OPTICAL DEVICE MANUFACTURER CLEAN ROOMS
MASSACHUSETTS
CHALLENGE
This global leader develops thermal imaging sensors and camera platforms for commercial, industrial, and government use. B2Q was engaged by the client and the local utility to analyze energy efficiency strategies for cooling equipment serving five clean spaces including Optical Coating Lab (Class 100K Lab), Cooler Lab (Class 10K), Main Production Clean Room (Class 100K), Optical Manufacturing Area (Class 10k), and Optical Test Lab (Class 1k).
OPPORTUNITY
B2Q reviewed existing HVAC systems and environmental requirements, comparing cooling equipment energy consumption to savings potential. Our engineering team developed energy conservation recommendations specific to each area and conducted a cost-benefit analysis of each.
RESULT
B2Q identified energy savings of 10% to 30% for each of the five clean room areas. Subsequently, B2Q provided HVAC design for the renovation of 4 out of 5 of the clean rooms. Energy savings measures included:
Optimizing the recirculation rate to control particulate in the .5 and 5 µm size range by adding/reconfiguring HEPA filter layout to address velocity targets and reduce filter CFM
Utilizing Digital Scroll compressors for improved part load performance
Adding particulate monitoring to reset recirculation based on loading
Replacing electric steam generation with Ultrasonic humidification
Adding BAS controls to all recirculation fans, including VFDs, to achieve active recirculation control
Market:
Industrial
Services:
Energy Efficiency and Analysis
Building Systems
