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Bandrau RamaraoB. V. Ramarao

Professor

310 Walters Hall
(315) 470-6513
(315) 470-6593 (fax)
bvramara@syr.edu

Research Interests

  • Fluid Particle Separations- Aerosol Filtration, Hydrosol Filtration,
  • Consolidation and dewatering of pulp Suspensions with applications in papermaking, Colloidal and Surface Phenomena.
  • Transport and thermodynamics of moisture in paper and other cellulosic materials.
  • De-inking of recycled pulps using flotation processes.
  • Digital Image Processing, Image Analysis, Digital Signal Processing.

Courses

  • PSE467 Papermaking Wetend Chemistry
  • PSE371 Fluid Mechanics
  • PSE477 Process Control

Experience

  • Professor, SUNY College of Environmental Science & Forestry, 1997- current.
  • Associate Director, Empire State Paper Research Institute, 2003-current.
  • Acting Chair, Department of Paper and Bioprocess Engineering, SUNY College of Environmental Science & Forestry, 1999-2000.Associate Professor, SUNY College of Environmental Science & Forestry. 1992 -1997.
  • Senior Fellow, Department of Chemical Engineering, National University of Singapore, Singapore (1995-1996).
  • Adjunct Professor, Department of Chemical Engineering, Syracuse University. 1988 -.
  • Assistant Professor, SUNY College of Environmental Science & Forestry, 1988-1992.
  • Research Associate, Department of Chemical Engineering, Syracuse University. 1986-1988.

Education

  • Ph. D. Chemical Engineering. Clarkson University, Potsdam NY 1986.
  • M. S. Chemical Engineering. Clarkson University, Potsdam NY 1982.
  • B. S. Chemical Engineering. University of Madras, India. 1980.

Memberships, Activities, Honors & Awards

  • Member, National Working Group, Nanotechnology in the Forest Products Industry. TAPPI.
  • Program Committee Member & Session Chair. ‘Biomimetics and self-assembly’. Nanotechnology in the Forest Products Industry Conference, Atlanta GA 2006.
  • AIChE, Programming Chair, Forest Products Division, Group 17. 2005-2007.
  • Session Co-Chair. ‘Nanotechnology in the Forest Products Industry.’ AIChE Annual Meeting, Cincinnati OH 2005.
  • 9th World Filtration Congress. American Filtration & Separation Society. New Orleans, LA: Session Chair:: Paper Making and Rheology of Suspensions. 2004.
  • Tappi International Paper Physics Conference – Victoria BC, Canada. 2003. Member, Meeting Program Committee.
  • Tappi & PAPTAC – Progress in Paper Physics – An International Seminar. Syracuse, NY 2002Program Chair.
  • Session Chair. ‘Fluid Mechanics and Rheology in the Forest Products Industry.’ AIChE Annual Meeting, Reno, NV (2001).
  • Session Chair. 'Transport Processes in the Forest Products Industry.' AIChE Annual Meeting, Dallas TX (1999).
  • Session Chair. ‘Transport Processes in the Forest Products Industry.’ AIChE Annual Meeting, Miami Beach, FL (1998).
  • Program Chair. Symposium on Moisture Interactions with Paper Materials. Empire State Paper Research Institute, Syracuse, NY. 1998.
  • Member, Tappi – Since 1988. (Technical Association of the Pulp and Paper Industry, USA).
  • Member, American Institute of Chemical Engineers – Since 1986; Forest Products Division.
  • NASA - Space Alliance Technology Opportunity Program (SATOP). Advised a small business on filter media. SATOP listed this as a success story and was extensively carried in the newsmedia in Florida. SATOP Award: Best partner in SATOP Alliances awarded to SUNY ESF, 2003.
  • University of Madras, India. Dr. M. A. Govinda Rau Gold Medal and Alagappa Chettiar Memorial Prize Award for student graduating at the top of the B. Tech. Class with best academic record. (Out of approximately 150 students).

Patents & Inventions

  • B. V. Ramarao. ‘A method to determine pulp specific surface area, specific volume and compressibility characteristics on-line.’ U. S. Patent, 5,954,922. (1999). Successfully commercialized with many units operating at industrial locations. This has spawned further modified instruments, which are in successful operation at pulp and paper industry and research center locations in North America, Europe, China and South America.

Publications of B. V. Ramarao

Refereed Journal Articles

47. A. Massoquette, S. Lavrykov, B. V. Ramarao, A. Goel and S. Ramaswamy. ‘The effect of pulp refining on lateral and transverse moisture diffusion in paper.’ Tappi J., 4, 12, 3-8, 2005.

46. B. V. Ramarao and C. Tien. ‘Analysis of fine particle migration and retention in cake filtration.’ Ind. Engng. Chem. Research., 44, 1200-1210, 2005.

45. A. Massoquete, S. Lavrykov and B. V. Ramarao. ‘Non-Fickian nature of moisture diffusion in paper.’ Journal of Pulp and Paper Sci.,31, 3, 121-127, 2005.

44. S. Lavrykov and B. V. Ramarao. ‘Axi-symmetric pore-fiber model for transport processes in paper.’ Nordic Pulp and Paper Res. J., 19, 3, (2004).

43. S. Lavrykov and B. V. Ramarao. ‘Transient hygroexpansion of paper: Experimental Results and Mathematical Model’, Nordic Pulp and Paper Res. J., 19, 2, 183-90 (2004).

42. S. Ramaswamy, M. Gupta, A. Goel, U. Aaltosalmi, M. Kataja, A. Koponen and B. V. Ramarao. ‘The 3 D structure of fabric and its relationship to liquid and vapor transport.’ Coll. Surf., A: Phys. Chem. Eng. Asp., 241, 323-333, (2004).

41. B. V. Ramarao, A. Massoquete, S. Lavrykov and S. Ramaswamy. ‘Moisture transport in paper materials in the hygroscopic range and characteristics of diffusion parameters.’ A review. DRT - Drying Technology, 21, 10, 2007-2056, (2003).

40. Chi Tien and B. V. Ramarao. ‘Validation of a new filtration technique for dewaterability characterization. Comments.’ AIChE Journal , 48(10), 2417-2418 (2002).

39. R. C. Francis, S. Chaiarrekij and B. V. Ramarao. ‘Pulp bleaching by the addition of peroxide to the D2 stage and recovery of molybdates by selective ion flotation techniques.’ J. Wood Chem. Tech., 23, 2, 113-129 (2003).

38. J. Liesen, B. Hojjatie, D. Coffin, S. Lavrykov, B. V. Ramarao and H. Beckham. ‘Through- plane diffusion of moisture in paper detected by MR Imaging Techniques.’ Ind. Engng. Chem. Res., 41, 25, 6555-6565 (2002).

37. S. K. Mohan and B. V. Ramarao. ‘A comprehensive study of self-induced torque amplification in rotary viscous couplings.’ Trans. ASME, J. Tribology, 125, 110-120(2003).

36. S. Das and B. V. Ramarao. “Inversion of lime mud and papermaking pulp filtration data to determine compressibility and permeability relationships.” Sep. Pur. Technol. 28, 149-160 (2002).

35. S. Huang, A. Goel, S. Ramaswamy, B. V. Ramarao and D. Choi. “Transverse and in-plane characterization of the pore structure of paper.” APPITA Journal, 55, 3, 230-234 (2002).

34. A. Bandyopadhyay, B. V. Ramarao and S. Ramaswamy. “Transient moisture diffusion through paperboard materials.” Colloids and Surfaces A, Phys. Chem. Engng Aspects, 206, 455-467 (2002).

33. A. Bandyopadhyay, B. V. Ramarao and E. Shih. “Transient temperature, moisture and pressure fields in a paper sheet exposed to a traveling thermal pulse.” J. Imaging Sci. Tech. 45, 6, 1-14, (2001).

33. A. Goel, M. Tzanakakis, S. Huang, S. Ramaswamy, D. Choi and B. V. Ramarao. “Characterization of the Three-Dimensional Structure of Paper using X-Ray Microtomography.” Tappi J., 84, 5, 72-80 (2001).

32. A. Goel, M. Tzanakakis, S. Huang, S. Ramaswami, W. Hu, D. Choi and B. V. Ramarao. “Confocal Laser Scanning Microscopy to Visualize and Characterize the Structure of Paper.” Fundamentals and Numerical Modeling of Unit Operations in the Forest Products Industries, AIChE Symp. Ser., 324, 96, 75-80 (2000).

31. S. Chaiarrekij, H. Dhingra and B. V. Ramarao. “Deinking of Recycled Pulps by Column Flotation: Energy and Environmental Benefits.” Resources, Conservation & Recycling, 28, 219-226 (2000).

30. H. Radhakrishnan, S. G. Chatterjee and B. V. Ramarao. “Steady State Diffusion of Moisture in Paper Board.” J. Pulp Paper Sci., 26, 4, 140-144 (2000).

29. A. Bandyopadhyay, H. Radhakrishnan, B. V. Ramarao and S. G. Chatterjee. “Moisture Sorption Response of Paper Subjected to Ramp Humidity Changes: Modeling and Experiments.” Ind. Eng. Chemistry, Research, 39, 219-226 (2000).

28. R. Vengimalla, G. G. Chase and B. V. Ramarao. “Modeling of filler retention in compressible fibrous media.” Separation and Purification Technology, 15, 2, 153-161 (1999).

27. S. G. Chatterjee, B. V. Ramarao and C. Tien. ‘Water vapor sorption characteristics of a bleached kraft paperboard: A study of the hysteresis region.’ J. Pulp and Pap. Sci.23, 8, 366-374 (1997).

26. C. Tien, R. Bai and B. V. Ramarao ‘Analysis of cake growth in cake filtration. The case of fine particle retention.’ AIChE J., 43, 1, 33-44 (1997).

25. R. Vengimalla, G. G. Chase and B. V. Ramarao. ‘Filler particle retention in paper fiber beds.' Separation and Purification Tech., 11 (1), 17-26 (1997).

24. H. L. Wei, P. Kumar, B. V. Ramarao and C. Tien. ‘Drainage and Fine particle retention in forming incompressible fibrous mat.’ J. Pulp and Pap. Sci., 22, 11, J1-6 (1996).

23. B. V. Ramarao and P. Kumar. ‘A model for the gravity drainage of pulp suspensions.’ Nordic Pulp and Paper Res. J. 11, 2, 86-94 (1996).

22. P. Kumar, H. L. Wei, B. V. Ramarao and M. Doshi. ‘Application of gravity drainage models to the freeness measurement of pulp suspensions.’ Chem. Eng. Comm., 152, 287-306 (1996).

21. S. N. Chakravarti, L. R. Schroeder, J. E. Unbehend and B. V. Ramarao. ‘Changes in Thermomechanical pulp on recycling.’ Progr. Paper Recycl., 1, 62-75, (1995).

20. B. V. Ramarao and H. Makkonen. ‘Upgrading recycled fiber stocks in the pulp and paper industry.’ Waste Management Research Report, 6, 1, 3-6 (1994).

19. B. V. Ramarao and C. Tien. ‘Fine particle retention in forming fibrous media.’ AIChE Symp. Ser., 90, 302, 190-204 (1994).

18. B. V. Ramarao and C. Tien. 'Concentration profiles in aerosol flows.' International J. Multiphase Flow. 20, 3, 569-578 (1994).

17. B. V. Ramarao, C. Tien and S. Mohan. 'Calculations of single fiber efficiencies for interception and impaction with superposed Brownian motion.' J. Aerosol Science. 25, 2, 295-313 (1994).

16. B. V. Ramarao and C. Tien. ‘Inertial enrichment of concentration in aerosol flows.' J. Colloid and Interface Science, 160, 487-490 (1993).

15. S. G. Kulkarni, B. V. Ramarao, J. M. Hassett and C. Tien. 'Dynamic modeling of the sedimentation of concentrated bidispersed suspensions.' Separations Technology, 3, 1-13 (1993).

14. B. V. Ramarao and C. Tien. 'Fine particle retention in forming fibrous cakes.' Advances in Filtration and Separation Technology, American Filtration Society, Volume 7, 13-24 (1992).

13. P. Kumar and B. V. Ramarao. 'Enhanced sedimentation of fibrous suspensions with buoyant particle promoters.' Invited Paper. Chemical Engineering Communications, 108, 381-401 (1991).

12. R. F. Storms, B. V. Ramarao and R. H. Weiland. 'Low shear rate viscosity of bidispersed suspensions.' Powder Technology, 63, 3, 247-259 (1991).

11. B. V. Ramarao and C. Tien. 'Role of Basset forces in particle deposition in stagnation flows.' J. Aerosol Science, 21, 5, 597-611 (1990).

10. B. V. Ramarao and R. H. Weiland. 'Image processing and analysis of sedimenting suspensions.' Fluid Particle Separation Journal, 3, 1, 1-18 (1990).

9. W. F. Allen, B. V. Ramarao and R. H. Weiland. 'Continuous sedimentation of model suspensions promoted by rigid buoyant particles.' Separations Technology, 1, 55-62 (1990).

8. B. V. Ramarao. 'Image analysis of particle deposits in model fibrous filters.' Fluid Particle Separation Journal, 2, 2, 85-94 (1989).

7. B. V. Ramarao and C. Tien. 'Aerosol particle deposition in two dimensional stagnation point flow.' J. Aerosol Science, 20, 7, 775-785 (1989).

6. B. V. Ramarao and C. Tien. 'On the extension of mass transfer j-factor correlations to the collection efficiency of fibrous filters.' Aerosol Science & Technology, 11, 58-64 (1989).

5. B. V. Ramarao and C. Tien. 'Calculations of drag force on particle dendrites.' Aerosol Science & Technology, 8, 81-95 (1988).

4. B. V. Ramarao and C. Tien. 'Stochastic simulation of aerosol deposition in model fibrous filters.' AIChE Journal, 34, 2, 253-262 (1988).

3. R. H. Weiland, Y. P. Fessas and B. V. Ramarao. 'On instabilities arising during sedimentation of two component mixtures of solids.' J. Fluid Mechanics, 142, 383-389 (1984).

2. B. V. Ramarao and W. R. Wilcox. 'Influence of oscillatory and ramped freezing rates on off-eutectic solidification of composite materials.' J. Crystal Growth, 63, 39-46 (1983).

1. B. V. Ramarao, W. R. Wilcox and W. L. Briggs. 'Stage II initial transient in off-eutectic solidification.' J. Crystal Growth, 59, 557-564 (1982).

Refereed & Unrefereed Contributions to Books and Conference Proceedings

28. S. Lavrykov, O. L. Lyne and B. V. Ramarao. ‘A mathematical model for the transient hygroexpansion of copy paper.’ Proc. Intern. Paper Phys. Conf., PAPTAC/TAPPI, Montreal Canada, 273-278 (2003).

27. A. Massoquete, S. Lavrykov, B. V. Ramarao and S. Ramaswamy. ‘Anisotropic moisture diffusion study on refined paper.’ Proc. Intern. Paper Phys. Conf., PAPTAC/TAPPI, Montreal Canada, 253-259 (2003).

26. M. Gupta, A. Goel, S. Ramaswamy, H. Pande and B. V. Ramarao. ‘Analysis of z-directional 3 D structural characteristics of commercial paper and handsheets.’ Proc. Intern. Paper Phys. Conf., PAPTAC/TAPPI, Montreal Canada, 85-88 (2003).

25. R. Holmstad, S. Ramaswamy, A. Goel, O. W. Gregersen and B. V. Ramarao. ‘Comparison of 3D structural characteristics of high and low resolution X-Ray microtomographic images of paper and board.’ Proc. Intern. Paper Phys. Conf., PAPTAC/TAPPI, Montreal Canada, 65-70 (2003).

24. S. Ramaswamy, B. V. Ramarao, A. Goel, G. Lee, D. Choi, S. Lavrykov. ‘Theoretical and Experimental investigation on liquid penetration in porous media.’ Progr. In Paper Physics Seminar, Syracuse NY, 136-140 (2002).

23. A. Goel, S. Ramaswamy. B. V. Ramarao and A. Massoquete, D. Boley. ‘Brownian motion random walk simulations in actual 3D structures of paper and board to evaluate their transport properties.’ Progr. Pap. Physics Seminar, Syracuse NY 226-230 (2002).

22. S. Das, T. Cresson and B. V. Ramarao. “Pulp Characterization using permeability measures: Effect of Refining.” 6th International Conf. On Pulp Refining, Toronto, ON. PIRA International, Leatherhead, Surrey, England (2001).

21. S. Das, B. V. Ramarao and T. Cresson. “Pulp Drainage and Filtration: Theoretical development and comparison with experiments.” 6th International Conf. On Pulp Refining, Toronto, ON. PIRA International, Leatherhead, Surrey, England (2001).

20. S. Ramaswamy, A. Goel, D. Choi, A. Bandyopadhyay and B. V. Ramarao. “The 3 Dimensional Structure of paper and its relationship to liquid and vapor transport.” Trans. 13th Fundamental Research Symposium on Papermaking and Paper Materials, Oxford, England PIRA International, Leatherhead, Surrey, England (2001). (Refereed)

19. B. V. Ramarao, C. Tien and C. N. Satyadev. “Determination of the constitutive relationship for cakes in cake filtration by analogy with diffusion in polymeric membranes.” In “Transport Processes in Bubbles, Drops and Particles.” Eds. R. P. Chhabra and D. A. Dekee, Taylor and Francis Publishing, New York, Chapter 10, 246-279 (2002).

18. S. Chaiarrekij, H. Gupta, W. S. Amato and B. V. Ramarao. “Experimental results on deinking of recycled fibers by column flotation.” Wood and Cellulose: Building blocks for chemicals, fuels and advanced materials: SUNY ESF - Syracuse, New York, 2000.

17. B. V. Ramarao and A. Bandyopadhyay. “Transient transport models for moisture transport in paper media.” Proc. 4th International Symposium on Moisture and Creep Effects in Paper and Board. Grenoble, France, 144-160 (1999).

16. B. V. Ramarao. “Moisture sorption and transport processes in paper materials.” Review. In Adsorption and its Applications in Industry and Environmental Protection. Studies in Surface Science and Catalysis, vol. 120, 531-560 (1998). (Refereed)

15. S. G. Chatterjee and B. V. Ramarao. ‘Hysteresis in moisture sorption equilibria of a bleached kraft paperboard: Analysis and Experiments’ in ‘Proceedings of the 3rd International Symposium on Moisture and Creep Effects on Paper, Board and Containers.’ Rotorua, New Zealand 121- 133(1997).

14. B. V. Ramarao and S. G. Chatterjee. ‘Moisture sorption by paper materials under varying humidity conditions.’ In “The Fundamentals of Papermaking Materials” Transactions of the 11th Fundamental Research Symposium, Cambridge, PIRA International, Leatherhead, England, 703-749 (1997). (Refereed)

13. C. O. Maunier and B. V. Ramarao. ‘Effect of flocculation on pulp drainage characteristics.’ Proc. Tappi Eng. Conf., 2, 221-238 (1996). (Refereed)

12. H. Wei and B. V. Ramarao. ‘Characterization of pulp slurries using a novel drainage tester.’ Proc. Tappi Eng. Conf. 2, 517-523 (1996). (Refereed)

11. H. Makkonen, L. Schroeder, R. Bandaru, and S. Granzow “Separation of chemical and mechanical pulps by hydrodynamic fractionation” Proc. EcoPaperTech Conference, Helsinki, Finland 233-244 (1995).

10. B. V. Ramarao, S. G. Chatterjee, A. R. K. Eusufzai and C. Tien. ‘Moisture transport and sorption by paper under cyclic variations in humidity.’ in ‘Mechanics of Cellulosic Materials,’ Ed. R. Perkins. ASME AMD-Vol.209/MD-Vol. 60, 195-214, 1995.

9. P. Kumar and B. V. Ramarao. ‘Characterization of specific surface area, specific volume, compressibility and specific filtration resistance of papermaking pulps.’ Proc. Tappi Papermakers’ Conf., 465-488 (1995). (Refereed)

8. B. V. Ramarao, P. Kumar and C. Tien. ‘Drainage and fine particle retention in static formers.’ Proc. Tappi Eng. Conf., 2, 793-797 (1994). (Refereed)

7. H. Makkonen and B. V. Ramarao. ‘Report on Proceedings of Workshop on Energy/Environmental Issues in New York Pulp & Paper Industry.’ SUNY College of Environmental Science and Forestry, Syracuse, New York. Jan. 1994.

6. B. V. Ramarao. 'Dynamics of fine particle retention in fibrous mats.' Proceedings of TappiEngineering Conference, 1-14 (1993).

5. Ramarao, B. V. and C. Tien. ‘Fine particle retention in forming fibrous cakes.’ Advances in Filtration & Separation Technol., American Filtration Society, vol. 7, 13-24 (1992).

4. S. K. Mohan, B. V. Ramarao, C. F. Stephens, S. K. Varma and B. V. Gokul. 'Viscous couplings in 4WD vehicles: Applications of computer modeling.' SAE Technical Paper Series, Paper No. 920611 (1992). (Refereed)

3. B. V. Ramarao and C. Tien. 'Simulation of particle deposition in fluid flow.' in 'Transport processes in bubbles, drops and particles.' Ed. D. A. DeKee and R. P. Chhabra, Hemisphere Publishing. 191-246 (1991).

2. J. E. Unbehend, B. V. Ramarao, S. Faigen and R. Shridharan. 'Evaluation of settling and thickening mechanisms during paper web consolidation.' Proceedings of TAPPI Engineering Conference, 45-56 (1989). (Refereed)

1.B. Miller, B. V. Ramarao, P. T. Vasudevan and R. H. Weiland. 'Sedimentation of coal water slurries using buoyant particle promoters.' in 'Flocculation, Sedimentation and Consolidation,' Eds. P. Somasundaran and B. Moudgil, AIChE Publications NY, 285-296 (1985).

Presentations & Seminars

2005

  • “X Ray Microtomography for Paper.’ Specialty Minerals Inc., Bethlehem PA.
  • “Consolidation of fibrous media.’ Hercules Inc., Wilmington DE.
  • “X Ray Microtomography for Paper.’ International Paper Co., Corporate Technology Center, Loveland.
  • “Consolidation of fibrous media.’ International Paper Co., Corporate Technology Center, Loveland OH.
  • ‘Water interactions with fibrous materials.’ S. C. Johnson & Sons Inc., Racine WI.

2004

  • “Research in paper materials” Indian Institute of Technology, DPT, Roorkee, India.
  • “Wet-pressing of paper and its relationship to paper properties.” Weyerhaeuser Technology Center, Weyerhaeuser Company, Seattle WA.
  • “Wet pressing of paper – effect of fillers.” Specialty Minerals Inc., Research Center, Bethlehem PA.
  • “3 Dimensional structure of gypsum board determined by X Ray Microtomography techniques.” National Gypsum Company, Central Research Center, Charlotte NC.
  • “Deinking of recycled fibers by column flotation.” AIChE Annual Meeting, Austin TX..
  • “Analysis of Wet-pressing of paper.” Progress in Paper Physics Seminar, NTNU- Technical University of Norway, Trondheim, Norway.
  • “3 Dimensional structure of paper materials and their relationship to transport.” Tappi Technology Summit 04, Atlanta GA.

2003

  • “3 Dimensional structure of Fibrous Materials Determined by X Ray Microtomography Techniques and its relationship to Diffusion and Fluid Permeation Properties.” Energizer Battery Co., Westlake Research Center, Westlake, OH. (2003).
  • “3 Dimensional structure of Paper and its variation with Paper Processing.” Corporate Research Center, International Paper Co., Tuxedo NY (2003).
  • “Liquid imbibition and expression from fibrous media.’ S. C. Johnson Inc., Racine WI (2003).

2002

  • “Moisture Transport and its effects in paper materials.’ Eastman Kodak Co., Rochester NY. (2002).
  • “Electrical Properties of Paper and Their Relationship with Moisture.” Xerox Corporation, Webster NY (2002).
  • “Water movement in wicks, wipes, sponges and moisture diffusion in paper materials.’ S. C. Johnson Inc., Racine WI (2002).
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