LCLina Chouichi
Lina Chouichi
*This is an algorithmically generated author record based on publicly available information.
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Lina Chouichi has a total of 7 co-authors. Here are the top co-authors by number of shared publications:
- Abdessalam Otmani
Department of Process and Energy Engineering, National Higher School of Technology and Engineering, Annaba 23005, Algeria
1 shared publication - Haithem Boumediri
Mechanical Department, Institute of Applied Sciences and Techniques, University of Constantine 1, Constantine 25017, Algeria
1 shared publication - Issam Bousba
Faculty of Sciences and Technology, University of Jijel, Jijel 18000, Algeria
1 shared publication - Mohamed Said Kahaleras
Laboratory of Energy Systems Technologies (LTSE), National Higher School of Technology and Engineering, Annaba 23005, Algeria
1 shared publication - Omar Reffas
Mechanical Department, Institute of Applied Sciences and Technologies, University of Constantine 1, Constantine 25017, Algeria
1 shared publication - Sabbah Ataya
Department of Mechanical Engineering, College of Engineering, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 11432, Saudi Arabia
1 shared publication
Latest Publications
- Open Access
Numerical Investigation of a New Segmented Annular Ring Tube for Heat Transfer Enhancement in Solar Water Heating Systems
This study presents a numerical investigation of a parabolic trough absorber tube equipped with a novel Angularly Segmented Ring Turbulator (ASRT), designed to enhance heat transfer through periodic flow disturbance and improved wall–fluid interaction. The proposed ASRT geometry consists of segmented annular rings arranged along the tube length, characterized by two key parameters: the number of angular segments per ring (Nr = 4, 6, 8) and the angular spacing of each segment (α = 20° and 40°). Three dimensional simulations were performed using the finite volume method under turbulent flow conditions, with Reynolds numbers ranging from 3300 to 11,000. A non-uniform solar heat flux, obtained via Monte Carlo Ray Tracing (MCRT), was applied as a boundary condition at the outer wall to replicate realistic solar concentration. The results reveal that the ASRT significantly improves convective heat transfer, with the Nusselt number ratio reaching up to 3.7 for α = 20° and Nr = 8. This enhancement is accompanied by a moderate rise in the friction factor ratio , reaching approximately 7.5 at Re = 3300, indicating efficient turbulence promotion with acceptable hydraulic penalties. The Performance Evaluation Criterion (PEC) ranges from 1.7 to 1.9, confirming the superiority of ASRT over the smooth tube.Open AccessNumerical Investigation of a New Segmented Annular Ring Tube for Heat Transfer Enhancement in Solar Water Heating Systems
This study presents a numerical investigation of a parabolic trough absorber tube equipped with a novel Angularly Segmented Ring Turbulator (ASRT), designed to enhance heat transfer through periodic flow disturbance and improved wall–fluid interaction. The proposed ASRT geometry consists of segmented annular rings arranged along the tube length, characterized by two key parameters: the number of angular segments per ring (Nr = 4, 6, 8) and the angular spacing of each segment (α = 20° and 40°). Three dimensional simulations were performed using the finite volume method under turbulent flow conditions, with Reynolds numbers ranging from 3300 to 11,000. A non-uniform solar heat flux, obtained via Monte Carlo Ray Tracing (MCRT), was applied as a boundary condition at the outer wall to replicate realistic solar concentration. The results reveal that the ASRT significantly improves convective heat transfer, with the Nusselt number ratio reaching up to 3.7 for α = 20° and Nr = 8. This enhancement is accompanied by a moderate rise in the friction factor ratio , reaching approximately 7.5 at Re = 3300, indicating efficient turbulence promotion with acceptable hydraulic penalties. The Performance Evaluation Criterion (PEC) ranges from 1.7 to 1.9, confirming the superiority of ASRT over the smooth tube.