Identification of constant and stable main transition velocity in bubble column reactors

• Autorzy: Nedeltchev Stoyan

Warianty tytułu

PL

Określenie stałej i stabilnej prędkości przejściowej w reaktorach barbotażowych

• Języki publikacji: EN

Abstrakty

EN

This work presents new results about the reliable identification of the main transition velocity U_trans-1 in different bubble columns (0.1 – 0.46 m in inner diameter) equipped with several perforated plate gas distributors. Two different gas-liquid systems (air-water and air-therminol LT) have been used. The most important finding in this work is that U_trans-1 (end of the homogeneous regime) occurs at 0.04 m·s-1 irrespective of the operating conditions studied. For the U_trans-1 identification, the following parameters have been used: Kolmogorov and reconstruction entropies, degree of randomness and information entropy.

PL

W pracy przedstawiono nowe wyniki dotyczące wiarygodnej identyfikacji głównej prędkości przejścia U_trans-1 w różnych kolumnach barbotażowych (o średnicy wewnętrznej 0,1 - 0,46 m) wyposażonych w kilka dystrybutorów gazu typu płyta perforowana. Zastosowano dwa różne układy gaz-ciecz (powietrzewoda i powietrze-therminol LT). Najważniejszym odkryciem w tej pracy jest to, że U_trans-1 (koniec reżimu przepływu homogenicznego) występuje dla prędkości 0,04 m·s-1 niezależnie od badanych warunków pracy. Do identyfikacji U_trans-1 wykorzystano następujące parametry: entropię Kołmogorowa, entropię rekonstrukcyjną, stopień losowości oraz entropię informacji.

Słowa kluczowe

EN

bubble columns; flow regime identification; main transition velocity; entropy analysis

PL

kolumny barbotażowe; identyfikacja reżimu przepływu; główna prędkość przejścia

• Wydawca: Instytut Inżynierii Chemicznej Polskiej Akademii Nauk
• Czasopismo: Prace Naukowe Instytutu Inżynierii Chemicznej Polskiej Akademii Nauk
• Rocznik: 2020
• Tom: nr 24
• Strony: 9--27
• Opis fizyczny: Bibliogr. 31 poz., rys., tab.

Twórcy

autor

Nedeltchev Stoyan

• Institute of Chemical Engineering, Polish Academy of Sciences, Bałtycka 5, 44-100 Gliwice, Poland

Bibliografia

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