Filtered Fume Hoods, a Re-Introduction › wp-content › uploads › ... · Aptar Best Life...
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Filtered Fume Hoods, a Re-Introductionby Ken CrooksDirector, GreenFumeHood Technology
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Offer a lower total cost to the owner by:
• Decreasing HVAC costs (Division 23),
• While also increasing your portion (Division 11).
• And lower annual operating costs!
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Framingham State University4 story / 70,000 Sq.Ft. Additional/Renovation
$32M – Addition$ 4M – Renovations$17M – Infrastructure$53M Total Project
(8) Teaching Labs for:• Principals of Chemistry• Organic Chemistry• Inorganic Chemistry• Physical Chemistry• Analytical Chemistry• Food Analysis
All images credited to Ellenzweig architectsImage Credit: Ellenzweig
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Framingham State University Science BuildingLevel 4 HVAC Distribution:
(24) 6’-0” VAV Ducted Chemical Fume Hoods
Estimated first cost / hood: $12,000Estimated annual energy & maintenance cost / hood: $2,700 (Assume 40hr/wk)
However: During the DD stage FSU ran into budget problems and required value engineering.
Organic Chemistry Organic Chemistry Physical Chemistry Analytical Chemistry
Prep./Support Lab Prep. Lab
4 Story Atrium / Science Commons
Before
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Framingham State University Science BuildingLevel 4 HVAC Distribution:
Filtering Chemical Fume Hoods
After Value Engineering
25% reduction in the mechanical infrastructure
• Supply AHU capacity• Exhaust AHU capacity• Reduction in chiller capacity• Reduction in exhaust valves,
ductwork and controls
Savings…
Organic Chemistry Organic Chemistry Physical Chemistry Analytical Chemistry
Prep./Support Lab Prep. Lab
4 Story Atrium / Science Commons
After
Image Credit: Ellenzweig
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Framingham State UniversityFirst Capital Cost
Quantity Unit Rate Total
Ducted Fume Hoods (VAV controls) (49) Each $12,000 ($588,000)
Filtering Fume Hoods 49 Each $25,000 $1,225,000
Total filtering fume hood premium $637,000
AHU Reductions (18,000) CFM $13 ($234,000)Exhaust Fan Reductions (18,000) CFM $2 ($36,000)Fume Hood Valve Reductions (49) EA $2,300 ($112,700)Fume Hood SS Exhaust (100#per location) (4,900) Lbs $18 ($88,200)ATC reductions per fume hood 49 EA $800 ($39,200)ATC reductions for fume hood exhaust valves (49) EA $1,200 ($58,800)Building ductwork and Insulation reductions (36,000) / (6,900) Lbs / SF $9 / $3.5 ($348,150)
Total HVAC Infrastructure reductions ($917,050)
Total adjusted net cost ($280,050)
Total gross savings (w/ cont., GC OH&P) ($330,000)
Paid for the entire 6th floor fit-out!
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Image Credit: Air Master Systems
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Image Credit: Air Master Systems
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Framingham State University Science Building
Take away’s:• Use of filtering hoods
provided first cost and energy cost savings
• Filtering fume hoodsenabled lower floor to floorin new building
• Chemistry and largerquantities of chemicals onthe lower floors
• Provide at least (1)ducted hood
Image Credit: Ellenzweig
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Bristol Community College, ZNE Lab Building
Image Credit: Air Master Systems
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High Performance Zero Net Energy
Image Credit: BR+A Engineers
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Image Credit: BR+A Engineers
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How do we get there more often: Education!• Who: Owners, Architects, Engineers
• How:
• Tradeshows: Booth plus Speakers
• Lunch & Learns
• Lab Tours
• Committee work: NFPA 45, ANSIZ9.5, ASHRAE TC9.10
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Collateral from Erlab• Literature:
• Case Studies: Framingham, Bristol, Marywood, Bridgestone, Butler, U Rochester, more to come.
• White Paper: Selecting GreenFumeHoods.
• Design Guide: For A&E community (coming soon).
• Publications: Tradeline, Lab Design, PUPN, etc.
• Lunch & Learn presentations
• Customer References
• AMS Install & Service videos
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North America:(400)+ GreenFumeHoods(125)+ Projects(270,000)+ CFM Saved/Yr$1.35 mil Saved/Yr
Worldwide:(800)+ GreenFumeHoods(425)+ Projects
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Customer List: Education in North AmericaAntioch CollegeBabbitt SchoolBay Path Reg Voc-Tech HSBristol CC ZNE LabsBroward CollegeButler Univ.Carmel Christian SchoolCentral Piedmont CCClemson Univ.Columbia Univ.Crowder CollegeFramingham State Univ.Grand Prairie Regional CollegeGreenwood SchoolHarvard Univ.Ivy Tech CC
Manteca HSMarietta CollegeMarywood Univ.McMaster Univ.Mount Royal Univ.Murray State CollegePasco-Hernando CCPaul Smith's CollegePurdue Univ. Riverside STEM HSRock Valley CollegeRoosevelt H.S.SEED School of MarylandSouthwest Texas Junior CollegeSt. Cloud State Univ.St. Joseph's College
St. Louis Co. SchoolSt. Norbert CollegeSUNY OswegoTexas A&M Univ.Univ. of ChicagoUniv. of FloridaUniv. of MarylandUniv. of Michigan - DearbornUniv. of RochesterUniv. of Texas - AustinUtica CollegeWashington State Univ.Washington Univ.Yukon CollegeXavier Univ.
…and many more!
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Automotive:General MotorsBiolochemistry:New Mexico ConsortiumRoquettes FrèresChemical:Arkema (TOTAL Group)ChemturaDorf Ketal ChemicalsOPC PolymersClothing:Anli GroupW.L. GoreConstruction Materials:Tajima Roofing
Cosmetics:AmwayChanelEpiskinL'OréalSanoflorElectronics:Aglaia TechnologyAirBorn InterconnectEnergy:Consumer’s EnergyFood:CTA StréeGeneral Mills SillikerManildra Milling
Monopole WatersGovernment:FBI QuanticoNingbo CIQIT:IBM ResearchLab Supply:E.P. ScientificHi Res Bio SolutionsMuseum:Nanjing MuseumWilanow Museum
Customer List: Global Industry
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Petroleum:Aramco Evonik Oil AdditivesIndian OilLemigasMotiva EnterprisesPetronasTotal PetrochemicalPharmaceutical:Abbot PharmaAptarBest Life PharmanaturalsCornell Equine Drug labCovidienEthypharm
GentecGSKHanselerNihon Generic Co. LtdNovartisOril IndustriesPierre FabreRoche PharmaceuticalTowa PharmaceuticalUCB Pharmal'AlleudUPS ValdepharmQC / Test Labs:Assinbione Zoo
BachemaDKSH HoldingNational Fisheries ProductsPace AnalyticalSKB EnvironmentalUSGS Great Lakes Sc. Ctr.Research & Development:Atomic Energy AgencyEuglena Co., LtdMizkan Holding Co., LtdSaint-GobainToa Road CorporationTokako Corp.Academia Sinica Taipei Eternal Materials Co., LTD
Customer List: Global Industry
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FilteredImprovements:
DuctlessFiltrationDetection
CommunicationSash Design
Hood StructureServices/Utilities
Sizes
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Chemical “Long List”
• 500+ chemicals, each tested with 6 or more different concentrations.
• Each test performed twice.
• Represents thousands of chemicals.
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1,4-Dioxane to
2-Butenal
2-Butoxyethanol to4-Hydroytolulene
4-Methyl 2-pentanoneto
Aqua fortis
Aqua regiato
Butyl vinyl ether
… toZinc oxide.
(13) Pages long!
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Chemical “Short List”Not retained well (gases):1. Hydrogen2. Helium and the Noble Gases3. Methane4. Ethane5. Ethylene Oxide6. Carbon Monoxide7. Carbon Dioxide8. Nitrogen Monoxide9. Propylene10. Propyne, Propane11. Acetylene
Not recommended:• Perchloric Acid, Radioisotope or
Acid Digestion Hoods• Highly exothermic reactions• Mercury - Well retained but
remains extremely toxic (TLV = 0.05 ppm) and difficult to detect
• Large volumes of Methanol, Ethanol, Acetonitrile. Use condensers, closed containers.
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Learning Outcomes• Review advances in Filtered fume hoods.
• Discuss applicable Standards and Guidelines.
• Understand best practices via case studies.
McMaster Univ., Ontario
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Some of Your Clients’ Needs
• Reduce construction cost and time,
• Reduce operational costs,
• Reduce carbon footprint,
• Provide flexibility for changes and growth.
While IMPROVING safety!
Univ. of Rochester, NY
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Filtration Modules
Primary Filter
Fan Box & Detection Area
Safety / Back-up Filter
Diffuser & Pre-filter(optional HEPA)
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Filtration Modules Installed
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In with Good Air, Out with Better Air
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Detection at <1% TLV Exposure
• Suite of Detectors:• Acid• Solvent• Lab Ambient Air• Temperature• Sash Sensor
(side view of hood)
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Communication
• Users have access cards
• Local status display and alerts
• Remote monitoring of hood operation and lab conditions
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Integration – Application Review
• Steps to Evaluate Acceptability are:• Chemical Lists as per AFNOR NFX 15-211• Chemical questionnaire• Analysis report: Approved or Not Approved• Programming of sensors
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33
Chemical Review – Spreadsheet
33
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Chemical Review – Analysis & Report
34
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Standards / Certification
• Containment: ASHRAE Std. 110 in North America
• Retention: AFNOR NFX 15-211(as referenced in ANSI Z9.5-2012)
• All (3) phases of operation• Class 1 (back-up filter)
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(3) Operation Phases per NFX 15-211
Operation Phase Class 1 (Filtered) Class 2 (Ductless)
NormalEmissions concentration at filter exhaust must be
< 1% of TLV
Detection < 1% of TLV < 50% of TLV
Safety < 50% of TLV n/a
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Erlab Testing Laboratory
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• Claims of compliance shall be guaranteed by and documented in 3rd-party independent test reports.
• Additionally, per AFNOR NFX 15-211, manufacturer must supply a chemical list.
Regarding Compliance…
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FINAL THOUGHTS
• Pollution is Pollution regardless of Dilution!
• Lower first costs AND operational cost savings.
• Safety and increased flexibility.
There is a better way!
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Additional Case Studies(not presented)
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Butler University, Gallahue Hall• Modernize (4) Teaching Labs
• Improve Indoor Air Quality
• Reduce Operating Costs
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Construction Costs
FILTERED FUME HOODS COST/UNIT UNITS TOTAL
$22,000 26 $572,000$50,000 1 LS $50,000
COMPONENTS
Fume HoodsDuctwork, Lab
ControlsUpgrade to Building
Supply & Exhaust Systems
0 1 LS $0
TOTAL $622,000
DUCTED FUME HOODS COST/UNIT UNITS TOTAL
$8,000 26 $208,000$5,000 26 $130,000
COMPONENTS
Fume HoodsDuctwork, Lab
ControlsUpgrade to Building
Supply & Exhaust Systems
$350,000 1 LS $350,000
TOTAL $688,000
*Local Indianapolis area costs
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10 Yr. Operating CostsDUCTED FUME HOODS COMPONENT(S)
Fume Hood
CFM /FUME HOOD
QTY OFFUME HOODS
TOTALCFM
744 CFM* 26 19,344
YEARLY COST / CFM
$5
TOTAL YEARLY COST
$96,720
10 Yr TOTAL OPERATING $967,720* Based on 60FPM face velocity at 28” sash height
CFM / PERSON PERSONS TOTAL CFM
Classroom Ventilation
50 104 5,200 $5 $26,000
FILTERED FUME HOODS COMPONENT(S) CFM /FUME HOOD
QTY OFFUME HOODS
TOTALCFM
YEARLY COST / CFM
TOTAL YEARLY COST
Filtered Fume Hood
0 CFM 26 0 $5 $0
10 Yr TOTAL OPERATING $455,000
COST/ FUME HOOD QTY OF FUME HOODS TOTAL COST
Filter Replacement
$3,000 26 $78,000 4 Yrs $19,500FREQ. CHANGE YEARLY COST
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Before
SUPPLY DUCTWORK
MAIN SUPPLY DUCTWORK
EXHAUST DUCTWORK
MAIN EXHAUST DUCTWORK
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After
SUPPLY DUCTWORK
MAIN SUPPLY DUCTWORK
EXHAUST DUCTWORK
MAIN EXHAUST DUCTWORK
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Savings• Reduced supply air 8,330 CFM (55%)
• Reduced exhaust air 12,760 CFM (65%)
14,970
19,400
6,640 6,640
Supply CFM Exhaust CFM
Airflow Reduction
108
162
Before After
LF Sash
• While increasing LF sash 50%
• Before: (8) 12-foot and (2) 6-foot hoods
• After: (27) 6-foot filtered fume hoods
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Savings (cont.)
• Savings from reduced supply air:8,330 CFM x $4/CFM/Year =
$33,320 per year
• Other savings:• Decommissioned EF-14 @ 11,200
CFM
• Reduced demand on EF-13 by 1,500 CFM
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Maintenance• Acid sensor replacement:
• Every 2 calendar years
• $449/Hood = $225/hood annualized
• Primary filter replacement:
• 4 Filters after 5 years of operation = $840/hood annualized
• Total Annualized: $1,065/hood
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Lessons Learned• Would use filtering fume hoods again!
• Would like more walking space between benches (narrow them by 6” each).
• Students are on stools (not standing) and it is difficult to walk down the aisle.
• The renovation project happened so fast there wasn’t time to explore options.
• Open storage cubbies keep backpacks off the floor, avoids tripping hazard.
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Lessons Learned (cont.)
• More student enrollment than planned: from 300 to 425; a 42% increase!
• More faculty than planned: from 5 to 16; a 300% increase!
• Dispensing hoods could have been ducted thereby also providing the ventilation air to the lab. Regardless, filters have lasted longer than expected.
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Conclusions• Continues to achieve all goals
• Filters lasted longer than expected
• "Would do it again”
Next Steps
• Renovation of therest of the building!
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U of Rochester – Hutchinson Hall
• $1.5mil, 6-month Renovation
• Organic Chemistry Teaching Lab
• (15) Fume hoods:
• (13) Filtered
• (2) Ducted (Dispensing)
• Supply and Exhaust system ‘challenges’
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U of Rochester – Before
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U of Rochester – After • NYSERDA rebate: $36.6k
• GFH portion: $12,975
• Annual kWh Savings: 32,727
• Peak Reduction: 110.5 kWh
• Fuel Savings: 8,233 Therms
• Operating costs savings: $136,100 annually
• 300% increase in hoods!
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McMaster University, iSci Honors Lab• No capacity on exhaust
system
• Addition of (9) hoods, (8) filtered
• Installed in August, 2013
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Acids & Solvents• ELECTROPHORESIS
• FILTRATION
• PIPETTING
• ANALYSIS
• HISTOLOGY
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• Russ Ellis, M. Sc. – Lab Coordinator, Integrated Science Program
• “The GFH’s serve our needs incredibly well...”
• “Biggest battle was convincing Safety Dpt that GFH was as safe as traditional ducted hoods. We finally did convince them.”
• Face velocities are lower, not meeting McMaster’s standard of 100fpm.
McMaster University
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“A real big plus is the ability to have one hood fully accessible by installing it on an adjustable-height table.”
McMaster University
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“In summary, the hoods look great, save energy and money and allow students to work safely.”
McMaster University