Two North American
consulting firms set out to investigate the safety and economic possibilities
of using displacement in hospitals instead of traditional ventilation
strategies. Here, one firm reports on testing in an ER waiting room setting
(which itself can be an infection transmission problem waiting to happen). The
research also raised a couple of unexpected questions – when does overhead
ventilation “imitate” displacement, and are air changes always all they’re
cracked up to be?
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.