Wyniki wyszukiwania - Biblioteka Nauki

1

Experimental investigation of boiling phenomena in a debris bed

100%

Schafer P. , Steiner D. , Kulenovic R. , Groll M.

Archives of Thermodynamics

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2002

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tom Vol. 23, no 4

29-38

EN

An experimental investigation of boiling phenomena in an inductively heated cylindrical debris bed (height 640 mm, diameter 125 mm, 6 mm resp. 3 mm stainless stel balls) has been performed. Boiling experiments (bottom- and top-fed) as well as dryout experiments have been carried out under atmospheric pressure. The pressure gradients inside the bed and the dryout heat flux have been determined. The experimental data of the pressure gradient show reasonable agreement with simulation data of IKE's WABE code, in which various interfacial drag models have been considered and compared.

2

CFD Modelling of CO2 Capture in a Packed Bed by Chemical Absorption

88%

Asendrych D. , Niegodajew P. , Drobniak S.

Chemical and Process Engineering

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2013

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tom 34

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nr 2

269-282

EN

The paper deals with numerical modelling of carbon dioxide capture by amine solvent from flue gases in post-combustion technology. A complex flow system including a countercurrent two-phase flow in a porous region, chemical reaction and heat transfer is considered to resolve CO2 absorption. In order to approach the hydrodynamics of the process a two-fluid Eulerian model was applied. At the present stage of model development only the first part of the cycle, i.e. CO2 absorption was included. A series of parametric simulations has shown that carbon dioxide capture efficiency is mostly influenced by the ratio of liquid (aqueous amine solution) to gas (flue gases) mass fluxes. Good consistency of numerical results with experimental data acquired at a small-scale laboratory CO2 capture installation (at the Institute for Chemical Processing of Coal, Zabrze, Poland) has proved the reliability of the model.

3

CFD Modelling of CO2 Capture in a Packed Bed by Chemical Absorption

75%

Dariusz Asendrych D. , Niegodajew P. , Drobniak S.

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2013

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nr 2

4

CFD modelling of CO2 capture in a packed bed by chemical absorption

63%

Asendrych D. , Niegodajew P. , Drobniak S.

Chemical and Process Engineering

|

2013

|

tom Vol. 34, nr 2

269--282

EN

The paper deals with numerical modelling of carbon dioxide capture by amine solvent from flue gases in post-combustion technology. A complex flow system including a countercurrent two-phase flow in a porous region, chemical reaction and heat transfer is considered to resolve CO2 absorption. In order to approach the hydrodynamics of the process a two-fluid Eulerian model was applied. At the present stage of model development only the first part of the cycle, i.e. CO2 absorption was included. A series of parametric simulations has shown that carbon dioxide capture efficiency is mostly influenced by the ratio of liquid (aqueous amine solution) to gas (flue gases) mass fluxes. Good consistency of numerical results with experimental data acquired at a small-scale laboratory CO2 capture installation (at the Institute for Chemical Processing of Coal, Zabrze, Poland) has proved the reliability of the model.