Parallel or opposing blades for the best mix of air in VAV systems? What about deploying filtration only when you really need it, thereby avoiding unnecessary pressure drop? Include some ideas about economizer control and another vote for CO2 sensors and demand-controlled ventilation, and you've got some worthwhile - if not always traditional - answers for airside controls blowin' in the wind.
Many engineers tend to avoid or delegate the nitty gritty of a ground source heat pump system, from soil moisture effects to building system (im) balance. It's time for designers to get in the loop. Learn more about Grounded In Reality in the December issue. Other topics in the December issue include health care HVAC, Boilders, check out the Back2Basics, and more.