Mahmoud Ahmed

Professor
mahmoud.ahmed@ejust.edu.eg

Personal Info

Egypt-Japan University of Science and Technology, Energy Resources Engineering Department, P.O. Box 179, New Borg El-Arab City, Alexandria, Egypt

B9-F-2-10

Energy Resources Engineering

Mahmoud Ahmed is currently a professor in Energy Resources Engineering at Egypt-Japan University of Science and Technology (E-JUST), Alexandria. Prior to E-JUST, he was a Professor of Mechanical Engineering at Assiut University, where he also received his BS (1983) and MS (1987) degrees in Mechanical Engineering. He finished his PhD degree (1994) from Mississippi state University, USA, where he attained an outstanding record in computational fluid dynamics. Ahmed served as a visiting professor in several universities for research and teaching including Osaka University, Japan (2015), University of Toronto, Canada (2005-2008), Concordia University, Canada (2002-2003), and Drexel University, USA (1994-1995). Ahmed’s current research interests focus on the following tracks:1- thermal management of concentrator photovoltaic systems using different techniques, 2- Modeling of transport phenomena in fuel cells, solar hydrogen production, solar desalination, and wind energy systems, 3- Multiphase flow, liquid atomization and spray systems, 4- multiscale computations (continuum-meso), molecular dynamic simulation, and parallel computing with particular emphasis on hemodynamics. Ahmed enjoys teaching, working on the state-of-the-art research, and is currently a member in the editorial board of International Journal of Energy Research.

Impacted Journal

J-61. Meshack Hawi, Hidenori Kosaka, Susumu Sato, Tsuyoshi Nagasawa, Ahmed Elwardany, Mahmoud Ahmed, “Effect of injection pressure and ambient density on spray characteristics of diesel and biodiesel surrogate fuels”, Fuel, Vol. 254 (2019),1115674, doi.org/10.1016/j.fuel.2019.115674

J-60. A Mahmoud, H Fath, S. Ookawara, M Ahmed, “Influence of partial solar energy storage and solar concentration ratio on the productivity of integrated solar still/humidification-dehumidification desalination systems” Desalination, Vol. 467(2019), 29-42. doi.org/10.1016/j.desal.2019.04.033.

J-59. Ahmed Abdo, Shinichi Ookawara, Mahmoud Ahmed, “Performance evaluation of a new design of concentrator photovoltaic and solar thermoelectric generator hybrid system”, Energy conversion and Management, Vol. 195 (2019), 1382-1401. doi.org/10.1016/j.enconman.2019.04.093

J-58. Mahmoud Amer, Mohamed Nour, Mahmoud Ahmed, Shinichi Ookawara, Sameh Nada,Ahmed Elwardany, “The effect of microwave drying pretreatment on dry torrefaction of agricultural biomasses”, Bioresource Technology, Vol. 286 (2019), 121400. doi/10.1016/j.biortech.2019.121400

J-57. Mohamed Emam, Shinichi Ookawara, Mahmoud Ahmed, “Thermal management of electronic devices and concentrator photovoltaic systems using phase change material heat sinks: Experimental investigations”, Renewable Energy 141(2019) 322-339. doi.org/10.1016/j.renene.2019.03.151

J-56. Ramy Rabie, Mohamed Emam, Shinichi Ookawara, Mahmoud Ahmed, “Thermal management of concentrator photovoltaic systems using new configurations of phase change material heat sinks”, Solar Energy 183 (2019) 632–652. doi: 10.1016/j.solener.2019.03.061.

J-55. Meshack Hawi, Ahmed Elwardany, Shinichi Ookawara, Mahmoud Ahmed, “Effect of compression ratio on performance, combustion and emissions characteristics of compression ignition engine fueled with jojoba methyl ester” Renewable Energy 41(2019) 632-645. doi.org/10.1016/j.renene.2019.04.041

J-54. Ali Radwan, Shinichi Ookawara, Mahmoud Ahmed, “Thermal management of Concentrator Photovoltaic systems Using Two-Phase Flow Boiling in Double-Layer Microchannel Heat Sinks”, Applied Energy 241 (2019): 404-419. doi.org/10.1016/j.apenergy.2019.03.017.

J-53. Meshack Hawi, Ahmed Elwardany, Mohamed Ismail, Mahmoud Ahmed, “Experimental Investigation on Performance of a Compression Ignition Engine Fueled with Waste Cooking Oil Biodiesel–Diesel Blend Enhanced with Iron-Doped Cerium Oxide Nanoparticles” Energies 2019, 12(5), 798. doi/10.3390/en12050798

J-52. F. Njoka, S. Mori, S. Ookawara, and M. Ahmed, “Effects of Photo-generated Gas Bubbles on the Performance of Tandem Photoelectrochemical Reactors for Hydrogen Production”, International Journal of Hydrogen Energy, Vol. 44 (21): 10286- 10300, 2019. doi.org/10.1016/j.ijhydene.2019.02.194.

J-51. Ali Qureshy, Mahmoud Ahmed, and Ibrahim Dincer, “Performance assessment study of photoelectrochemical water splitting reactor design for hydrogen production”, International Journal of Hydrogen Energy, Vol. 44 (18): 9237- 9247, 2019.doi.org/10.1016/j.ijhydene.2019.01.280.

J-50. Amr S. Zalhaf, Mazen Abdel-Salam, Diaa-Eldin A. Mansour, Shinichi Ookawara, Mahmoud Ahmed,“Assessment of wind turbine transient over voltages when struck by lightning: experimental and analytical study” IET Renewable Power Generation, 2019, Vol. 13 (8): 1360-1368. doi.org/10.1049/iet-rpg.2018.5442

J-49. Amr. S. Zalhaf, Mazen Abdel-Salam, and Mahmoud Ahmed, “An Active Common- Mode Voltage Canceler for PWM Converters in Wind-Turbine Doubly-Fed Induction Generators”, Energies 2019, 12(4), 691.doi.org/10.3390/en12040691.

J-48. Mahmoud Ahmed, and Ibrahim Dincer. “A review on photoelectrochemical hydrogen production systems: Challenges and future directions”, International Journal of Hydrogen Energy, Vol. 44, No. 5, 2474-2507, 2019. doi.org/10.1016/j.ijhydene.2018.12.037.

J-47. F.B.Baz, Shinichi Ookawara, Mahmoud Ahmed, “Enhancing under-rib mass transport in proton exchange membrane fuel cells using new serpentine flow field designs”, International Journal of Hydrogen Energy, 2018. doi.org/10.1016/j.ijhydene.2018.11.147.

J-46. Radwan M.El-Zoheiry, Shinsuke Mori, Mahmoud Ahmed, “Using multi-path spiral flow fields to enhance under-rib mass transport in direct methanol fuel cells”, International Journal of Hydrogen Energy, 2018. doi.org/10.1016/j.ijhydene.2018.11.146.

J-45. Ismaila Zarma, M. Ahmed, S. Ookawara,“Enhancing the performance of concentrator photovoltaic systems using Nanoparticle-phase change material heat sinks”. Energy Conversion and Management. 179(2019):229-242. doi.org/10.1016/j.enconman.2018.10.055.

J-44. Saied, M., K. Ahmed, M. Ahmed, M. Nemat-Alla, and M. El-Sebaie, “Performance Study of Solid Oxide Fuel Cell with Various Flow Field Designs: Numerical Study” International Journal of Hydrogen Energy, Vol. 43, no. 45, 20931-20946, 2018. doi.org/10.1016/j.ijhydene.2018.09.034.

J-43. M. Emam, M. Ahmed, “Performance analysis of a new concentrator photovoltaic system integrated with phase change material and water jacket”. Solar Energy 173 (2018) 1158– 1172. doi.org/10.1016/ j. solener.2018.08.069.

J-42. A. Radwan, M. Ahmed, “Thermal management of concentrator photovoltaic systems using microchannel heat sink with nanofluids”. Solar Energy 171 (2018) 229–246. doi.org/10.1016/j.solener. 2018.06.083.

J-41. A. Radwan, S. Ookawara, S. Mori, M. Ahmed, “Uniform cooling for concentrator photovoltaic cells and electronic chips by forced convective boiling in 3D-printed monolithic double layer microchannel heat sink”, Energy Conversion and Management 166 (2018) 356–371.doi.org/10.1016/j.enconman.2018.04.037

J-40. M. El-Dosoky, M. Ahmed, and N. Ashgriz “Numerical simulation of condensate removal from gas channels of PEM fuel cells using corrugated walls." Int. J. Energy Res. 2018; 42:1664–1676. doi.org/10.1002/er.3962.

J-39. Aly M. A. Soliman, Hamdy Hassan, Mahmoud Ahmed, Shinichi Ookawara, “A 3d model of the effect of using heat spreader on the performance of photovoltaic panel (PV)”, Mathematics and Computers in Simulation, 2018. doi.org/10.1016/j.matcom.2018.05.011

J-38. Mahmoud A, Fath H, Ahmed M. “Enhancing the performance of a solar driven Hybrid solar still/humidification-dehumidification desalination system integrated with solar concentrator and photovoltaic panels”. Desalination. 430(2018):165-79. doi.org/10.1016/j.desal.2017.12.052.

J-37. Emam M, Ahmed M. “Cooling concentrator photovoltaic systems using various configurations of phase-change material heat sinks”. Energy Conversion and Management. 158(2018):298-314. doi.org/10.1016/j. enconman. 2017.12.077

J-36. Francis Njoka, Shinichi Ookawara, and Mahmoud Ahmed. “Influence of design and operating conditions on the performance of tandem photoelectrochemical reactors” International Journal of Hydrogen Energy,2017, Vol. 43, no. 3, 1285-1302. doi.org/10.1016/j.ijhydene.2017.11.168.

J-35. Radwan, Ali, and Mahmoud Ahmed. "The influence of microchannel heat sink configurations on the performance of low concentrator photovoltaic systems." Applied Energy 206 (2017): 594-611. doi.org/10.1016/j. apenergy. 2017.08.202.

J-34. Mahmoud Ahmed, and Ali Radwan. "Performance evaluation of new modified low-concentrator polycrystalline silicon photovoltaic/thermal systems." Energy Conversion and Management 149 (2017): 593-607. doi.org/10.1016/j. enconman.2017.07.057.

J-33. Saied, M., K. Ahmed, M. Ahmed, M. Nemat-Alla, and M. El-Sebaie. "Investigations of solid oxide fuel cells with functionally graded electrodes for high performance and safe thermal stress." International Journal of Hydrogen Energy, Vol. 42, no.24,15887-15902 (2017). doi.org/10.1016/j.ijhydene.2017.05.071

J-32. Emam, M., Shinichi Ookawara, and Mahmoud Ahmed. "Performance study and analysis of an inclined concentrated photovoltaic-phase change material system." Solar Energy 150 (2017): 229-245. doi.org/10.1016/j.solener.2017.04.050.

J-31. El-Zoheiry, Radwan M., Shinichi Ookawara, and Mahmoud Ahmed. "Efficient fuel utilization by enhancing the under-rib mass transport using new serpentine flow field designs of direct methanol fuel cells" Energy Conversion and Management, 144(2017):88-103.doi.org/10.1016/j.enconman.2017.04.041.

J-30. Ahmed, H. A., I. M. Ismail, Wael F. Saleh, and M. Ahmed. "Experimental investigation of humidification-dehumidification desalination system with corrugated packing in the humidifier." Desalination 410 (2017):19-29. doi.org/10.1016/j.desal.2017.01.036

J-29. Radwan, Ali, Shinichi Ookawara, and Mahmoud Ahmed. "Analysis and simulation of concentrating photovoltaic systems with a microchannel heat sink." Solar Energy 136 (2016):35-48. doi.org/10.1016/j. solener.2016.06.070.

J-28. Radwan, Ali, Mahmoud Ahmed, and Shinichi Ookawara. "Performance enhancement of concentrated photovoltaic systems using a microchannel heat sink with nanofluids." Energy Conversion and Management 119 (2016): 289-303. doi.org/10.1016/j.enconman.2016.04.045.

J-27. Qureshy, Ali M., Mahmoud Ahmed, and Ibrahim Dincer. "Simulation of transport phenomena in a photo-electrochemical reactor for solar hydrogen production." International Journal of Hydrogen Energy 41, no.19 (2016): 8020-8031.doi.org/10.1016/j.ijhydene.2015.12.218

J-26. Ahmed, M., and Eslamian M., Numerical Simulation of Natural Convection of a Nanofluid in an Inclined Heated Enclosure Using Two-Phase Lattice Boltzmann Method: Accurate Effects of Thermophoresis and Brownian Forces. Nanoscale Res Lett. 2015,10(1):1006. doi: 10.1186/s11671-015-1006-0.

J-25. Mahmoud Ahmed and Morteza Eslamian. "Laminar forced convection of a nanofluid in a microchannel: effect of flow inertia and external forces on heat transfer and fluid flow characteristics." Applied Thermal Engineering 78(2015):326-338.doi.org/10.1016/j.applthermaleng. 2014.12.069.

J-24. Eslamian, M., M. Ahmed, M. F. El-Dosoky, and M. Z. Saghir. "Effect of thermophoresis on natural convection in a Rayleigh–Benard cell filled with a nanofluid." International Journal of Heat and Mass Transfer 81 (2015): 142-156. doi: 10.1016/j.ijheatmasstransfer.2014.10.001.

J-23. Ahmed, Mahmoud, and Morteza Eslamian. "Natural convection in a differentially-heated square enclosure filled with a nanofluid: Significance of the thermophoresis force and slip/drift velocity." International Communications in Heat and Mass Transfer 58(2014): 1-11. doi.org/10.1016/j. icheatmasstransfer. 2014.08.008.

J-22. Sayed, Khairy, Mazen Abdel-Salam, Adel Ahmed, and Mahmoud Ahmed. "A ripple current minimization based single phase PWM inverter." International Journal of Power Electronics, vol. 6, no. 3 (2014): 201-223. doi:10.1504/IJPELEC.2014.064643.

J-21. Mahmoud Ahmed, M. S. Youssef, Ahmed Hamza, and H. Ali. "The onset of liquid entrainment from a stratified two-phase region through small branches." Acta Mechanica 225, no.11 (2014): 3023. doi:10.1007/s00707-014-109 - 0.

J-20. Mahmoud Ahmed, and M. S. Youssef. "Influence of spinning cup and disk atomizer configurations on droplet size and velocity characteristics." Chemical Engineering Science107(2014):149-157. doi: 10.1016/j.ces.2013.12. 004.

J-19. Ali, Ahmed Hamza H., Mahmoud Ahmed, and S. M. Abdel-Gaied. "Investigation of heat transfer and fluid flow in transitional regime inside a channel with staggered plates heated by radiation for PV/T system. Energy 59 (2013):255-264. doi:10.1016/j.energy.2013.06.047.

J-18. M. Ahmed., M. Youssef, and M. Abou-Al-Sood. "Two-dimensional modeling of viscous liquid jet breakup." Acta Mechanica 224, no. 3 (2013):499-512. doi: 10.1007/s00707-012-0766-1.

J-17. Al-Sood, Maher M. Abou Abou, Mahmoud Ahmed, and Yousef M. Abdel- Rahim. "Rapid thermodynamic simulation model for optimum performance of a four-stroke, direct-injection, and variable-compression-ratio diesel engine." International Journal of Energy and Environmental Engineering 3, no. 1 (2012): 1-13. doi: 10.1186/2251-6832-3-13.

J-16. Mahmoud Ahmed, and M. S. Youssef. "Characteristics of mean droplet size produced by spinning disk atomizers." Journal of Fluids Engineering 134, no. 7 (2012): 071103. doi: 10.1115/1.4006819.

J-15. K. Sayed, M. Abdel-Salam, A. Ahmed, and M. Ahmed. "New high voltage gain dual-boost DC-DC converter for photovoltaic power systems." Electric Power Components and Systems 40, no. 7 (2012): 711-728. doi: 10.1080/15325008.2012.658596

J-14. Mahmoud Ahmed, and Ibrahim Dincer. "A review on methanol crossover in direct methanol fuel cells: challenges and achievements." International Journal of Energy Research 35, no. 14 (2011): 1213-1228. doi:10.1002/er.1889.

J-13. Mahmoud Ahmed, and M. M. Abou-Al-Sood. "A One-Dimensional Model of Viscous Liquid Jets Breakup." Journal of Fluids Engineering 133, no. 11 (2011):114501. doi:10.1115/1.4004909.

J-12. Eslamian, Morteza, Mahmoud Ahmed, and Ahmed Hamza H. Ali. "A theoretical model for the formation of functional micro-and nano-particles from combustion of emulsion droplets." Drying Technology 29, no. 9 (2011): 1025-1036. doi: 10.1080/07373937.2010.548618.

J-11. Ali, A.H. H., M. Ahmed, and M. S. Youssef. "Characteristics of heat transfer and fluid flow in a channel with single-row plates array oblique to flow direction for photovoltaic/thermal system." Energy 35, no. 9 (2010): 3524-3534. doi: 10.1016/j.energy.2010.03.045.

J-10. M. Ahmed, N. Ashgriz, and H. N. Tran. "Break-up length and spreading angle of liquid sheets formed by splash plate nozzles" Journal of Fluids Engineering131(1), 2009: 011306. doi:10.1115/1.3026729.

J-9. M. Ahmed, N. Ashgriz, and H. N. Tran. "Influence of breakup regimes on the droplet size produced by splash-plate nozzles." AIAA journal 47, no. 3 (2009):516-522. doi: 10.2514/1.36081.

J-8. Eslamian, Morteza, Mahmoud Ahmed, and Nasser Ashgriz. "Modeling of solution droplet evaporation and particle evolution in droplet-to-particle spray methods." Drying Technology 27, no. 1 (2009):3-13.doi:10.1080/07373930802565665.

J-7. M. Ahmed. "Influence of wall inclination angles on the onset of gas entrainment during single and dual discharges from a reservoir." Journal of Fluids Engineering 130, no. 2 (2008): 021305. doi: 10.1115/1.2813124.

J-6. M. Ahmed, A. Amighi, N. Ashgriz, and H. N. Tran. "Characteristics of liquid sheets formed by splash plate nozzles." Experiments in Fluids 44, no.1(2008):125-136. doi:10.1007/s00348-007-0381-4

J-5. Eslamian, M., M. Ahmed, and N. Ashgriz. "Modelling of nanoparticle formation during spray pyrolysis." Nanotechnology 17, no. 6 (2006): 1674. doi: 10.1088/0957-4484/17/6/023.

J-4. Mahmoud Ahmed "Theoretical analysis of the onset of gas entrainment from a stratified two-phase region through two side-oriented branches mounted on a vertical wall." Journal of Fluids Engineering 128, no. 1 (2006): 131-141. doi: 10.1115/1.2140804.

J-3. Mahmoud Ahmed, Ibrahim Hassan, and Nabil Esmail. "Theoretical Analysis of the Onset of Gas Entrainment from a Stratified Region through a Single Side-Oriented Branch at Moderate Froude Numbers”, The Canadian Journal of Chemical Engineering 82, no.6 (2004): 1175-1182. Doi:10.1002/cjce.545082604.

J-2. M. . Ahmed, I. Hassan, and N. Esmail. "The onset of gas pull-through during dual discharge from a stratified two-phase region: Theoretical analysis" Physics of Fluids 16, no. 9 (2004):3385-3392. doi:10.1063/1.1771619.

J-1. M. Ahmed, I. Hassan, and N. Esmail. "Modeling of the onset of gas entrainment through a finite-side branch." Journal of Fluids Engineering 125, no. 5 (2003): 902-909. doi: 10.1115/1.1601256

International Conference

 

C-68. Amir Mahmoud, Masatoshi Kondo, Hassan Fath and Mahmoud Ahmed, “Experimental Study of a New Saline Water Distillation on Direct Contact Liquid Metal-Based Surface” The 6th International Conference on Power and Energy Systems Engineering (CPESE 2019), September 20-23, 2019, Okinawa, Japan.

C-67. Yusuf Bello Habib, Mahmoud Ahmed and Ahmed Elwardany. “A numerical model of rice husk combustion in bubbling fluidized bed reactor”, 11th Mediterranean Combustion symposium, June 16-20, 2019, Tenerife, Spain.

C-66. Mahmoud Omar, Mohamed Nour, Mahmoud Ahmed, Shinichi Ookawara, Sameh Nada, and Ahmed Elwardany ‘’the influence of microwave drying pretreatment on The dry torrefaction of agricultural biomasses”, 11th Mediterranean Combustion Symposium, June 16-20, 2019, Tenerife, Spain.

C-65. Ali Radwan, Mohamed Awad, Shinichi Ookawara, Mahmoud Ahmed, Performance of Concentrator photovoltaic system integrated with double layer heat sink, ASME, 17th International Conference on Nanochannels, Microchannels and Minichannels, June 23 – 26, 2019, Newfoundland, Canada

C-64. Ali Radwan, Mohamed Awad, Shinichi Ookawara, Mahmoud Ahmed, “Performance Analysis of Concentrator Photovoltaic/Microchannel Heat Sink System Using Nanofluid”, ASME, 17th International Conference on Nanochannels, Microchannels and Minichannels, June 23 – 26, 2019, Newfoundland, Canada.

C-63. A. Radwan, M. Hawi, M. Ahmed “Cooling of concentrator photovoltaic cells Using mini- scale jet impingement heat sinks, PowerEnergy2018-7569, ASME Power &Energy Conference, June 24-28, 2018, NC, USA.

C-62. M.Hawi, S. Ookawara, M. Ahmed “Modelling and simulation of homogeneous Charge compression ignition engine fueled by biodiesel”, PowerEnergy2018-7202, ASME Power & Energy Conference, June 24-28, 2018, NC, USA.

C-61. Ahmed Abdo, Mahmoud Ahmed, Hamdy Hassan, S. Ookawara, Efficient Operation of hybrid photovoltaic-thermoelectric system combined with Mico-channel heat sink, 16th International Conference on Clean Energy (ICCE-2018), May 9-11, 2018. Famagusta, North Cyprus.

C-60. A. S. Zalhaf, M. Ahmed and S. Ookawara, M. Abdel-Salam “A Simplified Model Of Wind Turbine for Lightning Transient Analysis as Influenced by Structure of Grounding System”, 5th International Conference on Electric Power and Energy Conversion Systems (EPECS’18), IEEE, April 23-25, 2018 Kitakyushu, Japan.

C-59. Ramie Rabie, Hamdy Hassan, Mahmoud Ahmed, Shinichi Ookawara, Enhancement of Concentrated photovoltaic cooling using Phase change material by adding a bulk over regular configuration, International Conference on Renewable Energy Generation and Applications, Feb. 26-28, 2018, Abu Dhabi, UAE.

C-58. Mohamed Emam, Ali Radwan, Mahmoud Ahmed” Analysis of a New Hybrid Water-phase Change Material Heat Sink for Low Concentrated Photovoltaic Systems”, ASME-International Mechanical Engineering Congress and Exposition (IMECE2017-70937), November 3-9, 2017, Tampa, Florida, USA.

C-57. Francis N. Njoka, Mahmoud Ahmed, Shinichi Ookawara., “Title: Design of a Novel Photo electrochemical Reactor for Hydrogen Production” Energy and Sustainability Conference, Sept 20-22, 2017. Seville, Spain.

C-56. Aly Soliman, Hamdy Hassan, Mahmoud Ahmed, Schinichi Ookawara, A 3D model of the effect of using heat spreader on the performance of photovoltaic panel (pv), 5th International conference on Emerging and Renewable Energy : Generation and Automation ICEREGA 2017, July 4-6, France.

 C-55. A.A. Hawwash, Hamdy Hassan, Mahmoud Ahmed, S. Ookawara and Khalid El feky, Long-term Thermal Energy Storage Using Thermochemical materials. 4th International Conference on Power and Energy Systems Engineering, CPESE 2017, 25-29, Berlin, Germany. [Published in Energy Procedia 141 (2017) 310-314]

 

C-54. Ramy Rabie, Hamdy Hassan, Schinichi Ookawara, Mahmoud Ahmed, performance    Enhancement of the concentrated photovoltaic using different phase change Materials. 4th International Conference on Power and Energy Systems Engineering CPESE 2017, 25-29, Berlin, Germany. [Published in Energy Procedia 141 (2017) 61-65]

C-53. Mohamed Samir, Hamdy Hassan, Mahmoud Ahmed, Schinichi Ookawara, Energy and exergy analysis of single slope passive solar still under Egyptian climate conditions. 4th International Conference on Power and Energy Systems Engineering, CPESE 2017, 25-29, Berlin, Germany. [Energy Procedia 141 (2017) 18-23]

 

C-52. Ismail Zarma, Hamdy Hassan, Mahmoud Ahmed, Schinichi Ookawara, “Investigation on Enhancement of Thermal Conductivity of Phase Change Material with Nanoparticles Addition for Thermal Energy Storage” 16th International Conference on Sustainable Energy Technologies (SET2017) Bologna, July 17-20, Italy.

 

C-51. Ali Radwan, Mohamed Emam, Radwan M. Elzoheiry, Mahmoud Ahmed, “An investigation of a novel structure polycrystalline silicon solar cell for concentrated solar power”, ASME 2017 11th International Conference on Energy Sustainability, PowerEnergy 2017-3388, June 26-30, 2017, Charlotte, North Carolina, USA.

C-50. Zoheiry R. M., Ahmed, M., Ookawara. “Performance Study of Bio-inspired Flow Field design for Direct Methanol Fuel Cells”, 6th International Conference on Fuel Cell & Hydrogen Technology (ICFCHT 2017), April 11-13, 2017, Malaysia.

C-49. Faisal Baz, Shinichi Ookawara, Mahmoud Ahmed, Influence of Parallel Flow Field Inclination Design on Water Management in PEMFCs, 6th International Conference on Fuel Cell & Hydrogen Technology (ICFCHT 2017), April 11-13, 2017, Malaysia.

C-48. Ali Radwan, Mahmoud Ahmed, Shinichi Ookawara: Performance Evaluation of concentrated Photovoltaic System Using a Microchannel Heat Sink. Proceedings of the ASME 2016, International Mechanical Engineering Congress and Exposition, IMECE2016-66724, November 11-17, 2016, Phoenix, Arizona, USA.

 

C-47.  Mohamed Emam, Mahmoud Ahmed, Shinichi Ookawara, 2016. Cooling of concentrated photovoltaic system using various configurations of phase-change material heat sink, Proceedings of the ASME 2016 International Mechanical Engineering Congress and Exposition, IMECE2016-67111, November 11-17, 2016, Phoenix, Arizona, USA.

C-46.  Ali Radwan, Mahmoud Ahmed, Shinichi Ookawara: Performance of Concentrated Photovoltaic Cells Using Various Microchannel Heat Sink Designs. Proceedings of the ASME 2016, 10th International Conference on Energy Sustainability, PowerEnergy2016-59411, June 26-30, Charlotte, North Carolina, USA.

C-45. Mohamed Emam, Mahmoud Ahmed, Shinichi Ookawara, 2016. Performance enhancement of concentrated photovoltaic system using phase-change material. Proceedings of the ASME 2016, 10th International Conference on Energy Sustainability, PowerEnergy2016-59641, June 26-30, Charlotte, North Carolina, USA.

C-44. Ali Radwan, Mahmoud Ahmed, Shinichi Ookawara, Mahmoud Bady: Investigation of Manifold Microchannel Cooling of Concentrated Photovoltaic System. Conference on Advances in Mechanical Engineering Istanbul 2016 – ICAME-2016, May 12-15,  Yildiz Technical University, Istanbul, Turkey.

C-43. Ali Radwan, Mahmoud Ahmed, and Shinichi Ookawara: Cooling of Concentrated Photovoltaic System Using Microchannel Heat Sink. 8th International Exergy, Energy and Environment Symposium (IEEES-8), 1-3 May, 2016, Antalya, Turkey.

C-42. Mohamed Emam, Mahmoud Ahmed, Shinichi Ookawara, Thermal regulation enhancement of Concentrated Photovoltaic systems using phase-change materials. Proceedings of the 8th International Exergy, Energy and Environment Symposium, 2016, Symposium (IEEES-16), 1-3 May, Antalya-Turkey.

C-41. Ali Radwan, Mahmoud Ahmed, Shinichi Ookawara, “Enhanced Performance of Concentrated Photovoltaic Using Nano fluid/Micro-Channel Heat Sink”. International Conference on Renewable Energy: Generation and Applications (ICREGA16), Feb. 2-5, 2016- Belfort, France.

C-40. Ahmed M. Diaa, Mohammed F. El-Dosoky, Mahmoud A. Ahmed, Omar E. Abdelhafez “Effect of a New Vortex Generator on the Performance of an Axial Compressor Cascade at Design and Off-Design Conditions” IMECE2015-52293, November 13–19, 2015, Houston, Texas, USA.

C-39. Ahmed M. Diaa, Mohammed F. El-Dosoky, Mahmoud A. Ahmed, Omar E. Abdel-Hafez, “ Boundary Layer Control of an Axial Compressor Cascade Using Nonconventional Vortex Generators”,  IMECE2015-52310, November 13–19, 2015, Houston, Texas, USA.IMECE2015-52310, November 13–19, 2015, Houston, Texas, USA.

C-38.  Ali Radwan, Mahmoud Ahmed, Shinichi Ookawara: Microchannel Cooling of Concentrated Photovoltaic Cells Using Nano-fluids. International Conference of Energy systems. 2015, Istanbul,Turkey.

C-37. A. Qureshy, M. Ahmed, A. Abdel-Rahman, I. Dincer., “Modeling of a photo- electrochemical reactor for hydrogen production” International Conference on Hydrogen Production (ICH2P 2015), May 3-6, 2015, Oshawa, Canada.

C-36. M.  Ismail, H.  Mahmoud, M.  Ahmed, I.  Dincer, “Influence of photoanode materials on the performance of photo- electrochemical reactors” International Conference on Hydrogen Production 2015 (ICH2P 2015), May 3-6, 2015, Oshawa, Canada.

C-35. Diaa, A, EL-Doseky, M, El-Anwar, O, Ahmed, M., “Secondary Flow Control on Axial Flow Compressor Cascade Using Vortex Generators” ASME-IMECE2014-37790, November 14-20, 2014-Montreal, Canada.

C-34. E. Barakat, M. Ahmed, K. Ahmed, A. Abdel-Rahman and A. Ali “Influence of Parallel Flow Field Design on the Performance of PEM Fuel Cells” International Conference and exhibition on  Clean  Energy-  ICCE  2013,  9-  11  Sept  2013, Ottawa, ON, Canada.

C-33. Abou Al-Sood, M. M., Abdel-Rahim, Y.M., Ahmed, M.,   'Rapid thermodynamic Simulation Model for Optimum Performance of a 4-stroke, Direct Injection, Variable Compression Ratio Diesel Engine’ HEFAT2012- July, 16–18, 2012, Malta.

C-32. Abou Al-Sood, M. M., Ahmed, M., ‘Numerical Investigation of Evaporating Bi- component Droplets in a Turbulent Environment’ HEFAT2012-July 16–18, 2012, Malta.

C-31. Sayed, K., Abdel-Salam, M., Ahmed, M., Ahmed, A. “Numerical simulation of thin-film Photovoltaic Solar Cells" ASME- IMECE 2011-62352, November 11-17, Denver, CO, USA.

C-30. Sayed, K., Abdel-Salam, M., Ahmed, A., Ahmed, M. “Electro-Thermal Modeling of Solar Photovoltaic Arrays" ASME- IMECE 2011-62541, November 11-17, Denver, CO, USA.

C-29. Abdel-Rahim, Y.M., Abou Al-Sood, M. M., Ahmed, M., “Modeling of laminar viscous flow in a semi-porous channel under uniform   magnetic field"ASME- IMECE 2011-62883, November 11- 17, Denver, CO, USA

C-28. M. Saad, M., Ahmed, M., Morcos, V. H. “Performance Analysis of a vacuum desalination system “ASME- IMECE 2011-62655, November 11-17, Denver, CO, USA.

C-27. Ahmed, K., Abdel-Rahman, A., Khairaldien, W., Ahmed, M. “Virtual Height Aided Solar Chimney: A New Design” ASME- IMECE 2011-65819, November 11-17, Denvor, Co, USA.

C-26. Abou Al-Sood, M. M., Ahmed, M., Abdel-Rahim, Y.M. “Optimum Compression Ratio Variation of a 4-Stroke, Direct Injection, Diesel Engine for   Optimum Performance" ASME- IMECE 2011-62156, November 11- 17, Denver, Co, USA.

C-25. Saad, M., Ahmed, M., Morcos, V. H. "Experimental and theoretical Studies Of a vacuum desalination system using engine waste heat" “ASME-IMECE 2010-41000, November 12-18, Vancouver, British Columbia, Canada.

C-24. Barakat, E; Abdel-Rahman, A; Ahmed, M; Ali, A., "An experimental Study of Operational Parameters on the Performance of PEMFCs" ASME- IMECE2010- 39080, November 12-18, IMECE, November 12-18, 2010, Vancouver, British Columbia, Canada.

C-23. Sayed, K; Abdel-Salam, M; Ahmed, M; Ahmed, A; “Modeling and Simulation of   Photovoltaic   Arrays"   ASME-   IMECE 2010-38969, November 12-18, Vancouver, British Columbia, Canada.

C-22. Ahmed, M; Ali, A., Dincer, I. " Methanol Crossover in Direct Methanol Fuel Cells for Portable Applications: Achievements and Challenges" ASME- IMECE 2010-38949, November 12-18, Vancouver, British Columbia, Canada.

C-21. Ali,  A.,  Ahmed,  M  "Study  of  Heat  Transfer  and  Fluid  Flow  in  Transitional Regime inside a Channel with Offset Plates Heated By Radiation for photovoltaic / Thermal Systems " ASME- IMECE 2010-37521, November 12-18, Vancouver, British Columbia, Canada.

C-20. Eslamian, M., Ahmed, M.," Modeling of Particle Formation via Emulsion Combustion Spray Method" ASME- IMECE 2010-38935, November 12-18, Vancouver, British Columbia, Canada.

C-19. Ahmed, M., Ali, A., “A New Criterion for the Onset of Liquid Entrainment from a Stratified Two-Phase Region” ASME Summer Heat Transfer Conference, July 19- 23, 2009, San Francisco, CA, USA.

C-18. Ali, A., Ahmed, M., “Performance of an absorber with Hydrophobic membrane contactor at aqueous solution-water vapor interface" ASME Summer Heat Transfer Conference, July 19-23, 2009, San Francisco, CA, USA

C-17. Ahmed, M., Ashgriz, N., and Tran, H. “Characterization of black Laquor Sprays From Splash Plate Nozzles“ TAPPI Conference, August 24-27, 2008, Portland, Oregon, USA.

C-16. Ahmed, M., Ashgriz, N., and Tran, H. “Characteristics of Liquid Sheets Formed By Splash Plate Nozzle” Annual Research Review Meeting on Increasing Energy and Chemical Recovery Efficiency in the Kraft  Process, November 6 - 8, 2007, Toronto, ON, Canada.

C-15. Ahmed, M., Ashgriz, N., and Tran, H. “A Fundamental Study of Black Liquor Sprays Formed by Splash Plate Nozzles” International Chemical Recovery Conference, May 29, 2007, Quebec City, Canada.

C-14. Ahmed, M., Ashgriz, N., and Tran, H. “Controlling of Droplet Size Produced by Splash Plate Nozzles” Annual Research Review Meeting on Increasing Energy and Chemical Recovery Efficiency in the Kraft Process, November 14 - 16, 2006, Toronto, ON, Canada.

C-13. Ahmed, M., Ashgriz, N., and Tran, H.. “Characteristics of Liquid Sheet sprays Formed by Splash Plate Nozzles” Annual Research Review Meeting on Increasing Energy and Chemical Recovery Efficiency in the Kraft Process, November 14-16, 2006, Toronto, ON, Canada.

C-12. Ahmed, M., Ashgriz, N., and Tran, H. “Atomization of Corn Syrup Using Splash Plate Nozzles “International Green Energy Conference- 2, 25-29 June, 2006- Oshawa, ON, Canada.

C-11. Ahmed, M., Ashgriz, N., and Tran, H.”   Effect of Viscosity on the Breakup Length of Liquid Sheets Formed by Splash Plate Nozzles”, ILASS-2006, May 23-26, Toronto, ON, Canada.

C-10. Ahmed, M., Ashgriz, N., and Tran, H.. “Scaling Parameters for the Break-up Length of Liquid Sheets Formed by Splash Plate Nozzles” Annual Research Review Meeting on Increasing Energy and Chemical Recovery Efficiency in the Kraft Process, November 8 - 10, 2005, Toronto, ON, Canada.

C-9. Eslamian, M., Ahmed, M., and Ashgriz, N. “Modeling Nano-Particle Formation in Spray Pyrolysis” 55th Conference of Canadian Society of Chemical Engineers, Toronto, October 2005, Canada.

C-8. Ahmed, M., K. Lenard, I. Hassan, and N. Esmail “Modeling of the onset of Gas Entrainment from a Stratified Two-Phase Region through Two Side Branches” SME/FED03 Fluid Engineering Conference, July 6-10, 2003, Honolulu, Hawaii, USA.

C-7. Ahmed, M., K. Lenard, I. Hassan, and N. Esmail “The Onset of Gas Entrainment from a Stratified Two-Phase Region through a Single Side Branch” Proceedings of IMECE 2002, ASME   International Mechanical Engineering Congress& Exposition, November 17-22, 2002 New Orleans, Louisiana, USA.

C-6. Ahmed, M., I. Hassan, and N. Esmail “Modeling of the Onset of Gas Entrainment through a Finite-Side Branch” Proceedings of 2002 ASME Fluids Engineering Division Summer Meeting, FEDSM2002-31242, July 14-18, 2002, Montreal, Quebec, Canada.

C-5. Ahmed, M. and Youssef, M.S. “Effect of Geometry of Rotating Disks and Cups on Spray Characteristics” ILASS, September 2-6, 2001, Zurich, Switzerland.

C-4. Ahmed, M., and Youssef, M.S. “Spray Characteristics of a Rotating Disk Atomizer” ILASS, September 2-6, 2001, Zurich, Switzerland.

C-3. Ahmed, M., and Youssef, M.S.  “A One-Dimensional Computational Model of Viscous Liquid Jet Break-Up” ILASS, July 5-7, 1999, Toulouse, France.

C-2. Ahmed, M. and Youssef, M.S. “A two-dimensional computational model of viscous liquid jet break-up, Part I:  Laminar flow” ILASS, July 5-7, 1999, Toulouse, France.

 C-1. Ahmed, M., and Smith, D. “Prediction of Hydraulic nozzle Deposit Patterns” Proceedings of 1994, ASAE, 94-1025, St. Joseph, MI, USA.

National Conference

testing conferences

Publications

Book Chapters:

B-C-2. Ali Radwan, Mohamed Emam, Mahmoud Ahmed. “Comparative study of active and passive cooling techniques for concentrated photovoltaic systems” Exergetic, Energetic and Environmental Dimensions” Elsevier Inc. (Editors: Ibrahim Dincer, C. Ozgur Colpan, and Onder Kizilkan), ISBN: 978-0-12-813734-5, 2018

B-C-1. Eslamian, M., Ahmed, M., and Ashgriz, N.,” Particle Production via Emulsion Combustion Spray Method “Handbook of Atomization and Sprays, Theory and Applications” Springer. (Editor: N. Ashgriz), ISBN: 978-1-4419-7263-7, 2011.