICE FOR MULTI-STAGE BIOMASS COMBUSTION 

      Autor: Hrnčířová , Michaela; Špiláček , Michal; Pospíšil , Jiří
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      This paper presents the results of an analysis of ash content particles produced in biomass combustion at an experimental device. The main parts of the device are: the water heater, the gasifying chamber, the air preheater, ...

    • SPECIFIC EMISSIONS FROM BIOMASS COMBUSTION 

      Autor: Skopec , Pavel; Hrdlička , Jan; Kaválek , Michal
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      This paper deals with determining the specific emissions from the combustion of two kinds of biomass fuels in a small-scale boiler. The tested fuels were pellets made of wood and pellets made of rape plant straw. In order ...

    • STABILIZATION TIME AS AN IMPORTANT PARAMETER AFTER DENSIFICATION OF SOLID BIOFUELS 

      Autor: Križan , Peter; Matúš , Miloš; Beniak , Juraj; Kováčová , Monika
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      The aim of this paper is to present some preliminary results from experimental research on the densification process of solid high-grade biofuels. The findings presented in this paper contribute to an investigation of the ...

    • TECHNICAL AND ECONOMIC OPTIMIZATION OF COGENERATION TECHNOLOGY USING COMBUSTION AND GASIFICATION 

      Autor: Lisý , Martin; Baláš , Marek; Špiláček , Michal; Skála , Zdenek
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      This paper presents the technical and economic optimization of new microcogeneration technology with biomass combustion or biomass gasification used for cogeneration of electrical energy and heat for a 200 kW unit. During ...

    • THE EFFECT OF ADDING HYDROGEN ON THE PERFORMANCE AND THE CYCLIC VARIABILITY OF A SPARK IGNITION ENGINE POWERED BY NATURAL GAS 

      Autor: Chríbik , Andrej; Polóni , Marián; Lach , Ján; Ragan , Branislav
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      This paper deals with the influence of blending hydrogen (from 0 to 50% vol.) on the parameters and the cyclic variability of a Lombardini LGW702 combustion engine powered by natural gas. The experimental measurements were ...

    • THE INFLUENCE OF SIZE FRACTION ON THE COMPRESSIBILITY OF PINE SAWDUST AND THE EFFECTIVENESS CRITERION FOR DENSIFICATION 

      Autor: Matúš , Miloš; Križan , Peter; Kováčová , Monika; Beniak , Juraj
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      Particulate matter from biomass, e.g. wood sawdust, is very diverse. The basic parameter describing the densification process of particulate matter is its compressibility, quantified by the coefficient of compressibility. ...

    • THE OPERATING LOAD OF A DISINTEGRATION MACHINE 

      Autor: Beniak , Juraj; Križan , Peter; Matúš , Miloš; Kováčová , Monika
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2014)
      The process of disintegration is affected by a large number of operating and design parameters which have not previously been described in detail. This paper discusses the effect of the disintegrative surface area on the ...