CEP: January 2017 Troubleshooting is a common task for chemical engineers. Two articles in this issue cover the topic, one on downcomer scanning for diagnosing your tower or column and one on infrared thermal imaging cameras to troubleshoot process upsets in applications that are too severe, impractical, or unsafe for direct-contact temperature instruments. Other topics this month include air-cooled heat exchangers and process safety. Editorial Making RAPID Gains in Energy Efficiency In a 2012 report, the American Council for an Energy-Efficient Economy (ACEEE) examined energy-efficiency opportunities looking forward to 2050 and found that energy efficiency could reduce projected 2050 U.S. energy use by 40–60%. Achieving those reductions would require implementation of a wide variety of advanced technologies and infrastructure improvements throughout the industrial, transportation, commercial, and residential sectors. Read more Share Use Thermography to Expose What’s Hidden January2017Plant OperationsHendri BarnardDon’t be kept in the dark. Use thermal imaging to reveal the true colors of your process upset. Use Downcomer Gamma Scans to Troubleshoot Your Process January2017Reactions and SeparationsHenry Z. Kister, Chuck WinfieldDowncomer scanning can provide valuable information to diagnose your tower. In particular, these scans are useful for determining the mechanism of flooding — one of the most common problems encountered in distillation columns. Follow these guidelines to avoid pitfalls. Improve Air-Cooled Heat Exchanger Performance January2017Back To BasicsSteve Boes, P.E.Employ the maintenance practices outlined here to increase the cooling capacity of your air-cooled heat exchangers. Don’t Do This! January2017SafetyGlenn Young, Joel OlenerThese are some of the worst process safety management (PSM) practices we have seen. Don’t make these mistakes. Copyright Permissions: Would you like to reuse content from CEP Magazine? It’s easy to request permission to reuse content. Simply click here to connect instantly to licensing services, where you can choose from a list of options regarding how you would like to reuse the desired content and complete the transaction.