As part of an on-going program to acquire energy conservation savings by investingin industrial customers operations, Snohomish County Public Utility District partnered withthe Northwest Energy Efficiency Alliance's 'Just Enough Air' project. The project focus ison improving efficiencies of blower operations using various strategies to generatesignificant and very cost-effective electrical energy savings.This paper highlights fan speed reduction technologies ranging from very low costsheave changes to adjustable speed drives. Returns on investment results have beenespecially positive with these approaches. The technology lends itself to use by a variety ofsecondary wood products and other material processing operations using small particulatelow-pressure material collection systems.Case studies of three Snohomish County Public Utility District (Snohomish)customers participating in Snohomish's Energy Efficiency Incentive Program are presentedwhere fan speed reduction achieved significant energy savings. Descriptions of how eachbusiness met its specific needs address the crucial requirement of all industrial efficiencypractices to align with customer's industrial process objectives. The case studies includefirms manufacturing cabinets, office/sales displays and furniture edge-banding products.The paper addresses approaches and lessons learned that are useful for both utilitiesand end-users in achieving low-pressure pneumatic blower systems efficiency improvements.The partnership between Snohomish, its industrial customers and the Just Enough Air projectserves as an example of a successful approach to achieving low cost energy savings.
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