1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58ICS 23.140Turbocompressors Performance test code BRITISH STANDARDBS ISO 5389:2005BS ISO 5389:2005Th
2、is British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2006 BSI 31 January 2006ISBN 0 580 47631 6Cross-referencesThe British Standards which implement international publications referred to in this document may be found in the BSI Catalogue
3、 under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct
4、application. Compliance with a British Standard does not of itself confer immunity from legal obligations.Summary of pagesThis document comprises a front cover, an inside front cover, the ISO title page, pages ii to iv, pages 1 to 142, an inside back cover and a back cover.The BSI copyright notice d
5、isplayed in this document indicates when the document was last issued.Amendments issued since publicationAmd. No. Date CommentsA list of organizations represented on this committee can be obtained on request to its secretary. present to the responsible international/European committee any enquiries
6、on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK.National forewordThis British Standard reproduces verbatim ISO 5389:2005 and implements it as the UK national standard.The UK particip
7、ation in its preparation was entrusted to Technical Committee MCE/8, Compressors, pneumatic tools, pneumatic machines and vacuum technology, which has the responsibility to: aid enquirers to understand the text;Reference numberISO 5389:2005(E)INTERNATIONAL STANDARD ISO5389Second edition2005-12-15Tur
8、bocompressors Performance test code Turbocompresseurs Code dessais des performances BS ISO 5389:2005ii iiiContents Page Foreword iv 1 Scope 1 2 Normative references 1 3 Symbols and definitions .1 3.1 Symbols and units.1 3.2 Definitions 5 4 Guarantees .6 4.1 General6 4.2 Preconditions for the guarant
9、ee 7 4.3 Object of the guarantee.7 4.4 Supplementary guarantees.8 4.5 Guarantee comparison8 4.6 Guarantees for series production8 5 Measuring methods and measuring equipment.8 5.1 General8 5.2 Pressures9 5.3 Temperatures .10 5.4 Gas density.10 5.5 Gas composition10 5.6 Gas velocity11 5.7 Volume flow
10、 and mass flow11 5.8 Speed of rotation .12 5.9 Power 12 6 Performance test13 6.1 Preparation for the test .13 6.2 Execution of the test .13 6.3 Evaluation of test results 14 6.4 Measuring uncertainty of test results15 7 Conversion of test results to guarantee conditions 24 7.1 General24 7.2 Conversi
11、on .24 8 Guarantee comparison36 8.1 Object36 8.2 Execution36 8.3 Special notes45 9 Test report 46 Annex A (normative) Flow diagram and figures for volume flow ratio47 Annex B (normative) Tests for volume flow ratio beyond flow similarity.50 Annex C (normative) Correction method for the influence of
12、Reynolds Number on the performance of centrifugal compressors .55 Annex D (informative) Derivation of equations for calculating the uncertainty of measuring results.61 Annex E (informative) Special terms for compressors .63 Annex F (informative) Examples of acceptance test reports96 Bibliography 142
13、 BS ISO 5389:2005iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a s
14、ubject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission
15、(IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical comm
16、ittees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not
17、be held responsible for identifying any or all such patent rights. ISO 5389 was prepared by Technical Committee ISO/TC 118, Compressors and pneumatic tools, machines and equipment, Subcommittee SC 1, Process compressors. This second edition cancels and replaces the first edition (ISO 5389:1992), whi
18、ch has been technically revised. In particular, an improved flow Sheet for determination of setting conditions using similarity conditions has been integrated, taking into account the Reynolds number correction method. Three classes of conversion of test results have been defined, including tests be
19、yond flow similarity conditions. The subclause on measuring uncertainties has been revised. The tried and proven procedure for determination of measuring uncertainties using the difference method has been added in order to be able to meet all test requirements, including in particular those occurrin
20、g in the case of multicasing compressors and machine sets consisting of different driving machines and compressors. The subclause on guarantee comparison has been enlarged, taking into account all possible cases of performance curves and guarantee points. ISO 5389 was prepared, based on ASME PTC 101
21、and VDI 2045-12and VDI 2045-23. BS ISO 5389:20051Turbocompressors Performance test code 1 Scope This International Standard applies to performance tests on turbocompressors of all types. It does not apply to fans and high-vacuum pumps, or to jet-type compressors with moving drive components Turbocom
22、pressors comprise machines in which inlet, compression and discharge are continuous flow processes. The gas is conveyed and compressed in impellers and decelerated with further increase in pressure in fixed vaned or vaneless stators. This International Standard is intended to provide standard provis
23、ions for the preparation, procedure, evaluation and assessment of performance tests on compressors as specified above. The acceptance test of the performance is based on this performance test code. Acceptance tests are intended to demonstrate fulfilment of the order conditions and guarantees specifi
24、ed in the contract. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 51
25、67-1, Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full Part 1: General principles and requirements 3 Symbols and definitions 3.1 Symbols and units 3.1.1 Latin letters Symbol Meaning Unit A area m2a sonic velocity m/s B manuf
26、acturing tolerance % b outlet width of 1st impeller m c velocity m/s cp, cvspecific heat capacity kJ/(kgK) cievaluation coefficients D outer impeller diameter of the first impeller m f correction factor fxmean relative deviation BS ISO 5389:20052 Symbol Meaning Unit G quality grade % g local acceler
27、ation due to gravity m/s2h specific enthalpy kJ/kg k isentropic exponent kTisentropic exponent, temperature kVisentropic exponent, volume l length of column mm Ma Mach number Mttorque NmM molar mass kg/mol m temperature exponent m mass flow kg/s N speed of rotation 1/s n polytropic exponent P power
28、kWp pressure MPa (bar) Qheat flow kW R specific gas constant J/(kgK) Ra average roughness m Rmoluniversal gas constant J/(kmolK) Re Reynolds number S digital measuring step s specific entropy kJ/(kgK) T thermodynamic temperature K t temperature C u tip speed, referred to D m/su specific internal ene
29、rgy kJ/kg V confidence interval or measuring uncertainty v specific volume m3/kg Vvolume flow m3/s W result function w mass fraction X compressibility function XNratio of reduced speeds of rotation x vapour content referred to moist mass of vapour of the same gas kg/kg x(Subscript)vapour content of
30、vapour/gas mixtures referred to dry gas kg/kg Y compressibility function y function value BS ISO 5389:20053Symbol Meaning Unit y specific compression work kJ/kg Z compressibility factor z number of stage groups 3.1.2 Greek letters Symbol Meaning Unit coefficient of heat transfer W/(m2K) coefficient
31、of cubic expansion 1/K weighting factor difference calculation coefficient efficiency dynamic viscosity Ns/m2 ratio of (RZ1T1) values ratio of specific heat capacities polytropic ratio kinematic viscosity m2/s pressure ratio density kg/m3 relative uncertainty of measurement ratio of volume flow rati
32、os flow coefficient (Subscript)relative humidity reference process work coefficient angular speed 1/s 3.1.3 Subscripts Index Meaning 1 inlet (suction side) 2 outlet (discharge side) I, II, III, ., z stages, numbered in direction of flow at an infinitely large Reynolds number A uncooled section of an
33、 intercooled compressor air dry airamb ambient (air, temperature) an assumption, driving machine av average B cooled section of a multi-stage intercooled compressor cal calibration BS ISO 5389:20054 Index Meaning co converted to guarantee conditions cog converted to the pressure ratio and inlet volu
34、me flow of the guarantee point comb combined sections cond condensate cou coupling crit critical d dynamic dev deviation dr driving machine dry dry eff effectiveEx extreme value of g guarantee or reference conditions gas gas i ith term of a sum (i = 1, 2, 3, .) i internal in input j number of stage
35、group ( j = I, II, Ill, ., z) k isentropic exponent L leakage lub lubricant M measurement, motor m mass flow mech mechanical n standard state N frequency of rotation out output p polytropic P power Pr reference or standard process pr precalculated or predicted test results rad radiation and convecti
36、on ran relevant measuring range of instrument Re referred to Reynolds number red reduced speed ref reference value res result s isentropic sat saturated steam/vapour BS ISO 5389:20055Index Meaning seal sealing liquid side sidestream or extractions st static sup supply sur surfacesys system T isother
37、mal t temperature te test result term terminals tol permissible deviation tot total u tip or peripheral us usable V volume vap vapour, steam wet moist wf working fluid W cooling water or coolant x between inlet and outlet y function value Where no specific remark is made to the contrary, the thermod
38、ynamic variables of state used without indices in this International Standard describe total state. 3.2 Definitions For the purposes of this document, the following terms and definitions apply. Additional terms and definitions are given in Annex E. 3.2.1 ratio of volume flow ratios ()()1212teg/VVVV
39、=(1) 3.2.2 ratio of reduced speeds of rotation 11te11gNNRZ TXNRZ T=(2) BS ISO 5389:20056 3.2.3 tip Mach number u1uMaa= (3) 3.2.4 tip Reynolds number u1ubRe= (4) 3.2.5 volume flow coefficient 124VD u=(5) 3.2.6 reference process work coefficient PrPr2/2yu = (6) 3.2.7 enthalpy coefficient i2/2hu= (7) 3
40、.2.8 RZ1T1ratio ()()1111IjjRZ TRZ T=( )()11,B11I,BjjRZ TRZ T=(8) where I,B is the first stage of cooled section B 3.2.9 section one to several successive stages of a turbocompressor without intercooling through which the same mass flow flows 4 Guarantees 4.1 General The customer and the manufacturer
41、 shall make a contractual agreement specifying which properties and characteristics of the compressor are to be guaranteed and demonstrated by the acceptance test. Verification of these properties is effected by means of the values measured in the acceptance test and converted to the guarantee condi
42、tions. Fulfilment of the guarantee may be demanded only if all components of the compressor system are in correct condition at the acceptance test (see 6.1.3). BS ISO 5389:200574.2 Preconditions for the guarantee The conditions that apply as a precondition for the guarantee, modification of which wi
43、ll affect the functioning of the compressor, shall be specified in the contract of supply. These conditions can include the following: a) inlet pressure (or discharge pressure in the case of suction-type compressors) and inlet temperature; b) in the case of inward sidestreams, their thermodynamic st
44、ates and the ratio of the side mass flows to the inlet mass flow, in the case of intermediate extraction the ratio of the extracted mass flows to the inlet mass flow and the extraction pressure; c) in the case of intercooled compressors, the recooling temperatures and pressure drops between the rele
45、vant compressor sections; d) physical properties of the gas or vapour and its composition in volume or mass fractions; e) coolant, its mass flow and inlet temperature; f) operating conditions of the driving machine (e.g. enthalpy differences, inlet and outlet state, heat value of the fuel, type, vol
46、tage and frequency of electrical current, speed); g) inlet and outlet state referred to the inlet and outlet flow area of the compressor; h) speed (necessary deviations to meet the guarantee points shall be agreed upon between customer and manufacturer). 4.3 Object of the guarantee The following val
47、ues can be guaranteed under the preconditions specified in 4.2: a) actual inlet volume flow as defined in E.4.2; b) discharge pressure (or inlet pressure in the case of suction-type compressors) and intermediate pressures in the case of inward sidestreams and intermediate extraction; c) the power fo
48、r specified inlet volume flows and discharge pressures (or inlet pressures in the case of vacuum-type compressors) in the form of compressor power at the compressor coupling, or power of the compressor with gearbox at the coupling of the driving machine, or electrical power at the terminals of the d
49、rive motor, or driving machine fuel consumption. Where the compressor and driving machine have common components (e.g., bearings, oil pumps, etc.), an agreement shall be made specifying the manner in which the losses occurring inside the components are to be apportioned (see 5.9). The related power or the efficiency related to a suitable reference process (see E.5) may also be guaranteed instead
