Three years ago, chiller failures at Marshalltown Medical and Surgical Center created a real crisis. A measured dose of "CPR" (chilled-water plant replacement) has since restored the system to health. Inspect this treatment, from diagnosis to equipment selection to success and savings. By Charles S. Heldenbrand, P.E.
A new federal courthouse on Long Island seeks not only to illuminate visitors with the light of the law, but with plenty of natural light as well. After appropriate deliberation by the designers, the final system does justice to some creative architecture, a challenging atrium, and even preplanned expansion strategies. By John Lennon, P.E.
Mixed-flow impeller roof exhaust technology usually has been deployed for re-entrainment prevention and odor control. Now, it's providing energy savings in industrial and educational settings in a heat recovery role. By Paul A. Tetley