Pulsed fluid-bed system with relocated gas stream and modified pulsation

• Autorzy: Gawrzyński Z. , Rychlik M.

Warianty tytułu

PL

Układ pulsofluidalny z przemieszczanym strumieniem gazu z modyfikowaną pulsacją

• Języki publikacji: EN

Abstrakty

EN

Experimental investigation has shown that modified pulsations (MP) affect bed structure. This enables one to combine the profitable properties with a classical pulsed fluid bed (PFB) and of a fluid bed system. In order to classify the MP system, the gas distributor factor ([dzeta R]) was introduced. Experiments for various [dzeta R] for various bed structures were carried out. In the range of 0 < [dzeta R] < 1, two characteristic areas were found. In the first one, for 0 < [dzeta R] < 0.3 and h[0] = 100 mm, there is a new kind of system with oscillating particles of a solid phase and greater gas consumption when compared with the classical PFB. In the second area for gas stream distribution factor ranging from 0.3 to 1, oscillations in the bed were not observed. In this range of [dzeta R] intensive mixing of particles in the bed was found. The best mixing of particles in the bed was obtained for 0.3 [mniejszy rowny] [dzeta R] [mniejszy-równy] 0.43. This kind of system was called "a pseudo-fluid bed". The results confirm that the new system with modified pulsation may be recommended for drying materials in constant rate period.

PL

Badania eksperymentalne układu pulsofluidalnego ze zmodyfikowaną pulsacją dowodzą, że modyfikacja pulsacji wpływa na jednorodność złoża pulsofluidalnego. Łącząc korzystne cechy układu pulsofluidalnego i układu fluidalnego, jest zalecana przy suszeniu materiałów charakteryzujących się i okresem suszenia.

Słowa kluczowe

EN

gas stream; gases; pulsation; pulsed fluid-bed system

PL

gazy; pulsacja; strumień gazu; układ pulsofluidalny

• Wydawca: Komitet Inżynierii Chemicznej i Procesowej Polskiej Akademii Nauk
• Czasopismo: Inżynieria Chemiczna i Procesowa
• Rocznik: 2002
• Tom: T. 23, z. 4
• Strony: 535--547
• Opis fizyczny: Bibliogr. 15 poz., rys.

Twórcy

autor

Gawrzyński Z.

• Department of Apparatus and Chemical Engineering, Wrocław University of Economics, ul. Komandorska 118/120, 53-345 Wrocław

autor

Rychlik M.

• Department of Apparatus and Chemical Engineering, Wrocław University of Economics, ul. Komandorska 118/120, 53-345 Wrocław

Bibliografia

• [1] GAWRZYŃSKI Z., RYCHUK M., 29th International Conference of SSCHE 2002, 27-31 May 2002, Tatranske Matliare, Slovakia.
• [2] GAWRZYŃSKI Z., GLASER R., Drying in pulsed fluid bed with relocated gas stream and modified pulsation, Drying Technology, 14 (5), (1996), 1121.
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• [9] Patent PRL 103840, 1979.
• [10] Patent PRL 259445, 1990.
• [11] Patent USA 5918569, 1999.
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