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Katarzyna Jagodzińska
Silesian University of Technology
7Publications
Publications 7
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#1Katarzyna Jagodzińska (Silesian University of Technology)
#2Michał CzerepH-Index: 4
Last.Weihong Yang (KTH: Royal Institute of Technology)
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Abstract Until now, few studies on the valorisation of torrefaction condensable volatiles (condensates) have been performed. The composition and toxicity of torrefaction condensable volatiles determine their possible applications. Therefore, a study on the composition of wheat-barley straw torrefaction condensates, combined with toxicity tests, was performed. This analysis was mainly aimed at the utilisation of these condensates as an anaerobic digestion substrate. The torrefaction process was p...
#1Katarzyna Jagodzińska (Silesian University of Technology)
#2Kazimierz Mroczek (Silesian University of Technology)H-Index: 2
Last.Sylwester Kalisz (Silesian University of Technology)H-Index: 9
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Abstract Up to now, a few studies on the efficiency of heavy metal(-oid)s capture by a sorbent directly mixed with fuel, have been performed. For this reason, the main objective of the study is to determine whether or not such a solution is effective when RDF is incinerated. The paper presents a two-step analysis of the impact of three sorbents (ammonium sulphate, kaolinite and halloysite) in three dosages (2, 4 and 8 wt%) on heavy metal(-oid)s retention in the bottom ash. 12 heavy metal(-oid)s ...
#2R. Wejkowski (Silesian University of Technology)H-Index: 3
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The paper presents the results of physical and numerical tests of fluid flow through the filling of a rotary air heater (RAH). A laboratory-scale test bench was used to measure flow resistance across a fragment of a RAH. Seven types of RAH modules were tested - one steel and six ceramic (as catalyst carriers). The relationship between pressure drop and velocity (Re number) of flow was used to deduce the flow characteristics for each of the RAH modules tested. Measurements carried out on the test...
#1Marek Pronobis (Silesian University of Technology)H-Index: 9
#2Kazimierz Mroczek (Silesian University of Technology)H-Index: 2
Last.Katarzyna Jagodzińska (Silesian University of Technology)
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Abstract A method for choosing the optimum fineness of coal in pulverised-fuel boilers is presented. This method is based on economic criteria and takes into account variations of the power unit load as well as the durability and the output of pulverisers. Calculations are performed for short periods of time (e.g. 1 h), provided that it is possible to change the fineness of the coal by controlling the angle of the classifier guide vanes. Therefore, the optimum value, adapted to the current param...
#1Marek Pronobis (Silesian University of Technology)H-Index: 9
#2R. Wejkowski (Silesian University of Technology)H-Index: 3
Last.Tomasz Kress (Silesian University of Technology)
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SNCR (Selective Non-Catalytic Reduction) technology is aimed at reducing NO x emissions. SNCR efficiency is appropriately high only for the reaction temperature range called ‘the SNCR temperature window’. It is a narrow temperature range defined in various ways in the literature, which makes it difficult to evaluate the DeNO x system’s efficiency. Therefore, this study attempts to approximate the relationship between SNCR system efficiency and the flue gas temperature. The approximation was perf...
#1Katarzyna Jagodzińska (Silesian University of Technology)
#2Bartłomiej Hernik (Silesian University of Technology)H-Index: 2
Last.Marek Pronobis (Silesian University of Technology)H-Index: 9
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#1Katarzyna Jagodzińska (Silesian University of Technology)
#2Marek Pronobis (Silesian University of Technology)H-Index: 9
Last.Bartłomiej Hernik (Silesian University of Technology)H-Index: 2
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The study attempts to evaluate the impact of combustion of torrefied willow (Latin: Salix viminalis) and palm kernel shell (Latin: Elaeis guineensis) on the heat exchange in a 140 t/h PC boiler through an analysis of 6 cases for different boiler loads (60 %, 75 % and 100 %) and a comparison with coal combustion. The analysis is premised on a 0-dimensional model based on the method presented in [15, 16, 17] and long-standing experimental measurements. Inter alia , the following results are presen...
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