Search results for: ENTRAINED FLOW

• Modeling of entrained flow steam gasification of sewage sludge

  Publication

  • J. Mularski
  • K. Stasiak
  • M. Ostrycharczyk
  • M. Czerep
  • M. Wnukowski
  • K. Krochmalny
  • M. Baranowski
  • P. Ziółkowski
  • M. Kowal
  • Ł. Niedźwiecki... and 2 others

  - Year 2023

  Proper management of sewage sludge becomes increasingly problematic due to legal requirements aiming at diminishing environmental impact, as well as rationalizing the utilization from the point of view of logistics. Steam gasification of sewage sludge can result in very good quality of the producer gas. So far, the works have been focused on the gasification in fixed bed gasifiers. However, this does not allow to take full advantage...

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• Entrained Flow Plasma Gasification of Sewage Sludge–Proof-of-Concept and Fate of Inorganics

  Publication

  • D. Mikielewicz
  • P. Ziółkowski
  • V. Vishwajeet
  • H. Pawlak-kruczek
  • M. Baranowski
  • M. Czerep
  • A. Chorążyczkowski
  • K. Krochmalny
  • K. Ostrycharczyk
  • P. Madejski... and 5 others

  - ENERGIES - Year 2022

  Sewage sludge is a residue of wastewater processing that is biologically active and consists of water, organic matter, including dead and living pathogens, polycyclic aromatic hydrocarbons, and heavy metals, as well as organic and inorganic pollutants. Landfilling is on the decline, giving way to more environmentally friendly utilisation routes. This paper presents the results of a two-stage gasification–vitrification system, using...

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• Transactions of the Institute of Fluid-Flow Machinery

  Journals

  ISSN: 0079-3205

• Trees with equal restrained domination and total restrained domination numbers

  Publication

  • J. Raczek

  - Discussiones Mathematicae Graph Theory - Year 2007

  W publikacji scharakteryzowano wszystkie drzewa, w których liczby dominowania powściągniętego oraz podwójnie totalnego są sobie równe.

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• Restrained differential of a graph

  Publication

  • A. Cabrera-Martinez
  • M. Dettlaff
  • M. Lemańska
  • J. A. Rodriguez-Velazquez

  - Discussiones Mathematicae Graph Theory - Year 2023

  Given a graph $G=(V(G), E(G))$ and a vertex $v\in V(G)$, the {open neighbourhood} of $v$ is defined to be $N(v)=\{u\in V(G) :\, uv\in E(G)\}$. The {external neighbourhood} of a set $S\subseteq V(G)$ is defined as $S_e=\left(\cup_{v\in S}N(v)\right)\setminus S$, while the \emph{restrained external neighbourhood} of $S$ is defined as $S_r=\{v\in S_e : N(v)\cap S_e\neq \varnothing\}$. The restrained differential of a graph $G$ is...

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• DISTRIBUTION OF FLOWS IN A CHANNEL NETWORK UNDER STEADY FLOW CONDITIONS

  Publication

  • D. Gąsiorowski
  • W. Artichowicz

  - Acta Scientiarum Polonorum Formatio Circumiectus - Year 2019

  The article presents an algorithm for calculating the distribution of flow in a junction of open channel network under steady flow conditions. The article presents a simplified calculation algorithm used to estimate the distribution of flow in a network of channels under steady flow conditions. The presented algorithm is based on the continuity equation and a simplified energy equation. To describe the relationship between the...

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• Total restrained bondage in graphs

  Publication

  • J. Raczek
  • R. Hasni
  • N. J. Rad
  • L. Volkmann

  - ACTA MATHEMATICA SINICA-ENGLISH SERIES - Year 2013

  Podzbiór D zbioru wierzchołków grafu nazywamy zewnętrznie totalnym dominującym w grafie, jeśli każdy wierzchołek spoza D ma sąsiada zarówno w D jak i poza D. Moc najmniejszego zbioru o tej własności nazywamy liczbą dominowania zewnętrznie totalnego. W artykule badamy wpływ usuwania krawędzi na liczbę dominowania zewnętrznie totalnego, czyli liczbę zewnętrznego totalnego zniewolenie w grafach.

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• Simplified Numerical Model for Transient Flow of Slurries at Low Concentration

  Publication

  • K. Weinerowska-Bords
  • A. Kodura
  • M. Kubrak

  - ENERGIES - Year 2022

  Rapid transients are particularly dangerous in industrial hydro-transport systems, where solid-liquid mixtures are transported via long pressure pipelines. A mathematical description of such flow is difficult due to the complexity of phenomena and difficulties in determining parameters. The main aim of the study was to examine the influence of the simplified mixture density and wave celerity description on satisfactory reproduction...

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• FLOW TURBULENCE AND COMBUSTION

  Journals

  ISSN: 1386-6184 , eISSN: 1573-1987

• FLOW MEASUREMENT AND INSTRUMENTATION

  Journals

  ISSN: 0955-5986 , eISSN: 1873-6998