ASHRAE 130-2016 Laboratory Methods of Testing Air Terminal Units.pdf

1、ANSI/ASHRAE Standard 130-2016(Supersedes ANSI/ASHRAE Standard 130-2008)Laboratory Methods ofTesting Air Terminal UnitsApproved by ASHRAE on October 31, 2016, and by the American National Standards Institute on November 1, 2016.ASHRAE Standards are scheduled to be updated on a five-year cycle; the da

2、te following the Standard number is the year ofASHRAE approval. The latest edition of an ASHRAE Standard may be purchased on the ASHRAE website (www.ashrae.org)or from ASHRAE Customer Service, 1791 Tullie Circle, NE, Atlanta, GA 30329-2305. E-mail: ordersashrae.org. Fax: 678-539-2129. Telephone: 404

3、-636-8400 (worldwide) or toll free 1-800-527-4723 (for orders in US and Canada). For reprintpermission, go to www.ashrae.org/permissions. 2016 ASHRAE ISSN 1041-2336SPECIAL NOTEThis American National Standard (ANS) is a national voluntary consensus Standard developed under the auspices of ASHRAE. Con

4、sensus is definedby the American National Standards Institute (ANSI), of which ASHRAE is a member and which has approved this Standard as an ANS, as“substantial agreement reached by directly and materially affected interest categories. This signifies the concurrence of more than a simple majority,bu

5、t not necessarily unanimity. Consensus requires that all views and objections be considered, and that an effort be made toward their resolution.”Compliance with this Standard is voluntary until and unless a legal jurisdiction makes compliance mandatory through legislation. ASHRAE obtains consensus t

6、hrough participation of its national and international members, associated societies, and public review.ASHRAE Standards are prepared by a Project Committee appointed specifically for the purpose of writing the Standard. The ProjectCommittee Chair and Vice-Chair must be members of ASHRAE; while othe

7、r committee members may or may not be ASHRAE members, allmust be technically qualified in the subject area of the Standard. Every effort is made to balance the concerned interests on all Project Committees. The Senior Manager of Standards of ASHRAE should be contacted fora. interpretation of the con

8、tents of this Standard,b. participation in the next review of the Standard,c. offering constructive criticism for improving the Standard, ord. permission to reprint portions of the Standard.DISCLAIMERASHRAE uses its best efforts to promulgate Standards and Guidelines for the benefit of the public in

9、 light of available information and acceptedindustry practices. However, ASHRAE does not guarantee, certify, or assure the safety or performance of any products, components, or systemstested, installed, or operated in accordance with ASHRAEs Standards or Guidelines or that any tests conducted under

10、its Standards or Guidelineswill be nonhazardous or free from risk.ASHRAE INDUSTRIAL ADVERTISING POLICY ON STANDARDSASHRAE Standards and Guidelines are established to assist industry and the public by offering a uniform method of testing for rating purposes, bysuggesting safe practices in designing a

11、nd installing equipment, by providing proper definitions of this equipment, and by providing other informationthat may serve to guide the industry. The creation of ASHRAE Standards and Guidelines is determined by the need for them, and conformanceto them is completely voluntary.In referring to this

12、Standard or Guideline and in marking of equipment and in advertising, no claim shall be made, either stated or implied,that the product has been approved by ASHRAE.ASHRAE Standard Project Committee 130Cognizant TC: 5.3, Room Air Distribution, and TC 9.1, Large Building Air-Conditioning SystemsSPLS L

13、iaison: Peter SimmondsBradley Tully*, Chair James R. Kline* Kezhen Shen*Herman F. Behls* Frederick A. Lorch* Jack L. Stegall*David A. John* Gary L. Miller* Randal S. Zimmerman* Denotes members of voting status when the document was approved for publicationIn memory of Jerry SipesASHRAE STANDARDS COM

14、MITTEE 20162017Rita M. Harrold, Chair Michael W. Gallagher Cyrus H. NasseriSteven J. Emmerich, Vice-Chair Walter T. Grondzik David RobinJames D. Aswegan Vinod P. Gupta Peter SimmondsNiels Bidstrup Susanna S. Hanson Dennis A. StankeDonald M. Brundage Roger L. Hedrick Wayne H. Stoppelmoor, Jr.Drury B.

15、 Crawley Rick M. Heiden Jack H. ZarourJohn F. Dunlap, Srinivas Katipamula William F. Walter, BOD ExOJames W. Earley, Jr. Cesar L. Lim Patricia Graef, COKeith I. Emerson Arsen K. MelikovJulie M. Ferguson R. Lee Millies, Jr.Stephanie C. Reiniche, Senior Manager of Standards ASHRAE (www.ashrae.org). Fo

16、r personal use only. Additional reproduction, distribution, or transmission in either print or digital form is not permitted without ASHRAEs prior written permission.CONTENTSANSI/ASHRAE Standard 130-2016,Laboratory Methods of Testing Air Terminal UnitsSECTION PAGEForeword .21 Purpose.22 Scope23 Defi

17、nitions and Symbols24 Instrumentation .55 Test Methods 56 References15Normative Appendix A: Rotating Vane Anemometer Flow Measuring System.27Normative Appendix B: Equations.28Informative Appendix C: ExampleCalculating Terminal Unit Loss Coefficients.29Informative Appendix D: ExampleCasing Leakage Te

18、st .32Informative Appendix E: Effect of Partially Closed Control Damper on Airflow Sensor Performance.34Informative Appendix F: ExampleMixing Test .35Informative Appendix G: ExampleStratification Test .36Informative Appendix H: Acoustically Isolated Duct37Informative Appendix I: Reflection of Airbor

19、ne Noise at Duct Determinations 38NOTEApproved addenda, errata, or interpretations for this standard can be downloaded free of charge from the ASHRAEwebsite at www.ashrae.org/technology. 2016 ASHRAE1791 Tullie Circle NE Atlanta, GA 30329 www.ashrae.org All rights reserved.ASHRAE is a registered trad

20、emark of the American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc.ANSI is a registered trademark of the American National Standards Institute. ASHRAE (www.ashrae.org). For personal use only. Additional reproduction, distribution, or transmission in either print or digital f

21、orm is not permitted without ASHRAEs prior written permission.2 ANSI/ASHRAE Standard 130-2016(This foreword is not part of this standard. It is merelyinformative and does not contain requirements necessaryfor conformance to the standard. It has not been pro-cessed according to the ANSI requirements

22、for a standardand may contain material that has not been subject topublic review or a consensus process. Unresolved objec-tors on informative material are not offered the right toappeal at ASHRAE or ANSI.)FOREWORDFirst published in 1996 and reaffirmed in 2006, Standard 130specifies instrumentation,

23、test installation methods, and pro-cedures for determining the capacity and related performancein a laboratory controlled environment of constant-volumeand variable-volume air terminal units. The standard is clas-sified as an ASHRAE standard method of measurement. Thisstandard is required for compli

24、ance with AHRI Standard 880.The 2016 revision of the standard includes updates andrevisions to all parts of the standard, including its title, pur-pose, and scope. It updates definitions, redefines airflow sen-sor performance testing, and adds a method to determineterminal-unit total pressure loss c

25、oefficients and the relation-ship between terminal-unit casing leakage and pressure. 1. PURPOSEThe standard specifies instrumentation, test installation meth-ods, and procedures for measuring the capacity and relatedperformance of constant-volume, variable-volume, and mod-ulating integral diffuser a

26、ir terminals.2. SCOPE2.1 The methods of test in this standard apply to air controldevices used in air distribution systems. These devices pro-vide control of air volume with or without temperature by oneor more of the following means and may or may not include afan:a. Fixed or adjustable directional

27、 vanes (i.e., bypass terminal)b. Pressure-dependent volume dampers or valves (includingair induction nozzles and dampers) c. Pressure-independent volume dampers or valves (includ-ing air induction nozzles and dampers)d. Integral heat exchangere. On/off fan controlf. Variable-speed fan controlg. Modu

28、lating integral diffuser terminals2.2 This standard covers test methods for use in determiningthe following performance characteristics:a. Sound powerb. Temperature mixing and stratificationc. Minimum operating pressured. Air leakagee. Induced airflowf. Fan airflowg. Fan motor electrical powerh. Con

29、densation i. Airflow sensor performance2.3 This standard shall not be used for field testing.3. DEFINITIONS AND SYMBOLS3.1 Definitionsaccuracy: degree of conformity of an indicated value to anaccepted standard value, or true value. The degree of inaccu-racy is known as “total measurement error” and

30、is the sum ofbias error and precision error.acoustically isolated duct: ductwork for which, in all fre-quency bands of interest, the breakout sound level is at least10 dB less than the transmitted sound level of the terminalunit under test. Refer to Informative Appendix G for a detailof an acoustica

31、lly isolated duct.air terminal unit: device that automatically modulates thevolume of air delivered to or removed from a defined space. amplification factor (F): ratio of sensor output (psensor) tovelocity pressure (pv) as defined by Equation 1: (1)whereF = amplification factor, dimensionlessPsensor

32、= sensor output, in. of water (Pa)pv= velocity pressure at sensor location,in. of water (Pa)Example: a sensor with a reading of 1.0 in. of water(250 Pa) pressure at a velocity pressure of 0.43 in. of water(108 Pa) has an amplification factor of 2.3.bias error: difference between the true value to be

33、 measuredand the indicated value from the measuring system that per-sists and is usually due to the particular instrument or tech-nique of measurement.bypass terminal unit: a terminal unit, typically having morethan one outlet, that uses a method of volume modulationwhereby airflow is varied by dist

34、ributing the volume requiredto meet the space requirements, the balance of supply/exhaustair being diverted away from the space.discharge sound power level: sound power that is transmittedfrom the terminal outlet.dual-duct terminal unit: air terminal that mixes varying por-tions of two independent s

35、ources of primary air.equivalent diameter: diameter of a circular-duct equivalentthat has a cross-sectional area equal to a particular rectangularduct. Equivalent diameter is calculated by the following equa-tion:(2)exhaust sound power level: sound power that is transmittedfrom an exhaust terminal i

36、nlet back to the room (counter tothe airflow).exhaust terminal unit: terminal unit for regulating exhaust orreturn airflow.Fpsensorpv-=De4A-0.5= ASHRAE (www.ashrae.org). For personal use only. Additional reproduction, distribution, or transmission in either print or digital form is not permitted wit

37、hout ASHRAEs prior written permission.ANSI/ASHRAE Standard 130-2016 3exhaust terminal-unit total leakage: total amount of the airin cubic feet per minute (litres per second) drawn through thecasing and a fully closed damper/valve into the airstream ofan exhaust terminal unit at a given outlet pressu

38、re.fan-powered terminal unitparallel-flow fan-powered terminal unit: a type ofinduction terminal unit in which the primary air inlet isin parallel to an integral fan, thus allowing the supply airto bypass the fan. The fan induces air from the inductionport.series-flow fan-powered terminal unit: a ty

39、pe of induc-tion terminal unit where the primary air inlet is in serieswith an integral fan, and where all air flows through thefan.fan-powered terminal unit efficiency: ratio of the total powerconsumed to delivered fan air volume.flow coefficient (K): the flow coefficient of terminal units iscalcul

40、ated from test data by Equation 3.(3)whereK = flow coefficient, cfm per (in. of water)0.5L/s per Pa0.5Q = actual terminal-unit airflow, cfm (L/s)psensor= sensor output, in. of water (Pa)induced airflow: air that is drawn into a terminal by means ofinduction and discharged through the terminal outlet

41、induction terminal unit: a terminal unit, typically havingmore than one inlet, that supplies varying proportions of pri-mary and induced air. This type of terminal excludes fan-powered terminal units.integral diffuser air terminal: diffuser with the features of anair terminal. Air is modulated by ou

42、tlet or inlet dampers.loss coefficient: a dimensionless fluid resistance coefficienthaving the same value in dynamically similar streams (i.e.,streams with geometrically similar stretches, equal Reynoldsnumbers, and equal values of other criteria necessary fordynamic similarity). The loss coefficien

43、t represents the ratioof total pressure loss to velocity pressure at the referencedcross section:(4)whereC = total pressure loss coefficient, dimensionlesspt= total pressure loss, in. of water (Pa)pvi= velocity pressure at referenced cross section i,in. of water (Pa)minimum operating pressure: the s

44、tatic or total pressuredrop through a terminal at a given airflow rate with thedamper/valve placed in its full-open position by its actuatorwhile the terminal is operating under steady-state control.modulating diffuser terminal unit: diffuser with features ofan air terminal unit and with an integral

45、 airflow controldevice.octave band: a frequency band with an upper frequency limittwice that of its lower frequency limit. Octave and one-thirdoctave bands are identified by their center frequencies, whichare the geometric means of the upper and lower band limits:. Three one-third octave bands make

46、upone octave band. Table 1 lists the upper, lower, and center fre-quencies for the preferred series of octave and one-thirdoctave bands.precision: the closeness of agreement among repeated mea-surements of the same characteristic by the same methodunder the same conditions.pressure-compensating cont

47、rol system: see pressure-inde-pendent control system.pressure-dependent control system: a control system inwhich the airflow through the air terminal varies with systempressure.KQpsensor0.5-=C ptpvi-=TABLE 1 Upper, Lower, and Center Frequencies for thePreferred Series Of Octave and One-Third Octave

48、BandsOctave BandOctave Bands, HzOne-Third Octave Bands, HzLower Center (f) Upper163 4550 5656 63 7171 80 902 125 90 100 112112 125 140140 160 1803 250 180 200 224224 250 280280 315 3554 500 355 400 450450 500 560560 630 7105 1000 710 800 900900 1000 12001200 1250 14006 2000 1400 1600 18001800 2000 2

49、2402240 2500 28007 4000 2800 3150 35503550 4000 45004500 5000 56008 8000 5600 6300 71007100 8000 90009000 10,000 11,200fcfupperflowe= ASHRAE (www.ashrae.org). For personal use only. Additional reproduction, distribution, or transmission in either print or digital form is not permitted without ASHRAEs prior written permission.4 ANSI/ASHRAE Standard 130-2016pressure-independent control system: control system inwhich the airflow through the air terminal is independent ofsystem pressure. Also known as “pressure-c