Johnson is an engineer in the Systems and Controls Group with EYP Mission Critical facilities and has a B.S. in Mechanical Engineering Technology from Rochester Institute of Technology with over 9 years of experience. His expertise encompasses (BMS) design for mission critical facilities, building load calculations, and HVAC system design for commercial buildings.
Data centers are expensive propositions, so incorporating some free cooling is financially attractive as well as green. However, reaching the real savings involves more than just incorporating economizers. You need the controls to execute an overall sequence of operation that handles the transitions in chilled water plant performance, too.
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.