To function properly at optimum capacity and efficiency, multi-pass trays must be designed so that the liquid and vapor flows are properly balanced. This article provides guidance on how to achieve that.
The more important question is “how much to engineer?” Use this technique to evaluate the level of engineering effort required, and justified, for a project.
Brian H. Pittenger, Herman Purutyan, Gabriel I. Tardos
Use these guidelines to avoid potential caking problems. The key steps are to select a material characterization method, identify the factors that can be feasibly controlled and conduct tests to confirm that process/handling changes yield the...
Stephen W. Maas
This comprehensive overview of what needs to go into a well-defined scope of work will be useful to chemical engineers who are new to project engineering and project management.
Robert T Jacobsen
When selecting a precious metals refiner, it’s important to first understand the basics of sampling, assaying and environmental issues, as well as the concept of leasing metal.
Christine Pagcatipunan, Rudi Schick
Use these techniques to select, troubleshoot and maintain spray nozzles for optimal results.
This article compares several common dispersion models available in the public domain and offers guidance on selecting the appropriate one for a particular release.
Jeffrey Mueller, Larry Scotchie, Kelly Seheult
The cross-functional IPT approach can be combined with a stage-gate framework and six sigma techniques to improve the effectiveness of process development efforts.
Follow these guidelines to calculate how fast a pool of spilled liquid will spread across a surface, vaporize and possibly form a flammable mixture with air.
Stephen A. Roosz
Take advantage of the Freedom of Information Act to obtain information while protecting your regulatory submissions to the extent possible.
With a better understanding of seals, their selection, material considerations, and operation requirements, users can greatly improve equipment reliability and reduce operating costs.
Jeffrey D. Kelly
Data alone is not information. Use this model to transform data into vital information for decision making.
James L. Willa
Changing maintenance and/or operating procedures can significantly increase cooling tower performance without major capital expenditures. Here are some tips for ensuring proper design and operation of major tower components.
With proper pipe support design, installation and maintenance, pipe damage should normally not develop for decades.
Philip Blosse, Monica Cardona
Determine if your bioprocess needs a sterilizing grade filter, and if so, use these guidelines to select the proper one for your application.
Miriam Lev-On , Karin Ritter. Susann Nordrum
These techniques can be used to estimate and report GHG emissions from a wide variety of diverse sources, thereby increasing global consistency.
Using this technique to determine the effective plume-chimney height for an exchanger operating in natural circulation mode.
First, prevent problems by selecting the appropriate trap and installing it properly. If problems arise, follow these guidelines for diagnosing and correcting them.
Mahmoud M. El-Halwagi, Vasiliki Kazantzi
Material reuse is often governed by the functionalities of the process streams. This new property-based technique creates a pinch diagram that identifies targets for the minimum use of fresh resources and waste discharge, and the maximum integration...