Three high-profile projects shine a spotlight on hvac in Atlanta - be it guaranteeing hot water for guests, keeping the ice play-ready for its pro team, or accommodating scores of people destined to visit in the future. As AHR/ASHRAE visitors pull in late this month, they'll find a city that's more than ready.
Although oversizing of conventional systems is still a culprit at large, and certain desiccant advantages seem clear, some engineers would most like to get their hands on independent research proving exactly when desiccants are the superior dehumidification option.
Is there a better strategy for warm-weather humidity control waiting somewhere out there? For environments like pharmaceutical or micro-electronic facilities, the coil bypass technique could be the answer. The author crunches some hard numbers to examine the advantages of using "free reheat."
Leaning on experience and data from various K-12 cities and projects, the author pursues some less conventional design approaches. They may revolve around radiant heating and/or cooling, but depending on school size and other factors, the smart use of heat recovery, DOAS, and improved central plants could also put a project on the HVAC honor roll.