CEP: September 2017

Coupling the traditional computational fluid dynamics (CFD) approach to model the fluid phase with the discrete element method (DEM) to model the particles creates a powerful numerical method to study multiphase particulate flows. See how CFD-DEM can be applied to modeling gas-solid multiphase systems. Other topics in this issue include human factors in alarm response, back to basics: boilers, and troubleshooting wastewater treatment.



Editorial

CEP on the Go

Last month I wrote about some of the personal benefits of volunteering — such as better emotional and physical health, a lower risk of cognitive impairment as you age, and a perception of having more time on your hands — as well as the positive impacts volunteering can have on your career. And last month’s Your AIChE Benefits article (Aug. 2017, p. 75) explained the concept of micro-volunteering — i.e., quick, easy tasks that do not require a large investment of time.

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CFD-DEM: Modeling the Small to Understand the Large

September
2017
Computational Methods
Raymond Cocco, William D. Fullmer, Peiyuan Liu, Dr. Christine Hrenya
Coupling the traditional computational fluid dynamics (CFD) approach to model the fluid phase with the discrete element method (DEM) to model the particles creates a powerful numerical method to study multiphase particulate flows.

Plug the Holes in the Swiss Cheese Model

September
2017
Safety
Todd Stauffer, P.E., Nicholas P. Sands, P.E., David Strobhar, P.E.
Stop using operator error as an excuse. Apply human factors considerations to improve your alarm system and help operators respond to alarms effectively.

Boiler Project Fundamentals

September
2017
Back To Basics
Jason L. Bell
This article describes several variables to consider when selecting a steam boiler — from choosing a boiler configuration to understanding boiler water chemistry.
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