Case Study #1: Olin Hall

 

 

 

 

 

Scope of Work

·        Recommissioned the existing mechanical and control systems to optimize overall system performance.

·        Installed passive infrared (PIR) occupancy sensors and replaced most of the existing pneumatic controls with electronic controls in 40 labs to enable occupied and unoccupied modes of operation (i.e., reduce the air change rates by 50% when the spaces are unoccupied).

·        Installed variable speed drives (VSDs) on existing air handling units to reduce fan motor energy use at partial heating or cooling loads.

 

Project Completed

• December 2003

 

Project Cost

• $329,000

 

Energy Savings

• $91,000

 

Simple Payback

• 3.6 years