The milling process is a complex phenomenon dependent on various technological and material parameters. development of fluidized bed jet model high practical significance, since utilized in many industries, its complexity still not sufficiently recognized. Therefore, this research aims to optimize with the use fuzzy logic (FL) based approach as one primary artificial intelligence (AI) methods. developed (FLMill) investigated allows it be described non-iterative procedure, over wide range...

Poland, which has been a European Union member since 2004, undertaken compliance with its commitments to increase share in the generation of energy from renewable sources. The target set for 2020, is attain 15 percent gross final consumption coming sources, met by Poland. new targets 2030, incorporated draft Energy Policy Poland 2040, assume an at least 23 proportion obtained sources consumption. On basis data Central Statistical Office, authors this work analysed changes electricity based...

Air classifier devices have a distinct advantage over other systems used to separate materials. They maximize the mill's capacity and therefore constitute efficient methods of reducing energy consumption crushing grinding operations. Since improvement in their performance is challenging, development an modeling system great practical significance. The paper introduces novel, knowledge-based classification (FLClass) bulk A wide range operating parameters are considered study: mean mass Sauter...

Along with the development of civilisation, it can be observed that amount waste different type is growing and preparation process for further usage or utilization differs. What to focused on municipal sewage sludge which, due its energetic properties, constitutes a valuable fuel. The problem remains still unsolved, which stems both from increasing such waste, lack properly adjusted systems thermal processing thereof. an additional obstacle are increasingly stricter legal regulations...

Heating steel charges is essential for proper charge formation. At the same time, it a highly energy-intensive process. Limiting scale formed critical reducing heat consumption in this This paper applies fuzzy logic to model heating and formation industrial re-heating furnaces. Scale depends on temperature of initial charge, excess air coefficient value, thickness. These parameters were determined based experimental tests, which are also inputs analyzed The research was carried out walking...

Microalgae are expected to become an important source of highvalue products with several applications in a large number areas biotechnology and, especially, biofuels production. The increasing interest microalgae as biofuel (so-called third generation biofuel) is due the advantages. objective this study was investigate combustion characteristics (Oscillatoria sp.) pellets burnt circulating fluidized-bed (CFB) terms sample temperature profiles, ignition time, temperature, devolatilization...

The research and modeling the classification effects in a fluidized bed opposed jet mill are presented. Particle distribution is result of interaction between two stages this mill: gravity above bed, centrifugal classifier. objective study to develop model multi-stage apply process question. universal algorithm constructing matrix arbitrary complex circuit proposed example its application experimental identification parameters was carried out.

Abstract The cut size determination on the basis of proposed matrix model classification process in a centrifugal air flow classifier with fluidized bed is presented using model. methodology based precise measurement total mass fed material and coarse product experimental tests. Knowledge feed particle distribution also required. Considered part jet mill. will allow to optimize mill work prediction products.

Raw materials are used in many industrial technologies. The raw material frequently has to be prepared as an intermediate with appropriate particle size distribution, which requires the use of grinding. In grinding processes, energy consumption is a very important profitability criterion for applied particular reduction technology. paper describes comminution process that takes place jet mill using modified form thermodynamic theory this theory, new characteristics have been added: surface...

Abstract The paper presents an application of the Boltzmann kinetic equation to simultaneous modeling multi-dimensional processes. This defines evolution distribution probability density in a given phase space. In case grinding process, considered space is defined by Cartesian coordinates particle position, components velocity and size. theory Markov processes used solve for system states. order verify presented model, research into comminution movement material drum ball mill was performed....

A comparative analysis of thermal properties semi-crystalline and amorphous polymeric materials was carried out. Samples were produced using 3D printing technology on the SIGNAL-ATMAT printer. The following used to make samples: thermoplastic polyurethane elastomer, acryloni-trile-butadiene-styrene copolymer, Laywood, ethylene terephthalate, poly (lactic acid). tested for their mechanical properties. research included by differential scanning calorimetry manufactured materials. tensile...

The article presents an analysis of the possibilities using Krischer model to determine effective thermal conductivity steel bar bundles for which solid-phase is low-carbon and gas-phase air.The results experimental research were used this purpose.The was carried out temperature range 0-800 • C. Two solutions considered, full simplified.In simplified solution, it assumed that value weighting parameter f depends only on diameter bars.It shown solution differ from by about 5%.This result...

The Maxwell-Boltzmann distribution in its classic form concerns the of perfect gas particles into energy levels.In paper, it was used to describe ground grains brittle substance as a function grain size, which allowed describing particle size process product.The product identified with effect grinding process, is an extremely important parameter for description entire process.The results calculations were presented and compared experimental analyses.The experiment carried out at different...

Two problems are particularly important in the works devoted to grinding process.One of them (the theory) is dependence that describes relationship between energy supplied process and its effect.The second issue description particles size distribution product.Grinding theories generally not universal.They relatively reliably describe effect cause-and-effect crushing process, others -in mechanical mills, still superfine comminution process.The so-called thermodynamic theory discussed present...