Temat: Hydrodynamika - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Scaling of flow phenomena in circulating fluidized bed boilers
Autorzy:: Mirek, P.
Powiązania:: https://bibliotekanauki.pl/articles/185439.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: hydrodynamika
fluidyzacja
scaling
fluidized bed
hydrodynamics
Opis:: The paper presents an overview of scaling models used for determining hydrodynamic parameters of Circulating Fluidized Bed boilers. The governing equations and the corresponding dimensionless numbers are derived and presented for three different approaches to the scaling law of fluidized beds: classical dimensional analysis, differential equations and integrated solutions and experimental correlations. Some results obtained with these equations are presented. Finally, the capabilities and limitations of scaling experiments are discussed.
Źródło:: Chemical and Process Engineering; 2011, 32, 2; 91-100
0208-6425
2300-1925
Pojawia się w:: Chemical and Process Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: The influence of sampling point on solids suspension density applied in scaling of the hydrodynamics of a supercritical CFB boiler
Autorzy:: Mirek, P.
Ziaja, J.
Powiązania:: https://bibliotekanauki.pl/articles/185607.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: hydrodynamika
skalowanie
circulating fluidised bed
hydrodynamics
scaling
Opis:: The article presents the results of laboratory tests carried out on a scaling model of the 966MW the fluidised-bed boiler operating in the Lagisza Power Plant, made on a scale of 1:20 while preserving the geometrical similarity. The tests were carried out for scaled-down material taken from different locations on the circulation contour in the state of full boiler loading. To reflect the hydrodynamic conditions prevailing in the combustion chamber, solids with properly selected density and particle size distribution were used. The obtained results have made it possible to determine the location for taking the most representative granular material sample.
Źródło:: Chemical and Process Engineering; 2011, 32, 4; 391-399
0208-6425
2300-1925
Pojawia się w:: Chemical and Process Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: A simplified methodolgy for scaling hydrodynamic data from Lagisza 460 MWC supercritical CFB boiler
Autorzy:: Mirek, P.
Powiązania:: https://bibliotekanauki.pl/articles/185646.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: hydrodynamika
skalowanie
złoże fluidalne
hydrodynamics
circulating fluidized bed
scaling
Opis:: The paper presents the results of model studies on the hydrodynamics of the world's first supercritical circulating fluidized bed boiler Lagisza 460 MWe, carried out on a scale model built in a scale of 1/20 while preserving the full geometrical similarity. To reflect the macroscopic pattern of flow in the boiler's combustion chamber, tests were carried out based on two dimensionless flow dynamic similarity criteria, while maintaining a constant Froude number value between the commercial and the scaled-down units. A mix of polydispersion solids with its fractional composition determined by scaling down the particle size distribution of the boiler's inert material was utilised for the tests using a special scaling function. The obtained results show very good agreement with the results of measurements taken on the Lagisza 460 MWe supercritical CFB boiler.
Źródło:: Chemical and Process Engineering; 2011, 32, 4; 245-253
0208-6425
2300-1925
Pojawia się w:: Chemical and Process Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 4.

Tytuł:: Experimental verification of the scaling laws for CFB boilers of different designs
Autorzy:: Mirek, P.
Klajny, M.
Powiązania:: https://bibliotekanauki.pl/articles/185381.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: fluidization
circulating fluidised bed
similarity
scaling
hydrodynamics
fluidyzacja
złoże fluidalne
hydrodynamika
Opis:: In the paper flow dynamic similarity criteria have been presented to reflect the macroscopic flow pattern in the combustion chamber of large-scale circulating fluidised bed boilers. The proposed scaling rules have been verified on two cold models of CFB boilers operating in Tauron Wytwarzanie S.A. - El. Lagisza division (scale factor 1/20) and Fortum Power and Heat Poland Sp. z o. o. Czestochowa division (scale factor 1/10) – working with the power of 966 MW th and 120 MW th, respectively. As follows from the results of measurements, regardless of CFB boiler’s geometry the use of a defined set of criterial numbers allows to obtain satisfactory agreement between the suspension density distributions registered in the CFB boilers and scaling models.
Źródło:: Chemical and Process Engineering; 2016, 37, 2; 281-291
0208-6425
2300-1925
Pojawia się w:: Chemical and Process Engineering
Dostawca treści:: Biblioteka Nauki

Artykuł

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