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Yang Chun, Charles


Yang Chun, Charles
Professor
Tel: 6790 4883
Email: mcyang@ntu.edu.sg
Office: N3.2-02-77 
   
Education
  • PhD University of Alberta 1999
  • MS Univ of Science & Technology of China 1988
  • BS Tsinghua University 1985

Biography
Dr. Yang obtained his B.Eng. degree in Thermal Engineering (HVAC&R) from Tsinghua University, Master’s degree in Engineering Thermophysics from University of Science and Technology of China, and Ph.D. degree from University of Alberta. Prior to joining Nanyang Technological University as an Assistant Professor in 1999, he was with Syncrude Canada Ltd. - Edmonton Research Centre under NSERC Chair Programme in Oil Sands from 1996-1999. In 2005 he became an Associate Professor. Dr. Yang received the honor of excellent student (Tsinghua) and is a recipient of the Andrew Steward memory graduate prize award (University of Alberta). He is the author and coauthor of more than 150 papers in referred international journals and 21 book chapters. He sits in several journal editorial and advisory boards, e.g., Microfluidics and Nanofluidics, International Journal of Emerging Multidisciplinary Fluid Sciences, American Journal of Analytical Chemistry, Thermal Energy and Power Engineering, Current Advances in Energy Research, Nanoscience & Nanotechnology-ASIA, Science Bulletin, etc. He has served as an external reviewer for National Science Award of China, Research Grant Council of Hong Kong, Research Grant Council of Australia, Netherlands Organisation for Scientific Research, Natural Science and Engineering Research Council (NSERC) of Canada, Israel Science Foundation, and Czech Science Foundation. He has graduated 12 PhD and 4 Master’s students.

Research
  • Interest:
    Microfluidics and nanofluidics, Electrokinetic transport phenomena, Micro- and nano-scale heat transfer, Surface and colloidal science, Bubbles/droplets dynamics, Icing formation and vapour condensation, and Forward osmosis for green power.
  • Projects:
    Novel Electrokinetic Power Generation via Forward Osmosis
    We have proposed a new power generation method for harvesting renewable energy from salinity gradient that is available from seawater, brackish water and concentrated brine discharged from desalination plants. The principle of the proposed method encompasses forward osmosis (FO) and electrokinetic (FK) phenomena. Our preliminary results show that the FO-EK technique can produce electrical voltages in the same order of magnitude as those produced by one typical fuel cell unit. The projected power density based on our experimental results is comparable to those generated by pressure-retarded osmosis (PRO) and reverse electrodialysis (RED) technologies. We are working on modeling and scalability development.
    [Energy Systems Laboratory, Thermo-Fluid & Energy]
    Thermophoresis of Micro- and Nano-Particles
    The main objective of the present project is to carry out both theoretical and experimental studies to directly address several fundamental issues related to thermophoresis. Experimentally, we propose a microfluidic technique as a new experimental tool to directly visualize and characterize the dynamic behavior of both micro and nano-sized particles under various physicochemical conditions. Meanwhile, new theoretical modeling and analysis of theremophoresis by using both analytical and numerical approaches are carried out.
    [Thermal & Fluids Laboratory, Thermo-Fluid & Energy]
    Electrokinetic Flow of Non-Newtonian Fluids
    This topic is of high relevance for electrokinetically-driven microfluidic and nanofluidic systems which are routinely used to process and analyze non-Newtonian fluids, such as biofluids, polymeric solutions and colloidal suspensions. Our current research focuses on fundamental understanding and characterization of the electrokinetic flow of non-Newtonian fluids.
    [Thermo-Fluid & Energy]
    Microfluidic Separation of Live and Dead Cells in Continuous Flow
    We are developing polymer micro flow cytometer with applications in environmental monitoring. Flow cytometry is a technique for counting, examining and sorting biological cells and particles suspended in a liquid stream. Our proposed micro flow cytometry will highlight the following features: (i) alignment of cells via hydrodynamic focusing, (ii) separation of live and dead cells via dielectrophoresis, and (iii) on-chip counting.
    [Thermal & Fluids Laboratory, Thermo-Fluid & Energy]
    Induced-Charge Electrokinetic (ICEK) Flow and its Applications
    Induced-charge electrokinetics deals with a new group of non-linear electrokinetic phenomena. The project aims at theoretical advancement of nonlinear ICEK flows and exploration of their applications in micro/nano fluidics. In particular, we are working on derivation of generalized electric boundary conditions, dynamic characteristics of the charging of electric double layers and the associated induced flows around polarizable dielectrics, implementation of ICEK phenomena to nanofluidics, and the use of ICEK flow for particle manipulations.
    [Thermal & Fluids Laboratory, Thermo-Fluid & Energy]
    Characterization of Thermoplasmonic Heat Transfer in Liquids
    This project is to fundamentally study thermoplasmonics with emphasis on ensemble effects. Thermoplasmonics refers to a new phenomenon involving the resistive heat-loss in nano-sized metallic particles under light illumination due to their enhanced absorption capabilities. We are carrying out both experimental investigation and theoretical analysis to characterize thermoplasmonic heat transfer with exploring applications in energy utilization and storage.
    [Thermal & Fluids Laboratory, Thermo-Fluid & Energy]

Research Staff and Students under supervision

Research Staff
Name Title Email
Zhou Yi Research Associate YIZHOU@ntu.edu.sg

PhD Students
Name Project
Dhiman Das Separation and Characterization of Oil-water Mixtures
Hon Kar Cherng Electrokinetic Power Generation Driven By Forward Osmosis
Toh Guek Geok, Alicia Concentration Gradient Generating Devices for Microfluidic and Micro Optofluidic Applications
Shang Xiaopeng Dynamics of Bubbles in Microfluidic Chamber with Actuations
Zhou Yi Microfluidic Study of Hydrodynamic Effects on Thermophoresis
Phan Dinh Tuan Small-scale, Energy Efficient and Fouling Resistant Desalination System
Jiao Yanmei Thermal and Surface Aspects in Microfluidics
Li Yang Coordinated Design of Energy Storage Systems in Electrical Networks Which Contain Significant Level of Renewable Sources

Master Student
Name Project
Ho Jin Yao Nanostructured  Surface Enhanced Boiling for Advanced Cooling

Selected Publications
  • C.L Zhao, Y.X. Song and Chun Yang "Induced-charge electrokinetics in a conducting nanochannel with broken geometric symmetry-towards a flexible control of ionic transport" Physics of Fluids, Vol. 27, 012003, 2015.
  • Y.M. Jiao, Chun Yang and Y.J. Kang “Energy conversion from salinity gradients by forward osmosis-electrokinetics.” Journal of Physical Chemistry C, Vol. 118, 10574–10583, 2014.
  • C.L. Zhao, Chun Yang “Electrokinetics of non-Newtonian fluids: a review.” Advanced in Colloid and Interface Science, Vol. 201, 94-108, 2013.
  • Y.G. Zhao, C.L. Zhao, J.H. He, Y Zhou, Chun Yang "Collective effect on thermophoresis of colloids: a microfluidic study within framework of DLVO theory" Soft Matter, Vol. 9, 7726-7734, 2013.
  • C.L. Zhao, Chun Yang "Advances in electrokinetics and their applications in micro/nano fluidics" Microfluidics and Nanofluidics, Vol.13, 179-203, 2012.
  • K. C. Hon, C.L. Zhao, Chun Yang and S.C. Low “A method of producing electrokinetic power through forward osmosis.” Applied Physics Letters, Vol. 101, 143902, 2012.
  • C.L. Zhao, Chun Yang “AC electrokinetic phenomena over semiconductive surfaces: effective electric boundary conditions and their applications” Physical Review E, Vol. 83, 066304, 2011
  • Z.W. Ge, W. Wang, Chun Yang “Towards high concentration enhancement of microfluidic temperature gradient focusing of sample solutes using combined AC and DC field induced Joule heating”, Lab on Chip, Vol. 11, 1396-1402, 2011.
  • N. Lewpiriyawong, K. Kandaswamy, Chun Yang, V. Ivanov, R. Stocker "Microfluidic characterization and continuous separation of cells and particles using conducting PDMS electrode induced ac-dielectrophoresis" Analytical Chemistry, Vol. 83, 9579-9585, 2011.
  • Z.W. Ge, Chun Yang and G.Y. Tang “Concentration enhancement of sample solutes in a sudden expansion microchannel structure with Joule heating.” International Journal of Heat and Mass Transfer, Vol. 53, 2722-2731, 2010.
  • W. Wang, Chun Yang and C.M. Li “Efficient on-demand compound droplet formation: from microfluidics to microdroplets as miniaturized laboratories.” Small, Vol. 5, 1149 -1152, 2009.
  • H.N. Unni, Chun Yang “Colloidal particle deposition from electrokinetic flow in a microfluidic channel” Electrophoresis, Vol. 30, 732 - 741, 2009.

Teaching
  • Advanced Heat and Mass Transfer
  • Psychrometry and Air Conditioning
  • Heat Transfer
  • Thermodynamics