Journals / Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi / 1998 / Cilt: 13 - Sayı: 1-2

Combined internal and external natural convection mass transfer at cylindrical electrodes

Silindirik elektrodlarda eşzamanlı iç ve dış doğal konveksiyonla kütle transferi

Pages
107–116
Publication Date
2022-10-18
DOI
—
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Results for combined internal and external surface active cylinders are correlated in the range 1.20 $10^9 < ( Sc Gr_m Costheta ) < 1.45$ $10^{12}$ by the equation: Sh = 0.368 $(Sc Gr_m Costheta )^{0.254}$.

📌 3 Key Takeaways

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Objective & Hypothesis:Natural convection mass transfer at combined internal and external surface active cylinder electrodes was studied by a electrochemical limiting current diffusion technique involving the cathodic deposition of copper from acidified copper sulphate solution.
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Key Findings & Data:Various electrolyte concentration (0.01, 0.05, 0.10, 0.15 and 0.20M), cylinder lenght (2.8, 5.3, 10.1 and 15.2cm), and position angle of cylinder (0° (horizontal),30° , 60° and 90° ( vertical)) were taken as parameters.
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Conclusion & Impact:Results for combined internal and external surface active cylinders are correlated in the range 1.20 $10^9 < ( Sc Gr_m Costheta ) < 1.45$ $10^{12}$ by the equation: Sh = 0.368 $(Sc Gr_m Costheta )^{0.254}$.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Natural convection mass transfer at combined internal and external surface active cylinder electrodes was studied by a electrochemical limiting current diffusion technique involving the cathodic deposition of copper from acidified copper sulphate solution. Various electrolyte concentration (0.01, 0.05, 0.10, 0.15 and 0.20M), cylinder lenght (2.8, 5.3, 10.1 and 15.2cm), and position angle of cylinder (0° (horizontal),30° , 60° and 90° ( vertical)) were taken as parameters. The mass transfer coefficient was found to increase with increasing electrolyte concentrations and position angle of cylinder, and decreased with increasing cylinder lenght. Results for combined internal and external surface active cylinders are correlated in the range 1.20 $10^9 < ( Sc Gr_m Costheta ) < 1.45$ $10^{12}$ by the equation: Sh = 0.368 $(Sc Gr_m Costheta )^{0.254}$.

Özet

Sınırlayıcı diffüzyon akım tekniği kullanılarak (bakırın katodik indirgenmesi) eş zamanlı iç ve dış doğal konveksiyon kütle transferi değişik pozisyonlu silindirik elektrodlarda çalışıldı. Doğal konveksiyon kütle transferi ölçümlerinde elektrolitik çözeltinin konsantrasyonu (0.01, 0.05, 0.10, 0,15 ve 0.20M), silindir uzunluğu (2.8,5.3, 10.1 ve 15.2cm), ve pozisyon açısı (0°(yatay), 30°, 60° and 90°(dikey)) parametre olarak seçildi. Kütle transfer katsayısı, elektrolit konsatrasyonu ve eğim açısı artıkça artmakta, elektrod uzunluğu ile azalmaktadır. İç ve dış silindirik elektrodlar için sonuçlar 1.20 $10^9 < ( Sc Gr_m Costheta ) < 1.45$ $10^{12}$ aralığında aşağıdaki şekilde korele edildi Sh = 0.368 $(Sc Gr_m Costheta )^{0.254}$.

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Cite This Article

KOBYA, İ., KOBYA, M., SARAÇ, H. (2022). Combined internal and external natural convection mass transfer at cylindrical electrodes. Gazi Üniversitesi Mühendislik Mimarlık Fakültesi Dergisi, Cilt: 13 - Sayı: 1-2, 107–116. https://ajindex.com/articles/524332

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