Fan Efficiency Codes and Standards - AMCA Codes-Standards-2013... · Fan Efficiency Codes and...

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

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.

9/24/13 2 I2LS 2013 -‐ Minneapolis

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

3 9/24/13 I2LS 2013 -‐ Minneapolis

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


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


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


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


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


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


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


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


Agenda




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.


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


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


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


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


Thought Question

•  Is the efficiency requirement alone enough to result in higher efficiency operation?

•  Answer: No.


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

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.”


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)


Agenda




Challenging!


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.


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.


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

during emergencies. 26 9/24/13 I2LS 2013 -‐ Minneapolis

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


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


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


2018 or so: DOE Regulation

•  Will likely cover lab exhaust fans •  Could impact model codes and

standards •  Follow developments at the AMCA

website

9/24/13 I2LS 2013 -‐ Minneapolis 30

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


Questions? Thank you ---

Michael Ivanovich Director of Strategic Energy Initiatives

AMCA International [email protected]

www.amca.org 32 9/24/13 I2LS 2013 -‐ Minneapolis

Fan Efficiency Codes and Standards - AMCA Codes-Standards-2013... · Fan Efficiency Codes and...

Documents

Transcript of Fan Efficiency Codes and Standards - AMCA Codes-Standards-2013... · Fan Efficiency Codes and...