Publications

Publications

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Invited PresentationsConference Abstracts and Technical Presentations


Books
Kadic, E., and Heindel, T.J., An Introduction to Bioreactor Hydrodynamics and Gas-Liquid Mass Transfer, John Wiley & Sons, Hoboken, NJ, 2014, http://www.wiley.com/WileyCDA/WileyTitle/productCd-1118104013.html.

Peer Reviewed Journal Articles

  1. 1. Kingston, T.A., Morgan, T.B., Geick, T.A., Robinson, T.R., Heindel, T.J., “A Cone-beam Compensated Back-projection Algorithm for X-ray Particle Tracking Velocimetry,” Flow Measurement and Instrumentation, To Appear, 2014.
  2. 2. Kingston, T.A., Heindel, T.J., “Granular Mixing Optimization and the Influence of Operating Conditions in a Double Screw Mixer,” Powder Technology, To Appear, 2014.
  3. 3. Kingston, T.A., and Heindel, T.J., “Optical Visualization and Composition Analysis to Quantify Continuous Granular Mixing Processes,” Powder Technology, 262: 257-264, 2014.
  4. 4. Escudero, D., and Heindel, T.J., “Acoustic Fluidized Bed Hydrodynamics Characterization using X-ray Computed Tomography,” Chemical Engineering Journal, 243: 411-420, 2014.
  5. 5. Halls, B.R., Heindel, T.J., Kastengren, A.L., and Meyer, T.R, “Evaluation of X-ray Sources for Quantitative Two- and Three-Dimensional Imaging of Liquid Mass Distribution in Atomizing Sprays,” International Journal of Multiphase Flow, 59(0): 113-120, 2014.
  6. 6. Escudero, D., and Heindel, T.J., “Minimum Fluidization Velocity in a 3D Fluidized Bed Modified with an Acoustic Field,” Chemical Engineering Journal, 231: 68-75, 2013.
  7. 7. Keller, N.K.G., Bai, W., Fox, R.O., and Heindel, T.J., “Quantifying Mixing in 3D Binary Particulate Systems,” Chemical Engineering Science, 93(0): 412-422, 2013.
  8. 8. Bai, W., Keller, N.K.G., Heindel, T.J., and Fox, R.O., “Numerical Study of Mixing and Segregation in a Biomass Fluidized Bed,” Powder Technology, 237: 355-366, 2013.
  9. 9. Drake, J.B., and Heindel, T.J., “Comparisons of Annular Hydrodynamic Structures in 3D Fluidized Beds Using X-ray CT,” Journal of Fluids Engineering – Transactions of the ASME, 134(8): 081305 (8 pages), 2012.
  10. 10. Xue, Q., Dalluge, D., Heindel, T.J., Fox, R.O., and Brown, R.C., “Experimental Validation and CFD Modeling Study of Biomass Fast Pyrolysis in Fluidized-Bed Reactors,” Fuel, 97: 757-769, 2012.
  11. 11. Drake, J.B., and Heindel, T.J., “Local Time-Average Gas Holdup Comparisons in Cold Flow Fluidized Beds,” Chemical Engineering Science, 68(1): 157-165, 2012.
  12. 12. Deza, M., Heindel, T.J., and Battaglia, F. “Effects of Mixing using a Side Port Air Injection on Biomass Fluidized Bed,” Journal of Fluids Engineering – Transactions of the ASME, 133(11): 111302 (9 pages), 2011.
  13. 13. Drake, J.B., and Heindel, T.J., “The Repeatability and Uniformity of 3D Fluidized Beds”, Powder Technology, 213(1-3): 148-154, 2011.
  14. 14. Heindel, T.J., “A Review of X-ray Flow Visualization with Applications to Multiphase Flows,” ASME Journal of Fluids Engineering, 133(7): 074001 (16 pages), 2011.
  15. 15. Escudero, D., and Heindel, T.J., “Bed Height and Material Density Effects on Fluidized Bed Hydrodynamics”, Chemical Engineering Science, 66(16): 3648-3655, 2011.
  16. 16. Xue, Q., Heindel, T.J., Fox, R.O., “A CFD Model for Biomass Fast Pyrolysis in Fluidized-Bed Reactors,” Chemical Engineering Science, 66(11): 2440–2452, 2011.
  17. 17. Law, D., Jones, S.T., Heindel, T.J., and Battaglia, F. “A Combined Numerical and Experimental Study of Hydrodynamics for an Air-Water External Loop Airlift Reactor,” ASME Journal of Fluids Engineering, 133(2): 021301 (8 pages), 2011.
  18. 18. Zhu, H., Shanks, B.H., Choi, W., and Heindel, T.J., “Effect of Functionalized MCM41 Nanoparticles on Syngas Fermentation,” Biomass and Bioenergy, 34(11): 1624-1627, 2010.
  19. 19. Jones, S.T., and Heindel, T.J., “Hydrodynamic Considerations in an External Loop Airlift Reactor with a Modified Downcomer,” Industrial & Engineering Chemistry Research, 49(4): 1931–1936, 2010.
  20. 20. Min, J., Drake, J.B., Heindel, T.J., and Fox, R.O., “Experimental Validation of CFD Simulations of a Lab-Scale Fluidized-Bed Reactor with and without Side-Gas Injection,” AIChE Journal, 56(6): 1434-1446, 2010.
  21. 21. Deza, M., Franka, N.P., Battaglia, F., and Heindel, T.J., “CFD Modeling and X-ray Imaging of Biomass in a Fluidized Bed,” Journal of Fluids Engineering, 131(11): Paper 111303, 2009.
  22. 22. Franka, N.P., and Heindel, T.J., “Local Time-Averaged Gas Holdup in a Fluidized Bed with Side Air Injection using X-ray Computed Tomography,” Powder Technology, 193: 69-78, 2009.
  23. 23. Zhu, H., Shanks, B.H., and Heindel, T.J., “Effect of Electrolytes on CO-Water Mass Transfer,” Industrial & Engineering Chemistry Research, 48(6): 3206-3210, 2009.
  24. 24. Zhu, H., Shanks, B.H., and Heindel, T.J., “Enhancing CO-Water Mass Transfer by Functionalized MCM41 Nanoparticles,” Industrial & Engineering Chemistry Research, 47(21): 7881-7887, 2008.
  25. 25. Law, D., Battaglia, F., and Heindel, T.J., “Model Validation for Low and High Superficial Gas Velocity Bubble Column Flows,” Chemical Engineering Science, 63(18): 4605-4616, 2008.
  26. 26. Ford, J.J., Heindel, T.J., Jensen, T.C., and Drake, J.B., “X-ray Computed Tomography of a Gas-Sparged Stirred-Tank Reactor,” Chemical Engineering Science, 63(8): 2075-2085, 2008.
  27. 27. Heindel, T.J., Gray, J.N., and Jensen, T.C., “An X-ray System for Visualizing Fluid Flows,” Flow Measurement and Instrumentation, 19(1): 67-78, 2008.
  28. 28. Ungerman, A.D., and Heindel, T.J., “Carbon Monoxide Mass Transfer for Syngas Fermentation in a Stirred Tank Reactor with Dual Impeller Configurations,” Biotechnology Progress, 23(3): 613-620, 2007.
  29. 29. Do, Y.S., Smeenk, J., Broer, K.M., Kisting, C.J., Brown, R.C., Heindel, T.J., Bobik, T.A., and DiSpirito, A.A., “Growth of Rhodospirillum rubrum in Synthesis Gas: Catalyst of CO and H2 and poly-β-hydroxyalkanoate,” Biotechnology and Bioengineering, 97(2): 279-286, 2007.
  30. 30. Tang, C. and Heindel, T.J., “Effect of Fiber Length Distribution on Gas Holdup in a Cocurrent Gas-Liquid-Fiber Bubble Column,” Chemical Engineering Science, 62(5): 1408-1417, 2007.
  31. 31. Kapic, A., Jones, S.T., and Heindel, T.J., “Carbon Monoxide Mass Transfer in a Syngas Mixture,” Industrial & Engineering Chemistry Research, 45(26): 9150-9155 (2006).
  32. 32. Tang, C., and Heindel, T.J., “Estimating Gas Holdup via Pressure Difference Measurements in a Cocurrent Bubble Column,” International Journal of Multiphase Flow, 32(7): 850-863 (2006).
  33. 33. Kapic, A., and Heindel, T.J., “A General Scale-Up Correlation for Gas-Liquid Mass Transfer in a Stirred-Tank Reactor,” Transactions of IChemE, Part A, Chemical Engineering Research and Design, 84(A3) 239-245 (2006).
  34. 34. Riggs, S.S., and Heindel, T.J., “Measuring Carbon Monoxide Gas-Liquid Mass Transfer in a Stirred Tank Reactor for Syngas Fermentation,” Biotechnology Progress, 22(3): 903-906 (2006).
  35. 35. Tang, C., and Heindel, T.J., “Quantifying the Fiber Effect on Gas Holdup in a Cocurrent Air-Water-Fiber Bubble Column,” The Canadian Journal of Chemical Engineering, 84(2) 198-208 (2006).
  36. 36. Tang, C., and Heindel, T.J., “A Gas Holdup Model for Cocurrent Air-Water-Fiber Bubble Columns,” Chemical Engineering Science, 61(10) 3299-3312 (2006).
  37. 37. Su, X., Hol, P.D., Talcott, S.M., Staudt, A.K. and Heindel, T.J., “The Effect of Bubble Column Diameter on Gas Holdup in Fiber Suspensions,” Chemical Engineering Science, 61(10) 3098-2104 (2006).
  38. 38. Su, X., and Heindel, T.J., “Gas Holdup Models for Gas-Liquid-Fiber Semi-Batch Bubble Columns,” Industrial & Engineering Chemistry Research, 44(24) 9355-9363 (2005).
  39. 39. Tang, C., and Heindel, T.J., “Gas-Liquid-Fiber Flow in a Cocurrent Bubble Column,” AIChE Journal, 51(10): 2665-2674 (2005).
  40. 40. Tang, C., and Heindel, T.J., “Effect of Fiber Type on Gas Holdup in a Cocurrent Air-Water-Fiber Bubble Column,” Chemical Engineering Journal, 111(1) 21-30 (2005).
  41. 41. Su, X., and Heindel, T.J., “Effect of Perforated Plate Open Area on Gas Holdup in Rayon Fiber Suspensions,” ASME Journal of Fluids Engineering, 127(4): 816-823 (2005).
  42. 42. Hubers, J.L., Striegel, A.C., Heindel, T.J., Gray, J.N., and Jensen, T.C., “X-ray Computed Tomography in Large Bubble Columns,” Chemical Engineering Science, 60(22): 6124-6133 (2005).
  43. 43. Hol, P.D., and Heindel, T.J., “Local Gas Holdup Variation in a Fiber Slurry,” Industrial & Engineering Chemistry Research, 44(13), 4778-4784 (2005).
  44. 44. Su, X., and Heindel, T.J., “Gas Holdup Behavior in Nylon Fiber Suspensions,” Industrial & Engineering Chemistry Research, 43(9), 2256-2263 (2004).
  45. 45. Giorges, A.T.G., White, D.E., and Heindel, T.J., “Concentric Mixing of Hardwood Pulp and Water,” TAPPI Journal, 3(5): Online Exclusive (2004). (http://www.tappi.org/content/pdf/journal/04MAYTJ.pdf).
  46. 46. Tang, C., and Heindel, T.J., “Time-Dependent Gas Holdup Variation in an Air-Water Bubble Column,” Chemical Engineering Science, 59(3) 623-632 (2004).
  47. 47. Heindel, T.J., “A Review of Gas Flows in Fiber Suspensions,” TAPPI Journal, 2(11): Online Exclusive (2003). (http://www.tappi.org/journals/99516603NOV22.pdf)
  48. 48. Su, X., and Heindel, T.J., “Gas Holdup in Fiber Suspensions,” The Canadian Journal of Chemical Engineering, 81(3-4): 412-418 (2003).
  49. 49. Bloom, F., and Heindel, T.J., “Modeling Flotation Separation in a Semi-Batch Process,” Chemical Engineering Science, 58(2): 353-365 (2003).
  50. 50. Bloom, F., and Heindel, T.J., “On the Structure of Collision and Detachment Frequencies in Flotation Models,” Chemical Engineering Science, 57(13): 2467-2473 (2002).
  51. 51. Heindel, T.J., “Bubble Size in a Cocurrent Fiber Slurry,” Industrial & Engineering Chemistry Research, 41(3): 632-641 (2002).
  52. 52. Heindel, T.J., Campo, A., Ramadhyani, S., and Incropera, F.P., “Measurement of Heat Transfer Coefficients Between Turbulent Liquid Jets and a Radially Finned Heated Disk Placed at the Bottom of an Open Vertical Circular Cavity,” Heat and Mass Transfer, 38(7-8): 577-587 (2002).
  53. 53. Heindel, T.J., “Gas Flow Regime Changes in a Bubble Column Filled With a Fiber Suspension,” The Canadian Journal of Chemical Engineering, 78(5): 1017-1022 (2000).
  54. 54. Garner, A.E., and Heindel, T.J., “The Effect of Fiber Type on Bubble Size,” Journal of Pulp and Paper Science, 26(7): 266-269 (2000).
  55. 55. Heindel, T.J., and Hodgson, K.T., “A Laboratory Study of OCC Flotation for Removal of Model Stickie Particles,” TAPPI Journal, 83(7): 58 (2000).
  56. 56. Schulz, T.H., and Heindel, T.J., “A Study of Gas Holdup in a Cocurrent Air/Liquid/Fiber System,” TAPPI Journal, 83(6): 58-59 (2000).
  57. 57. Bloom, F., and Heindel, T.J., “An Approximate Analytical Expression for the Probability of Attachment by Sliding,” Journal of Colloid and Interface Science, 218: 564-577 (1999).
  58. 58. Heindel, T.J., and Garner, A.E., “Effect of Fiber Consistency on Bubble Size,” Nordic Pulp and Paper Research Journal, 14(2): 171-178 (1999).
  59. 59. Heindel, T.J., and Bloom, F., “Exact and Approximate Expressions for Bubble-Particle Collision,” Journal of Colloid and Interface Science, 213: 101-111 (1999).
  60. 60. Heindel, T.J., “Bubble Size Measurements in a Fiber Suspension,” Journal of Pulp and Paper Science, 25:3 104-110 (1999).
  61. 61. Heindel, T.J., “Fundamentals of Flotation Deinking,” TAPPI Journal, 82(3): 115-124 (1999).
  62. 62. Heindel, T.J., and Monefeldt, J.L., “Observations of the Bubble Dynamics in a Pulp Suspension Using Flash X-ray Radiography,” TAPPI Journal, 81(11): 149-158 (1998).
  63. 63. Bose, F., Ghiaasiaan, S.M., and Heindel, T.J., “Hydrodynamics of Dispersed Liquid Droplets in Agitated Synthetic Fibrous Slurries,” Industrial & Engineering Chemistry Research, 36(11): 5028-5036 (1997).
  64. 64. Bloom, F., and Heindel, T.J., “A Theoretical Model of Flotation Deinking Efficiency,” Journal of Colloid and Interface Science, 190: 182-197 (1997).
  65. 65. Bloom, F., and Heindel, T.J., “Mathematical Modelling of the Flotation Deinking Process,” Mathematical and Computer Modelling, 25(5): 13-58 (1997).
  66. 66. Heindel, T.J., Incropera, F.P., and Ramadhyani, S., “Enhancement of Natural Convection Heat Transfer from an Array of Discrete Heat Sources,” International Journal of Heat and Mass Transfer, 39(3): 479-490 (1996).
  67. 67. Heindel, T.J., Ramadhyani, S., and Incropera, F.P., “Conjugate Natural Convection from an Array of Protruding Heat Sources,” Numerical Heat Transfer, Part A: Applications, 29(1): 1-18 (1996).
  68. 68. Heindel, T.J., Ramadhyani, S., and Incropera, F.P., “Laminar Natural Convection in a Discretely Heated Cavity: I Assessment of Three-Dimensional Effects,” Journal of Heat Transfer, 117(4): 902-909 (1995).
  69. 69. Heindel, T.J., Incropera, F.P., and Ramadhyani, S., “Laminar Natural Convection in a Discretely Heated Cavity: II Comparisons of Experimental and Theoretical Results,” Journal of Heat Transfer, 117(4): 910-917 (1995).
  70. 70. Heindel, T.J., Ramadhyani, S., and Incropera, F.P., “Conjugate Natural Convection from an Array of Discrete Heat Sources: Part 1 – Two- and Three-Dimensional Model Validation,” International Journal of Heat and Fluid Flow, 16(6): 501-510 (1995).
  71. 71. Heindel, T.J., Ramadhyani, S., and Incropera, F.P., “Conjugate Natural Convection from an Array of Discrete Heat Sources: Part 2 – A Numerical Parametric Study,” International Journal of Heat and Fluid Flow, 16(6): 511-518 (1995).
  72. 72. Heindel, T.J., Ramadhyani, S., and Incropera, F.P., “Assessment of Turbulence Models for Natural Convection in an Enclosure,” Numerical Heat Transfer, Part B, 26(2): 147-172 (1994).
  73. 73. Heindel, T.J., Incropera, F.P., and Ramadhyani, S., “Liquid Immersion Cooling of a Longitudinal Array of Discrete Heat Sources in Protruding Substrates: I. Single-Phase Convection,” Journal of Electronic Packaging, 114: 55-62 (1992).
  74. 74. Heindel, T.J., Ramadhyani, S., and Incropera, F.P., “Liquid Immersion Cooling of a Longitudinal Array of Discrete Heat Sources in Protruding Substrates: II. Forced Convective Boiling,” Journal of Electronic Packaging, 114: 63-70 (1992).

Book Chapters

  1. 1. Heindel, T.J., and Bloom, F., “Dispersed Air Flotation Theory,” In Encyclopedia of Surface and Colloid Science, 2nd Edition, Vol. 3, P. Somasundaran, Ed., Taylor & Francis, New York, 1787-1800 (2006).
  2. 2. Heindel, T.J., and Bloom, F., “Theory of Dispersed Air Flotation,” In Encyclopedia of Surface and Colloid Science, A. Hubbard, Ed., Marcel Dekker, New York, 5298-5311 (2002).
  3. 3. Heindel, T.J., “Flotation Deinking Fluid Mechanics Research at the Institute of Paper Science and Technology,” In Paper Recycling Challenge: Vol. III – Process Technology, M.R. Doshi, and J.M. Dyer, Eds., Appleton, WI, Doshi & Associates, Inc., 243-256 (1998).

Conference Papers

  1. 1. Escudero, D., and Heindel, T.J., “Characterizing Jetting in an Acoustic Fluidized Bed using X-Ray Computed Tomography,” Proceedings of the ASME 2014 Fluids Engineering Division Summer Meeting, August 3-7, 2014, Chicago, Illinois Paper FEDSM2014-21161, 2014.
  2. 2. Kingston, T.A., and Heindel, T.J., “Characterizing Granular Mixing Homogeneity at Various Dimensionless Mixing Lengths in a Double Screw Mixer,” Proceedings of the ASME 2014 Fluids Engineering Division Summer Meeting, August 3-7, 2014, Chicago, Illinois Paper FEDSM2014-21048, 2014.
  3. 3. Hall, B.R., Morgan, T.B., Heindel, T.J., Meyer, T.R, and Kastengren, A.L., “High-speed radiographic spray imaging with a broadband tube source,” AIAA Science and Technology Forum and Exposition 2014, National Harbor, MD, January 13-17, 2014.
  4. 4. Escudero, D. and Heindel, T.J., “X-ray CT Imaging to Investigate the Effects of Acoustic Vibrations on Fluidized Bed Hydrodynamics,” Proceedings of ASME 2013 Fluids Engineering Division Summer Meeting, July 7-11, 2013, Incline Village, Nevada, USA, Paper FEDSM2013-16094, 2013.
  5. 5. Kingston, T.A., and Heindel, T.J., “Visualization and Composition Analysis to Quantify Mixing in a Screw Pyrolyzer,” Proceedings of ASME 2013 Fluids Engineering Division Summer Meeting, July 7-11, 2013, Incline Village, Nevada, USA, Paper FEDSM2013-16054, 2013.
  6. 6. Morgan, T.B, Halls, B.R., Meyer, T.R., and Heindel, T.J., “A High-Speed X-ray Detector System for Noninvasive Fluid Flow Measurements,” Proceedings of ASME 2013 Fluids Engineering Division Summer Meeting, July 7-11, 2013, Incline Village, Nevada, USA, Paper FEDSM2013-16427, 2013.
  7. 7. Halls, B.R., Heindel, T.J., Meyer, T.R., Lightfoot, M.D., Danczyk, S.A., Schumaker, S.A., Roy, S., Gord, J.R., Kastengren, A.L., “Quantitative X-ray imaging of liquid mass distribution in optically dense sprays,” ILASS2013, 5-8 May 2013
  8. 8. Halls, B.R., Radke, C.D., Heindel, T.J., Johry, W.F., Zhang, S., Meyer, T.R., Lightfoot, M.D., Danczyk, S.A., Schumaker, S.A., Roy, S., Gord, J.R., and Kastengren, A.L., “Characterization of Three-Dimensional Dense Spray Visualization Techniques,” 51st AIAA Aerospace Sciences Meeting, Dallas/Ft. Worth, TX, Jan. 7-10, 2013.
  9. 9. Sundararajan, S., Heindel, T.J., Ganapathysubramanian, G., and Subramaniam, S., “Women in Mechanical Engineering: A Departmental Effort to Improve Recruitment, Retention, and Engagement of Women Students,” 2012 ASEE Annual Conference and Exposition, June 10-13, San Antonio TX, Paper AC 2012-5501.
  10. 10. Escudero, D. and Heindel, T.J., “Acoustic Field Effects on Minimum Fluidization Velocity in a 3D Fluidized Bed,” Proceedings of ASME 2012 Fluids Engineering Division Summer Meeting,  July 8-12, 2012, Puerto Rico, USA, Paper FEDSM2012-72041, 2012.
  11. 11. Halls, B.R., Heindel, T.J., Meyer, T.R., and Kastengren, A.L., “X-ray Spray Diagnostics: Comparing Sources and Techniques,” 50th AIAA Aerospace Sciences Meeting, Jan. 9-12, 2012, Nashville, TN, AIAA Paper 2012-1055, 2012.
  12. 12. Brett, G., Riveland, M, Jensen, T.C., and Heindel, T.J., “Cavitation from a Butterfly Valve: Comparing 3D Simulations to 3D X-ray Computed Tomography Flow Visualization,” Proceedings of ASME-JSME-KSME Joint Fluids Engineering Conference, July 24-29, 2011, Hamamatsu, Shizuoka, JAPAN, Paper AJK2011-33003, 2011.
  13. 13. Drake, J.B., Kenney, A.L., Morgan, T.B., and Heindel, T.J., “Developing Tracer Particles for X-ray Particle Tracking Velocimetry,” Proceedings of ASME-JSME-KSME Joint Fluids Engineering Conference, July 24-29, 2011, Hamamatsu, Shizuoka, JAPAN, Paper AJK2011-11009, 2011.
  14. 14. Morgan, T.B., and Heindel, T.J., “X-ray Particle Tracking of Dense Particle Motion in a Vibration-Excited Granular Bed,” Proceedings of the 2010 ASME International Mechanical Engineering Congress and Exposition, November 12-18, 2010, Vancouver, British Columbia, Canada, Paper IMECE2010-39106, ASME Press, New York, 2010.
  15. 15. Keller, N.K., and Heindel, T.J., “Characterizing Mixing in a Two-Component Fluidized Bed,” Proceedings of ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting and 8th International Conference on Nanochannels, Microchannels, and Minichannels, August 2-4, 2010, Montreal, Canada, Paper FEDSM2010-ICNMM2010-30369, ASME Press, New York, 2010.
  16. 16. Kadic, E., and Heindel, T.J., “Hydrodynamic Considerations in Bioreactor Selection,” Proceedings of ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting and 8th International Conference on Nanochannels, Microchannels, and Minichannels, August 2-4, 2010, Montreal, Canada, Paper FEDSM2010-ICNMM2010-30367, ASME Press, New York, 2010.
  17. 17. Kadic, E., and Heindel, T.J., “Mixing Considerations in Stirred Tank Bioreactors When Using Fluid Property Altering Microorganisms,” Proceedings of ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting and 8th International Conference on Nanochannels, Microchannels, and Minichannels, August 2-4, 2010, Montreal, Canada, Paper FEDSM2010-ICNMM2010-30366, ASME Press, New York, 2010.
  18. 18. Escudero, D., and Heindel, T.J., “Bed Height and Material Density Effects on Minimum Fluidization Velocity in a Cylindrical Bed,” Proceedings of ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting and 8th International Conference on Nanochannels, Microchannels, and Minichannels, August 2-4, 2010, Montreal, Canada, Paper FEDSM2010-ICNMM2010-30220, ASME Press, New York, 2010.
  19. 19. Escudero, D.R., and Heindel, T.J., “Bed Height and Material Density Effects on Minimum Fluidization Velocity in a Cylindrical Fluidized Bed,” Proceedings of the 7th International Conference on Multiphase Flow, May 30 – June 4, 2010, Tampa, FL, Paper No. 1674, 2010.
  20. 20. Keller, N.K., Fox, R.O., and Heindel, T.J., “Mixing Observations in a Two Component Fluidized Bed,” Proceedings of the 7th International Conference on Multiphase Flow, May 30 – June 4, 2010, Tampa, FL, Paper No. 1673, 2010.
  21. 21. Heindel, T.J., Jensen, T.C., Drake, J.B., McCormick, N., and Riveland, M.L., “3D X-ray CT Imaging of Cavitation from a Butterfly Valve,” Proceedings of the 7th International Conference on Multiphase Flow, May 30 – June 4, 2010, Tampa, FL, Paper No. 1746, 2010.
  22. 22. Gavi, E., Heindel, T.J., and Fox, R.O., “Modeling Fluidization in Biomass Gasification Processes”, Proceedings of the 7th International Conference on Multiphase Flow, May 30 – June 4, 2010, Tampa, FL, Paper No. 1956, 2010.
  23. 23. DiVall, M., and Heindel, T.J., “X-ray Flow Visualization of a Circular Hydraulic Jump,” Proceedings of the 2009 ASME Fluids Engineering Division Summer Meeting, August 2-9, 2009, Vail, CO, Paper FEDSM2009-78035, ASME Press, New York, 2009.
  24. 24. Drake, J.B., and Heindel, T.J., “Repeatability of Gas Holdup in a Fluidized Bed using X-ray Computed Tomography,” Proceedings of the 2009 ASME Fluids Engineering Division Summer Meeting, August 2-6, 2009, Vail, CO, Paper FEDSM2009-78041, ASME Press, New York, 2009.
  25. 25. Drake, J.B., Tang, L., and Heindel, T.J., “X-ray Particle Tracking Velocimetry in Fluidized Beds,” Proceedings of the 2009 ASME Fluids Engineering Division Summer Meeting, August 2-6, 2009, Vail, CO, Paper FEDSM2009-78150, ASME Press, New York, 2009.
  26. 26. Deza, M., Heindel, T.J., and Battaglia, F. “Modeling a Biomass Fluidizing Bed with Side Port Air Injection,” Proceedings of the 2009 ASME Fluids Engineering Division Summer Meeting, August 2-6, 2009, Vail, CO, Paper FEDSM2009-78372, ASME Press, New York, 2009.
  27. 27. Law, D., Battaglia, F., and Heindel, T.J., “Simulating Gas-Liquid Flows in an External Loop Airlift Reactor,” Proceedings of the 2008 ASME International Mechanical Engineering Congress and Exposition, October 31 – November 6, 2008, Boston, MA, Paper IMECE2008-66379, ASME Press, New York, 2008.
  28. 28. Deza, M., Battaglia, F., and Heindel, T.J., “Approximating a Three-Dimensional Fluidized Bed with Two-Dimensional Simulations,” Proceedings of the 2008 ASME International Mechanical Engineering Congress and Exposition, October 31 – November 6, 2008, Boston, MA, Paper IMECE2008-66378, ASME Press, New York, 2008.
  29. 29. Drake, J.B., Franka, N.P., and Heindel, T.J., “X-ray Particle Tracking Velocimetry for Applications in Fluidized Beds,” Proceedings of the 2008 ASME International Mechanical Engineering Congress and Exposition, October 31 – November 6, 2008, Boston, MA, Paper IMECE2008-66224, ASME Press, New York, 2008.
  30. 30. Deza, M., Battaglia, F., and Heindel, T.J., “A Validation Study for the Hydrodynamics of Biomass in a Fluidized Bed,” Proceedings of the 2008 ASME Fluids Engineering Division Summer Meeting, August 10-14, 2008, Jacksonville, FL, Paper FEDSM2008-55158, ASME Press, New York, 2008.
  31. 31. Franka, N.P., Drake, J.B., and Heindel, T.J., “Minimum Fluidization Velocity and Gas Holdup in Fluidized Beds with Side Port Air Injection,” Proceedings of the 2008 ASME Fluids Engineering Division Summer Meeting, August 10-14, 2008, Jacksonville, FL, Paper FEDSM2008-55100, ASME Press, New York, 2008.
  32. 32. Meyer, T.R., Schmidt, J.B., Nelson, S.M., Drake, J.B., Janvrin, D.M., and Heindel, T.J., “Three-Dimensional Spray Visualization using X-Ray Computed Tomography,” ILASS Americas: 21st Annual Conference on Liquid Atomization and Spray Systems, Orlando, FL, May 18-21, 2008.
  33. 33. Law, D., Battaglia, F., and Heindel, T.J., “Stability Issues for Gas-Liquid Flows in Bubble Columns,” Proceedings of the 2007 ASME International Mechanical Engineering Congress and Exposition, November 10-16, Seattle, WA, ASME Press, Paper IMECE2007-43517, 2007.
  34. 34. Deza, M., Battaglia, F., and Heindel, T.J., “Computational Modeling of Biomass in a Fluidized Bed Gasifier,” Proceedings of the 2007 ASME International Mechanical Engineering Congress and Exposition, November 10-16, Seattle, WA, ASME Press, Paper IMECE2007-43097, 2007.
  35. 35. Morgan, T.B.., and Heindel, T.J., “Observations of Dense Particle Motion in a Vibration-Excited Granular Bed,” Proceedings of the 2007 ASME International Mechanical Engineering Congress and Exposition, November 10-16, Seattle, WA, ASME Press, Paper IMECE2007-42306, 2007.
  36. 36. Franka, N.P., Heindel, T.J., and Battaglia, F., “Visualizing Cold-Flow Fluidized Beds with X-rays,” Proceedings of the 2007 ASME International Mechanical Engineering Congress and Exposition, November 10-16, Seattle, WA, ASME Press, Paper IMECE2007-43073, 2007.
  37. 37. Ford, J., Heindel, T.J., and Jensen, T.C., “Imaging a Gas-Sparged Stirred-Tank Reactor with X-rays,” Proceedings of the 2007 ASME/JSME Fluids Engineering Division Summer Meeting, July 30 – August 2, 2007, San Diego, Paper FEDSM2007-37022, ASME Press, New York, 2007.
  38. 38. Heindel, T.J., T.C. Jensen, and J.N. Gray, “Visualizing Fluid Flows with X-rays,” Proceedings of the 2007 ASME/JSME Fluids Engineering Division Summer Meeting, July 30 – August 2, 2007, San Diego, Paper FEDSM2007-37023, ASME Press, New York, 2007.
  39. 39. Jones, S.T., and Heindel, T.J., “The Influence of External Loop Airlift Bioreactor Configuration on Bioreactor Hydrodynamics,” Proceedings of the 2007 ASABE Annual International Meeting, June 17 – 20, 2007, Minneapolis, MN, Paper Number: 077069, ASABE Press, St. Joseph, MI, 2007.
  40. 40. Jones, S.T., and Heindel, T.J., “A Review of Dissolved Oxygen Concentration Measurement Methods for Biological Fermentations,” Proceedings of the 2007 ASABE Annual International Meeting, June 17 – 20, 2007, Minneapolis, MN, Paper Number: 077117, ASABE Press, St. Joseph, MI, 2007.
  41. 41. Law, D., Battaglia, F., and Heindel, T.J., “Numerical Simulations of Gas-Liquid Flow Dynamics in Bubble Columns,” Proceedings of the 2006 ASME International Mechanical Engineering Congress and Exposition, November 5-10, Chicago, ASME Press, Paper IMECE2006-13544, 2006.
  42. 42. Tang, C. and Heindel, T.J., “Similitude Analysis for Gas-Liquid-Fiber Flows in Cocurrent Bubble Columns,” Proceedings of the 2006 ASME Fluids Engineering Division Summer Meeting and Exhibition, July 17-20, 2006, Miami, Paper FEDSM2006-98096 ASME Press, New York, 2006.
  43. 43. Jones, S.J., and Heindel, T.J., “The Effect of a Modified Downcomer on the Hydrodynamics in an External-Loop Airlift Reactor,” Proceedings of the 2006 ASME Fluids Engineering Division Summer Meeting and Exhibition, July 17-20, 2006, Miami, Paper FEDSM2006-98011, ASME Press, New York, 2006.
  44. 44. Heindel, T.J., “Updating Mechanical Engineering Measurements and Instrumentation – A Case Study,” Proceedings of the 2006 ASEE Annual Conference & Exposition, June 18-21, Chicago, ASEE Press, Paper 2006-856 (2006).
  45. 45. Muff, D.J., Heindel, T.J., and Sundararajan, S. “Demonstrating Electromagnetic Noise in an Undergraduate Measurement and Instrumentation Course,” Proceedings of the 2006 ASEE Annual Conference & Exposition, June 18-21, Chicago, ASEE Press, Paper 2006-863 (2006).
  46. 46. Talcott, S.M., and Heindel, T.J., “Gas Holdup in Opaque Cellulose Fiber Slurries,” Proceedings of the 2005 ASME Fluids Engineering Division Summer Meeting and Exhibition, June 19-23, Houston, TX, Paper FEDS2005-77043, ASME Press, New York, 2005.
  47. 47. Heindel, T.J., Hubers, J.L., Jensen, T.C., Gray, J.N., and Striegel, A.C., “Using X-rays for Multiphase Flow Visualization,” Proceedings of the 2005 ASME Fluids Engineering Division Summer Meeting and Exhibition, June 19-23, Houston, TX, Paper FEDS2005-77359, ASME Press, New York, 2005
  48. 48. Su, X., and Heindel, T.J., “Effect of Gas Distributor on Gas Holdup in Fiber Suspensions,” Proceedings of the 2004 ASME Heat Transfer/Fluids Engineering Summer Conference, July 11-15, Charlotte, NC, Paper HT-FED2004-56222, ASME Press, New York, 2004.
  49. 49. Tang, C., and Heindel, T.J., “Gas Holdup in a Cocurrent Air-Water-Fiber Bubble Column,” Proceedings of the 2004 ASME Heat Transfer/Fluids Engineering Summer Conference, July 11-15, Charlotte, NC, Paper HT-FED2004-56220, ASME Press, New York, 2004.
  50. 50. Heindel, T.J., and Omberg, S., “Gas Bubble Size in a Synthetic Fiber Slurry,” 4th International Conference on Multiphase Flow, New Orleans, May 27-June 1, 2001.
  51. 51. McHugh, J., Hodgson, K., and Heindel, T.J., “Quantification of Stickies Removal from OCC by Dispersed Air Flotation,” 2001 TAPPI Pulping Conference, November 4-7, Seattle, WA (2001).
  52. 52. Ashley, C.R., and Heindel, T.J., “Visualizing Air Bubbles in Pulp Suspensions Common to Recycling Operations,” TAPPI 99 Proceedings, TAPPI Press, Atlanta, GA, 617-632, (1999).
  53. 53. Gupta, P., Hodgson, K.T., Emery, A.E., and Heindel, T.J., “Characterization of Stickie Contaminants from OCC Recycle Mills,” 1998 TAPPI Pulping Conference, TAPPI Press, Atlanta, GA, 1323-1333 (1998).
  54. 54. Heindel, T.J., and Monefeldt, J.L., “Flash X-ray Radiography for Visualizing Gas Flows in Opaque Liquid/Fiber Suspensions,” FEDSM’97, ASME Press, New York, On CD (1997).
  55. 55. Heindel, T.J., and Bloom, F., “New Measures for Maximizing Ink Particle Removal in a Flotation Cell,” 1997 TAPPI Recycling Symposium, Atlanta, GA, TAPPI Press, 101-113 (1997).
  56. 56. Heindel, T.J., Incropera, F.P., and Ramadhyani, S., “Heat Transfer Enhancement from Arrays of Discrete Heat Sources,” Process, Enhanced, and Multiphase Heat Transfer, R.M. Manglik, and A.D. Kraus, Eds., Begell House, Inc., New York, 207-216 (1996).
  57. 57. Heindel, T.J., Ramadhyani, S., and Incropera, F.P., “Conjugate Natural Convection from an Array of Discrete Heat Sources,” Heat Transfer with Combined Modes, D.E. Beasley, and K.D. Cole, Eds., ASME HTD-Vol. 299, New York, ASME, 51-62 (1994).
  58. 58. Heindel, T.J., Ramadhyani, S., Incropera, F.P., and Campo, A., “Surface Enhancement of a Heat Source Exposed to a Circular Liquid Jet with Annular Collection of the Spent Fluid,” Topics in Heat Transfer, HTD-Vol. 206-2, 111-118 (1992).

Invited Presentations

  1. 1. Heindel, T.J., “Using X-rays to Visualize Multiphase Flows,” presented to the Department of Mechanical and Industrial Engineering ME Graduate Seminar Series, University of Iowa, April 3, 2014, Iowa City, IA.
  2. 2. Heindel, T.J., “Understanding Fluidized Bed Hydrodynamics Through X-ray Flow Visualization,” presented to the Fluidization Research Center and Gasification Group Seminar, Department of Chemical and Biological Engineering Seminar Series, University of British Columbia, October 18, 2012, Vancouver, BC, Canada.
  3. 3. Heindel, T.J., “Using X-rays to Visualize Multiphase Flows,” presented to the Department of Chemical and Biological Engineering Seminar Series, University of British Columbia, October 4, 2012, Vancouver, BC, Canada.
  4. 4. Heindel, T.J., “3D X-ray Flow Visualization to Characterize Multiphase Flows,” presented to the Department of Chemical Engineering, Missouri University of Science and Technology, November 29, 2011, Rolla, MO.
  5. 5. Heindel, T.J., “Developing Tracer Particles for X-ray Particle Tracking Velocimetry,” keynote presented on July 25, 2011, at the ASME-JSME-KSME Joint Fluids Engineering Conference 2011, July 24-29, 2011, Hamamatsu, Shizuoka, JAPAN.
  6. 6. Heindel, T.J., “Characterizing Fluidized Bed Hydrodynamics using 3D X-ray Imaging,” presented on September 10, 2010, at the National Energy Technology Laboratory (NETL), Morgantown, WV.
  7. 7. Heindel, T.J., “Characterizing Fluidized Bed Hydrodynamics using X-ray Flow Visualization,” presented on September 9, 2010, at the Notre Dame AME 2010-2011 Colloquium, Notre Dame, South Bend, IN.
  8. 8. Heindel, T.J. (and others in our COP research team), “Fluidized Bed Modeling and Validation for Gasification and Pyrolysis,” presented on February 12, 2010, at ConocoPhillips, Bartlesville, OK.
  9. 9. Heindel, T.J., “3D X-ray Flow Visualization of Fluidized Beds,” presented on January 27, 2010, at the National Renewable Energy Laboratory (NREL), Golden, CO.
  10. 10. Heindel, T.J., “3D X-ray Flow Visualization of Fluidized Beds,” presented on September 23, 2009, at the Rutgers ME Seminar Series, Piscataway, NJ.
  11. 11. Heindel, T.J., “CT Imaging of Cavitation off a Butterfly Valve,” presented on July 22, 2009, at the Fisher Controls Lunch and Learn Series, Marshalltown, IA.
  12. 12. Heindel, T.J., “Measurement Systems in Graduate Student Research,” presented on September 22, 2008, at the UW-Platteville Measurement Systems Class, Platteville, WI.
  13. 13. Heindel, T.J., “Recruiting at ISU,” presented on July 31, 2008, at the KIEWIT 2008 Mid-Year HR Manager Meeting, Dallas, TX.
  14. 14. Heindel, T.J., “Visualizing Multiphase Flows with X-rays,” presented on June 12, 2008, at GE Nuclear in Wilmington, NC.
  15. 15. Heindel, T.J., “Visualizing Fluid Flows with X-rays,” presented on May 23, 2007, at ConocoPhillips in Bartlesville, OK.
  16. 16. Heindel, T.J., “Multiphase Flow Visualization using X-rays,” presented at the Completion Engineering Association Fall 2006 meeting, San Antonio, TX, September 28, 2006.
  17. 17. Heindel, T.J., “X-rays for Multiphase Flow Visualization,” presented at Schlumberger Oilfield Services, Inc., Houston, TX, March 14, 2006.
  18. 18. Heindel, T.J., “Visualizing Fluid Flow with X-rays,” presented at a Fisher Controls Seminar, Marshalltown, IA, January 24, 2006.
  19. 19. Heindel, T.J., “Visualizing Fluid Flow with X-rays,” presented at the P&G Fluids Flow Chapter Community of Practice Meeting, Cincinnati, OH, November 17, 2005.
  20. 20. Heindel, T.J., “Visualizing Fluid Flow with X-rays,” presented at the ASME Central Iowa Chapter Meeting, Ames, IA, October 25, 2005.
  21. 21. Heindel, T.J., “Visualizing Multiphase Flows,” presented at the Kimberly-Clark Corporation Extrapolations Seminar Series, Neenah, WI, September 10, 2004.
  22. 22. Heindel, T.J., “Gas/Liquid/Fiber Flow Research at IPST” presented to the University of Western Michigan Paper Science and Engineering Current Topics Course, Kalamazoo, MI, September 9, 1998.
  23. 23. Heindel, T.J., “An Overview of Flotation Deinking Fluid Mechanics” presented to Beloit Research and Development, Pittsfield, MA, February 6, 1998.
  24. 24. Heindel, T.J., “Multiphase Flow Research at IPST” presented to the University of Western Michigan Paper Science and Engineering Current Topics Course, Kalamazoo, MI, October 15, 1997.
  25. 25. Heindel, T.J., “Bubble Size and Its Importance to Flotation Deinking” presented at the Weekly Heat Transfer Seminar Series at Purdue University, West Lafayette, IN, January 23, 1997.
  26. 26. Heindel, T.J., “Flotation Deinking Fluid Mechanics” presented to Great Northern Paper, Inc., East Millinocket, ME, January 8, 1997.
  27. 27. Heindel, T.J., “Flotation Deinking Fluid Mechanics” presented at the Weyerhaeuser Technical Center, Federal Way, WA, December 11, 1996.
  28. 28. Heindel, T.J., “The Effect Recycling has on Fiber Properties” presented at the “Buy Recycled” Procurement Conference and Exposition, Sponsored by the U.S. Conference of Mayors, Atlanta, GA, September 6-7, 1995.

Conference Abstracts and Technical Presentations

  1. 1. Cruz, M., Escudero, D.R., and Heindel, T.J., “Minimum Fluidization Velocity Under Acoustic Excitation,” 2014 Iowa NSF EPSCoR Annual Meeting, Ames, IA, July 22, 2014.
  2. 2. Whitemarsh, E.A., and Heindel, T.J., “Probe Effects on the Local Gas Holdup Conditions within a Fluidized Bed,” 2014 Iowa NSF EPSCoR Annual Meeting, Ames, IA, July 22, 2014.
  3. 3. Mangler, J., Morgan, T.B., and Heindel, T.J., “Quantifying Particle-Particle Mixing in Hopper-Silo Flows,” 2014 Iowa NSF EPSCoR Annual Meeting, Ames, IA, July 22, 2014.
  4. 4. Robinson, T.R., Morgan, T.B., and Heindel, T.J., “Using Virtual Reality to Visualize the 3D Pathline of Individual Particles in a Double Screw Mixer,” AIChE 2014 Annual Meeting, Atlanta, GA, November 16-21, 2014, Abstract # 370825.
  5. 5. Escudero, D.R., and Heindel, T.J., “Jetting Characteristics in an Acoustic Fluidized Bed Using X-ray Computed Tomography,” AIChE 2014 Annual Meeting, Atlanta, GA, November 16-21, 2014, Abstract # 367343.
  6. 6. Kingston, T.A., and Heindel, T.J., “Using X-Rays to Track the 3D Pathline of Individual Particles in a Double Screw Mixer,” AIChE 2014 Annual Meeting, Atlanta, GA, November 16-21, 2014, Abstract # 359514.
  7. 7. Kingston, T.A., and Heindel, T.J., “Video Analysis Techniques to Visualize Particle-Particle Mixing,” AIChE 2013 Annual Meeting, San Francisco, CA, November 3-8, 2013, Abstract #309920.
  8. 8. Kingston, T.A., and Heindel, T.J., “Optimizing Screw Mixer Effectiveness Using Composition and Statistical Analysis Techniques,” AIChE 2013 Annual Meeting, San Francisco, CA, November 3-8, 2013, Abstract #325040.
  9. 9. Halls, B.R., Morgan, T.B., Heindel, T.J., Meyer, T.R., “High-Speed Radiographic X-ray Spray Imaging using Broadband Tube Source,” Gordon Research Conference, Waterville Valley, New Hampshire, 14-17 August 2013.
  10. 10. Escudero, D.R., and Heindel, T.J., “Minimum Fluidization Velocity in a 3D Fluidized Bed Modified with an Acoustic Field,” presented at the AIChE 2012 Annual Meeting, Pittsburgh, PA, October 28 – November 2, 2012, Abstract #268538.
  11. 11. Heindel, T.J., and Drake, J.B., “Using X-rays to Visualize 3-D Hydrodynamic Structures in Fluidized Beds,” presented at the 2012 62nd Canadian Chemical Engineering Conference, Vancouver, BC, Canada, October 14-17, 2012.
  12. 12. Halls, B.R., Radke, C., Heindel, T.J., Lohry, W.F., Zhang, S., Kastengren, A.L., and Meyer, T.R., “Evaluation of Advanced Diagnostics for Visualization of Dense Spray Breakup Processes,” Spring Technical Meeting of the Central States Section of the Combustion Institute, Dayton, Ohio, April 22-24, 2012.
  13. 13. Keller, N.K., Bai, W., Fox, R.O., and Heindel, T.J., “Quantifying Mixing and Segregation in a Fluidized Bed with a Particle Segregation Number,” presented at the AIChE 2011 Annual Meeting, October 16-21, 2011, Minneapolis, MN. Abstract #225015.
  14. 14. Bai, W., Heindel, T.J., and Fox, R.O., “Segregation and the Solid-Solid Drag Term,” presented at the AIChE 2011 Annual Meeting, October 16-21, 2011, Minneapolis, MN. Abstract #225078.
  15. 15. Xue, Q., Heindel, T.J., and Fox, R.O., “Simulating Biomass Fast Pyrolysis In Fluidized-Bed Reactors for Bio-Oil Production,” presented at the AIChE 2011 Annual Meeting, October 16-21, 2011, Minneapolis, MN. Abstract #225126.
  16. 16. Xue, Q., Heindel, T.J., and Fox, R.O., “A CFD Model for Biomass Pyrolysis in Fluidized-bed Reactors,” presented at the 63rd Annual Meeting of the APS Division of Fluid Dynamics, November 21-23, 2010, Long Beach, CA.
  17. 17. Keller, N.K., and Heindel, T.J., “Quantifying Mixing and Segregation in a Binary Granular System using 3D X-ray Imaging,” presented at the AIChE 2010 Annual Meeting, November 7-12, 2010, Salt Lake City, UT, Abstract #186883.
  18. 18. Funke, C.S., and Heindel, T.J., “Measuring Jet Penetration in a 3D Bubbling Fluidized Bed,” presented at the AIChE 2010 Annual Meeting, November 7-12, 2010, Salt Lake City, UT, Abstract #186891.
  19. 19. Xue, Q., Heindel, T.J., and Fox, R.O., “Implementation and validation of a kinetic model in multi-fluid model for modelling biomass pyrolysis in fluidized-bed reactors,” presented at the Symposium on Thermo and Catalytic Sciences for Biofuels and Biobased Products (TCS2010), September 21-23, 2010, Ames, IA, 2010.
  20. 20. Keller, N.K., and Heindel, T.J., “Biomass Mixing and Segregation in a Fluidized Bed,” presented at the AIChE 2009 Annual Meeting, November 8-13, 2009, Nashville, TN, Abstract #161074.
  21. 21. Gavi, E., Drake, J.B., Min, J., Heindel, T.J., and Fox R.O., “Modeling Fluidized Beds for Application to Biomass Systems,” presented at the AIChE 2009 Annual Meeting, November 8-13, 2009, Nashville, TN.
  22. 22. Franka, N.P., and Heindel, T.J., “Jetting Observations in a Cold-Flow Fluidized Bed,” presented at the AIChE 2008 Annual Meeting, November 16-21, 2008 Philadelphia, PA, Abstract #125416.
  23. 23. Battaglia, F., Deza, M., and Heindel, T.J., “Numerical Simulations of a Biomass Fluidizing Bed with Side Port Air Injection,” presented at the APS Fluids Division Meeting, San Antonio, TX, Nov. 23-26, 2008.
  24. 24. Zhu, H., Shanks, B.H., and Heindel, T.J., “Enhancing CO-Water Mass Transfer with MCM41 Nanoparticles and Electrolytes,” poster presented at the AIChE 2008 Annual Meeting, November 16-21, 2008 Philadelphia, PA, Abstract #124029.
  25. 25. Min, J., Drake, J.B., Fox, R.O., and Heindel, T.J., “CFD Modeling of Cold-Flow Fluidized Beds and Validation with X-ray Computed Tomography,” presented at the AIChE 2008 Annual Meeting, November 16-21, 2008 Philadelphia, PA, Abstract #122514.
  26. 26. Drake, J.B., Min, J., Fox, R.O., and Heindel, T.J., “Validating Fluidized Bed Hydrodynamic Simulations,” poster presented at the 2008 BioBased Industry Outlook Conference, September 7-10, Ames, IA, 2008.
  27. 27. Kadic, E., and Heindel, T.J., “A Summary of Gas-Liquid Mass Transfer in Stirred-Tank Bioreactors,” poster presented at the 2008 BioBased Industry Outlook Conference, September 7-10, Ames, IA, 2008.
  28. 28. Battaglia, F., Deza, M., Franka, N.P., and Heindel, T.J., “Computational and Experimental Studies of Fluidized Beds for Biomass Gasification”, presented at the 2007 American Physical Society, Division of Fluid Dynamics, November 18-20, Salt Lake City, UT, 2007.
  29. 29. Ford, J., Heindel, T.J., and Jensen, T.C., “Imaging a Gas-Sparged Stirred-Tank Reactor with X-rays,” Presented at the 2007 ASME/JSME Fluids Engineering Division Summer Meeting, July 30 – August 2, 2007, San Diego, CA.
  30. 30. Heindel, T.J., T.C. Jensen, and J.N. Gray, “Visualizing Fluid Flows with X-rays,” Presented at the 2007 ASME/JSME Fluids Engineering Division Summer Meeting, July 30 – August 2, 2007, San Diego, CA.
  31. 31. Tang, C. and Heindel, T.J., “Similitude Analysis for Gas-Liquid-Fiber Flows in Cocurrent Bubble Columns,” Presented at the 2006 ASME Fluids Engineering Division Summer Meeting and Exhibition, July 17-20, 2006, Miami, FL.
  32. 32. Heindel, T.J., “Updating Mechanical Engineering Measurements and Instrumentation – A Case Study,” Presented at the 2006 ASEE Annual Conference & Exposition, June 18-21, Chicago.
  33. 33. Muff, D.J., Heindel, T.J., and Sundararajan, S. “Demonstrating Electromagnetic Noise in an Undergraduate Measurement and Instrumentation Course,” Presented at the 2006 ASEE Annual Conference & Exposition, June 18-21, Chicago.
  34. 34. Ungerman, A.J., and Heindel, T.J., “Mass Transfer Measurements for Syngas Fermentation; Mass Transfer Enhancement,” poster presented at the Growing the Bioeconomy Conference, Ames, Iowa, August 29-30, 2005.
  35. 35. Heindel, T.J., Gray, J.N., and Jensen, T.C., “Multiphase Flow Visualization Using X-rays,” poster presentation at the 7th International Conference on Gas-Liquid and Gas-Liquid-Solid Reactor Engineering, Strasbourg, France, August 21-24, 2005.
  36. 36. Hubers, J.L., Striegel, A.C., Heindel, T.J., Gray, J.N., and Jensen, T.C., “X-ray Computed Tomography in Large Bubble Columns,” poster presentation at the 7th International Conference on Gas-Liquid and Gas-Liquid-Solid Reactor Engineering, Strasbourg, France, August 21-24, 2005.
  37. 37. Heindel, T.J., “Mass Transfer Measurements for Syngas Fermentation,” presented at the Summer BBC Meeting, June 29, 2005, Newton, IA.
  38. 38. Hubers, J.L., Striegel, A.C., Heindel, T.J., Gray, J.N., and Jensen, T.C., “An X-ray Imaging System for Large-scale Multiphase Flows,” poster presented at the 2004 AIChE Annual Meeting, Austin, TX, November 7-12, 2004.
  39. 39. Heindel, T.J., Muff†, D.J., and Dautremont, J.J. “Innovations in Mechanical Engineering Measurements and Instrumentation,” poster presented at the Miller Faculty Award Luncheon, Ames, IA, November 8, 2004
  40. 40. Heindel, T.J., Do, Y.S., DiSpirito, A.A., Kapic†, A., and Brown, R.C., “Replacing Fossil Fuel-Based Products Through Syngas Fermentation,” poster presented at the Annual BBC Symposium, Iowa City, IA, October 27-28, 2004.
  41. 41. Heindel, T.J., “An X-ray System for 3-D Imaging of Large-Scale Multiphase Flows,” presented at the Fall CNDE I/U Sponsors Meeting, Ames, IA, October 19, 2004.
  42. 42. Riggs, S. and Heindel, T.J., “Mass Transfer Rates for Syngas Fermentation” poster presented at the 26th Symposium on Biotechnology for Fuels and Chemicals, May 9-12, 2004, Chattanooga, TN.
  43. 43. Brown, R.C., Heindel, T.J., DiSpirito, A.A., and Nikolau, B.J., “Production of Biopolymers and Hydrogen via Syngas Fermentation”, poster presented at the National ACS Meeting, Anaheim, California, March 28 – April 1, 2004.
  44. 44. Heindel, T.J., Brown, R.C., Hargrove, M.S., Smeenk, J., and DiSpirito, A.A., “Mass Transfer Measurements for Syngas Fermentation” poster presented at the Iowa BIOconference, Ames, IA, March 7-8, 2004.
  45. 45. Heindel, T.J., DiSpirito, A.A., Brown, R.C., and Nikolau, B.J., “Fiber to Biobased Products via Syngas Fermentation” poster presented at the Iowa BIOconference, Ames, IA, March 7-8, 2004.
  46. 46. Brown, R.C., Heindel, T.J., DiSpirito, A.A., and Nikolau, B.J., “Production of biopolymers and hydrogen via syngas fermentation,” Annual Meeting of the Institute of Biological Engineering, Fayetteville, Arkansas, January 9-11, 2004.
  47. 47. Heindel, T.J., Gray, J.N., and Jensen, T.C., “A Non-Invasive Imaging System for Large-Scale Multiphase Flows” poster presentation at the 6th International Conference on Gas-Liquid and Gas-Liquid-Solid Reactor Engineering, Vancouver, B.C., Canada, August 17-20, 2003.
  48. 48. Heindel, T.J., DiSpirito, A.A., Brown, R.C., and Nikolau, B.J., “Biobased Products via Syngas Fermentation” poster presented at the 25th Symposium on Biotechnology for Fuels and Chemicals, May 4-7, 2003, Breckenridge, CO.
  49. 49. Heindel, T.J., Brown, R.C., DiSpirito, A.A., Hargrove, M.S., Nikolau, B.J., Norton, G., “Biobased Products Through Syngas Fermentation” poster presented at the CSET IPRT review, April 11, 2003.
  50. 50. Heindel, T.J., Gray, J.N., and Jensen, T.C., “Development of an X-ray System for Noninvasive 3-D Imaging for Large-Scale Multiphase Flows” poster presented at the CNDE NSF Industry/University Program Annual Review, October 22, 2002.
  51. 51. Heindel, T.J., and Brown, R.C., “Bioprocessing of Synthesis Gas to Produce Fuels and Chemicals – Phase I: Measuring CO and H2 Mass Transfer Rates in Anaerobic Bioreactors” presented at the FY2002 IPRT Research Seed-Funding Program Presentations, June 24, 2002.
  52. 52. Heindel, T.J., and McDonough, T.J., “Bubble Size Control to Improve Oxygen-Based Bleaching” presented at the DOE Agenda 2020 Environmental Performance Research Progress Review Meeting, AF&PA Headquarters, Washington, DC, June 6-7, 2000.
  53. 53. Heindel, T.J., “Approach Flow Systems” update presented to the Papermaking Project Advisory Committee, Institute of Paper Science and Technology, Atlanta, GA, March 8-9, 2000.
  54. 54. Heindel, T.J., “Flotation Deinking Fluid Mechanics” update presented to the Recycle Project Advisory Committee, Institute of Paper Science and Technology, Atlanta, GA, March 6-7, 2000.
  55. 55. Heindel, T.J., “Flotation Deinking Fluid Mechanics” update presented to the Recycle Project Advisory Committee Subgroup, Washington, DC, March 5, 2000.
  56. 56. Heindel, T.J., “Flotation Deinking Fluid Mechanics” update presented to the Recycle Project Advisory Committee, Institute of Paper Science and Technology, Atlanta, GA, October 19-20, 1999.
  57. 57. Heindel, T.J., “Approach Flow Systems” presented to the Papermaking Project Advisory Committee, Institute of Paper Science and Technology, Atlanta, GA, September 30, 1999.
  58. 58. Heindel, T.J., and Hodgson, K.T., “Characterization and Removal of Stickie Contaminants from OCC Mills” update presented to the Containerboard Group of AF&PA, Institute of Paper Science and Technology, Atlanta, GA, June 2-3, 1999.
  59. 59. Heindel, T.J., “Gas Flow Characteristics in Fiber Suspensions” presented at the Institute of Paper Science and Technology Friday Seminar Series, Atlanta, GA, April 2, 1999.
  60. 60. Heindel, T.J., “Flotation Deinking Fluid Mechanics” update presented to the Recycle Project Advisory Committee, Institute of Paper Science and Technology, Atlanta, GA, March 22, 1999.
  61. 61. Heindel, T.J., “Flotation Deinking Fluid Mechanics” update presented to the Recycle and Surface and Colloid Science Project Advisory Committee, Institute of Paper Science and Technology, Atlanta, GA, October 6, 1998.
  62. 62. Heindel, T.J., and Hodgson, K.T., “Characterization and Removal of Stickie Contaminants from OCC Mills” update presented to the Containerboard Group of AF&PA, Institute of Paper Science and Technology, Atlanta, GA, September 23-24, 1998.
  63. 63. Heindel, T.J., “Gas/Liquid/Fiber Flow Research at IPST” presented to the TAPPI Fluid Mechanics Committee at the 1998 TAPPI Engineering Conference, Miami, FL, September 14, 1998.
  64. 64. Heindel, T.J., and Hodgson, K.T., “Characterization and Removal of Stickie Contaminants from OCC Mills” update presented to the Containerboard Group of AF&PA, Institute of Paper Science and Technology, Atlanta, GA, June 3-4, 1998.
  65. 65. Heindel, T.J., “Flotation Deinking Fluid Mechanics” update presented to the Recycle and Surface and Colloid Science Project Advisory Committee, Institute of Paper Science and Technology, Atlanta, GA, March 23-24, 1998.
  66. 66. Heindel, T.J., “Flotation Deinking Fluid Mechanics” update presented to the Recycle and Surface and Colloid Science Project Advisory Committee, Institute of Paper Science and Technology, Atlanta, GA, September 30, 1997.
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