Demolition, construction, changing ΔT, two chiller plants, changing piping designs, adjusting makeup water pressure, incorporating thermal storage ... these are but some of the hurdles and goals the project team has faced during a major retrofit at the Centers for Disease Control in Atlanta. In short, site limitations and economics pointed to connecting the chiller plants and investing in thermal storage, but that just scratches the surface of this critical work. If you think your chiller retrofit is involved, read this and feel better.
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.