Contact

All Stories

  1. Boosting solar PV/T efficiency with innovative chain-configured semicircular fins: A high-performance cooling solution

    Article • Case Studies in Thermal Engineering, May 2026, Elsevier

    Dr khelifa A

  2. Comprehensive assessment of a hybrid PV/T system with V-shaped perforated fin-tube cooling: Thermal, economic, and environmental perspectives

    Article • International Communications in Heat and Mass Transfer, April 2026, Elsevier

    Dr khelifa A

  3. Thermal-fluid analysis of a dual-path water-based PV/T system enhanced by fishbone-inspired extended

    Article • International Communications in Heat and Mass Transfer, March 2026, Elsevier

    Dr khelifa A

  4. A numerical exploration of V-shaped fins in PVT systems: Water cooling efficiency and energy gains

    Article • Applied Thermal Engineering, March 2026, Elsevier

    Dr khelifa A

  5. Boosting PV/T system performance with hybrid ZnO–water nanofluid cooling and passive airflow: a practical insight into the role of nanoparticle concentration

    Article • Energy Conversion and Management, January 2026, Elsevier

    Dr khelifa A

  6. Experimental study of a new hybrid water solar collector

    Article • January 2026, American Institute of Physics

    Dr khelifa A

  7. Magneto hydrodynamic mixed convection of a hybrid nanofluid inside M-shape porous cavity having movable side walls and two triangular heat sources

    Article • Journal of Porous Media, January 2026, Begell House

    Dr khelifa A

  8. Physics-Informed Neural Network for Performance Prediction of a PV/T System Integrated with Zigzag Cooling Fins

    Article • January 2026, Elsevier

    Dr khelifa A

  9. Numerical Optimization of PV/T Systems Under High Solar Irradiance: Efficiency Gains Through Minimal Airflow Cooling

    Article • Heat Transfer, December 2025, Wiley

    Dr khelifa A

  10. Multi-metric performance analysis of a PV/T system with fin-enhanced double-pass solar water collector

    Article • International Communications in Heat and Mass Transfer, December 2025, Elsevier

    Dr khelifa A

  11. Towards efficient passive cooling in hybrid PV/T systems: The role of integrated free-spinning axial fans

    Article • International Communications in Heat and Mass Transfer, December 2025, Elsevier

    Dr khelifa A

  12. A novel PVT system integrated with semicircular fins: CFD-based analysis of heat dissipation and energy efficiency

    Article • Applied Thermal Engineering, November 2025, Elsevier

    Dr khelifa A

  13. Maximizing energy output in PVT systems with triangular-finned solar air collectors

    Article • Applied Thermal Engineering, November 2025, Elsevier

    Dr khelifa A

  14. Optimizing baffle plate inclination in PV cooling systems for maximum heat dissipation

    Article • Applied Thermal Engineering, November 2025, Elsevier

    Dr khelifa A

  15. Performance characteristics of optimized bi-fluid photovoltaic-thermal solar system: A comparative study of innovative cooling system made of different materials

    Article • Applied Thermal Engineering, November 2025, Elsevier

    Dr khelifa A

  16. Investigating the impact of trapezoidal fin length, thickness, and positions on the performance of photovoltaic panels with dual inlet air cooling

    Article • Applied Thermal Engineering, November 2025, Elsevier

    Dr khelifa A

  17. Enhancing PVT performance with triangular tubes: A numerical study on Bi-fluid cooling efficiency gains

    Article • Case Studies in Thermal Engineering, October 2025, Elsevier

    Dr khelifa A

  18. Parallel flow cooling in hybrid PV/T systems: A computational investigation of air and water integration

    Article • Thermal Science and Engineering Progress, September 2025, Elsevier

    Dr khelifa A

  19. Performance appraisal of a modified finned solar air collector thermally assisted by a smart-switchable cover for constant outlet hot air temperature: Numerical investigation

    Article • Energy Nexus, September 2025, Elsevier

    Dr khelifa A

  20. Enhancing air-based photovoltaic-thermal panel performance with a novel four-inlet air-cooling system featuring fins and a cooling chimney

    Article • Journal of Thermal Analysis and Calorimetry, August 2025, Springer Science + Business Media

    Dr khelifa A

  21. Optimal cooling evaluation of photovoltaic thermal (PVT) systems: Computational approach

    Article • Energy Sources Part A Recovery Utilization and Environmental Effects, August 2025, Taylor & Francis

    Dr khelifa A

  22. Enhancing PV/T Thermal Efficiency via Passive Air‐Gap Cooling With Stagnant Water Heat Sink

    Article • Heat Transfer, July 2025, Wiley

    Dr khelifa A

  23. Investigating the indoor thermal comfort in winter using a PV panel integrated with a solar collector

    Article • Journal of Renewable and Sustainable Energy, July 2025, American Institute of Physics

    Dr khelifa A

  24. A numerical approach to enhance the performance of double-pass solar collectors with finned photovoltaic/thermal integration

    Article • Applied Thermal Engineering, June 2025, Elsevier

    Dr khelifa A

  25. Investigating the Effect of Cooling Tower Height on PVT System Efficiency with a Four-Inlet Air Cooling: Energy and Exergy Analysis

    Article • International Journal of Refrigeration, May 2025, Elsevier

    Dr khelifa A

  26. Enhancing the Thermal Performance of Solar Air Heaters Using Heat Storage Medium: An Experimental Study With Energy, Exergy, and Economic Approach

    Article • Journal of Thermal Science and Engineering Applications, March 2025, ASME International

    Dr khelifa A

  27. Performance enhancement of PVT modules using bi-fluid (air/CuO–water-based nanofluid) and fins: energy and exergy analysis

    Article • Clean Technologies and Environmental Policy, March 2025, Springer Science + Business Media

    Dr khelifa A

  28. Optimal air cooling gap width at the top of the PVT: thermal and electrical efficiency analysis

    Article • Journal of Thermal Analysis and Calorimetry, February 2025, Springer Science + Business Media

    Dr khelifa A

  29. Boosting the efficiency of photovoltaic solar panels via reflector mirrors during the winter months in the Algerian desert areas

    Article • International Journal of Ambient Energy, February 2025, Taylor & Francis

    Dr khelifa A

  30. Feasibility and performance evaluation of solar photovoltaic systems in diverse climatic regions of Algeria: energy, exergy, environmental, and economic approaches

    Article • International Journal of Ambient Energy, February 2025, Taylor & Francis

    Dr khelifa A

  31. A numerical investigation on improving the thermal efficiency of PV panels through integration with solar water collectors

    Article • Solar Energy, February 2025, Elsevier

    Dr khelifa A

  32. Hybrid Nanofluids Mixed Convection inside a Partially Heated Square Enclosure with Driven Sidewalls

    Article • Frontiers in Heat and Mass Transfer, January 2025, Computers, Materials and Continua (Tech Science Press)

    Dr khelifa A, Professor Hasan Koten, professor Oronzio Manca

  33. Modeling of a Hybrid Thermal Photovoltaic Collector (PVT) Based on Thin Film Solar Cells Based on CIS

    Article • December 2024, Institute of Electrical & Electronics Engineers (IEEE)

    Dr khelifa A

  34. Performance improvement of photovoltaic/thermal collectors based on the optimized design of efficient innovative multiple-impinging slot jets

    Article • Solar Energy, November 2024, Elsevier

    Dr khelifa A

  35. The efficient strategy of operating the active cooling systems incorporated with photovoltaic panels for the three climatic regions: A case study

    Article • Energy Sources Part A Recovery Utilization and Environmental Effects, October 2024, Taylor & Francis

    Dr khelifa A

  36. The Effect of the Impinging Angle of Multi-Rectangular Air Jets on the Performance Improvement of Passive Solar Photovoltaic-thermal Systems

    Article • Arabian Journal for Science and Engineering, September 2024, Springer Science + Business Media

    Dr khelifa A

  37. Effect of absorber shape on energy, exergy efficiency and enviro‐economic analysis of solar air collector: An experimental study

    Article • Environmental Progress & Sustainable Energy, September 2024, Wiley

    Dr khelifa A

  38. Development and optimization of dual-objective PVT modules for a smart residential building using inclined fins

    Article • Journal of Building Engineering, September 2024, Elsevier

    Dr khelifa A

  39. Experimental and economic evaluation on the performance improvement of a solar photovoltaic thermal system with skeleton-shaped fins

    Article • Applied Thermal Engineering, July 2024, Elsevier

    Dr khelifa A

  40. Thermal and electrical analysis of the performance of a skeleton-shaped tubes via hybrid PVT cooling system

    Article • Applied Thermal Engineering, May 2024, Elsevier

    Dr khelifa A

  41. Optimal design and orientation of cooling technology for photovoltaic Plants: A comparative simulation study

    Article • Solar Energy, February 2024, Elsevier

    Dr khelifa A

  42. Numerical analysis and design of a novel solar photovoltaic thermal system using finned cooling channel structures embedded with air/TiO2–water nano bi-fluid

    Article • Solar Energy, February 2024, Elsevier

    Dr khelifa A

  43. Design and performance optimization of a novel zigzag channeled solar photovoltaic thermal system: Numerical investigation and parametric analysis

    Article • Journal of Cleaner Production, January 2024, Elsevier

    Dr khelifa A

  44. Conception and Optimization of Photovoltaic Thermal Collector- Parametric Study

    Article • December 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Dr khelifa A

  45. Experimental performance analysis of photovoltaic/thermal hybrid system cooled by forced ventilation

    Article • Environmental Progress & Sustainable Energy, December 2023, Wiley

    Dr khelifa A

  46. Numerical Investigation of Nanofluids Mixed Convection in a Lid-Driven Cavity with Two Heat Sources

    Article • Journal of Nanofluids, December 2023, American Scientific Publishers

    Dr khelifa A

  47. Experimental study on energy and exergy assessments of a new PV system with a concave cover for active cooling and self-cleaning

    Article • Renewable Energy Focus, December 2023, Elsevier

    Dr khelifa A

  48. Numerical analysis of the heat transfer and fluid flow of a novel water-based hybrid photovoltaic-thermal solar collector integrated with flax fibers as natural porous materials

    Article • Renewable Energy, November 2023, Elsevier

    Dr khelifa A

  49. 3D numerical analysis of a photovoltaic thermal using bi-fluid: Al2O3–water nanofluid at various concentrations

    Article • International Journal of Thermofluids, November 2023, Elsevier

    Dr khelifa A

  50. Etude de l’influence des paramètres externes et internes sur le capteur hybride photovoltaïque thermique (PVT)

    Article • Journal of Renewable Energies, October 2023, Centre de Developpement des Energie Renouvelables

    Dr khelifa A

  51. Energetic study of hybrid solar PV/T collectors

    Article • Journal of Renewable Energies, October 2023, Centre de Developpement des Energie Renouvelables

    Dr khelifa A

  52. Improvement of the photovoltaic panel cooling by natural air ventilation

    Article • Environmental Progress & Sustainable Energy, October 2023, Wiley

    Dr khelifa A

  53. Performance enhancement of photovoltaic solar collector using fins and bi-fluid: Thermal efficiency study

    Article • Solar Energy, October 2023, Elsevier

    Dr khelifa A

  54. New graphical interface for Sizing PV systems

    Article • Journal of Renewable Energies, September 2023, Centre de Developpement des Energie Renouvelables

    Dr khelifa A

  55. Thermal analysis on the performance of a finned hybrid bi-fluid PVT system

    Article • Thermal Science and Engineering Progress, September 2023, Elsevier

    Dr khelifa A

  56. Experimental investigation for enhancing PV module energy performance using phase change material

    Article • Environmental Science and Pollution Research, May 2023, Springer Science + Business Media

    Dr khelifa A

  57. Energy Management and Feasibility Analysis of a Grid-Connected Hybrid Wind/Fuel Cell System for Pumping station electrification

    Article • May 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Dr khelifa A

  58. Intelligential method optimization for improve heat transfer in solar hybrid collector

    Article • May 2023, Institute of Electrical & Electronics Engineers (IEEE)

    Dr khelifa A, professor Oronzio Manca

  59. Modeling of a hybrid thermal photovoltaic (PVT) collector based on thin film organic solar cells

    Article • Electric Power Systems Research, September 2022, Elsevier

    Dr khelifa A

  60. Modeling of a Hybrid Photovoltaic Thermal Collector Based on Thin Film Solar Cells in Three Dimensions

    Article • Applied Solar Energy, June 2022, Allerton Press

    Dr khelifa A

  61. An Economic Strategy for Energy Management of a Residential Grid-Connected PV-Battery System

    Article • May 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Dr khelifa A

  62. Supervision and Speed Vector Control of Photovoltaic/Single-Phase Induction Machine System

    Article • May 2022, Institute of Electrical & Electronics Engineers (IEEE)

    Dr khelifa A

  63. Numerical study of the hybrid photovoltaic thermal collector with ribs

    Article • October 2021, Institute of Electrical & Electronics Engineers (IEEE)

    Dr khelifa A

  64. A numerical Approach of Three Hybrid Systems Based on Photovoltaic /thermal (PV/T) Air Solar collector

    Article • October 2021, Institute of Electrical & Electronics Engineers (IEEE)

    Dr khelifa A

  65. Experimental energy improvement of a special design heat exchanger-based hybrid solar collector for a photovoltaic module square surface

    Article • Environmental Science and Pollution Research, June 2021, Springer Science + Business Media

    Dr khelifa A

  66. Energy performance improvement of a new hybrid PV/T Bi-fluid system using active cooling and self-cleaning: Experimental study

    Article • Applied Thermal Engineering, January 2021, Elsevier

    Dr khelifa A

  67. Design of a Cogeneration System based on Hybrid PVT Solar Collectors - Application for an Habitation in the South of Algeria

    Article • November 2019, Institute of Electrical & Electronics Engineers (IEEE)

    Dr khelifa A

  68. Optimisation of planer's tilts angles reflectors for solar hybrid photovoltaic thermal air collector

    Article • International Journal of Power and Energy Conversion, January 2019, Inderscience Publishers

    Dr khelifa A

  69. Optimisation of planer's tilts angles reflectors for solar hybrid photovoltaic thermal air collector

    Article • International Journal of Power and Energy Conversion, January 2019, Inderscience Publishers

    Dr khelifa A

  70. Theoretical Study and Experimental Validation of Energetic Performances of Photovoltaic/Thermal Air Collector

    Article • International Journal of Photoenergy, December 2018, Hindawi Publishing Corporation

    khaled Touafek, Dr khelifa A

  71. Improvement of Performances of Solar Photovoltaic/Thermal Air Collector in South Algeria

    Article • December 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Dr khelifa A

  72. Numerical Analysis of Baffles Effect on Thermal Storage Capacity Inside Hot Water Storage Tank

    Article • December 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Dr khelifa A

  73. Numerical investigation of the natural air-cooling of photovoltaic modules in a new concept of hybrid system PVT mounted in stairs form (S-PVT)

    Article • May 2018, Institute of Electrical & Electronics Engineers (IEEE)

    Dr khelifa A

  74. Theoretical and Experimental Analysis of the solar Collectors Performances

    Article • IET Renewable Power Generation, March 2018, the Institution of Engineering and Technology (the IET)

    Dr khelifa A, Baissi Mohamed Tahar, khaled Touafek

  75. Improvement of PVT air-cooling by the integration of a chimney tower (CT/PVT)

    Article • Applied Thermal Engineering, January 2018, Elsevier

    Dr khelifa A

  76. Integration of Reflectors to Improve Energy Production of Hybrid PVT Collectors

    Article • January 2018, Elsevier

    Dr khelifa A

  77. Improvement of Energy Efficiency of Solar Hybrid Water Collectors

    Article • December 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Dr khelifa A

  78. Numerical Analysis of Hybrid Collector PV/T

    Article • December 2017, Institute of Electrical & Electronics Engineers (IEEE)

    Dr khelifa A

  79. Investigation of a hybrid PVT air collector system

    Article • January 2017, American Institute of Physics

    Dr khelifa A

  80. Thermal performances of vertical hybrid PV/T air collector

    Article • The European Physical Journal Plus, November 2016, Springer Science + Business Media

    Dr khelifa A

  81. Optimization tilts angle of flat plate reflectors placed in left-right side of Hybrid Photovoltaic thermal collector

    Article • November 2016, Institute of Electrical & Electronics Engineers (IEEE)

    Dr khelifa A

  82. Modeling and detailed study of hybrid photovoltaic thermal (PV/T) solar collector

    Article • Solar Energy, October 2016, Elsevier

    Dr khelifa A

  83. Modelling of a hybrid photovoltaic thermal collector based on CdTe

    Article • Applied Solar Energy, January 2016, Allerton Press

    Dr khelifa A

  84. Analysis of a Hybrid Solar Collector Photovoltaic Thermal (PVT)

    Article • Energy Procedia, August 2015, Elsevier

    Dr khelifa A

  85. Model Validation of an Empirical Photovoltaic Thermal (PV/T) Collector

    Article • Energy Procedia, August 2015, Elsevier

    Dr khelifa A

  86. The Copper Indium Selenium (CuInSe2) thin Films Solar Cells for Hybrid Photovoltaic Thermal Collectors (PVT)

    Article • Energy Procedia, August 2015, Elsevier

    Dr khelifa A

  87. Conception and study of a galvanized tubes hybrid PV / T collector for building application

    Article • Journal of Thermal Engineering, May 2015, Journal of Thermal Engineering

    Dr khelifa A

  88. Approach for the modelling of hybrid photovoltaic–thermal solar collector

    Article • IET Renewable Power Generation, April 2015, the Institution of Engineering and Technology (the IET)

    Dr khelifa A

  89. Investigation of the electrical and thermal performance of a PV/T hybrid system

    Article • March 2015, Institute of Electrical & Electronics Engineers (IEEE)

    Dr khelifa A

  90. Hot water system based on the hybrid solar collector photovoltaic/thermal PVT

    Article • December 2014, Institute of Electrical & Electronics Engineers (IEEE)

    Dr khelifa A

  91. Optimization of angle of inclination of the hybrid photovoltaic-thermal solar collector using particle swarm optimization algorithm

    Article • Journal of Renewable and Sustainable Energy, September 2014, American Institute of Physics

    Dr khelifa A

  92. Theoretical and experimental study of sheet and tubes hybrid PVT collector

    Article • Energy Conversion and Management, April 2014, Elsevier

    Dr khelifa A

  93. Design of an Energy System Based on Photovoltaic Thermal Collectors in the South of Algeria

    Article • Journal of Renewable Energy, January 2014, Hindawi Publishing Corporation

    Dr khelifa A

  94. Experimental study on a new conception of hybrid PV/T collector

    Article • December 2013, Institute of Electrical & Electronics Engineers (IEEE)

    Dr khelifa A