ANSI AMCA 260-2013 Laboratory Methods of Testing Induced Flow Fans for Rating《测试诱导流风扇额定值的实验室方法》.pdf

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1、AIR MOVEMENT AND CONTROLASSOCIATION INTERNATIONAL, INC.30 West University DriveArlington Heights, IL 60004-1893 U.S.A.E-Mail : infoamca.org Web: www.amca.orgTel: (847) 394-0150 Fax: (847) 253-0088The Air Movement and Control Association International Inc. is a not-for-profit international associatio

2、n of the worlds manufacturers of related air system equipment, primarily but not limited to fans, louvers, dampers, air curtains, airflow measurement stations, acoustic attenuators and other air system components for the industrial, commercial and residential markets.The International Authority on A

3、ir System ComponentsAIR MOVEMENT AND CONTROLASSOCIATION INTERNATIONAL, INC.ANSI/AMCA Standard 260-13Laboratory Methods of TestingInduced Flow Fans for RatingAn American National Standard Approved by ANSI on November 5, 2013ANSI/AMCA Standard 260-13Laboratory Methods of TestingInduced Flow Fans for R

4、atingAir Movement and Control Association International30 W. University DriveArlington Heights, Illinois60004AMCA Standard 260 was approved by the membership of the Air Movement and Control Association International Inc. on March 1, 2007. It was revised on November 5, 2013. 2013 by Air Movement and

5、Control Association International Inc.All rights reserved. Reproduction or translation of any part of this work beyond that permitted by Sections 107 and 108 of the United States Copyright Act without the permission of the copyright owner is unlawful. Requests for permission or further information s

6、hould be addressed to the executive director, Air Movement and Control Association International Inc. at 30 West University Drive, Arlington Heights, IL 60004-1893 U.S.A.Air Movement and Control Association International Inc. will consider and decide all written complaints regarding its standards, c

7、ertification programs or interpretations thereof. For information on procedures for submitting and handling complaints, write to:Air Movement and Control Association International30 West University DriveArlington Heights, IL 60004-1893 U.S.A.AMCA International Incorporatedc/o Federation of Environme

8、ntal Trade Associations2 Waltham Court, Milley Lane, Hare HatchReading, Berkshire, United KingdomRG10 9THAMCA uses its best efforts to produce standards for the benefit of the industry and the public in light of avail-able information and accepted industry practices. However, AMCA does not guarantee

9、, certify or assure the safety or performance of any products, components or systems tested, designed, installed or operated in accordance with AMCA standards or that any tests conducted under its standards will be non-hazardous or free from risk.AMCA PublicationsAuthorityCopyrightObjectionsDisclaim

10、erBob Valbracht Loren Cook CompanyCommittee ChairAng Swee Hock Lawrence DongGuan Wolter Chemco Ventilation Ltd.John Cermak Acme Engineering and Manufacturing CorporationSisir Chakraborty CB Doctor Ventilators Pvt. Ltd.Charles Gans Strobic Air CorporationDaniel Khalitov Twin City Fan Companies Ltd.Ja

11、son Letterman PennBarryKeith Lins M. K. Plastics CorporationBrian Merritt Strobic Air CorporationFernando Ruiz Equipos Electromecanicos, S.A de C.V.Ronald Wendorski Greenheck Fan CorporationReview CommitteeRelated AMCA DocumentsAMCA Publication 11 Certified Ratings Program - Operating ManualAMCA Pub

12、lication 211 Certified Ratings Program - Air PerformanceANSI/AMCA Standard 210 Laboratory Methods of Testing Fans for Aerodynamic Performance RatingRelatedPublicationsRelatedStandardsContents1. Purpose and Scope .12. Normative References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13. Units of Measurement .14. Symbols and Subscripts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15. D

14、efinitions.15.1 Induced flow fan.15.2 Outlet airflow .15.3 Outlet area.15.4 Nozzle area 16. Instruments and Methods of Measurement 16.1 Variable supply and exhausts system 17. Test Setups 17.1 Inlet chamber or inlet duct setup 27.2 Test for measurement of outlet airflow28. Observations and Conduct o

15、f Test.28.1 Data recording requirements for the outlet airflow test as defined in Section 7.2 .29. Calculations .29.1 Calculation requirements for the outlet airflow test as defined in Section 7.229.2 Total efficiency calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29.3 Compressibility factor.210. Report and Results of Test 3ANSI/AMCA 260-13 | 1Laboratory Methods of TestingInduced Flow Fans for Rating1. Purpose and ScopeThe purpose of this standard is to establish a uniform labo-ratory met

17、hod for determining an induced flow fans aerody-namic performance in terms of airflow rate, pressure devel-oped, power consumption, air density, speed of rotation and efficiency. This standard is an adjunct to ANSI/AMCA 210 in order to accommodate the induced flow fans unique characteristics.It is n

18、ot the purpose of this standard to specify the testing procedures to be used for design, production or field testing. The scope of this standard is limited to induced flow fans, as defined below. The parties to a test, for guarantee purposes, may agree on exceptions to this standard in writing prior

19、 to the test. However, only tests which do not violate any mandatory requirements of this standard shall be designated as tests conducted in accordance with this standard.2. Normative ReferencesThe following standard contains provisions which, through reference in this text, constitute provisions of

20、 this standard. At the time of publication, the edition indicated was valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent edition of the stan-dard indicated below.ANSI/AMCA 210: Labor

21、atory Methods of Testing Fans for Aerodynamic Performance Rating3. Units of MeasurementAll units used in this standard are defined in ANSI/AMCA 210. The primary units are SI units (The International System of Units (Le Systme International dUnits), with I-P (inch-pound) units given as the secondary

22、reference.4. Symbols and SubscriptsAll symbols and subscripts are defined in ANSI/AMCA 210 with the following addition. For an induced flow fan, there are two planes of exit. Where the main (inlet) flow exits the nozzle, the outlet plane will preserve the ANSI/AMCA 210 definition of plane 2. The pla

23、ne at the end of the wind band will be identified by a subscript “9”. Thus the average veloc-ity at the exit of the nozzle is identified as V2, and the aver-age velocity at the exit of the wind band is identified as V9.5. DefinitionsAll definitions are given in ANSI/AMCA 210 with the follow-ing addi

24、tions:5.1 Induced flow fanAn inducted flow fan is a housed fan whose outlet airflow is greater than its inlet airflow due to induced airflow. Those induced flow fans under the scope of this standard will include a nozzle and a windband. All of the flow entering the inlet will exit through the nozzle

25、. The flow exiting the windband will include the nozzle flow plus the induced flow.5.2 Outlet airflowThe outlet airflow is the airflow at the inlet plus the induced airflow. It is the total flow exiting the windband.5.3 Outlet areaThe outlet area is the inside area measured in the plane of the outle

26、t opening of the windband.5.4 Nozzle areaThe nozzle area is the inside area measured in the plane(s) of the outlet opening(s) of the nozzle.6. Instruments and Methods of MeasurementAll of the requirements for instruments and methods of measurements found in ANSI/AMCA 210 are applicable to testing do

27、ne in accordance with this standard6.1 Variable supply and exhausts systemA means of varying the point of operation shall be provided in a laboratory setup. Throttling devices may be used to control the point of operation of the fan. Such devices shall be located on the end of the duct or chamber an

28、d should be symmetrical about the duct or chamber axis.7. Test SetupsThe two tests described in Sections 7.1 and 7.2 are required for induced flow fans. 2 | ANSI/AMCA 260-13The air path components shall remain the same for both tests.7.1 Inlet chamber or inlet duct setupA full ANSI/AMCA 210 test usi

29、ng Test Figure 13, 14, 15, or 16 shall be performed. No duct on the outlet is allowed. For this test, plane 2 is defined as the plane at the nozzle outlet and the fan outlet area is defined as the nozzle outlet area. The results shall be presented as defined ANSI/AMCA 210. The resulting fan curve wi

30、ll show all performance param-eters except outlet airflow as defined above.7.2 Test for measurement of outlet airflowThe induced flow fan shall also be set up and tested in accordance with Figure 1. The outlet end of the wind band is attached to an outlet chamber per Figure 11 or 12 of ANSI/AMCA 210

31、. The outlet can be attached either flush or protruding into the chamber. A variable resistance box is attached to the inlet of the induced flow fan as defined in Figure 1.8. Observations and Conduct of TestAll testing requirements and data recording must be in accordance with ANSI/AMCA 210 except a

32、s stated below.8.1 Data recording requirements for the outlet airflow test as defined in Section 7.2 Torque or other means of determining input power is not required for this test. Chamber static pressure Ps7is main-tained at zero for this test and need not be recorded. The resistance box pressure P

33、t8and temperature td8must be recorded. In lieu of a total pressure tube, a piezometer ring can be used to measure static pressure at plane 8. If this alternate arrangement is used, and the calculated plane 8 velocity is greater than 2 m/s (400 fpm), then the calculated plane 8 velocity pressure (a p

34、ositive value) shall be added to the measured static pressure (a negative value). Calculation of the plane 8 velocity pressure requires the inlet flow rate as determined in the inlet chamber (or inlet duct) test, the area in plane 8, and the density in plane 8. The duct piezom-eter formulae given in

35、 ANSI/AMCA 210 can be used, except plane 8 is substituted for plane 4. 9. CalculationsAll calculation requirements found in ANSI/AMCA 210 apply to this standard except as defined in the following:9.1 Calculation requirements for the outlet airflow test as defined in Section 7.2The equations for flow

36、 and pressure are as defined in ANSI/AMCA 210 Figure 11 or 12 as appropriate. Some variables must be revised to accommodate the setup shown in Figure 1 below.9.1.1 Inlet density (r)The pressure drop through the resistance box will change the inlet density from that shown in the ANSI/AMCA 210 Figure

37、11 or 12 calculations. The following must be used:rr=+0273 15273 15ttPppd0d8s8 bb.Eq. 9.1 SIrr=+0459 67459 6713 59513 595ttPppd0d8s8 bb.Eq. 9.1 I-P9.1.2 Fan static pressureFor the Figure 1 setup, the fan static pressure will be the negative of the fan inlet total pressure. Therefore:PPst8=Eq. 9.29.2

38、 Total efficiency calculationhtv2 ptp=QP KQPKH111Eq. 9.3 SIhtv2 ptp=QP KQPKH1116343 3.Eq. 9.3 I-PWhere:Q1flow through the fan inlet (m3/s) cfmPt1total pressure in fan inlet (Pa) in. wgPv2velocity pressure in fan nozzle (Pa) in. wgH fan input power (W) bhpKpcompressibility factorNote: These data are

39、obtained from the ANSI/AMCA 210 test described in Section 7.29.3 Compressibility factorThe compressibility coefficient (Kp) may be determined using the following equations from ANSI/AMCA 210:xPPp=+tt1 bEq. 7.54 SIxPPp=+tt1 b13 595.Eq. 7.54 I-PANSI/AMCA 260-13 | 3And:zHQPp=+gg1t1 bEq. 7.55 SIzHQPp=+g

40、g16343 313 595.t1 bEq. 7.55 I-PAnd:Kxxzzp=+() +()lnln11Eq. 7.56Which may be evaluated directly. Pt, Pt1, pb, H, and Q are all test values. The isentropic exponent (g) may be taken as 1.4 for air.10. Report and Results of TestThe results of the fan tests shall be presented as plots. ANSI/AMCA 210 def

41、ines typical plotting conventions. The outlet flow versus fan static pressure may be plotted on the same graph as the inlet flow. Descriptions of the test fan, test instruments and personnel as outlined in Section 8 must be reported. The laboratory shall be identified by name and location. 4 | ANSI/

42、AMCA 260-13Notes:1. The exit plane of the windband may be flush with the chamber or protrude inside. The depth of protrusion shall not be more than one-half the depth of the windband.2. The dimension N can be either the inside square or inside round dimension of the variable resistance box. Its valu

43、e shall make the area at Plane 8 at least five times the inlet area (A1) of the fan.3. Settling means shall be woven wire mesh or perforated sheet with 40 - 50% open area.4. The dashed lines on the test fan inlet indicate an inlet bell and one equivalent duct diameter which may be used for inlet duc

44、t simulation.5. The inlet opening of the variable resistance box must be sufficiently large to allow the test fan to operate at the airflow rate of interest.6. The chamber pressure Ps7is maintained at zero for all determination points.7. In lieu of a variable resistance box, any ANSI/AMCA 210 inlet

45、test method may be used for the inlet side of the AMCA 260 test (see ANSI/AMCA 210 Figure 13, 14, 15, or 16).Flow and Pressure FormulaeThe formulae for flow rates are given in ANSI/AMCA 210 Figure 11 or 12. The inlet density given in Section 9.1.1 of this stan-dard is substituted for the inlet densi

46、ty defined in ANSI/AMCA 210. Formulae relating to fan outlet velocity (V2), outlet velocity pressure (Pv2), and outlet total pressure (Pt2) can be ignored.Ps= -Pt8Pt1= Pt8See Section 8.1 to determine Pt8when Ps8is measured instead of Pt8.Figure 1Test Setup to Determine Induced Flow Outlet AirflowAMC

47、A 210FIGURE 11 or 12CHAMBERPs7MJ/20.2N (min.)0.3N (min.) 0.3N (min.)VARIABLERESISTANCEBOXSettling Means0.1N (min.)(See Section 8.1)Ntd8Pt8PL.8 PL.1 PL.2ANSI/AMCA 260-13 | 5Figure 2*Induced Flow Fan Nozzle and Windband*Taken from AMCA Publication 211, where it is listed as Figure A.36DFEGBACA Nozzle

48、inlet area after blade dischargeB Nozzle heightC Nozzle discharge areaD Windband inlet areaE Windband heightF Windband discharge areaG Overlap between nozzle and windbandAIR MOVEMENT AND CONTROLASSOCIATION INTERNATIONAL, INC.30 West University DriveArlington Heights, IL 60004-1893 U.S.A.Tel: (847) 3

49、94-0150 Fax: (847) 253-0088 Email : infoamca.org Web: www.amca.orgThe Air Movement and Control Association International Inc. is a not-for-profit international association of the worlds manufacturers of related air system equipment, primarily but not limited to fans, louvers, dampers, air curtains, airflow measurement stations, acoustic attenuators and other air system components for the industrial, co