Fan Efficiency Codes and Standards - AMCA Codes-Standards-2013... · Fan Efficiency Codes and...
Transcript of Fan Efficiency Codes and Standards - AMCA Codes-Standards-2013... · Fan Efficiency Codes and...
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Fan Efficiency Codes and Standards
Michael Ivanovich Director of Strategic Energy Initiatives AMCA International [email protected] www.amca.org/feg
I2SL Interna+onal Ins+tute for Sustainable Laboratories 2013 Conference Minneapolis, MN
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Learning Objectives • Know that AMCA Standard 205, Energy Efficiency
Classification for Fans, defines Fan Efficiency Grades (FEGs)
• Know why AMCA Standard 205 also prescribes fans be sized/selected to operate within 15 percentage points of peak total efficiency.
• Know which model codes and standards are adopting fan efficiency language that pertains to laboratories.
• Know what recent changes have been made to AMCA Standard 260 Laboratory Methods of Testing Induced Flow Fans for Rating.
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Agenda • History of fan codes and standards • AMCA Standard 205 • 2013 ASHRAE 90.1 • 2014 ASHRAE 189.1 • 2015 Intl. Energy Conservation Code • 2016 Intl. Green Construction Code • U.S. Dept. of Energy Initiative for Fan
Standard
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About AMCA International • Not-for-profit manufacturers association • Mission: To promote the health, growth, and
integrity of the air movement and control industry
• Active on national and international codes and standards bodies (ISO, ASHRAE, ICC, HVI, etc.)
• 310+ member companies • Certified Ratings Program
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About AMCA International • Commercial, Industrial, Residential • Certified Ratings Program
– Products • Fans – including induced flow lab exhaust • Dampers • Louvers • Air Curtains
• AMCA Laboratory – A2LA-certified to ISO/IEC 17025
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Agenda
• History of fan codes and standards • AMCA Standard 205 • 2013 ASHRAE 90.1 • U.S. Dept. of Energy Initiative for Fan
Standard • What the future looks like
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History of Fan Codes & Standards
• 1556 – De Re Metallica published by Georgius
Agricola • 2007
– Start of European/ISO and ASHRAE/AMCA fan-efficiency activity
• 2010 – ISO-12759 and AMCA-205 standards – AMCA Certified Ratings Program for
Fans
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History of Fan Codes & Standards
• 2011 – IgCC-2012 and ASHRAE 90.1-2013 proposals
• International Green Construction Code - IgCC
– U.S. Dept. of Energy starts fan rulemaking process • 2012
– IgCC published – first reference of AMCA 205 • 2013
– ASHRAE 90.1 published – IECC, ASHRAE 189.1, and IgCC processes started – U.S. Dept. of Energy process fully engaged
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2007: Rise and Fall of the 65%-Efficiency Requirement
Fan
Pea
k To
tal E
f!ci
ency
(%)
90
80
70
60
50
40
30
Fan Size (Impeller Diameter) (in.)
4035302520151050
Air foilBackward curveBackward inclineForward curveMixed impeller
Air foil Backward curve Mixed impeller Backward incline Forward curve
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Fan Facts
• Fans are a mature market • Niche products for specific
applications • Multiple fan types, sizes, prices can
meet application requirements • Some types of fans more efficient than
others
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Fan Facts
• Smaller fans are less efficient than larger fans of the same type – Bearing losses; tolerances
• Fan efficiency not always the sole parameter for an efficient fan selection
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Agenda
• History of fan codes and standards • AMCA Standard 205 • 2013 ASHRAE 90.1 • U.S. Dept. of Energy Initiative for Fan
Standard • What the future looks like
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ANSI/AMCA 205-12 • Energy Efficiency
Classification for Fans – Defines Fan Efficiency
Grade (FEG). – Fan only; no motor or
drive. – Covers most types of fans
by referencing applicable rating-test standards.
– Covers induced flow fans.
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Side Note: AMCA 260 • Induced Flow Fan Test for
Rating. • Referenced by AMCA 205. • Subject to codes/stds that
reference AMCA 205. • Revised AMCA 260 will be
available in late 2013. • Enables FEG ratings
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AMCA 205 Metric: Fan Efficiency Grades (FEG)
• An index of aerodynamic fan efficiency potential – Shaft Power to Air Power – Excludes motors and drives
• Calculated from fan-rating test data • Based on total efficiency, not static
efficiency • Accounts for smaller-diameter fans • Family of curves derived from fan data
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AMCA 205 Metric: Fan Efficiency Grades (FEG)
Fan
Pea
k To
tal E
f!ci
ency
(%)
90
80
70
60
50
40
30
20
FEG90
FEG85
FEG80
FEG75
FEG71
FEG67FEG63
FEG60FEG56FEG53FEG50
Fan Size (Impeller Diameter) (in.)454035302520151050
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65% vs. FEG 67 Fa
n P
eak
Tota
l Ef!
cien
cy (%
)
90
80
70
60
50
40
30
20
Fan Size (Impeller Diameter) (in.)4035302520151050
FEG90
FEG85
FEG80
FEG75
FEG71
FEG67FEG63
FEG60FEG56FEG53FEG50
65% ef!ciencythreshold
Fans eliminated by65% ef!ciency threshold
ASHRAE 90.1
IgCC
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Thought Question
• Is the efficiency requirement alone enough to result in higher efficiency operation?
• Answer: No.
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Size Matters
• All sizes are FEG85 (represents the energy efficiency potenMal)
• Actual efficiency at the opera+ng point varies greatly (larger sizes are operaMng close to peak efficiency)
• This illustrates the impact proper selec+on has on energy efficiency 19 9/24/13 I2LS 2013 -‐ Minneapolis
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AMCA Standard 205
“The fan operaMng efficiency at all intended operaMng point(s) shall not be less than 15 percentage points below the fan peak total efficiency.”
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Fan Curve & Fan Selection
Flow(cfm)
(Pt )
(! t )
Max 15 percentagepoints
Qmin Qpeak Qmax
Fan Total Pressure (P
t ) Fan
Tota
l Ef!
cien
cy (!
t)
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Agenda
• History of fan codes and standards • AMCA Standard 205 • 2013 ASHRAE 90.1 • U.S. Dept. of Energy Initiative for Fan
Standard • What the future looks like
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Challenging!
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ASHRAE 90.1-2013 • 6.5.3.1 Fan System Power and Efficiency • 6.5.3.1.3 Fan Efficiency. Fans shall have a
Fan Efficiency Grade (FEG) of 67 or higher based on manufacturers’ certified data, as defined by AMCA 205. The total efficiency of the fan at the design point of operation shall be within 15 percentage points of the maximum total efficiency of the fan.
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ASHRAE 90.1-2013 Exceptions: a) Single fans with a motor nameplate rating of 5
hp or less. b) Multiple fans in series or parallel (eg. fan
arrays) that have a combined motor nameplate rating of 5 hp or less and are operated as the functional equivalent of a single fan.
c) Fans that are part of equipment listed under 6.4.1.1 Minimum Equipment Efficiencies – Listed Equipment – Standard Rating and Operating Conditions.
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ASHRAE 90.1-2013 Exceptions: d) Fans included in equipment bearing a
third-party-certified seal for air or energy performance of the equipment package.
e) Powered wall/roof ventilators (PRV). f) Fans outside the scope of AMCA 205. g) Fans intended to be operated only
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2014 ASHRAE 189.1
• Continuous maintenance proposal • Not yet out for public peer review • Same as ASHRAE 90.1, BUT…
– 10% points sizing/selection window instead of 15% points
• Slightly stricter
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2015 IECC (likely)
• No comments to peer review • Final hearings Oct. 7-10, 2013 • Same as ASHRAE 90.1, BUT…
– FEG ratings must be certified by independent third-party
– Label must be present on the fan
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2016 IGCC (to be proposed)
• Will base on 2014 ASHRAE 189.1 • Proposals due Jan. 4, 2014 • Will significantly modify 2012 IGCC
language – FEG 71, 10% points – Fans > 1 HP – Buildings
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2018 or so: DOE Regulation
• Will likely cover lab exhaust fans • Could impact model codes and
standards • Follow developments at the AMCA
website
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Free Resources • AMCA codes/standards tracking
– http://tinyurl.com/cgw7kae • AMCA 205-12 (free, for now) • Updates on ASHRAE, ICC, DOE fan efficiency activity
• Technical articles and publications – http://tinyurl.com/c2l2lab
• April 2013 – ASHRAE Journal (FEG in 90.1) • May 2013 – HPAC Engineering (FEG + Fan Power
Limits) • AMCA Certified FEG Ratings Finder
– http://www.amca.org/feg/feg-finder.aspx
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Questions? Thank you ---
Michael Ivanovich Director of Strategic Energy Initiatives
AMCA International [email protected]
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