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June 2009, Vol. 105, No. 6
In This Issue
CRITICAL ISSUES
Climate Change — What Does the Research Mean?
Claims within the science community about whether and how global warming is affecting hurricane intensity and frequency, the ice field of Mount Kilimanjaro, and the polar ice masses are inconsistent and warrant further investigation before any regulations or policies are put into place.
Michael J. Economides and Xina Xie
ON THE HORIZON
Predictive Modeling in Catalysis — From Dream to Reality
In silico catalyst 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.
Ana G. Maldonado and Gadi Rothenberg
MANAGEMENT
Driving Profitability with Swaps and Exchanges
Swap and exchange programs can significantly reduce logistics costs, as well as an organization’s carbon footprint. Despite its potential, the technique is often constrained by commercial, technical and operational concerns.
Frank Erzinger
HEAT TRANSFER
Predicting Emissivities of Combustion Gases
Use this new correlation, which employs easy-to-solve algebraic equations to estimate gas emissivities, to simplify the design and optimization of boilers, furnaces and other combustion equipment.
Alireza Bahadori and Hari B. Vuthaluru
BACK TO BASICS
The Case for Double Mechanical Seals
Using double mechanical seals as part of thermoplastic pumps can prevent costly downtime and environmental damage.
Jack Berg