What are engineers making time to read? Here is the five-item punch list of the most popular news articles, features, and columns at ESmagazine.com.

1. Basics For Absorption Chillers

2. Is Variable Fan Speed an Answer to Part-Load Efficiency in Modular Air-Cooled Chillers and Heat Pumps?

3. Seven Trends Making Engineering and Construction Projects Bigger and Costlier

4. Well-Maintained Central Plants Are a Facility's Lifeblood

5. A Holistic Approach to Upgrading a Chilled Water Plant