1、 2005 STANDARD for 4100 N. FAIRFAX DR., SUITE 200 ARLINGTON, VIRGINIA 22203 RATING OF SOUND AND VIBRATION FOR REFRIGERANT COMPRESSORS Standard 530 Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARI Not for ResaleNo reproduction or networking permitted witho
2、ut license from IHS-,-,-IMPORTANT SAFETY DISCLAIMER ARI does not set safety standards and does not certify or guarantee the safety of any products, components or systems designed, tested, rated, installed or operated in accordance with this standard/guideline. It is strongly recommended that product
3、s be designed, constructed, assembled, installed and operated in accordance with nationally recognized safety standards and code requirements appropriate for products covered by this standard/guideline. ARI uses its best efforts to develop standards/guidelines employing state-of-the-art and accepted
4、 industry practices. ARI does not certify or guarantee that any tests conducted under its standards/guidelines will be non-hazardous or free from risk. Note: This standard supersedes ARI Standard 530-95. Note: This version of the standard differs from that of 1995 in the following ways: 1. The follo
5、wing requirements were added: Reverberation room tests shall be conducted using the Comparison Method in accordance with ANSI Standard S12.51 ISO 3741. A Reference Sound Source (RSS) shall be calibrated in accordance with ARI Standard 250. Qualification to the 63 Hz Octave Band shall be in accordanc
6、e with ARI Standard 280. 2. A change was made to report vibration data and gas pulsation data in “rms” not “peak to peak”. Price $15.00 (M) $30.00 (NM) Copyright 2005, by Air-Conditioning and Refrigeration Institute Printed in U.S.A. Registered United States Patent and Trademark Office Copyright Air
7、-Conditioning and Refrigeration Institute Provided by IHS under license with ARI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE OF CONTENTS SECTION PAGE Section 1. Purpose .1 Section 2. Scope 1 Section 3. Definitions 1 Section 4. Test Requirements 3 Section
8、5. Rating Requirements 7 Section 6. Minimum Data Requirements for Published Ratings.7 Section 7. Conformance Conditions8 TABLES Table 1. Standard Frequency Bands.5 Table 2. A-Weighting Adjustments5 FIGURES Figure 1. Wave Amplitude Descriptors .3 Figure 2. Vibration Test Locations at Suction, Dischar
9、ge, and Mounting Locations .6 APPENDICES Appendix A. References - Normative9 Appendix B. References - Informative 10 Appendix C. Conversion Methods and Examples Informative 11 Appendix D. ARI Standard 530 Report - Operational Data Informative .12 Appendix E. ARI Standard 530 Report - Sound Test Data
10、 Informative 13 Appendix F. ARI Standard 530 Report - Vibration Data Informative .14 Appendix G. ARI Standard 530 Report - Gas Pulsation Data Informative 15 Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARI Not for ResaleNo reproduction or networking permi
11、tted without license from IHS-,-,-ARI STANDARD 530-2005 1 RATING OF SOUND AND VIBRATION FOR REFRIGERANT COMPRESSORS Section 1. Purpose 1.1 Purpose. The purpose of this standard is to establish for the rating of sound and vibration for Refrigerant Compressors: definitions; test requirements; rating r
12、equirements; minimum data requirements for published ratings; and conformance conditions. 1.1.1 Intent. This standard is intended for the guidance of the industry, including manufacturers, engineers, installers, contractors and users. 1.1.2 Review and Amendment. This standard is subject to review an
13、d amendment as technology advances. Section 2. Scope 2.1 Scope. This standard applies to External-drive, Hermetic and Semi-Hermetic Refrigerant Compressors. In the case of External-drive Refrigerant Compressors, the driving mechanism shall be excluded from the sound and vibration measurements. Howev
14、er, for Semi-Hermetic Refrigerant Compressors where the driving mechanism is an integral part of the compressor assembly as defined in Section 3, it shall be included in the measurements. 2.1.1 Exclusion. An External-drive Refrigerant Compressor, coupling and motor assembly mounted on a common base
15、is excluded from this standard, since the vibration measurement method specified in the standard does not apply to this type of product. Section 3. Definitions All terms in this document shall follow the standard industry definitions in the current edition of ASHRAE Terminology of Heating, Ventilati
16、on, Air-Conditioning, and Refrigeration unless otherwise defined in this section. 3.1 Acceleration (g). The ratio of acceleration measured at a point on a structure to the gravitational acceleration, 9.807 m/s2386.1 in/s2. 3.2 Amplitude Peak (pk). For sine waves, the peak amplitude is 1.414 times th
17、e rms amplitude. 3.3 Amplitude Peak-to-Peak (pk-pk). For sine waves, the peak-to-peak is two times the peak amplitude. 3.4 Comparison Method. A method of determining Sound Power Level of the equipment under test in a reverberation room by comparing the average Sound Pressure Level of that equipment
18、to the average Sound Pressure Level of a Reference Sound Source of known Sound Power Level. The difference in Sound Power Level is equal to the difference in Sound Pressure Level when conditions in the room are the same for both sets of measurements. 3.5 “Flat Top“ Window. A weighting function appli
19、ed during Fast Fourier Transform analysis to obtain the true amplitudes of periodic components of a time signal. It is designed specifically to minimize the amplitude error. It facilitates calibration by using a calibration tone which may lie anywhere between two lines of the analyzer. Maximum ampli
20、tude error is less than 0.01 dB. 3.6 Fundamental Frequency. The speed of the compressor drive/shaft expressed in Hz. 3.6.1 Fundamental Pulsation Frequency. The dominant frequency observed in the pressure pulse. For reciprocating compressors, where all events are equally spaced in time, this is usual
21、ly the number of cylinders times the fundamental frequency. Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-ARI STANDARD 530-2005 2 3.7 Harmonics. Sinusoidal quantity that
22、 has a frequency which is an integral multiple of the frequency of the periodic quantity to which it is related. 3.8 Hertz (Hz). A unit of frequency equal to one cycle per second. 3.9 Octave Band. A band of sound covering a range of frequencies such that the highest is twice the lowest. Note: the Oc
23、tave Bands used in this standard are those defined in ANSI Standard S1.11. 3.10 One-Third Octave Band. A band of sound covering a range of frequencies such that the highest is the cube root of two times the lowest. Note: The One-Third Octave Bands used in this standard are those shown in Table 1 and
24、 as defined in ANSI Standard S1.11. 3.11 Pulsation. The fluctuation of the pressure in a discharge or suction line about some mean pressure. 3.12 Rating Conditions. Any set of operating conditions under which a single level of performance results and which causes only that level of performance to oc
25、cur. 3.12.1 Standard Rating Conditions. Rating Conditions used as the basis of comparison for performance characteristics. 3.13 Reference Sound Source (RSS). A portable, aerodynamic sound source that produces a known stable broad band sound power output. 3.14 Refrigerant Compressor. 3.14.1 External-
26、drive (Open Type) Refrigerant Compressor. A compressor with a shaft or other moving parts extending through a casing to be driven by an external power source, thus requiring a shaft seal or equivalent rubbing contact between fixed and moving part. 3.14.2 Hermetic Refrigerant Compressor. A compressor
27、 and motor enclosed in the same housing without an external shaft or shaft seals. The motor operates in the refrigerant. 3.14.3 Semi-Hermetic Refrigerant Compressor. A compressor directly coupled to an electric motor and contained within a gas-tight bolted casing. The motor operates in the refrigera
28、nt. 3.15 Root Mean Square (rms). The square root of the average of the sum of the squared instantaneous values of a function measured over the sample period. 2/112=nSSniirmswhere: S = dynamic signal from sound, vibration or pressure measuring instruments (Figure 1 depicts the peak to peak and the rm
29、s wave amplitude levels of a non-sinusoidal vibration or pressure signal.) i = individual sample n = number of sample measurements Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARI Not for ResaleNo reproduction or networking permitted without license from
30、IHS-,-,-ARI STANDARD 530-2005 3 32.52Figure 1. Wave Amplitude Descriptors 3.16 “Shall” or “Should“. “Shall” or “Should” shall be interpreted as follows: 3.16.1 Shall. Where “shall” or “shall not” is used for a provision specified, that provision is mandatory if compliance with the standard is claime
31、d. 3.16.2 Should. “Should” is used to indicate provisions which are not mandatory but which are desirable as good practice. 3.17 Sound Power Level (Lw). Ten times the logarithm to the base ten of the ratio of the sound power radiated by the source to a reference power, expressed in decibels (dB). Th
32、e reference sound power used in this standard is one picowatt (pW). 3.17.1 A-Weighted Sound Power Level (LWA). The logarithmic summation of A-Weighted, One-Third Octave Band levels. 3.18 Sound Pressure Level (Lp). Twenty times the logarithm to the base ten of the ratio of a given sound pressure to a
33、 reference sound pressure of 20 Pa, expressed in decibels (dB). 3.19 Working Load. The portion of the compressor weight supported by the individual isolator. Section 4. Test Requirements 4.1 General Test Requirements 4.1.1 Compressor Mounting. The compressor to be tested should be mounted on a mass
34、at least four times the mass of the compressor. The isolators used shall be those recommended for that particular compressor by the manufacturer. Isolator(s) stiffness in N/m lb/in at the Working Load shall be reported (Report Form 1, Appendix D). 4.1.2 Compressor Line Connections. To minimize the e
35、xternal load on the compressor, discharge and suction line connections shall be made at the compressor with flexible tubing, such as an extruded Teflon tube with a stainless steel wire braid cover, with a length to diameter ratio of at least 50. The lines need to be supported to minimize the static
36、load on the compressor. To provide uniform flow, the lines shall have the same nominal inside diameter as the tubing size recommended by the compressor manufacturer. If mechanical connectors are used, the inner diameter of the connector shall be the same as the inner diameter of the refrigerant line
37、, unless the connector is part of the compressor assembly. -2-1.5-1-0.500.511.50 50 100 150 200 250 300 350 400TimeAmplitudePositive Peak Peak to Peakrms LevelCopyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARI Not for ResaleNo reproduction or networking per
38、mitted without license from IHS-,-,-ARI STANDARD 530-2005 4 In the event that flexible lines are not commercially available, rigid tubing may be used, in a setup that provides flexibility for either the suction and/or discharge lines. A complete detailed sketch of the tubing geometry used shall be p
39、rovided with the Report Form 3, Appendix F. All refrigerant lines not part of the compressor assembly shall be installed and treated to minimize their acoustic contribution. 4.1.3 Electrical Power Supply. Test voltage and frequency shall be as specified on the compressor nameplate. Where dual voltag
40、es (i.e., 230/460 V) are shown, either voltage may be used. Where extended voltage is specified (i.e., 208/230 V), the higher voltage shall be used. When dual frequency is indicated, tests shall be conducted at both frequencies. Test voltage shall be 2 % of that specified and the frequency shall be
41、held to 0.5 Hz tolerance. 4.1.4 Test Conditions. The compressor shall be tested after thermal and operating stabilization has been reached. The type of oil and refrigerant used for each test shall be identified. Standard Rating Conditions are defined in 5.5. 4.1.5 Narrow Band Measurements. When usin
42、g digital Fourier analyzers to measure discrete spectrum component amplitudes, a Flat Top Window shall be used. Record the amplitude at each peak. The bandwidth shall be no more than 1/5 of the Fundamental Frequency. 4.2 Sound Level Measurements. 4.2.1 Sound Test Requirements. Sound tests shall be c
43、onducted in a free field in accordance with ANSI Standard S12.35 or in a reverberation room meeting the requirements of ANSI Standard S12.51 ISO 3741. For reverberation room measurements, the Comparison Method shall be used to compute the Sound Power Levels using a Reference Sound Source (RSS) that
44、is calibrated in accordance with ARI Standard 250. Qualification to the 63 Hz Octave Band shall be in accordance with ARI Standard 280. The tests shall be conducted at operating conditions specified in 4.1.3, 4.1.4, and 5.5. 4.2.1.1 Sound Power Levels shall be determined in decibels with respect to
45、1 pW for the One-third Octave Bands listed in Table 1. Throughout this frequency range, the laboratory facility shall have been qualified for pure tone response in accordance with ANSI Standards S12.51 ISO 3741 or ANSI S12.35. In the case of free field type testing, the measurement space shall be qu
46、alified in accordance with ANSI S12.35. 4.3 Vibration Measurements. 4.3.1 Operating Conditions. The tests shall be conducted at the operating conditions described in 4.1.3, 4.1.4 and 5.5. 4.3.2 Measurement Points. Vibration measurements shall be taken at all mounting locations (1, 2, 3, 4), as close
47、 to the mounting point as possible. In addition, measurements shall also be taken on the compressor shell or body close to the location of the suction and the discharge fittings (Figure 2). 4.3.3 Measurement Directions. Vibration measurements shall be taken in three orthogonal directions at the suct
48、ion and discharge fitting locations and in three orthogonal directions at the mounting locations (Figure 2). At the suction and discharge fitting location, one direction shall be parallel to the centerline of the tubing at the fitting. One of the remaining two directions should describe the tangenti
49、al motion of the compressor body at the fitting, if applicable, and shall be described in a sketch. The third direction is then defined by the orthogonality requirement (Figure 2). Copyright Air-Conditioning and Refrigeration Institute Provided by IHS under license with ARI Not for ResaleNo reproduction or networking permitted without license from IHS-,-,
