The available LEED credits and most obvious energy-saving possibilities are one thing. The potential for a ripple effect of system-wide savings by deploying VFDs as part of better overall monitoring are another.
A few are more familiar and worth a reminder, while some are pretty sneaky. Others may have gotten there before the first occupant. In any event, any “sustainable facility” can sustain IAQ damage without attention to these sorts of risks.
Reviewing documents, sizing equipment and systems, and sketching on the go: got an app for that? Also, we compare tablet vs. phone and the advantages or worries that come with taking your tablet into imperfect field conditions. How do you use yours?
After a brief hiatus, we are resuming exploration of the tablet as engineering tool. In the first article, we examined the energy study and how the tablet can facilitate tasks such as annotating existing documents, taking notes, and storing and accessing documents.
HVAC systems continue to be the most challenging part of a new construction project to get right the first time, and the most challenging parts of the HVAC systems are their controls. I believe there are two root causes.
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.