Chinedu Okere | Engineering | Best Researcher Award

Published on by Research Awards

Dr. Chinedu Okere | Engineering | Best Researcher Award 

University of Houston | United States

Dr. Chinedu (Junior) Okere is a dynamic early-career researcher whose interests span subsurface hydrogen generation, large-scale hydrogen storage in geological formations, experimental and numerical modelling of CO₂ capture, utilisation and storage (CCUS), methane leakage from orphaned wells, and drilling/fracturing fluid design and formation-damage mitigation in petroleum reservoirs. His professional trajectory has taken him from graduate research at the China University of Petroleum (Beijing) (M.Eng., 2022) to doctoral studies at the Texas Tech University (Ph.D., 2025) and onward to a post-doctoral appointment in the Department of Petroleum Engineering at the University of Houston (from mid-2025). In these roles he has supervised PhD students, managed a U.S. Department of Energy-funded CarbonSAFE project on CO₂ storage, and led the development of grant proposals, patents and peer-reviewed publications. According to his Google Scholar profile he has to date achieved 659 citations and an h-index of 15, with an i10-index of 19. His publication record includes a broad spectrum of articles (20+, depending on counting method) covering topics from “clean hydrogen generation from petroleum reservoirs” to fuzzy-ball fluid‐induced damage in tight reservoirs, reservoir suitability for hydrogen storage, and methane leakage from abandoned wells. Most recently, his first‐author papers (2024-2025) address techno-economic feasibility of in-situ hydrogen production from petroleum reservoirs, SARA-based experimental and numerical investigations of in-situ hydrogen generation, and comparative numerical studies for optimisation of hydrogen production and CCUS strategies. In recognition of his impact he has received numerous honours including the 2024 International Inventions Awards – Hydrogen Energy Best Researcher Award, and the Society of Petroleum Engineers Permian Basin Scholarship. With strong interdisciplinary credentials spanning petroleum engineering, energy systems, reservoir simulation, and hydrogen/CCUS technologies, Dr. Okere stands out as an emerging scholar bridging the conventional oil-&-gas domain with the clean/hydrogen energy transition. His h-index of 15 reflects a solid early‐career impact: it means he has at least 15 publications each cited at least 15 times. (The h-index concept was originally proposed by J. E. Hirsch as a simple measure of productivity and citation impact. Going forward, his strong publication momentum, growing citation base and leadership in grant/industry-adjacent projects suggest that he is well-positioned to further increase both his research output and influence in the hydrogen/CCUS engineering community.

Profiles: Scopus | Orcid | Google Scholar 

Featured Publications

Okere, C. J., & Sheng, J. J. (2023). Review on clean hydrogen generation from petroleum reservoirs: Fundamentals, mechanisms, and field applications. International Journal of Hydrogen Energy, 101.

Edouard, M. N., Okere, C. J., Ejike, C., Dong, P., & Suliman, M. A. M. (2023). Comparative numerical study on the co-optimization of CO₂ storage and utilization in EOR, EGR, and EWR: Implications for CCUS project development. Applied Energy, 347, 121448.

Eyitayo, S. I., Okere, C. J., Hussain, A., Gamadi, T., & Watson, M. C. (2024). Synergistic sustainability: Future potential of integrating produced water and CO₂ for enhanced carbon capture, utilization, and storage (CCUS). Journal of Environmental Management, 351, 119713.

He, J., Okere, C. J., Su, G., Hu, P., Zhang, L., Xiong, W., & Li, Z. (2021). Formation damage mitigation mechanism for coalbed methane wells via refracturing with fuzzy-ball fluid as temporary blocking agents. Journal of Natural Gas Science and Engineering, 90, 103956.

Okere, C. J., Su, G., Zheng, L., Cai, Y., Li, Z., & Liu, H. (2020). Experimental, algorithmic, and theoretical analyses for selecting an optimal laboratory method to evaluate working fluid damage in coal bed methane reservoirs. Fuel, 282, 118513.

Tao, X., Okere, C. J., Su, G., & Zheng, L. (2022). Experimental and theoretical evaluation of interlayer interference in multi-layer commingled gas production of tight gas reservoirs. Journal of Petroleum Science and Engineering, 208, 109731.

Okere, C. J., & Sheng, J. J. (2024). A new modelling approach for in-situ hydrogen production from heavy oil reservoirs: Sensitivity analysis and process mechanisms. Energy, 302, 131817.

Opara, S. U., & Okere, C. J. (2024). A review of methane leakage from abandoned oil and gas wells: A case study in Lubbock, Texas, within the Permian Basin. Energy Geoscience, 5(3), 100288.

Yonas Gezahegn | Engineering | Best Researcher Award

Published on by Research Awards

Dr. Yonas Gezahegn | Engineering | Best Researcher Award

Nestle Purina/Washington State University | United States

Dr. Yonas A. Gezahegn is a distinguished research and development engineer specializing in thermal and food process engineering, with extensive expertise in microwave-assisted thermal sterilization and pasteurization, heat and mass transfer, biochemical engineering, and food safety. With over 15 years of academic and industry experience, Dr. Gezahegn has developed a strong reputation for integrating engineering principles with advanced experimental and computational methods to optimize food processing and thermal treatment technologies. His research bridges the gap between fundamental engineering science and industrial applications, ensuring both efficiency and safety in food production systems. Dr. Gezahegn’s academic training includes a PhD in Biological Systems Engineering (Food Engineering) from Washington State University, where he focused on optimization of microwave-assisted thermal sterilization and pasteurization processes using analytical models and computer simulations. His prior degrees include a Master’s in Chemical Engineering from Addis Ababa University, and a Bachelor’s in Food and Biochemical Technology from Bahir Dar University, where his research addressed critical challenges in oil and fat extraction, fermentation, and food quality assessment. Currently serving as R&D Process Engineer – Thermal Process Expert at Nestle Purina, Dr. Gezahegn leads projects on process improvement, thermal sterilization validation, and retort commissioning for low-acid and acidified food products. He has successfully managed large-scale research projects, including microwave-assisted thermal processing of breaded meats, temperature distribution studies, and process optimization for commercial food production. His work also encompasses pilot-plant scale-up, analytical characterization, and data-driven modeling to ensure precise control of thermal processing conditions. Dr. Gezahegn has published over 12 peer-reviewed journal articles in top-tier journals, including the Journal of Food Engineering, Current Research in Food Science, Innovative Food Science & Emerging Technologies, Food Science and Nutrition, and LWT – Food Science and Technology. His publications focus on microwave-assisted processing, dielectric properties of foods, thermal pasteurization optimization, and oil extraction technologies. Notably, his research has led to multiple patents, including a utility model for screw expeller-based shea butter extraction and pending patents on gluten-free pizza crust and crispy breaded food processes. His work has been widely cited in the food engineering and process optimization communities, highlighting his influence in both academic and industrial research. In addition to research, Dr. Gezahegn has contributed extensively to industry-academic collaborations, securing competitive grants such as the USDA-NIFA and WSU Hatch projects totaling over USD 4 million, and Ethiopian national projects on drying and fermentation of plant-based products. Dr. Gezahegn published 12+ peer-reviewed articles, 550 Citations and 10 H-index.  His projects integrate  analytical modeling, simulation, experimental validation, and process design to improve efficiency, safety, and nutritional quality in food production. Dr. Gezahegn has served as a reviewer for journals including Applied Food Research, Journal of Food Engineering, and the International Journal for Vitamin and Nutrition Research, reflecting his standing in the research community. His leadership extends to professional societies, including IFT, IMPI, SoFE, and ASABE, and he has held roles such as President of the Food Engineering Club and departmental representative in the Graduate and Professional Student Association. Overall, Dr. Gezahegn’s work demonstrates a sustained commitment to advancing food engineering, thermal process optimization, and industrial innovation, making significant contributions to improving food safety, process efficiency, and product quality. His research portfolio combines rigorous academic scholarship with practical applications, establishing him as a leading expert in thermal food processing and microwave-assisted sterilization technologies.

Profiles: Scopus | Orcid

Featured Publications

Gezahegn, Y., Tang, J., et al. (2024). Development and validation of engineering charts: Heating time and optimal salt content prediction for microwave assisted thermal sterilization. Journal of Food Engineering, 369, 111909. https://doi.org/10.1016/j.jfoodeng.2023.111909

Gezahegn, Y., Yoon-Ki, H., Tang, J., et al. (2023). Development and validation of analytical charts for microwave assisted thermal pasteurization of selected food products. Journal of Food Engineering, 349, 111434. https://doi.org/10.1016/j.jfoodeng.2023.111434

Zhou, X., Gezahegn, Y., et al. (2023). Theoretical reasons for rapid heating of vegetable oils by microwaves. Current Research in Food Science, 7, 100641. https://doi.org/10.1016/j.crfs.2023.100641

Gezahegn, Y., Tang, J., Sablani, S., et al. (2021). Dielectric properties of water relevant to microwave assisted thermal pasteurization and sterilization of packaged foods. Innovative Food Science & Emerging Technologies, 74, 102837. https://doi.org/10.1016/j.ifset.2021.102837

Gezahegn, Y., Emire, S., & Asfaw, S. (2016). Optimization of Shea (Vitellaria paradoxa) butter quality using screw expeller extraction. Food Science & Nutrition, 4(6), 840–847. https://doi.org/10.1002/fsn3.351

Gezahegn, Y., Emire, S., & Asfaw, S. (2016). Effect of processing factors on Shea (Vitellaria paradoxa) butter extraction. LWT – Food Science and Technology, 66, 172–178. https://doi.org/10.1016/j.lwt.2015.10.036