The author focuses on how humidity control affects the IAQ of the modern workplace environment. Studies cited show the effect that controlled relative humidity levels has on absenteeism and productivity. Overall benefits of hvac renovation to improve IAQ are reviewed, as well as current humidity control technologies and their applications.
The IU Chemistry Building was not using chilled water efficiently. The problem was corrected by installing variable-speed drives on the chilled-water pumps and resetting the control valve differential for better control, energy savings, and improved chilled-water temperature changes.
Treating pressure vessels and equipment as an asset involves establishing a mindset that is proactive towards maintenance, upkeep, and repair (as opposed to waiting until the warning signs are flashing). In the long run, proactive, not reactive, planning saves in more ways than one.
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.