Dr. Gehad Metwally | Sustainable Materials | Best Researcher Award

Dr. Gehad Metwally | Sustainable Materials | Best Researcher Award

Obour Higher Institute for Engineering and Technology | Egypt

Dr. Gehad Ahmed Metwally is a civil engineering researcher focused on developing environmentally friendly and sustainable construction solutions that reduce carbon dioxide emissions. His work explores the use of bacteria in concrete to create self-healing bio-concrete, investigates the behavior and mechanical properties of fresh and hardened concrete using various materials, and examines the incorporation of natural and waste materials to minimize cement usage for lower CO₂ emissions. He also studies geopolymer concrete using fly ash, ground-granulated slag, and metakaolin combined with fibres such as steel and glass to achieve more resilient built environments. In his research role, he is responsible for data collection, reviewing recent literature, planning research, designing experimental mixtures, and performing tests to achieve optimal results, in addition to contributing to academic supervision. He has teaching experience in multiple civil engineering subjects and is skilled in SAP2000, ETABS, SAFE, AutoCAD, quantity surveying, and ICDL. His research contributions have been recognized with an appreciation certificate from the Dean of the Faculty of Engineering for publications in Q1 and Q2 scientific journals.

Metwally, G. A. M., Elemam, W. E., Mahdy, M., & Ghannam, M. (2025). Metakaolin-based ultra-high-performance geopolymer concrete: Role of basalt, glass, granite, and marble waste powders. Innovative Infrastructure Solutions, 10(11), 527.

Metwally, G. A. M., Elemam, W. E., Mahdy, M., & Ghannam, M. (2025). A comprehensive review of metakaolin-based ultra-high-performance geopolymer concrete enhanced with waste material additives. Journal of Building Engineering, 103, 112019.

Metwally, G. A. M., Mahdy, M., & Abd El-Raheem, A. E.-R. H. (2020). Performance of bio concrete by using Bacillus pasteurii bacteria. Civil Engineering Journal, 6(8), 1443–1456.

Rahim Zahedi | Energy and Environment | Best Researcher Award

Assist. Prof. Dr. Rahim Zahedi | Energy and Environment | Best Researcher Award

University of Tehran | Iran

Author Profiles

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Early Academic Pursuits

Rahim Zahedi’s academic journey reflects a consistent pursuit of excellence in the field of energy systems. He began his studies with a BSc in Mechanical Engineering at the Iran University of Science and Technology, where he laid a strong foundation in engineering principles. He continued his education at the same university, completing his MSc in Energy Systems Engineering, where he ranked among the top 10% of students. In 2020, he achieved a remarkable distinction by securing the first rank nationwide in the Energy Systems Engineering PhD entrance examination among 250 MSc competitors, an achievement that highlighted his academic brilliance. He pursued his PhD at the University of Tehran, where he again ranked first among his peers, solidifying his academic reputation.

Professional Endeavors

Currently, Rahim Zahedi serves as an Assistant Professor in the Department of Energy Governance at the University of Tehran, Iran. His professional career is rooted in academia, where he combines teaching with extensive research activities in energy and environmental sciences. Alongside his academic responsibilities, he has actively engaged in industrial collaborations, receiving first-rank awards for the best industrial plan in national oil and gas events, and recognition at innovation challenges such as “We Can” and “Retechs”.

Contributions and Research Focus

Rahim’s research focuses on energy modeling, Building Energy Modeling (BEM), and Life Cycle Assessment (LCA), contributing to the global transition towards sustainable energy systems. With more than 120 ISI-indexed publications, his scholarly output demonstrates both depth and breadth in addressing energy and environmental challenges. His work in energy modeling has been particularly impactful, with one of his articles being recognized as the most cited article in the journal Energy Science & Engineering (Wiley) from 2021 to 2024. His doctoral thesis was also awarded as the best thesis in energy management in Iran, further underlining his academic influence.

Impact and Influence

Rahim’s contributions extend beyond academic circles, influencing both industrial innovation and national energy policy. His placement in the top 2% of scientists worldwide (Stanford University, 2023–present) attests to the global recognition of his research impact. Awards such as the 2023 JTACC-V4 Young Scientist Award in Hungary, the National Renewable Energy Award, and the 2024 Alborz Prize (Iranian Nobel Prize) mark him as one of the most influential young scientists in energy and thermal sciences. Additionally, his role as Iran’s representative at the 10th BRICS Young Scientists Summit in Russia and chairing specialized sessions demonstrate his influence on the international stage.

Academic Citations and Recognitions

Rahim Zahedi’s work has been widely cited, reflecting the relevance and applicability of his research in addressing pressing global energy and environmental challenges. His recognition as the author of the most cited article in Energy Science & Engineering for three consecutive years underscores his leadership in advancing energy research. His research continues to inspire young scholars and provide pathways for sustainable energy solutions worldwide.

Legacy and Future Contributions

Rahim’s legacy lies in his pioneering contributions to energy modeling and sustainability-focused research, which have set benchmarks for both academic and industrial applications. With a commitment to advancing the fields of BEM and LCA, he is expected to further influence energy governance and sustainable development in Iran and globally. His consistent recognition as one of the top scientists of his generation positions him to make transformative contributions in the coming decades, particularly in renewable energy systems, environmental impact assessment, and integrated energy planning.

Conclusion

In summary, Dr. Rahim Zahedi exemplifies the role of a modern scientist whose work bridges academic research, industrial application, and policy influence. From his early academic achievements to his current recognition as one of the world’s leading young scientists in energy and environment, his career demonstrates a trajectory of excellence, innovation, and societal impact. His contributions not only elevate the scientific community of Iran but also reinforce the global pursuit of sustainable energy solutions.

Notable Publications

"Enhancing power, water and biofuel multigeneration system through developed biomass-driven hybrid process with energy, exergy, economic and environmental (4E) analysis"

  • Authors: T. Kermani, M. Imandoust, A. Montazeri, S. Ayoubi, R. Zahedi
  • Journal: Renewable Energy
  • Year: 2025

"Multi-objective optimization of hybrid solar-wind MSF-RO cogeneration desalination systems using NSGA-II to enhancing energy efficiency, cost reduction and sustainability"

  • Authors: M Imandoust, T Kermani, R Zahedi, A Aslani, M Qanbari,
  • Journal:
  • Year: 2025

"Technical and economic analysis of hydrogen production from pre combustion carbon capture by Rectisol process in combined cycle power plant"

  • Authors: M Tarhani, H Yousefi, R Zahedi
  • Journal: Separation and Purification Technology
  • Year: 2025

"Practical and numerical analysis of solarassisted anaerobic digestion system for cold regions"

  • Authors: Y Noorollahi, L Niazi, R Zahedi
  • Journal: Case Studies in Chemical and Environmental Engineering,
  • Year: 2025

"Assessing urban development indicators for environmental sustainability"

  • Authors: S.H Shamaee, H Yousefi, R Zahedi,
  • Journal: Discover Sustainability
  • Year: 2024