Expert Details

Expert in Mixing, Pilot Plants, Scaleup, Atomization, Agglomeration, Evaporation, Heat Exchangers

Expert ID: 720194 North Carolina, USA

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Expert has extensive knowledge of mixing operations needed in the chemical, petrochemical, and biochemical industries. His knowledge includes the proper selection of effective mixing geometries and the power requirements needed by a mixing unit in either laminar or turbulent applications. He is proficient in mixing and mixing times by impeller, jet, feed streams, and gas sparging in batch, fed-batch and continuous-flow systems, which may be either Newtonian or non-Newtonian fluids and includes viscoelastic fluids. He teaches one- and three-day in-house short courses on mixing.

Expert has significant consulting experience on pilot plant studies and scaleup methods. He provides basic concepts and practical advice on how to perform pilot plant studies and consults on improving and justifying a pilot plant study. Other key issues covered in his work include establishing viable process objectives, applying design heuristics, determining optimum conditions, and translating clients' processes between different scales. He teaches one- and three-day in-house short courses on pilot plant studies, has written a book on the subject, has reviewed the technical literature on methodology used, and has reviewed scaling procedures and methods of several companies.


Expert is proficient in multiphase processing for the chemical process industries (CPI). He has conducted studies in the areas of solid suspension, sludge suspension, gas-liquid contacting, and liquid-liquid dispersion. Other studies have included void minimization in composites, mass transfer in aerated agitated tanks, power consumption in a mixer, impeller flooding, distributor design, airlift pumps, and draft tubes.

Expert also has significant knowledge and consulting experience in grinders and crushers, filtration and drying and dryers as would be used in the production of fine chemicals. He can teach one- to three-day short courses in these areas.


Additive color mixing involves color measurement and mixing. In his research, he has studied the measurement of color and written several papers on the subject. He specialized in mixing earlier in his career.

Central to the process of adhesive manufacturing is mixing. Mixing times and production rates in industry can be improved. Another aspect is the rheological characterization of the material and making sure that mixing does not destroy or significantly change the rheology.

Agitation is the subject of his two books involving designing industrial mixing processes and fluid mixing in agitated tanks.

Expert is a Professor of Chemical Engineering who has taught through the curriculum except for kinetics. He has also educated himself in all areas of unit operations, including solids.

Mixing is often central to chemical reactor design. Understanding how material meets to react becomes a highly significant concern on scaleup. Laboratory studies do not provide such insight.

Solid mixing is very similar to liquid mixing. In some cases, such as free flowing powders, the same theory and methods can be applied. When non-free flowing powders, semi-solids, and pastes are mixed, more direct mixing methods are needed. Some direct mixing methods are co-kneaders, extruders and mullers.


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Expert reviewed powder-liquid mixing methods for many many companies, and suggested improvements to improve profitability.He reviewed screening operations and made suggestions to improve operations. Expert reviewed chemical reactor designs for numerous companies.
He suggested improvements for safety and operation.He has given short courses (in-house) on the following topics: Mixing, Scale-up, Paste and Powder Mixing, Atomization, Materials of Construction, Flotation, Filtration, Heat Exchangers, Drying, Agglomeration, Evaporation, Pumps, and Crushing and Grinding

Expert may consult nationally and internationally, and is also local to the following cities: Charlotte, North Carolina - Raleigh, North Carolina - Greensboro, North Carolina - Durham, North Carolina - Winston Salem, North Carolina - Fayetteville, North Carolina - Cary, North Carolina - High Point, North Carolina - Gastonia, North Carolina - Roanoke, Virginia

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Education

Year Degree Subject Institution
Year: 1977 Degree: PhD Subject: Fluid Mechanics Institution: Ohio State University - Chemical Engineering
Year: 1974 Degree: MS Subject: Fluid Mechanics Institution: Ohio State University - Chemical Engineering
Year: 1972 Degree: BS Subject: Chemical Engineering Institution: University of Pittsburgh

Work History

Years Employer Title Department Responsibilities
Years: 1989 to Present Employer: Undisclosed Title: Professor Department: Chemical Engineering Responsibilities: He teaches fluid mechanics, plant design, process scaleup, food processing, and unit operations. Unit operations include mixing, drying, filtration, atomization, flotation, heat exchangers, agglomeration, evaporation, pumps, piping, and size reduction.
Years: 1988 to 1989 Employer: DuPont and Westinghouse Contractors Title: Research Engineer Department: SRS: Department of Energy Responsibilities: He was involved with improving various processes at SRS.
Years: 1985 to 1988 Employer: Texas A & M University Title: Associate Professor Department: Mechanical Engineering Responsibilities: He taught fluid mechanics and heat transfer. He also did research in the areas of seals, turbomachinery, mixing, and turbulence.
Years: 1979 to 1985 Employer: Texas A & M University Title: Associate & Assistant Professor Department: Chemical Engineering Responsibilities: He taught fluid mechanics and heat transfer. He also did research in the areas of seals, turbomachinery, mixing, and turbulence.
Years: 1977 to 1979 Employer: University of South Carolina Title: Assistant Professor Department: Chemical Engineering Responsibilities: He taught fluid mechanics and heat transfer. He also did research in the areas of seals, turbomachinery, mixing, and turbulence.
Years: 1972 to 1977 Employer: Ohio State University Title: Teaching Assistant Department: Chemical Engineering Responsibilities: He was a teaching assistant for a number of courses, including heat and mass transfer, unit operations and fluid mechanics.

International Experience

Years Country / Region Summary
Years: 1992 to Present Country / Region: Amsterdam, NL Summary: Expert teaches short courses in the areas of atomization and pilot plant and process scaleup for the Center for Professional Advancement, New Brunswick, NJ.

Career Accomplishments

Associations / Societies
He is a member of AIChE and NAMF.
Licenses / Certifications
He is a Registered P.E. in Texas, though not current in the annual fee.
Professional Appointments
He is the Technical Editor for Chemical Processing magazine.
Awards / Recognition
He received the Outstanding Alumni Award from the College of Engineering, Ohio State University. The College of Engineering awards this distinction once a year.
Publications and Patents Summary
He has authored two professional books, 42 refereed publications, and numerous non-refereed publications.

Additional Experience

Expert Witness Experience
Expert has served as an expert or as an expert witness three times.
Training / Seminars
He has taught many short courses in the following areas: Mixing, Dryers, Paste and Powder Mixing, Process Scaleup, Atomization, Materials of Construction, Flotation, Filtration, Heat Exchangers, Agglomeration, Evaporation, Crushing and Grinding, and Pumps and Piping.

Vendor Selection
He has conducted mixing equipment sourcing for various companies.
Marketing Experience
Expert has periodicically worked as a sales representative.

Fields of Expertise

batch mixing, liquid mixing, mixing, fluid mixing, gas-liquid mass transfer, homogenization, homogenizer, immiscible liquid, mixer, mixing equipment, particle suspension (mixture), batch process, batch reactor, continuous mixing, continuous reactor, flow visualization, reactor mixing, Newtonian flow, non-Newtonian liquid flow, pilot plant scale-up, pilot plant studying, scale-up, chemical pilot plant development, liquid state mechanics, liquid-liquid mass transfer, dispersion, dissolution, fine particle dispersing, flooding, hydrodynamics, dispersion technology, liquid-liquid mass transfer operation, hydromechanics, hydrostatics, crushing, filtration, fine chemical, grinding (comminution), drying, additive color mixing, adhesive manufacturing, agitation, bulk mixing, blending, chemical engineering, chemical plant design, chemical process design, evaporation, heat transfer, chemical plant layout, unit operations, chemical reactor scale-up, solid mixing, gas dispersion, immiscible liquid agglomeration, bulk drug, chemical industry, latex mixing, concrete mixing, cement mixing, static mixer, agglomeration, chemical plant operation, perforated-pipe distributor, food research and development, slurry mixing, tablet manufacturing, chemical plant start-up, coalesce, fine chemical intermediate, chemical intermediate, chemical plant management, chemical manufacturing facility evaluation, writing, gas jet turbulent mixing control, food processing technology, chemical plant, emulsifier, emulsion (mixture), polymer mixing, chemical processing, dry fine powder agglomeration, food engineering, liquid homogenizing, mixed flow, standard, turbulent flow, sparging, plant biotechnology, food processing

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