Heat Transfer Enhancement and Flow Structure in Heat Exchanger Tube By Using In-Line And Staggered Discrete Ribs Arrangements
Ibrahim, E., Essa, M., Ibrahim, M., El-Sayed, M. (2019). Heat Transfer Enhancement and Flow Structure in Heat Exchanger Tube By Using In-Line And Staggered Discrete Ribs Arrangements. EKB Journal Management System, 39(1), 79-85. doi: 10.21608/erjsh.2019.406926
Emad Z. Ibrahim; Mohamed A. Essa; Mostafa M. Ibrahim; Mohamed N. El-Sayed. "Heat Transfer Enhancement and Flow Structure in Heat Exchanger Tube By Using In-Line And Staggered Discrete Ribs Arrangements". EKB Journal Management System, 39, 1, 2019, 79-85. doi: 10.21608/erjsh.2019.406926
Ibrahim, E., Essa, M., Ibrahim, M., El-Sayed, M. (2019). 'Heat Transfer Enhancement and Flow Structure in Heat Exchanger Tube By Using In-Line And Staggered Discrete Ribs Arrangements', EKB Journal Management System, 39(1), pp. 79-85. doi: 10.21608/erjsh.2019.406926
Ibrahim, E., Essa, M., Ibrahim, M., El-Sayed, M. Heat Transfer Enhancement and Flow Structure in Heat Exchanger Tube By Using In-Line And Staggered Discrete Ribs Arrangements. EKB Journal Management System, 2019; 39(1): 79-85. doi: 10.21608/erjsh.2019.406926

Heat Transfer Enhancement and Flow Structure in Heat Exchanger Tube By Using In-Line And Staggered Discrete Ribs Arrangements

Engineering Research Journal (Shoubra)
Volume 39, Issue 1, January 2019, Page 79-85  XML PDF (1.17 MB)
Document Type: Research articles
DOI: 10.21608/erjsh.2019.406926
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Authors
Emad Z. Ibrahim; Mohamed A. Essa; Mostafa M. Ibrahim; Mohamed N. El-Sayed
Mechanical Power Engineering Department, Faculty of Engineering, Zagazig University, Zagazig, Egypt
Abstract
In the present study, a numerical study is performed to one plain and six circular tubes with discrete ribs in two arrangements; in-line and staggered. Air is used as a working fluid at3,600  Re 16,525. The number of ribs is changed from 4 to 12 to study its effect on heat transfer rate (HTR) and pressure drop (ΔP). PEC is performed to estimate the thermal hydraulic efficiency (THE) for the all test tubes. The flow phenomena and temperature contours are shown to illustrate the temperature distribution and vortices.
Keywords
Ribs; Heat transfer enhancement; Vortices; CFD
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