Comparison of eddy dissipation concept and finite-rate/eddy dissipation models in case of coal gasification in a two-stage entrained flow gasifier and their relation to the experimental results

• Autorzy: Mularski, J. , Modliński, N. , Pawlak-Kruczek, H.

Warianty tytułu

PL

Porównanie modelu eddy dissipation concept z modelem finite-rate/eddy dissipation model pod kątem procesu zgazowania w dwustopniowym reaktorze strumieniowym oraz zestawienie uzyskanych wyników z wynikami eksperymentalnymi

• Języki publikacji: EN

Abstrakty

EN

In this paper, a CFD tool – Ansys Fluent 17.2 was applied to obtain a 3-D operational model of a 200 td-1 pilot-scale gasifier that was tested in Japan. The gasifier is an up-flow co-current reactor comprising combustor and reductor separated by a throat. For the modelling procedure, the Eulerian-Lagrangian method has been used. Euler approach describes the gas phase processes, whereas Lagrange describes the solid phase. The aim of this paper is at first to compare simulation results of two turbulence-chemistry interaction procedures available in Ansys Fluent and their impact on coal gasification and secondly to compare obtained results with the experiment.

PL

W tej pracy zastosowano program CFD – Ansys Fluent 17.2, aby otrzymać model 3D pilotażowej zgazowarki MHI 200 t/d, która była testowana w Japonii. Jest to reaktor współprądowy typu up-flow zawierający komorę spalania oraz reduktor oddzielone od siebie przez gardziel. Do otrzymania modelu zastosowano podejście Lagrange’a-Eulera. Faza dyspersyjna opisywana jest metodą Lagrange’a, natomiast faza ciągła – gazowa metodą Eulera. Celem tego badania było porównanie dwóch modeli opisujących wzajemne interakcje między kinetyką reakcji a turbulencją pod kątem całego procesu zgazowania oraz zestawienie uzyskanych wyników z wynikami eksperymentalnymi.

Słowa kluczowe

PL

CFD; reaktor strumieniowy; zgazowanie węgla; powietrze; metoda Lagrange’a-Eulera

EN

CFD; entrained flow gasifier; coal gasification; air; Euler-Lagrange approach

• Czasopismo: Rynek Energii
• Rocznik: 2018
• Tom: Nr 4
• Strony: 97--106
• Opis fizyczny: Bibliogr. 26 poz., fig., tab.

Twórcy

autor

Mularski, J.

• doktorant Politechnika Wrocławska,

autor

Modliński, N.

• Politechnika Wrocławska,

autor

Pawlak-Kruczek, H.

• Politechnika Wrocławska,

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2018).