Keeping cool and green

Economist.com (Jul 16 2010)

1. “AN ABSOLUTE dog’s breakfast” is how David Collins describes the standard of fan blades in air-conditioning systems. This might seem to be something that would vex only an engineer like Mr Collins, the boss of Synergetics Environmental Engineering, based in Melbourne, Australia. But it is a big problem. If blades were designed for better aerodynamic efficiency, instead of for being stamped from sheet metal as cheaply as possible, the electricity consumption of many cooling systems could, he says, be cut by a third. (Read Full Article)

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