AMCA International s Opening Session

Transcription

1 AMCA International s Opening Session

2 AMCA International 59 th Annual Meeting Redux Opening Session

3 Geoff Sheard AMCA President

4 Call to Order

5 What to Expect

6 AMCA Air System Industry Update Moderator Michael Ivanovich, AMCA International Fan Regulation Update and Fan Efficiency Ratio Metric Tim Mathson, Greenheck Fan Wade Smith, AMCA International Specifying AMCA Licensed Ratings Joe Brooks, AMCA International Tim Woerner, ARCOM MasterSpec

7 AMCA International has met the standards and requirements of the Registered Continuing Education Program. Credit earned on completion of this program will be reported to RCEP at RCEP.net. A certificate of completion will be issued to each participant. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the RCEP.

8 COPYRIGHT MATERIALS This educational activity is protected by U.S. and International copyright laws. Reproduction, distribution, display and use of the educational activity without written permission of the presenter is prohibited. AMCA International 2015

9 Purpose and Learning Objectives This introduces a new efficiency metric for fans, the Fan Efficiency Ratio, and provides a status report on the U.S. Dept. of Energy regulatory initiative for commercial and industrial fans. It also summarizes the AMCA Certified Ratings Program and provides guidance on how to properly specify AMCA-licensed products. At the end of this presentation you will be able to: 1. Calculate Fan Efficiency Ratios 2. Understand AMCA s position on of the DOE regulatory discussions 3. Specify AMCA-certified products

10 Fan RegulationUpdate Fan Efficiency Ratio Metric Tim Mathson & Wade Smith 1/29/

11 Fan Efficiency DOE Rule Fans consume 35% of commercial HVAC energy DOE initiates Fan efficiency regulation AMCA has been negotiating ever since To develop a consensus among fan manufacturers (done) To convince Efficiency Advocates & DOE To sell consensus to others (AHRI, engineers, contractors, owners) 1/29/

12 Potential for Air System Savings Fan Efficiency Drive Efficiency System Effects & System Leakage Fan Selection System Design

13 Exhibit 4: Product Selection Operating Performance 80,000 CFM 3.0" SP Data from Cookware v6.0 (Loren Cook Company) Total Operating Budget Operating Model FEG Efficiency Power (HP) Price Cost/Yr Weight 365CADWDI 85 56% 114 $21,100 $37, CADWDI 85 62% 90 $16,100 $29, CADWDI 85 68% 74 $16,900 $24, CADWDI 85 77% 60 $17,600 $19, CADWDI 85 78% 56 $20,300 $18, CADWDI 85 81% 51 $23,800 $16, CADWDI 85 81% 50 $27,400 $16, Operating cost based on 16 hrs/day, 250 days/year and $0.10/kw-hr All sizes are FEG85 (represents the energy efficiency potential) Actual efficiency at the operating point varies greatly (larger sizes are operating close to peak efficiency) This illustrates the impact proper selection has on energy efficiency 1/29/

14 Data Base 22 manufacturers 46% of the American market 1.3 million fans (one line per fan, 18 columns) 4.4 million horsepower (85% > 1 motor hp) in 2012 Flow, Press. Power, Efficiency, Price, Size, Type 1/29/

15 Initial Consensus of AMCA ASHRAE 90.1 FEG 67, select within 15 pts of peak What are the savings? (Hard to determine) How do you select a fan at 0 pressure? (Not possible) Will the market respond w adverse selections? 1/29/

16 Fan efficiency varies widely with selection Centrifugal Roof Vents, Total selection point Total Efficiency at Fan Design Point Based on AMCA data base of 1.3 million fan selections, 45% of USA market 1/29/

17 New Metric: Fan Efficiency Ratio Fan Efficiency Ratio(FER) = Fan Efficiency Baseline Efficiency Varies along the fan curve Independent of fan type Two test configurations: ducted and non-ducted Think of the Baseline Efficiency as a minimum allowable fan efficiency (FER 1.0 is compliant) 1/29/

18 Fan Efficiency Ratio (FER) FER varies along the fan curve Pressure Pressure Power Efficiency Fan Input Power Airflow 1/29/

19 Fan Efficiency Ratio (FER) FER varies along the fan curve Pressure 2.0 Pressure FER 1.0 Fan Efficiency Ratio - FER 0 Airflow 1/29/

20 Static vs. Total Efficiency Ducted fans can use both static and velocity pressure to overcome system pressure losses. Ducted fans should be selected using total pressure and total efficiency is the correct measure of fan efficiency. With non-ducted fans, any velocity pressure at the fan discharge is immediately dissipated, making it unusable for any further work. Ducted fans must be selected and compared using static pressure, so static efficiency is the appropriate measure. 1/29/

21 Baseline Efficiency Increasing System Pressure and Fan Complexity Increasing Fan Size 1/29/

22 Baseline Efficiency Efficiency above the surface exceeds the baseline (FER>1) 1/29/

23 Fan Efficiency Ratio In terms of efficiency: Fan Efficiency Ratio = Fan Efficiency Baseline Efficiency In terms of power: Fan Efficiency Ratio = Baseline Power Fan Input Power 1/29/

24 Baseline Efficiency Equations For fans tested with a ducted outlet: η t,baseline = η t,target Q Q+Q 0 P t P t +P 0 For fans tested with a non-ducted outlet: η s,baseline = η s,target Q Q+Q 0 P s P s +P 0 1/29/

25 Baseline Power Equations For fans tested with a ducted outlet: H baseline = Q + Q 0 P t + P η t,target For fans tested with a non-ducted outlet: H baseline = Q + Q 0 P s + P η s,target parameters in blue are constants, 6343 is for I-P only 1/29/

26 Baseline Power Equations For fans tested with a ducted outlet: H baseline = Q P t η t,target For fans tested with a non-ducted outlet: H baseline = Q P s η s,target parameters in blue are constants, 6343 is for I-P only 1/29/

27 FER Baseline Constants P 0 impacts this curvature. P 0 was established at 0.40 (100 Pa) to match range of products available. Target efficiencies, η s,target and η t,target determine the overall level of the entire surface. Q 0 impacts this curvature. Q 0 was established at 250 cfm (0.12 m 3 /s) to match diameter effect of FEG curves. 1/29/

28 If this is what the metric looks like, what will the regulation look like? Pressure 2.0 Pressure FER 1.0 Fan Efficiency Ratio - FER Airflow 0 1/29/

29 FAN EFFICIENCY RATIO - SIMPLE How could FER be used? Body Federal Regulation ASHRAE 90.1 FER Requirement FER 1.0 at Peak & Design Point FER 1.0 at Design Point ASHRAE FER 1.1 at Design Point Rebates FER = Savings over Baseline FER = 1.10 means 10% energy savings over baseline 29

30 What does this mean to System Design Professionals & Fan Manufacturers? XX% of fan selections in 2012 do not meet the regulation target XX --- subject to negotiation (5% to 55%) Database reveals the relationship between Target efficiency Non-compliance rate Reduction in connected load (energy savings) Price impact on customer Non-compliant selections can become compliant With a larger fan diameter, or With a different, more aerodynamic fan 1/29/

31 AMCA s Advocacy Stand Alone Fans Question what efficiency target? FER Formula Total 2012 Efficiency Non-compliance Fan Category Target Rate Ducted Fans Airfoil Centrifugal 62% Total 3.0% Backward Inclined Centrifugal 62% Total 7.2% Forward Curved Centrifugal 62% Total 36.9% Radial Bladed Centrifugal 62% Total 14.9% In-line Centrifugal 62% Total 40.8% Mixed Flow Fan 62% Total 5.9% Vane Axial 62% Total 7.0% Tube Axial 62% Total 13.2% Unducted Fans Unhoused BI or AF Centrifugal 56% Static 4.6% Centrifugal Roof Ventilator 56% Static 26.6% Axial Roof Ventilator 56% Static 39.0% Propeller Panel Fan 56% Static 15.2% FER < 1.0 is not compliant. FER Baseline uses 0.4 as the pressure constant and 250 as the cfm constant, with target efficiencies shown. For fan bhp 1 to /29/

32 AMCA s Advocacy Driven by manufacturers List of Fan Categories which require more time (12-18 months) to deliberate. 1. Safety Fans dedicated and dual purpose 2. Fiberglass Reinforced Plastic (corrosion resistant) 3. Fans in a box (air handler, large unitary, etc.) - 4. Circulating Fans 5. High Temp fans 6. Open Radial Fans (unshrouded impellers) 7. Air Curtains 8. Evaporative Coolers 9. Induced Flow Fans 10. Axial Impellers embedded in non-fan products Energy and Heat Recovery Ventilators 12. Panel fans that are currently certified under the BESS program 13. Jet Fans 1/29/

33 What does this mean to the Fan Manufacturers? American Department of Energy will Require Manufacturer to certify compliant range Require catalog data to identify compliant range Require Distributors/Reps to Inform Buyers Check Test Fans that are not third party certified 1/29/

34 What does this mean to Fan Selections? 1 in. wg 2 in. wg 3 in. wg 4 in. wg 5 in. wg 6 in. wg CFM RPM BHP FER RPM BHP FER RPM BHP FER RPM BHP FER RPM BHP FER RPM BHP FER /29/

35 What does this mean to Fan Selections? Electronic Fan Selection Software based on Total Pressure Design Point 10,000 CFM at 3.0 Pt Fan Size (in.) Fan Speed (rpm) Fan Power (bhp) Actual Total Efficiency Baseline Power (bhp) Baseline Total Efficiency FER H % % % % % % % % % % % % % % % % /29/

36 What does this mean to Fan Selections? Multiple Speed Fan Performance Curves Relatively High Efficiency Fan Large selection area Peak Efficiency Static Pressure FER 1.2 FER 1.1 FER 1.0 FER 0.9 Airflow 1/29/

37 What does this mean to Fan Selections? Multiple Speed Fan Performance Curves Relatively Low Efficiency Fan Small selection area Peak Efficiency Static Pressure FER 1.0 FER 0.9 FER 0.8 FER 0.7 Airflow 1/29/

38 What does this mean to Fan Selections? Constant Speed Adjustable Pitch Axial Fan Performance Total Pressure FER 1.1 FER 1.0 FER Airflow 1/29/

39 What does this mean to Fan Selections? Multiple Speed Fan Performance Curves Relatively Low Efficiency Fan Small selection area Peak Efficiency Static Pressure Maximum speed in which FER 1.0 at Best Efficiency Point FER 1.0 FER 0.9 FER 0.8 Regulation FER must be 1.0 or greater at the Best Efficiency Point at the Maximum RPM. FER 0.7 Airflow 1/29/

40 Case Study: Square Inline Fan Ducted inlet, ducted outlet Inexpensive Easy to install Easy to maintain Low efficiency Fan shown without side for viewing internal components 1/29/

41 Square Inline Fan Size 30 (30 wheel) Entire Selection Range Max RPM Min RPM 1/29/

42 Square Inline Fan Size 30 Best Efficiency Point Max RPM Best Efficiency Point (BEP) Min RPM 1/29/

43 Square Inline Fan Size 30 Range of Fan Total Efficiency Max RPM Best Efficiency Point (BEP) Min RPM 1/29/

44 Square Inline Fan Size 30 Actual Fan Selections from Fans with Motors 1 hp 1/29/

45 Square Inline Fan Size 30 Proposed Regulation: FER 1 Approximately 40% of fan selections met the requirement 1/29/

46 Square Inline Fan Size 30 Selections covered by size 36 Approximately 70% of fan selections met by size 30 and 36 1/29/

47 Square Inline Fan Size 30 Selections covered by size 42 Approximately 90% of fan selections met by sizes 30, 36, and 42 15,000 CFM at 0.5 Pt 1/29/

48 Fan Model Product Substitution Design Point: 15,000 CFM at 0.5 Pt Design BHP FER Oper Cost ($/year) Weight (lbs) Housing Width Budget Cost Payback (years) Sq Inline $ $ Sq Inline $ $ Mixed Flow $ $ New Square Inline Fan with Improved Efficiency!!! 30 Sq Inline 42 Sq Inline 27 Mixed Flow New Lower Cost Mixed Flow Fan!!!

49 Allowable Selection Range: FER 1 at the Design Point of Operation 1/29/

50 Allowable Speed Range: FER 1 at the BEP at the Max RPM 1/29/

51 Square Inline Fan Size 30 Actual Fan Selections from 2012 Reduced max RPM eliminates 8% of fan selections and 15% of connected load 1/29/

52 Extended Products (wire-to-air) Electrical Power (kw) AMCA 207 Shaft Power (BHP) 1/29/

53 What does this mean to the Industry? EVERY Fan is compliant in some range EVERY Fan has a compliance window that limits it market EVERY Fan is a candidate for design improvement To increase its compliant selection range To expand market access Better Motor and Drive Efficiency Expands Compliant Range More so if motor enhances aerodynamics of fan 1/29/

54 What does this mean to Engineers? Ducted fans will be judged on total efficiency should be selected on total pressure Non-compliant selections resolved with larger diameter fan or a more aerodynamic shape, or more efficient drive Impact will be greater on less efficient fan categories Most efficient fans will also be lowest cost (smaller diameter) FER will reveal efficiency level at the design point 1/29/

55 What is the impact? (Depends on DOE min.) Example below FER Formula Total 2012 # of Fan Size* Increase Required for Compliance Requires Efficiency Non-compliance new shape Fan Category Target Rate FER.87 to 1 FER.77 to.87 FER.69 to.77 FER <.67 (reqmt. > peak) Ducted Fans Airfoil Centrifugal 62% Total 3.0% 1.5% 0.9% 0.3% 0.1% 0.1% Backward Inclined Centrifugal 62% Total 7.2% 3.6% 1.6% 0.9% 0.4% 0.7% Forward Curved Centrifugal 62% Total 36.9% 12.0% 12.6% 5.6% 5.0% 1.8% Radial Bladed Centrifugal 62% Total 14.9% 7.4% 4.6% 1.4% 0.2% 1.2% In-line Centrifugal 62% Total 40.8% 18.5% 8.8% 5.4% 4.7% 3.4% Mixed Flow Fan 62% Total 5.9% 3.5% 1.5% 0.4% 0.5% 0.0% Vane Axial 62% Total 7.0% 3.5% 1.1% 0.9% 0.0% 1.5% Tube Axial 62% Total 13.2% 6.3% 2.5% 2.1% 0.0% 2.3% Unducted Fans Unhoused BI or AF Centrifugal 56% Static 4.6% 1.9% 0.6% 0.3% 1.8% 0.0% Centrifugal Roof Ventilator 56% Static 26.6% 8.9% 6.1% 4.0% 7.3% 0.4% Axial Roof Ventilator 56% Static 39.0% 15.3% 8.9% 8.4% 6.1% 0.3% Propeller Panel Fan 56% Static 15.2% 7.2% 4.3% 1.6% 1.7% 0.4% * Actually, fans are available in nearly any diameter, but commonly purchased in sizes that are standardized with 12-15% efficiency gain for each larger size fan. These sizes are -- 10, 12, 15, 18, 20, 22, 24, 27, 30, 36, 40, 44, 48, 54, 60, 66, 72, 81 inch diameter impellers 1/29/

56 Potential for Air System Savings Fan Efficiency Drive Efficiency System Effects & System Leakage Fan Selection System Design

57 This Presenation can be found on AMCA.org web site 1/29/

58 Thank you. Questions? 1/29/

59 Specifying AMCA Certified Ratings Joe Brooks

60 Definitions Specification: an explicit set of requirements to be satisfied by the product. Requirement: singular documented physical and functional performance needs that must be met

61 Why specify a certified rating? To provide assurance of reliable and accurate published performance ratings testing information other pertinent information

62 AMCA Certified Ratings Program What: A program designed to provide performance assurances Why: To get the performance needed to meet design requirements How: Performance is based on standardized laboratory testing, publicized performance is independently checked, periodically verified, and is subject to challenges.

63 How to specify a product with an AMCA International Certified Rating Specify: the defining AMCA publication (e.g., AMCA 211, 311, 511, etc.), the test method (e.g., AMCA 210, ISO 5801, AMCA 500-L, etc.) the pertinent rating basis (e.g., testing in Installation Type B- free inlet, ducted outlet). Don t forget the performance desired (e.g., Beginning point of water penetration at XX ft/s per AMCA 500-L)

64 Please note: Is quoted performance certified need an APPROVED CATALOG APPROVED CATALOG Directory of Licensed Products Consider requiring an Approved Catalog to be included with all submittals/quotes/cut sheet

65 Please note:

66 Please note: Tested in accordance with AMCA Standard 210

67 Suggested wording for a fan spec.: Fans(s) shall be licensed to bear the AMCA-certified ratings seal for air performance and sound performance in accordance with AMCA 11, AMCA 211 and AMCA 311. Or The fan(s) shall be licensed to bear the AMCA Certified Ratings Seal. The fans shall be tested for air performance flow, rate, fan pressure, power, fan efficiency, air density, speed of rotation, and fan efficiency in accordance with AMCA 210/ASHRAE 51. Fan sound ratings shall be tested in accordance with AMCA 300 and shall comply with AMCA 301.

68 Suggested wording for a damper/ louver spec.: Damper(s) shall be licensed to bear the AMCA-certified ratings seal for air performance, air leakage, and efficiency in accordance with AMCA 11 and AMCA 511. Or Louver(s) shall be licensed to bear the AMCA-certified ratings seal for air performance, wind-driven rain, and water penetration in accordance with AMCA 11 and AMCA 511.

69 Specifying AMCA Certification Using the MasterSpec system Timothy E. Woerner, P.E., LEED AP, Certified Construciton Specifier

70 Specifying AMCA Certification Using the MasterSpec system Presented by: Timothy E. Woerner, P.E., LEED AP, Certified Construction Specifier ARCOM Engineering Specification Writer

71 MasterSpec Exclusively published by ARCOM Preeminent master guide specification system for use on building projects. Product of The American Institute of Architects (AIA)

72 Evaluations MasterSpec Cover Section Text Specification Coordination Drawing Coordination

73 MasterSpec Section Text Part of Contract Documents Concise Statements Instructions to specifiers Specifying assistance MasterWorks add-in Hyperlink to SpecAgent database Evaluations Explanations of Section Content References Sample drawing schedules

74 Standards and References Use of third party standards and references Specifications built around objective criteria Examples of other references NFPA, AHRI UL ASHRAE Standards 90.1, 62.1, 189.1

75 Performance Requirements In Section Text

76 Referenced Standards In Evaluations

77 Manufacturers In Section Text

78 SpecAgent Manufacturers hyperlinked from database into Section Text Convenient access to contact information

79 SpecAgent Evaluation Shelf Select manufacturers for project Links to Corporate website Call Chat Representative (where available) References

80 Offerings to Manufacturers Open BPM No charge basic listing in SpecAgent Product MasterSpec Customized section text for manufacturer's products Makes editing for a specific product easier SpecBuilder Cloud-based web tool for manufacturer s website Other Enhancements

81 Offerings to Manufacturers Contact: ARCOM s Manufacturer Support Services Mfrs@arcomnet.com Call

82 THANK YOU SEE ME FOR QUESTIONS.

83 Thank you for your time! This concludes the educational content of this activity

84 Closing Remarks and Announcements

85 Reception!

86 Recess

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