Computing and Systems Engineering

Optimizing Adsorption Process Design and Operation

Sponsored Webinar
Live Wednesday, October 29, 2014, 2:00pm-3:00pm EDT
This webinar describes new model-based approaches that allow the rapid and accurate design and operational analysis of complex adsorption cycles...

Equations for Flammability Parameters, Pmax and KG

AIChE Spring Meeting and Global Congress on Process Safety
Apr 2, 2014
The maximum pressure of gas combustion, P max , and the deflagration index, K G ,are very important flammability parameters that are used for risk...

Linking SPYRO Rigorous Stream Cracking Model

AIChE Spring Meeting and Global Congress on Process Safety
May 2, 2013
Furnace simulations are currently used in all layers of process control from planning and scheduling down to the APC layer. However in the DCS...

Modeling of LNG Spills Into Trenches and Troughs

AIChE Spring Meeting and Global Congress on Process Safety
Apr 5, 2012
Trenches and troughs are commonly used in LNG storage and transfer facilities to contain potential LNG spills. The trenches are concrete-lined...

Flare Minimization Via Dynamic Simulation

AIChE Spring Meeting and Global Congress on Process Safety
Mar 15, 2011
Flaring in chemical process industry (CPI) is an important method to protect equipment and personnel safety during the process upset and the chemical...

Introduction and Objectives of the Session

AIChE Annual Meeting
Nov 8, 2010
This session will examine plant, company and industry roles in energy, sustainability, environment, EH&S and economic performance across several...

Unit Operations for Smart Nanomanufacturing

AIChE Annual Meeting
Nov 8, 2010
There is a chasm between promising nanotechnological advances in the laboratory and commercial manufacturing. Many techniques have been developed to...

Introduction and Session Objectives

AIChE Annual Meeting
Nov 8, 2010
This session will examine how modeling can be used for discovery and innovation, high fidelity prediction and as a substitute for physical experiment...

Optimizing the Industrial Gas Supply Chain

AIChE Annual Meeting
Nov 9, 2009
Smart process manufacturing (SPM) refers to a design and operational paradigm involving the integration of measurement and actuation; environment,...

A Standardized Approach to Smart Manufacturing

AIChE Annual Meeting
Nov 9, 2009
Advanced Process Control (APC) is a key element of the Smart Manufacturing paradigm, that helps drive the operation toward it's optimum point. For...

Simulation, Engineering and Design

AIChE Spring Meeting and Global Congress on Process Safety
Apr 27, 2009
Simulation and computer aided calculations are widely utilized and increasingly relied on in development, design, and engineering for chemical and...

Excel VBA Programming for Chemical Engineers

Instructor-led (classroom) Course
AIChE
If you know your way around Microsoft Excel and you’re ready to learn Visual Basic for Applications (VBA) Programming this course is for you. Join...

Introduction to Solid-Fluid Equilibrium Modeling

September
2014
Back To Basics
Chau-Chyun Chen, Sheik Tanveer, Yifan Hao
This article introduces the thermodynamic property models that are commonly used in process simulators to perform solid-liquid equilibrium and solid-supercritical fluid equilibrium calculations.

Chemistry Simulation Drives Clean Technology Progress

August
2008
Fluids and Solids Handling
Scott A. Drennan
Here's how to determine when to use computational fluid dynamics (CFD) to simulate the detailed chemistry of reacting flows for combustion and chemical processes.

Computational Fluid Dynamics - Power to the People

April
2007
Computational Methods
Suzanne Shelley
Today's CFD Programs are more powerful and easier to use than ever, thanks to improved mesh-generation strategies, computational methodologies, user interfaces and enhanced graphics capabilities. Cover photo courtesy of Acusim and Intelligent Light.

Beware of Errors in Numerical Problem-Solving

November
2009
Computational Methods
Michael B. Cutlip, Michael Elly, Mordechai Shacham
Understand how to detect and prevent common errors when using mathematical software tools.

Harnessing the Power of Virtual Reality

July
2012
On The Horizon
Bona Lu, Fanxiao Meng, Jinghai Li, Li Guo, Mingkun Zhao, Xinhua Liu, Zhaojie Xia, Zhouzhou Li
Advances in physical modeling and computational science will revolutionize the way engineers develop and design new technologies and processes.

The World of Wireless

February
2010
News Feature
Matthew McKeon-Slattery
As wireless technologies have advanced, old limits have been overcome and new challenges have sprung up. Further growth is likely to be driven by specific application and cost-reduction needs. <br>

How Good Are Your Data?

June
2002
Instrumentation
Scott D. Barnicki
Some thoughts on the measurement and interpretation of vapor-liquid equilibrium

Using Automation to Produce Quality Pharmaceuticals

October
2011
Instrumentation
Joseph S. Alford, P.E.
Automation can pay large dividends in the form of reduced process cycle times, lower operational costs, and more-consistent processes for manufacturing high-quality pharmaceutical products.

Alarm Management for Regulated Industries

April
2005
Instrumentation
Joseph S. Alford
This article focuses on the regulatory drivers for alarm management, summarizes key practices, and challenges automation vendors to devise new ways to help customers implement more-effective alarm systems.

Rapid Process Design

September
2006
Reactions and Separations
Michael Doherty, Sagar B. Gadewar
Use this structured approach, which combines preliminary experimental data with predictive methods and heuristics, to quickly generate and screen process alternatives at the early stages of a new venture.

Predictive Modeling in Catalysis - From Dream to Reality

June
2009
On The Horizon
Ana G. Maldonado
In silicocatalyst optimization is the ultimate application of computers in catalysis. This article provides an overview of the basic concepts of predictive modeling and describes how this technique can be used in catalyst and reaction design.

Develop Effective Environmental Training

September
2001
Environmental Management
Peter J. Stoll
Computer-based environmental compliance training offers a number of advantages. This article discusses the benefits of computer-based training, outlines its most important components, and provides tips for structuring and writing a course.

Process Synthesis: Poised for a Wider Role

April
2001
On The Horizon
W. R. Johns
Software for generating process designs has made relatively limited inroads so far. But, it now is set to follow simulation and become a tool routinely used by chemical engineers.

Virtualizing Your Process Control Computers

January
2012
Instrumentation
Paul Hodge
By employing the latest virtualization solutions for process control systems, chemical plants can reduce PC hardware requirements, simplify system management, and lower the total cost of ownership, as well as improve site availability, reliability,...

Process Simulation from the Ground Up

April
2009
Back To Basics
David Hill
Today's process simulators produce graphical, data-filled and detailed results that can improve the effectiveness of the engineers who use them.

Audit Your New EHS Software System

October
2004
Environmental Management
Jill Barson Gilbert
A post-implementation audit of the environmental, health and safety management information system evaluates how well the software meets user needs and its value to the organization.

Reduce Unplanned Shutdowns

September
2003
Instrumentation
Cindy Scott
Today's intelligent devices are equipped with modern alarm technology that enables speedy delivery of critical information to key personnel, thus enhancing efficiency and minimizing downtime.

Understand Flow Patterns in Glass-Lined Reactors

November
2004
Reactions and Separations
Christopher J. Ramsey, David S. Dickey, Keith E. Johnson , Kevin J. Bittorf
Physical modeling and computer simulation provide insights into the performance of a glass-lined reactor.

Step into the Virtual Plant

February
2002
Instrumentation
Gregory K McMillan, Mark S Sowell III, Michael M Mansy
The ability to warehouse process and control system knowledge offers a vast potential for improved operations by sharing a common source of information and avoiding data duplication.

Efficiently Solve Complex Calculations

October
2003
Information Technology
Mordechai Shacham, Neima Brauner ,  Michael B. Cutlip
Reduce the chances of computational errors by following this technique, which combines the use of a standard spreadsheet with a numerical software package.

Integrate Compressor Performance Maps into Process Simulation

June
2011
Computational Methods
Grant Stephenson
Transforming the performance maps to a reduced coordinate system that is independent of suction conditions and rotational speeds allows these curves to be accurately incorporated into a process simulator.

Realize Greater Benefits from CFD

March
2001
Fluids and Solids Handling
Ahmad H. Haidari, Andre  Bakker,  Lanre M. Oshinowo
Computational fluid dynamics has moved from mainframes to PCs and laptops. Newer and better software lets you conduct analyses not possible before, and regular engineers, not just experts, can now carry out CFD.

Modeling Production-Chain Information

February
2005
Information Technology
Jeffrey D. Kelly
Data alone is not information. Use this model to transform data into vital information for decision making.

Simplify Experimental Design

January
2010
Computational Methods
Joseph F. Louvar
Save time and money by using this approach to fractional-factorial design of experiments (DOE) for studies involving six or seven variables. <br>

Matching Your Process Constraints Using Dynamic Simulation

December
2003
Information Technology
Iban Grau, Jose J. Macias-Hernandez, Miquel A. Alos
A rigorous dynamic process simulator can be used to evaluate alternative control strategies for an exothermic reacting process in order to improve its safety and product quality.

Tools to Model Multiphase Separation

June
2007
Fluids and Solids Handling
David Connolly, Saeid Mokhatab, Timothy Newton
The flow fields in multiphase separators are often extremely complicated, making it difficult to model such systems. Computational fluid dynamics (CFD) and visual dynamic modeling (VDM) can be used together to overcome some of the challenges.

Track Condenser Performance

February
2003
Heat Transfer
Brad Buecker
An effective monitoring program can extend equipment life, improve operations, and yield substantial energy savings.

Easily Assess Complex Safety Loops

March
2001
Instrumentation
Lawrence  Beckman
Many safety instrumented systems rely on dissimilar redundant field devices, and this can complicate required analyses. These equations will enable field personnel to handle such situations readily.

Formulating Production Planning Models

January
2004
Information Technology
Jeffrey D. Kelly
Optimize petroleum and petrochemical plant production by understanding the mathematical modeling behind nonlinear planning models.

Optimize Control Room Communications

October
2001
Instrumentation
Brad A. Walker, James E. Lenhart, Karen D. Smith
Faced with more distractions than ever, operators need an environment that is conducive for dealing with abnormal, as well as normal, situations. Effective control room design can help.

Use Spreadsheets to Estimate Modeling Parameters

February
2008
Computational Methods
Tomas B. Co
Dynamic process modeling based on non-uniformly sampled data and multiple sampling runs, even for nonlinear systems, can be performed using spreadsheet implementations of the weighted-least-squares (WLSQ) and Runge-Kutta WLSQ methods.

Avoid Internet Pitfalls

April
2003
Information Technology
Tim Headley
When developing your website, take these preventative measures to steer clear of any potential lawsuits.

Understand Thermodynamics to Improve Process Simulations

December
2011
Computational Methods
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.

Integrate Process Simulation and Process Synthesis

October
2005
Computational Methods
Dominic Chwan Yee Foo, Michael Lynn McGuire, Murugan Selvan, Zainuddin Abdul Manan
The design of a new process using computer simulations to analyze a process flowsheet based on the onion model can save time, effort and, ultimately, money.
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