Professor Yulong Ding

Yulong Ding Professor in Chemical Engineering Tel: +44 (0) 113 343 2747 E-mail: y.ding@leeds.ac.uk Link to Dr Ding's Research Group

Multiphase Flow and Heat Transfer and Nanoparticulate Science & Engineering

Nanoparticle production and characterisation, nanofluids production and characterisation, Nano-assemblies and nano-composites, particle size enlargement and reduction, spreading and wetting, fluidisation, packed beds, hydrogen production, adsorption enhanced reaction processes

My research interests are mainly in various areas of particle science and engineering, and to a less extent in the reaction engineering particularly adsorption enhanced reaction processes.  My work involves both experimental work and mathematical modelling, and the latter including developing and validating conceptual models based on continuous theories and discrete particle models.

Research Interests

Particle Science and Engineering

·    Nanoparticle production by bottom-up approach

·    Nanofluids production and characterisation

·    Nanoparticle engineering of complex fluids

·    Nanofluids for process intensification

·    Spreading, wetting, and drying behaviour of nanofluids

·    Rheology of nanofluids

·    Production and characterisation of nano-assemblies and nano-composites

·    Solids motion and heat transfer, and solids mixing and segregation in fluidised beds, fixed beds, moving beds, and rotating drums

·    Size reduction by milling and size enlargement by high shear granulation

·    Development of instrument for charactering cohesive powders, submicron and nanoparticles

Reaction Engineering

·    Adsorption enhanced chemical reaction processes

·    Development of novel reactors

·    Green chemical technology

Selected Publications

1. Y.L. Ding and D.S. Wen (2005) Particle migration in a flow of nanoparticle suspension, Powder Technology, 149, 84-92.
2. D.S. Wen and Y.L. Ding (2004) Effective thermal conductivity of carbon nanotube suspensions (CNT nanofluids), Journal of Thermophysics and Heat Transfer, 4, 481-485
3. D.S. Wen and Y.L. Ding (2004) Convective heat transfer of nanofluids at the entrance region under laminar flow conditions, International Journal of Heat and Mass Transfer, 47, 5181-5188.
4. Z.L. Wang, Y.L. Ding and M. Ghadiri (2004) Flow of a gas-solid mixture through a packed bed, Chemical Engineering Science, 59, 3071-3079.
5. Y.Q. Chen, Y.L. Ding, D.G. Papadopoulos, and M. Ghadiri (2004) Milling of a-lactose monohydrate using a single ball mill, Journal of Pharmaceutical Sciences, 93(4), 886-895
6. M. Stein, Y.L. Ding and J.P.K. Seville (2002) Experimental verification of the scaling relationships for bubbling gas fluidised beds using the PEPT technique, Chemical Engineering Science, 57, 3649-3658.
7. Y.L. Ding, R.N. Forster, J.P.K. Seville and D.J. Parker (2002) Segregation of granular flow in the transverse plane of a rolling mode rotating drum, International Journal of Multiphase Flow, 28, 635-663.
8. Y.L. Ding, R.N. Forster, J.P.K. Seville and D.J. Parker (2002) Granular motion in rotating drums: bed turnover time and slumping to rolling transition, Powder Technology, 124, 18-27.
9. Y.L. Ding, R.N.G. Forster, J.P.K. Seville and D.J. Parker (2001) Solids motion in rotating drums operated at low to medium rotational speeds, Chemical Engineering Science, 56, 1769-1780.

Water/Oil emulsion on glass substrate in presence of alumina nanoparticles: nanoparticles (red) concentrate at the oil/water interface on the water side

 

Spreading and drying of part of a droplet of 4% polyethylene nanofluid on glass: The central part is in liquid state and shrinks while drying, and radial cracks develop in the meantime

 

Radial distribution of average axial solids velocity in packed bed obtained by PEPT experiments