Featured Case Studies
Highlighted here are some exciting demonstration site case studies offering details on application specifications, results, and availability of products included in these installations.
Heating, Ventilation, & Air-Conditioning
Melink processor panel at Sacramento City College
Demand Controlled Kitchen Ventilation
Most commercial kitchen exhaust hoods operate at full capacity all day even during non-cooking periods. The cost of unneeded energy use can amount to thousands of dollars annually per hood. By controlling the speed of ventilation fans based on actual cooking demand energy use is substantially reduced. Demand ventilation control strategies have resulted in typical fan energy reductions of 40 - 75%. Additional savings from reduced heating and cooling load have been documented of up to 40%.
Demand Ventilation Control in Commercial Kitchens Case Study »
Large Duct System SealingLeaky ducts can't maintain adequate ventilation without increasing fan flow dramatically and wasting considerable energy. Leaks often increase heating and cooling loads by improperly distributing conditioned air and by increasing infiltration through the building envelope. Developed at Lawrence Berkeley National Laboratory, aerosol duct sealing is designed to quickly repair leaks that are practically inaccessible or otherwise too expensive to fix. After isolating the duct system, an aerosol vinyl polymer adhesive is suspended in low-velocity pressurized flow through the duct. The momentum of particles accelerated through cracks causes the adhesive to nucleate on edges and build a seal to block the flow. The sealant is deposited preferentially at leaks as opposed to interior faces of the ductwork. Aerosol Duct Sealing in Central Exhaust Systems Case Study »
Interior Lighting
UC Office of the President, Oakland CA. POST-RETROFIT: Fluorescent pendant
Integrated Office Lighting Systems (IOLS)
Overhead fluorescent troffers or pendants traditionally provide office lighting with additional task lighting by energy-intensive fluorescent under-cabinet fixtures and desk lamps. Achieving significant energy savings in office environments requires that both lighting loads be reduced without sacrificing occupant satisfaction or visual comfort. A SPEED partner, California Lighting Technology Center, engaged with Finelite, Inc. to develop a task lighting system powered by energy-efficient LEDs. The resulting Personal Lighting System (PLS) consists of a suite of luminaires for under-cabinet and desk lamp applications that can be combined to create custom task lighting systems. Integrating PLS with reduced overhead lighting (IOLS) can achieve unprecedented energy savings and a total integrated office lighting system power density as low as 0.6 W/ft2. Two case studies document impressive energy savings of 44 – 54% compared to baseline conditions.
CA Department of Motor Vehicles Case Study »UC Office of the President, Oakland CA Case Study »
