Piloting Bioreactors for Agitation Scale-Up
Gregory T. Benz
This article offers guidance on how to design appropriate experiments to measure scalable data for agitation in both aerobic and anaerobic bioreactors.
Process Design & Development
Produce Reliable Models with Efficient Meshing
Christian Wollblad, Ed Fontes, Henrik von Schenck, Phil Byrne
Improve your modeling skills to construct accurate, effective meshes that simulate or optimize a process in less time.
Reduce Your Compressed Air Costs
Bill Scales, Ron Marshall
Annual operating expenses for compressed air systems can exceed the equipment’s purchase price. Follow these seven steps to implement efficiency measures that yield cost reductions.
Industrial Chemical Process Design
AccessEngineering
Understand Freeze-Condensation Vacuum Systems
James R. Lines
Placing a freeze-condenser ahead of an ejector system offers several advantages. Here's a look at what such units can do.
Narrowing Down the Equipment Choices for Particle Size Reduction
Herman Purutyan
Properties of the feed, specifications for the product, and processing and industry considerations all play a role in selecting the optimum crusher or mill.
Screw Feeders: A Guide to Selection and Use
Hermann J. Feise, Steven W. Couch, Thomas L. Krieger, Timothy Bell
Gain insight as to what screw feeder is best for your application. Plus, learn how to size, specify and test screw feeders.
Consider Aerosol Formation in Heat Transfer Fluid Selection
Kiran Krishna, M. Sam Mannan, William J. Rogers
In addition to flash point, fire point and auto-ignition temperature, the fluid’s tendency to form a mist should be considered when evaluating fluid safety.
A Six Sigma Approach to Evaluating Vacuum Filtration Technologies
Barry A. Perlmutter
The appropriate testing procedures help direct the selection of vacuum filtration equipment and ensure optimum equipment operation.
Applying the Paradigm Case Method for Flowmeter Selection
Jesse Yoder
This effective approach to flowmeter selection involves a step-by-step method that begins by matching the application with the flowmeter(s). Then, a series of criteria are applied to narrow the selection.
Eliminate Iteration from Flow Problems
John D. Barry
This article introduces a novel approach to solving flow and pipe-sizing problems based on two new dimensionless quantities that are independent of line size and flow.
Understand the Fundamentals of Centrifugal Pumps
J. Howard Kelly, P.E.
Efficient and reliable pumps can significantly improve a plant’s bottom line. This article reviews important concepts that a chemical engineer must understand and the factors that need to be considered when selecting radial-flow centrifugal pumps.
Understand Thermodynamics to Improve Process Simulations
David Hill, Fred C. Justice, P.E.
Selecting a thermodynamic model is an important step in process simulation — one that many engineers overlook. This overview of applied thermodynamics can help you choose the right model for your process.
Designing Pneumatic Conveying Systems
Eric Maynard
Use this 9-step methodology to design and operate a reliable and cost-effective system to efficiently transport materials.
Classify Particles Using Fluidized Beds
Kamal Adham
Here is an easy way to remove fine fractions from solids, with a minimum loss of the coarse fraction.
Squeeze More Out of Complex Columns
Piyush Shah
These distillation setups can cut capital and operating costs by up to 30%, and increase separation efficiency. Here is a straightforward method for evaluation.
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