Effect of solids on liquid velocity distributions and power input in a jet-loop reactor

• Autorzy: Kmieć A. , Kowal P. , Szafran R. , Kmieć G. , Englart S.

Warianty tytułu

PL

Wpływ koncentracji ciała stałego na profile prędkości i zużycie mocy w reaktorze strumienicowo-pętlicowym

• Języki publikacji: EN

Abstrakty

EN

Experimental investigations of liquid velocity distributions and power input in a jet-loop reactor have been carried out on a semi-industrial scale. The effect of solids concentrations on the liquid velocity distributions and the power input in the reactor is determined. It was found that solids reduce liquid flow velocity along the draft tube by 30%. Profiles of liquid velocity are flattened due to the presence of solids but dependent on the particle size. This effect increases with the decrease of the particle diameter and with the increase of the liquid flow rate. Radial velocity profiles are described by Schlichtings correlation. Power input is found to increase slightly with the solids concentration.

PL

Przedstawiono wyniki badań rozkładu prędkości płynu oraz zużycia mocy wykonanych za pomocą reaktora strumienicowo-pętlicowego w skali półtechnicznej, w układzie trójfazowym gazcieczciało stałe. Zanalizowano wpływ koncentracji ciała stałego na rozkład profilu prędkości oraz zużycie mocy w reaktorze. Obecność ziaren ciała stałego powodowała ponad 30% zmniejszenie prędkości przepływu cieczy w rurze wznoszącej oraz spłaszczenie profili prędkości zależne od średnicy cząstek. Efekt ten zwiększał się wraz ze zmniejszeniem średnicy cząstek oraz wraz ze wzrostem prędkości przepływu płynu. Zużycie mocy wzrastało jedynie nieznacznie wraz ze wzrostem koncentracji ciała stałego. Promieniowe rozkłady prędkości opisano za pomocą korelacji Schlichtinga.

Słowa kluczowe

PL

prędkość przepływu płynu; reaktor strumieniowo-pętlicowy

• Wydawca: Komitet Inżynierii Chemicznej i Procesowej Polskiej Akademii Nauk
• Czasopismo: Inżynieria Chemiczna i Procesowa
• Rocznik: 2003
• Tom: T. 24, z. 1
• Strony: 33--45
• Opis fizyczny: Bibliogr. 47 poz.

Twórcy

autor

Kmieć A.

• Institute of Chemical Engineering and Heating Equipment, Wrocław University of Technology

autor

Kowal P.

• Institute of Chemical Engineering and Heating Equipment, Wrocław University of Technology

autor

Szafran R.

• Institute of Chemical Engineering and Heating Equipment, Wrocław University of Technology

autor

Kmieć G.

• Institute of Environment Protection Engineering, Wrocław University of Technology

autor

Englart S.

• Institute of Environment Protection Engineering, Wrocław University of Technology

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