1、The International Authority on Air System ComponentsAIR MOVEMENT AND CONTROL ASSOCIATION INTERNATIONAL INC.ANSI/AMCA Standard 240-15Laboratory Methods of TestingPositive Pressure Ventilators for Aerodynamic Performance RatingAn American National Standard Approved by ANSI on May 9, 2015AIR MOVEMENT A
2、ND CONTROLASSOCIATION INTERNATIONAL INC.30 West University DriveArlington Heights, IL 60004-1893 U.S.Tel: (847) 394-0150 Fax: (847) 253-0088 Email: publicationsamca.org Web: www.amca.org The Air Movement and Control Association International Inc. is a not-for-profit international association of the
3、worlds manufacturers of 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.ANSI/AMCA Standard 240-15Laboratory Methods of Te
4、stingPositive Pressure Ventilators for Aerodynamic Performance RatingAir Movement and Control Association International30 W. University DriveArlington Heights, Illinois60004Authority AMCA Standard 240-15 was adopted by the membership of the Air Movement and Control Association International Inc. on
5、March 24, 2015. It was approved by the American National Standards Institute on May 8, 2015.Copyright 2006 by Air Movement and 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 S
6、tates Copyright Act without the permission of the copyright owner is unlawful. Requests for permission or further information should be addressed to the executive direc-tor, Air Movement and Control Association International Inc. at 30 West University Drive, Arlington Heights, IL 60004-1893 U.S.Obje
7、ctions Air Movement and Control Association International Inc. will consider and take action upon all written complaints regarding its standards, certification programs or interpretations thereof. For information on procedures for submitting and handling complaints, write toAir Movement and Control
8、Association International30 West University DriveArlington Heights, IL 60004-1893 U.S.A.AMCA International IncorporatedEuropean AMCAAvenue des Arts, numro 46 Bruxelles (1000 Bruxelles)Asia AMCA Sdn BhdNo. 7, Jalan SiLC 1/6,Kawasan Perindustrian SiLC Nusajaya,Mukim Jelutong, 79200 Nusajaya, JohorMala
9、ysiaDisclaimer AMCA uses its best efforts to produce publications for the benefit of the industry and the public in light of available information and accepted industry practices. However, AMCA does not guarantee, certify or assure the safety or performance of any products, components or systems tes
10、ted, designed, installed or operated in accordance with AMCA publications or that any tests conducted under its publications will be non-hazardous or free from risk.AMCA PublicationsFernando Ruiz P.E., M.A. Equipos Electromecnicos, S.A. de C.V.David Ortiz Soler Y PalauRoger Weinmeister Super Vacuum
11、MfgJohan Gidstedt Tempest Technology Corp.Tim Orris AMCA StaffReview CommitteeRelated AMCA DocumentsRelated Publications AMCA Publication 11, Certified Ratings Program Operating ManualAMCA Publication 111, Laboratory Accreditation ProgramAMCA Publication 211, Certified Ratings Program Air Performanc
12、eRelated Standards ANSI/AMCA Standard 210, Laboratory Methods of Testing Fans for Aerodynamic Performance RatingContents1. Purpose .12. Scope.13. Definitions/Units of Measure/Symbols13.1 Definitions .13.2 Units of measure 23.3 Symbols .24. Instruments and Methods of Measurement24.1 Manometers and ot
13、her pressure indicating instruments 24.2 Pressure indicating instrument PPV static pressure 24.3 Other pressure measurement systems .25. Equipment and Setup45.1 Setup .45.2 Chamber 45.3 Chamber entrance .45.4 Fuel 46. Observations and Conduct of Test.46.1 Determinations46.2 PPV engine test speed .46
14、.3 Exhaust venting .47. Calculations .47.1 PPV airflow rate.47.2 Static pressure as a function of airflow rate57.3 Airflow rate at free delivery.58. Results of Test and Report .58.1 Results 58.2 Report 58.3 Performance curve.5Annex A References11ANSI/AMCA 240-15 | 1Laboratory Methods of TestingPosit
15、ive Pressure Ventilators for Aerodynamic Performance Rating1. PurposeThis standard establishes a uniform method of laboratory testing for the determination of the aerodynamic perfor-mance of a positive pressure ventilator (PPV) in terms of airflow rate, pressure, air density and rotational speed, fo
16、r performance rating or guarantee purposes.It is not the purpose of this standard to specify a testing procedure for the design, production or field test of any PPV, nor is it the purpose for the standard to serve as a manual for the construction, validation or calibration of the test facility.Backg
17、round:Prior to the original publication of this standard in 1996, posi-tive pressure ventilators (PPVs) were tested to ANSI/AMCA Standard 210 1. The scope of ANSI/AMCA Standard 210, however, includes only air moving devices designed with the impeller enclosed within a shroud or housing. Due to varia
18、-tions in the design of PPVs, some could be tested to ANSI/AMCA Standard 210 while others could not. In 1992, AMCA set out to develop a single method of test applicable to all PPVs by creating the AMCA Standard 240 Draft Committee.The test method devised by the committee is substantially the same as
19、 the outlet chamber test setup described in ANSI/AMCA Standard 210. The principal difference between ANSI/AMCA Standard 210 and ANSI/AMCA Standard 240 is that in ANSI/AMCA Standard 210 the outlet of the test unit is either mounted directly to the test chamber or connected to a duct that is mounted o
20、n the test chamber. In ANSI/AMCA Standard 240, the test unit discharge is directed toward a doorway-sized opening into the test chamber. This setup approximates a real-world application of the equipment and also accounts for entrained airflow. ANSI/AMCA Standard 240 is a special case of ANSI/AMCA St
21、andard 210. Therefore, a sizeable portion of the standard originates in ANSI/AMCA Standard 210. This latest edition replaces many sections of text with reference to the parent standard in an effort to simplify the standard by emphasizing differences over similarities.2. ScopeThis standard may be use
22、d as the basis for the test of a PPV when air is used as the test gas. Each test shall be limited to one PPV per test. A PPV tested in accordance with this standard shall be freestanding and without a duct-work connection to the test chamber, thereby allowing for the measurement of entrained airflow
23、.Any item of equipment designed or intended for applica-tions other than positive pressure ventilation is not within the scope of this standard.The parties to a test for guarantee purposes may agree in writing on exceptions to this standard prior to the test. However, only a test that does not viola
24、te the mandatory requirements of this standard shall be designated as a test conducted in accordance with this standard.3. Definitions/Units of Measure/Symbols3.1 DefinitionsFor the purposes of this standard, the definitions in Section 3.1 apply. All other definitions shall conform to ANSI/AMCA Stan
25、dard 210, Section 3.3.1.1 Positive pressure ventilator (PPV)A portable fan that can be positioned relative to an opening of an enclosure and cause it to be positively pressurized by discharge air velocity. It is principally used by firefighters to mitigate the effect of smoke and is also used to ass
26、ist in inflating hot air balloons 2.3.1.2 MotorA drive device other than an internal combustion engine, such as an electric motor, water turbine, hydraulic motor, air motor and similar devices3.1.3 EngineA drive device that produces power through internal combus-tion and that uses a fuel such as gas
27、oline.3.1.4 PPV positionThe point representing a PPV position in three-dimensional space is taken as the intersection between the PPV axial centerline and the plane perpendicular to the centerline that contains the PPV center of the PPV impeller hub. All measurements pertaining to the PPV must be re
28、ferenced to this point.3.1.5 SetbackThe horizontal distance between the PPV position and the opening to the test chamber, within a vertical plane perpen-dicular to the plane defined by the chamber opening.3.1.6 HeightThe vertical distance between the PPV position and the flat, horizontal surface on
29、which the PPV is situated.2 | ANSI/AMCA 240-153.1.7 TiltThe angle between the PPV axial centerline and the hori-zontal plane.3.1.8 PPV speedThe rotational speed of the PPV impeller.3.1.9 TestA series of determinations for various points of operation of a PPV.3.1.10 Shall and shouldThe word “shall” i
30、s understood as mandatory and the word “should” as advisory.3.2 Units of measureThe units of measure used in this standard shall conform to ANSI/AMCA Standard 210, Annex A.3.3 SymbolsThe symbols listed in Table 1 apply for the purposes of this standard. All others shall conform to ANSI/AMCA Standard
31、 210, Section 4.4. Instruments and Methods of MeasurementIn addition to the following, the manufacturer shall adhere to the requirements of ANSI/AMCA Standard 210, Section 5, as applicable.4.1 Manometers and other pressure indicating instrumentsPressure (except PPV static pressure) shall be measured
32、 on a manometer of the liquid column type using inclined legs, vertical legs or any other instrument having a maxi-mum uncertainty of 1% over the maximum observed read-ing or 1 Pa (0.005 in. wg), whichever is larger.4.2 Pressure indicating instrument PPV static pressurePPV static pressure shall be m
33、easured with a pressure transducer having an accuracy equal to or better than 0.5% as stated by the manufacturer.4.3 Other pressure measurement systemsPressure measurement systems consisting of sensors and indicators other than manometers and static pressure taps may be used for all pressures except
34、 PPV static pressure, if the combined uncertainty of the system does not exceed the combined error for an appropriate combination of manom-eters and static pressure taps. For a system used to deter-mine pressure, the contribution to the combined uncertainty of the pressure measurement shall not exce
35、ed that corre-sponding to 1% of the maximum observed pressure differ-ential reading during a test (indicator tolerance) plus 1% of the actual reading (averaging accuracy). See ANSI/AMCA Standard 210, Section 5.2.5, note 1.5. Equipment and SetupIn addition to the following, the manufacturer shall adh
36、ere to the requirements of ANSI/AMCA Standard 210, Section 6, as applicable.5.1 SetupThe PPV under test shall be set up for test as shown in Figure 2.The values for s, h, and are set to simulate the intended application.5.2 ChamberA chamber shall be incorporated in the laboratory setup to provide a
37、measurement station and to simulate a condition the PPV is expected to encounter in service. The chamber shall meet the proportionality and performance require-ments of ANSI/AMCA Standard 210. A chamber may have a circular or rectangular cross-sectional shape. The dimen-sion M in the test setup diag
38、ram is the inside dimension of a circular chamber or the equivalent diameter of dimensions a and b where:Mab= (/)4 piThe chamber shall have a cross-sectional area at least 10 times the included face area of the PPV impeller.5.3 Chamber entranceThe entrance to a chamber shall be completely sealed wit
39、h the exception of a “doorway” opening having a height of 2.03 m (80 in.) and a width of 0.91 m (36 in.) centered widthwise across the entrance plane of the chamber.A flat, horizontal surface shall extend from the rear of the test unit to the front edge of the chamber entrance. This surface shall be
40、 level with the bottom edge of the chamber entrance and shall have a minimum width equal to or exceeding the width of the chamber entrance or the width of the test unit, whichever is greater.ANSI/AMCA 240-15 | 3Table 1Symbols and SubscriptsSymbol Description SI Unit I-P UnitajVariable in polynomial
41、coefficient equation dimensionlessbjVariable in polynomial coefficient equation dimensionlessG Variable in polynomial coefficient equation dimensionlessh Height m ftKjPolynomial coefficient dimensionlessm Number of samples taken dimensionlessn Number of determinations dimensionlessPsPPV static press
42、ure Pa in. wgPsxStatic pressure at Plane X Pa in. wgQ PPV airflow rate m3/s ft3/minQxAirflow rate at Plane X m3/s ft3/minQfAirflow rate at free delivery m3/s ft3/mins Setback m ftj Tilt degrees5.4 FuelA PPV driven by a gasoline engine shall be tested with stan-dard pump gasoline with an 87 octane ra
43、ting and no more than 10% methanol. No additional chemical shall be added.6. Observations and Conduct of TestIn addition to the following, the manufacturer shall adhere to the requirements of ANSI/AMCA Standard 210, Section 7, as applicable.6.1 DeterminationsTo determine the aerodynamic performance
44、of a PPV near free delivery, determinations shall be taken for chamber static pressures (Ps7) ranging from 25 Pa (0.1 in. wg) to -25 Pa (-0.1 in. wg). If a chamber static pressure of 25 Pa (0.1 in. wg) cannot be obtained, the highest obtainable static pres-sure shall be used as the upper limit, and
45、the negative of this value shall be considered the lower limit. Plans shall be made to vary the throttling device such that the test points will be well spaced in terms of static pressure. At least 10 determinations shall be taken per test. Half of these deter-minations shall be taken at a positive
46、static pressure and half shall be taken at a negative static pressure.6.2 PPV engine test speedFor a PPV powered by an internal combustion engine, the maximum loaded engine rpm allowed by the manufacturer is the maximum engine rpm allowed during the test. The maximum loaded rpm for the engine shall
47、be attested to by letter or certificate from the engine manufacturers corpo-rate offices. Only stock or production model engines shall be used for testing.6.3 Exhaust ventingA PPV driven by an internal combustion engine shall have exhaust fumes vented away from the test area.Proper precautions shall
48、 be taken to minimize the inha-lation of fuel or motor exhaust fumes during testing. Any type of fume exhaust system shall be designed so as to not interfere with the airflow in the test area or affect motor performance. The exhaust venting system shall maintain zero static pressure at the exhaust p
49、ort throughout the test. Figure 1 illustrates a fume exhaust setup.7. CalculationsIn addition to the following, the manufacturer shall adhere to the requirements of ANSI/AMCA Standard 210, Section 8, as applicable.7.1 PPV airflow rateThe PPV airflow rate (Q) at test conditions shall be obtained from the equation of continuity:QQ Q=7557Eq. 7.14 | ANSI/AMCA 240-157.2 Static pressure as a function of airflow rateThe relationship between PPV static pressure and PPV airflow rate, for the range of static pressure tested, is repre-sented by the second order poly
