Protecting chilled water coils in colder weather isn't as easy as it used to be. Fortunately, several alternative strategies remain, from air blenders to glycol to preheat coils and beyond. Survey the possibilities and consider what might work best for your system.
There have been numerous reports lately showing that schools are in dire need of structural and mechanical repairs, yet there are often no funds to fix the problems. For many schools, performance contracts may be the solution.
When the new 264,000-sq-ft Barberton High School opened last fall, approximately 1,200 students roamed the brand-new hallways and worked at state-of-the-art technology centers. But beyond the amenities like the arena-style
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.