Multiphase Flow Laboratory

About

 In this lab, fundamental experimental and numerical studies on gas-solid two phase flows, fluidization, fluidized and spouted beds are carried out. 

Research Infrastructure

  • Optical probe for particle velocity and concentration measurements
  • Infrared gas analyzer (CO2)
  • Tracer gas/gas mixing analysis system
  • Flow meters, pressure meters, humidity meters, temperature meters, DAQ system
  • Different sizes of fluidized and spouted beds
  • High-speed camera
  • ANSYS FLUENT and MFIX for CFD simulations

 

 

Researchers

•    Dr. Murat Köksal (HU Mechanical Engineering)
•    Dr. Görkem Külah (METU Chemical Engineering)
•    Neslin Doğan (PhD Student, METU Chemical Engineering)
 

Ongoing Projects

  •  

    Development of a Spouted Bed Receiver for Concentrated Solar Energy Systems, The Scientific and Technological Research Council of Turkey (TUBITAK), Project No: MAG 122M514, 2022-2025 (PI: Görkem Külah, METU; Co-PI: Murat Köksal)

Completed Projects

  • Gas-Particle Flow Dynamics and Bed-to-Surface Heat Transfer in Spout-Fluid Beds, The Scientific and Technological Research Council of Turkey (TUBITAK), Project No: MAG 115M392, 2015-2018. 

  • Investigation of Hydrodynamic Characteristics of Spouted Bed Nuclear Fuel Coaters, The Scientific and Technological Research Council of Turkey (TUBITAK), Project No: MAG 108M435, 2009-2011. 

  • Drying of Natural Zeolite ‘Clinoptilolite’ with a Draft-Tube Spout-Fluid Bed Dryer, The Scientific and Technological Research Council of Turkey (TUBITAK), Project No: MAG 112M231, 2012-2015.

Publications

Journal Publications (Web of Science)

  1. Dogan, N*., Koksal, N., Kulah, G., Gas Velocity Distributions in Conical Spouted Beds with High Density Particles, The Canadian Journal of Chemical Engineering, v.99(2), 1607-1615, 2021.
  2. Yaman, O*., Kulah, G., Koksal, M., “Comment on “Deciphering Conical Spouted Bed Hydrodynamics Using High Intensity Microphone””, Nuclear Engineering and Design, 110242, 2019.
  3. Savari, C*., Satudeh-Gharebagh, R., Kulah, G., Koksal, M., Mostoufi, N., “Detecting stability of conical spouted beds based on information entropy theory”, Powder Technology, v.343, 185-193, 2019.
  4. Yaman, O*., Kulah, G., Koksal, M., “Surface-to-Bed Heat Transfer for High Density Particles in Conical Spouted and Spout-Fluid Beds”, Particuology, v. 42, 35-47, 2019.
  5. Golshan, S*., Yaman, O*., Koksal, M., Kulah, G., Zarghami, R., Mostoufi, N., “A New Correlation for Minimum Spouting Velocity for Conical Spouted Beds Operating with High Density Particles”, Experimental Thermal and Fluid Science, v. 96, p. 358–370, 2018.
  6. Savari, C*., Kulah, G., Koksal, M., Sotudeh-Gharebagh, R., Zarghamia, R., Mostoufi, N., “Monitoring of Liquid Sprayed Conical Spouted Beds by Recurrence Plots”, Powder Technology, vol. 316, p. 148-156, 2017.
  7. Savari, C*., Kulah, G., Sotudeh-Gharebagh, R., Mostoufi, N., Koksal, M., “Early Detection of Agglomeration in Conical Spouted Beds using Recurrence Plots”, Industrial & Engineering Chemistry Research, v.55 (26), p. 7179−7190, 2016.
  8. Kulah, G., Sari, S*., Koksal, M., “Particle Velocity, Solids Hold-Up and Flux Distributions in Conical Spouted Beds Operating with Heavy Particles", Industrial & Engineering Chemistry Research, v.55, p. 3131-3138, 2016.
  9. Senturk-Lule, S*., Colak, U., Koksal, M., Kulah, G., "CFD Simulations of Hydrodynamics of Conical Spouted Bed Nuclear Fuel Coaters", Chemical Vapor Deposition, v.21, p. 122-132, 2015. (featured on the cover page of the journal).
  10. Mostoufi, N., Kulah, G., Koksal, M., "Flow Structure Characterization in Conical Spouted Beds Using Pressure Fluctuation Signals", Powder Technology, v.269, p. 392-400, 2015.
  11. Sari, S*., Kulah, G., and Koksal, M., “Characterization of Gas-Solid Flow in Conical Spouted Beds Operating with Heavy Particles”, Experimental Thermal and Fluid Science, v. 40, p. 132-139, 2012.

Refereed Full Papers Presented in Conferences and Published in Proceedings  

  1. Golshan S*., Zarghami R., Mostoufi N., Koksal M., Kulah G., “CFD-DEM Simulation of a Conical Spouted Bed Operating with High Density Particles”, In: Li X., Feng Y., Mustoe G. (eds) Proceedings of the 7th International Conference on Discrete Element Methods, DEM 2016, Springer Proceedings in Physics, vol 188, p. 947 – 955, Springer, Singapore, 2017.
  2. Sari, S*., Polat, A*., Zaglanmis, D*., Kulah, G., and Koksal, M., "Hydrodynamics of Conical Spouted Beds with High Density Particles", International Conference on Circulating Fluidized Beds and Fluidized Bed Technology, CFB-10, Oregon, USA, May 2011.

Conference/Workshop Presentations with Refereed and Published Abstracts   

  1. Guler*, N., Kulah, G., Koksal, M, “Gas Velocity Distributions in Conical Spouted Beds with High Density Particles”, Fluidization XVI, Guilin, China, May 2019.
  2. Yaman O*., Koksal, M., Kulah, G., "Surface-to-Bed Heat Transfer in Conical Spout-Fluid Beds with High Density Particles", 7th International Symposium on Spouted Beds (10th World Congress of Chemical Engineering), Barcelona, Spain, October 2017.
  3. Golshan, S*., Yeniceri, A*., Zarghami, R., Mostoufi, N., Koksal, M., Kulah, G., "Effects of Particle Density and Gas Inlet Diameter on Particle Velocity, Solids Hold-up and Flux Distributions  in Conical Spouted Beds with High Density Particles", 7th International Symposium on Spouted Beds (10th World Congress of Chemical Engineering), Barcelona, Spain, October 2017.
  4. Sotudeh-Gharebagh, R.,Savari, C*., Mostoufi, N., Zarghami, R., Kulah, G., and Koksal, M., "Monitoring of the hydrodynamic instabilities in conical spouted beds by recurrence plot analysis of pressure fluctuations and acoustic emission signals" in "Fluidization XV", Jamal Chaouki, Ecole Polytechnique de Montreal, Canada Franco Berruti, Western University, Canada, Xiaotao Bi, UBC, Canada Ray Cocco, PSRI Inc. USA, Eds, ECI Symposium Series, 2016.
  5. Nasirimarekani, V*., Koksal, M., Karabiyik AG*., Kulah, G., "Hydrodynamic Characteristics of Fine Zeolite Particles in a Conical Spout-fluid Bed with a Draft Tube", 64th Canadian Chemical Engineering Conference, Niagara Falls, 2014.
  6. Nasirimarekani, V*., Koksal, M., Kulah, G., Savari, C*., Mostoufi, N., Sotudeh-Gharebagh, R., "Simultaneous Analyses of Pressure, Vibration and Acoustic Signals from a Conical Spouted Bed with High Density Particles", 64th Canadian Chemical Engineering Conference, Niagara Falls, 2014.
  7. Ocal, C*., Koksal, M., Kulah, G., “Characterization of Gas-Solid Flow in Vibrated Fluidized Bed Operated with Natural Zeolite Powders”, 62nd Canadian Chemical Engineering Conference, Vancouver, 2012.
  8. Cangal, P*., Kulah, G., Koksal, M., “Gas Mixing in Conical Spouted Beds with Heavy Particles”, 62nd  Canadian Chemical Engineering Conference (6th International Symposium on Spouted Beds), Vancouver, 2012.

Links

Web Page
multiphase.hacettepe.edu.tr

About

 In this lab, fundamental experimental and numerical studies on gas-solid two phase flows, fluidization, fluidized and spouted beds are carried out. 

Research Infrastructure

  • Optical probe for particle velocity and concentration measurements
  • Infrared gas analyzer (CO2)
  • Tracer gas/gas mixing analysis system
  • Flow meters, pressure meters, humidity meters, temperature meters, DAQ system
  • Different sizes of fluidized and spouted beds
  • High-speed camera
  • ANSYS FLUENT and MFIX for CFD simulations

 

 

Researchers

•    Dr. Murat Köksal (HU Mechanical Engineering)
•    Dr. Görkem Külah (METU Chemical Engineering)
•    Neslin Doğan (PhD Student, METU Chemical Engineering)
 

Ongoing Projects

  •  

    Development of a Spouted Bed Receiver for Concentrated Solar Energy Systems, The Scientific and Technological Research Council of Turkey (TUBITAK), Project No: MAG 122M514, 2022-2025 (PI: Görkem Külah, METU; Co-PI: Murat Köksal)

Completed Projects

  • Gas-Particle Flow Dynamics and Bed-to-Surface Heat Transfer in Spout-Fluid Beds, The Scientific and Technological Research Council of Turkey (TUBITAK), Project No: MAG 115M392, 2015-2018. 

  • Investigation of Hydrodynamic Characteristics of Spouted Bed Nuclear Fuel Coaters, The Scientific and Technological Research Council of Turkey (TUBITAK), Project No: MAG 108M435, 2009-2011. 

  • Drying of Natural Zeolite ‘Clinoptilolite’ with a Draft-Tube Spout-Fluid Bed Dryer, The Scientific and Technological Research Council of Turkey (TUBITAK), Project No: MAG 112M231, 2012-2015.

Publications

Journal Publications (Web of Science)

  1. Dogan, N*., Koksal, N., Kulah, G., Gas Velocity Distributions in Conical Spouted Beds with High Density Particles, The Canadian Journal of Chemical Engineering, v.99(2), 1607-1615, 2021.
  2. Yaman, O*., Kulah, G., Koksal, M., “Comment on “Deciphering Conical Spouted Bed Hydrodynamics Using High Intensity Microphone””, Nuclear Engineering and Design, 110242, 2019.
  3. Savari, C*., Satudeh-Gharebagh, R., Kulah, G., Koksal, M., Mostoufi, N., “Detecting stability of conical spouted beds based on information entropy theory”, Powder Technology, v.343, 185-193, 2019.
  4. Yaman, O*., Kulah, G., Koksal, M., “Surface-to-Bed Heat Transfer for High Density Particles in Conical Spouted and Spout-Fluid Beds”, Particuology, v. 42, 35-47, 2019.
  5. Golshan, S*., Yaman, O*., Koksal, M., Kulah, G., Zarghami, R., Mostoufi, N., “A New Correlation for Minimum Spouting Velocity for Conical Spouted Beds Operating with High Density Particles”, Experimental Thermal and Fluid Science, v. 96, p. 358–370, 2018.
  6. Savari, C*., Kulah, G., Koksal, M., Sotudeh-Gharebagh, R., Zarghamia, R., Mostoufi, N., “Monitoring of Liquid Sprayed Conical Spouted Beds by Recurrence Plots”, Powder Technology, vol. 316, p. 148-156, 2017.
  7. Savari, C*., Kulah, G., Sotudeh-Gharebagh, R., Mostoufi, N., Koksal, M., “Early Detection of Agglomeration in Conical Spouted Beds using Recurrence Plots”, Industrial & Engineering Chemistry Research, v.55 (26), p. 7179−7190, 2016.
  8. Kulah, G., Sari, S*., Koksal, M., “Particle Velocity, Solids Hold-Up and Flux Distributions in Conical Spouted Beds Operating with Heavy Particles", Industrial & Engineering Chemistry Research, v.55, p. 3131-3138, 2016.
  9. Senturk-Lule, S*., Colak, U., Koksal, M., Kulah, G., "CFD Simulations of Hydrodynamics of Conical Spouted Bed Nuclear Fuel Coaters", Chemical Vapor Deposition, v.21, p. 122-132, 2015. (featured on the cover page of the journal).
  10. Mostoufi, N., Kulah, G., Koksal, M., "Flow Structure Characterization in Conical Spouted Beds Using Pressure Fluctuation Signals", Powder Technology, v.269, p. 392-400, 2015.
  11. Sari, S*., Kulah, G., and Koksal, M., “Characterization of Gas-Solid Flow in Conical Spouted Beds Operating with Heavy Particles”, Experimental Thermal and Fluid Science, v. 40, p. 132-139, 2012.

Refereed Full Papers Presented in Conferences and Published in Proceedings  

  1. Golshan S*., Zarghami R., Mostoufi N., Koksal M., Kulah G., “CFD-DEM Simulation of a Conical Spouted Bed Operating with High Density Particles”, In: Li X., Feng Y., Mustoe G. (eds) Proceedings of the 7th International Conference on Discrete Element Methods, DEM 2016, Springer Proceedings in Physics, vol 188, p. 947 – 955, Springer, Singapore, 2017.
  2. Sari, S*., Polat, A*., Zaglanmis, D*., Kulah, G., and Koksal, M., "Hydrodynamics of Conical Spouted Beds with High Density Particles", International Conference on Circulating Fluidized Beds and Fluidized Bed Technology, CFB-10, Oregon, USA, May 2011.

Conference/Workshop Presentations with Refereed and Published Abstracts   

  1. Guler*, N., Kulah, G., Koksal, M, “Gas Velocity Distributions in Conical Spouted Beds with High Density Particles”, Fluidization XVI, Guilin, China, May 2019.
  2. Yaman O*., Koksal, M., Kulah, G., "Surface-to-Bed Heat Transfer in Conical Spout-Fluid Beds with High Density Particles", 7th International Symposium on Spouted Beds (10th World Congress of Chemical Engineering), Barcelona, Spain, October 2017.
  3. Golshan, S*., Yeniceri, A*., Zarghami, R., Mostoufi, N., Koksal, M., Kulah, G., "Effects of Particle Density and Gas Inlet Diameter on Particle Velocity, Solids Hold-up and Flux Distributions  in Conical Spouted Beds with High Density Particles", 7th International Symposium on Spouted Beds (10th World Congress of Chemical Engineering), Barcelona, Spain, October 2017.
  4. Sotudeh-Gharebagh, R.,Savari, C*., Mostoufi, N., Zarghami, R., Kulah, G., and Koksal, M., "Monitoring of the hydrodynamic instabilities in conical spouted beds by recurrence plot analysis of pressure fluctuations and acoustic emission signals" in "Fluidization XV", Jamal Chaouki, Ecole Polytechnique de Montreal, Canada Franco Berruti, Western University, Canada, Xiaotao Bi, UBC, Canada Ray Cocco, PSRI Inc. USA, Eds, ECI Symposium Series, 2016.
  5. Nasirimarekani, V*., Koksal, M., Karabiyik AG*., Kulah, G., "Hydrodynamic Characteristics of Fine Zeolite Particles in a Conical Spout-fluid Bed with a Draft Tube", 64th Canadian Chemical Engineering Conference, Niagara Falls, 2014.
  6. Nasirimarekani, V*., Koksal, M., Kulah, G., Savari, C*., Mostoufi, N., Sotudeh-Gharebagh, R., "Simultaneous Analyses of Pressure, Vibration and Acoustic Signals from a Conical Spouted Bed with High Density Particles", 64th Canadian Chemical Engineering Conference, Niagara Falls, 2014.
  7. Ocal, C*., Koksal, M., Kulah, G., “Characterization of Gas-Solid Flow in Vibrated Fluidized Bed Operated with Natural Zeolite Powders”, 62nd Canadian Chemical Engineering Conference, Vancouver, 2012.
  8. Cangal, P*., Kulah, G., Koksal, M., “Gas Mixing in Conical Spouted Beds with Heavy Particles”, 62nd  Canadian Chemical Engineering Conference (6th International Symposium on Spouted Beds), Vancouver, 2012.

Links

Web Page
multiphase.hacettepe.edu.tr