Academic staff
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I am a Senior Lecturer in the Division of Chemical and Energy Engineering in the School of Engineering. I am also a link tutor for the British University in Egypt.
Since gaining my Ph.D. at the University of Surrey
I have published over 50 publications, most of them in top chemical engineering journals. I co-authored the book “Hydrodynamics of Gas-Liquid Reactors - Normal Operation and Upset Conditions”, ISBN-13: 978-0-470- 74771-1, 344 Pages, John Wiley & Sons, July 2011. I worked on a few EPSRC and industrially funded research projects.
I supervised dozens of Ph.D. and MSc students.
I have a wide interest in fundamental research on mass and heat transfer in multiphase systems, particularly focusing on novel reactor design and new process development spanning from mass transfer in jet loop reactors to liquid macro- and micro-mixing in stirred tanks; from boiling heat transfer enhancement to phase distribution in pipes and bends and from studying the behaviour of normal fluids to that of ionic liquids. Oxyfuel combustion, H2 production, and flow assurance in pipelines are my current research areas.
Courses taught
Chemical and Energy Engineering - BEng (Hons)
Advanced Chemical Engineering - MSc
Postgraduate Research Supervision
Current
| Ms Esraa Khaled Aly Darwish | Doctoral Research Project | PhD |
Awarded in the last 5 years
| Mr Victor Nnamdi Onyenkeadi | Heterogeneous Catalytic Conversion of Carbon Dioxide into 1,2-Butylene Carbonate and Styrene Carbonate | PhD |
| Mr Nura Makwashi | Investigation of Wax Depositional Behaviour in Straight and Curved Pipes– Experiments and Simulation | PhD |
| Mr Yusuf Wakili Umar | Synthesis and Characterisation of Biodiesel: A Study on Oxidation Stability Enhancement | PhD |
| Epigeum Supervisory Training | PhD |
The University of Surrey
Link tutor
Quality assurance
From Soybeans to Tofu: The Underlying Chemistry
Wang, B., Wang, Qi, Wang, B., Wang, S., Zhang, Y. and Zhao, D. (2023). From Soybeans to Tofu: The Underlying Chemistry. Journal of Chemical Education. https://doi.org/10.1021/acs.jchemed.3c00096
Directional motion of Gallium-based liquid metal induced by asymmetric chemical surrounding
Wang, B., Wang, Q., Zhang Y.W, Zhang Y.C., Li Y. and Zhao, D. (2023). Directional motion of Gallium-based liquid metal induced by asymmetric chemical surrounding. Journal of Chemical Education. 100 (8), pp. 3156-3161. https://doi.org/10.1021/acs.jchemed.3c00311
A Mechanistic Model on Catalyst Deactivation by Coke Formation in a CSTR Reactor
Zhao, D., Muhammad, I, Makwashi, N., Ahmed, T and Manos, G. (2023). A Mechanistic Model on Catalyst Deactivation by Coke Formation in a CSTR Reactor. Processes. 11 (3), pp. 944-962. https://doi.org/10.3390/pr11030944
Investigating the Behaviour of Air–Water Upward and Downward Flows: Are You Seeing What I am Seeing?
Zhao, D., Abdulkadir, M., Kajero, O., Olarinoye, F. O., Udebhulu, O. D., Aliyu, A. M. and Al-Sarkhi, A. (2021). Investigating the Behaviour of Air–Water Upward and Downward Flows: Are You Seeing What I am Seeing? Energies. 14 (21), p. 7071. https://doi.org/10.3390/en14217071
Experimental investigation of liquid viscosity's effect on the flow behaviour and void fraction in a small diameter bubble column: How much do we know?
Abdulkadir, M., Kajero, O., Zhao, D., Al–Sarkhi, A. and Hunt, A. (2021). Experimental investigation of liquid viscosity's effect on the flow behaviour and void fraction in a small diameter bubble column: How much do we know? Journal of Petroleum Science and Engineering. 207, p. 109182. https://doi.org/10.1016/j.petrol.2021.109182
Study on Waxy Crudes Characterisation and Chemical Inhibitor Assessment
Zhao, D., Makwashi, N., Abdulkadir, M., Ahmed, T. and Muhammad, I. (2021). Study on Waxy Crudes Characterisation and Chemical Inhibitor Assessment . Journal of Petroleum Science and Engineering. https://doi.org/10.1016/j.petrol.2021.108734
Experimental investigation of the characteristics of the transition from spherical cap bubble to slug flow in a vertical pipe
Abdulkadir, M., Ugwoke, B., Abdulkareem, L., Zhao, D. and Hernandez-Perez, V. (2021). Experimental investigation of the characteristics of the transition from spherical cap bubble to slug flow in a vertical pipe. Experimental Thermal and Fluid Science. https://doi.org/10.1016/j.expthermflusci.2021.110349
Insights into the transition from plug to slug flow in a horizontal pipe: An experimental study
Abdulkadir, M., Zhao, D., Abdulkareem, L.A., Asikolaye, N.O. and Hernandez-Perez, V. (2020). Insights into the transition from plug to slug flow in a horizontal pipe: An experimental study. Chemical Engineering Research and Design. 163, pp. 85-95. https://doi.org/10.1016/j.cherd.2020.08.025
Pressure drop, void fraction and flow pattern of vertical air-silicone oil flows using differential pressure transducer and advanced instrumentation
Zhao, D., Abdulkadir, M, Abdulkareem, LA and Jatto, DG (2020). Pressure drop, void fraction and flow pattern of vertical air-silicone oil flows using differential pressure transducer and advanced instrumentation. Chemical Engineering Research and Design. 159, pp. 262-277. https://doi.org/10.1016/j.cherd.2020.04.009
Depositional Behaviour of Highly Macro-Crystalline Waxy Crude Oil Blended with Polymer Inhibitors in a Pipe with a 45-Degree Bend
Makwashi, Nura, Barros, Delcia Soraia, Sarkodie, Kwame, Zhao, Donglin and Diaz, Pedro A. (2019). Depositional Behaviour of Highly Macro-Crystalline Waxy Crude Oil Blended with Polymer Inhibitors in a Pipe with a 45-Degree Bend. Day 4 Fri, September 06, 2019. https://doi.org/10.2118/195752-ms
Investigation of the Severity of Wax Deposition in Bend Pipes Under Subcooled Pipelines Conditions
Makwashi, Nura, Sarkodie, Kwame, Akubo, Stephen, Zhao, Donglin and Diaz, Pedro (2019). Investigation of the Severity of Wax Deposition in Bend Pipes Under Subcooled Pipelines Conditions. Day 4 Thu, June 06, 2019. https://doi.org/10.2118/195559-ms
Characteristics of churn and annular flows in a large diameter vertical riser
Zhao, D, Abdulkadir, M, Mbalisigwe, UP, Hernandez-Perez, V, Azzopardi, BJ and Tahir, S (2019). Characteristics of churn and annular flows in a large diameter vertical riser. International Journal of Multiphase Flow. 113, pp. 250-263. https://doi.org/10.1016/j.ijmultiphaseflow.2019.01.013
Annular liquid film thickness prediction in a vertical 180o return bend
Abdulkadir, M, Samson, JN, Zhao, D, Okhiria, DU and Hernandez-Perez, V (2018). Annular liquid film thickness prediction in a vertical 180o return bend. Experimental Thermal and Fluid Science. 96, pp. 205-215. https://doi.org/10.1016/j.expthermflusci.2018.03.006
Characterisation of an analogue liquid for hydrodynamic studies of gas-ionic liquid flows
Zhao, D, Azzopardi, BJ, Agunlejika, E, Kaji, R and Hewakandamby, B (2017). Characterisation of an analogue liquid for hydrodynamic studies of gas-ionic liquid flows. Chemical Engineering Journal. 330, pp. 223-235. https://doi.org/10.1016/j.cej.2017.07.090
The control and maintenance of desired flow patterns in bends of different orientations
Zhao, D, Omar, R., Abdulkadir, M., Abdulkareem, L.A., Azzi, A., Saidj, F., Hernandez Perez, V., Hewakandamby, B.N. and Azzopardi, B.J. (2016). The control and maintenance of desired flow patterns in bends of different orientations. Flow Measurement and Instrumentation. 53 (B), pp. 230-242. https://doi.org/10.1016/j.flowmeasinst.2016.09.003