Advanced Fume Hoods - Lawrence Berkeley National Laboratory

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Energy/ Cost Savings• Smaller openings offer more containment andmore protection allowing energy efficiencywith higher face velocities.• 6’ Hood, 22” wide x 10” opening, 80 fpm, 350cfm saves $3,760 per year vs. standard 1290cfm hood. (All calcs. Use $4/cfm)• Internal hood airflow below 5 airchanges/min.can cause corrosion when using heated acids.
FisherHamilton Designs• Information Provided by Jon Zboralski ofFisherHamilton, Two Rivers, Wisconsin• Cost/ Complexity/ Containment Score(3-C’s)• Tradeoffs between additional cost, additionalcomplexity, limits on user accessibility, andsought after increases in containment.• Restricted openings limit user accessibility.• “Barrier” airfoils limit user accessibility.• Reduced volumes affect dilution rates.• Reduced Face Velocities more affected byworker movement, traffic, and airconditioningdiffusers.
Page 4: Low Flow Constant VolumeDynamic Bar
Page 10 and 11: Restricted Hood Opening Test• ASH
Page 14 and 15: FisherHamilton Concept Hood! Sash a
Page 16 and 17: FisherHamilton Concept Hood! Downfl
Page 18 and 19: In Development! Pioneer Hood to be
Page 20 and 21: LabCrafters Air Sentry Hood! Utiliz
Page 22 and 23: LabCrafters Air Sentry Hood!Has Upp
Page 24 and 25: Labconco XStream!Designed to operat
Page 26 and 27: Berkeley High PerformanceHood!Paten
Page 28 and 29: Push-Pull Concept!One of more small
Page 30 and 31: Computer Airflow Simulation
Page 32 and 33: Fume Hood Systems!Need more emphasi
Page 34: Questions?Victor A. Neuman, PETek-A

Advanced Fume Hoods - Lawrence Berkeley National Laboratory

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