1、BRITISH STANDARD BS ISO 8528-2:2005 Reciprocating internal combustion engine driven alternating current generating sets Part 2: EnginesICS 27.020; 29.160.40 BS ISO 8528-2:2005 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 10 February 2006 B
2、SI 10 February 2006 ISBN 0 580 47713 4 National foreword This British Standard reproduces verbatim ISO 8528-2:2005 and implements it as the UK national standard. It supersedes BS 7698-2:1993 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee MCE/14, RIC
3、engines, to Subcommittee MCE/14/-/8, RIC engines Generating sets, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor r
4、elated international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be fo
5、und in the BSI Catalogue 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 res
6、ponsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the ISO title page, pages ii to iv, pages 1 to 12, an inside back cover and a back cover.
7、 The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments Reference number ISO 8528-2:2005(E)INTERNATIONAL STANDARD ISO 8528-2 Second edition 2005-06-01 Reciprocating internal combustion engine driven
8、alternating current generating sets Part 2: Engines Groupes lectrognes courant alternatif entrans par moteurs alternatifs combustion interne Partie 2: Moteurs BS ISO 8528-2:2005ii iiiContents Page Foreword iv 1 Scope 1 2 Normative references . 1 3 Symbols, terms and definitions. 2 4 Other regulation
9、s and additional requirements. 7 5 General characteristics 8 5.1 Power characteristics. 8 5.2 Main characteristics of the RIC engine. 8 5.3 Low-load operation . 9 6 Speed characteristics. 9 6.1 General. 9 6.2 Types of speed governor used for generating sets 9 6.3 Use of speed governor . 10 7 RIC eng
10、ine load acceptance 10 7.1 General. 10 7.2 Non-turbocharged RIC engines. 10 7.3 Turbocharged RIC engines 10 8 Vibration and noise. 11 8.1 Torsional vibration 11 8.2 Linear vibration . 11 8.3 Noise. 11 9 Heat balance 11 10 Inlet and exhaust system . 11 11 Starting ability . 11 12 Fuel, lubricants and
11、 coolants 12 13 Governing system values. 12 BS ISO 8528-2:2005iv 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 c
12、ommittees. Each member body interested in a subject 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 t
13、he International Electrotechnical Commission (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 Internat
14、ional Standards adopted by the technical committees 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
15、 the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 8528-2 was prepared by Technical Committee ISO/TC 70, Internal combustion engines. This second edition cancels and replaces the first edition (ISO 8528-2:1993), which has been technica
16、lly revised. ISO 8528 consists of the following parts, under the general title Reciprocating internal combustion engine driven alternating current generating sets: Part 1: Application, ratings and performance Part 2: Engines Part 3: Alternating current generators for generating sets Part 4: Controlg
17、ear and switchgear Part 5: Generating sets Part 6: Test methods Part 7: Technical declarations for specification and design Part 8: Requirements and tests for low-power generating sets Part 9: Measurement and evaluation of mechanical vibrations Part 10: Measurement of airborne noise by the envelopin
18、g surface method Part 11: Rotary uninterruptible power systems Performance requirements and test methods 1) Part 12: Emergency power supplies to safety services 1) Part 11 will be published as ISO/IEC 88528-11. BS ISO 8528-2:2005 1Reciprocating internal combustion engine driven alternating current g
19、enerating sets Part 2: Engines 1 Scope This part of ISO 8528 specifies the principal characteristics of a Reciprocating Internal Combustion (RIC) engine when used for alternating current (a.c.) generating set applications. It applies to RIC engines for a.c. generating sets for land and marine use, e
20、xcluding generating sets used on aircraft or to propel land vehicles and locomotives. For some specific applications (e.g. essential hospital supplies, high rise buildings), supplementary requirements may be necessary. The provisions of this part of ISO 8528 should be regarded as the basis for estab
21、lishing any supplementary requirements. The terms which define the speed governing and speed characteristics of RIC engines are listed and explained where they apply specifically to the use of the engine for driving a.c. generators. For other reciprocating-type prime movers (e.g. steam engines), the
22、 provisions of this part of ISO 8528 should be used as a basis for establishing these requirements. 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 late
23、st edition of the referenced document (including any amendments) applies. ISO 3046-1, Reciprocating internal combustion engines Performance Part 1: Declarations of power, fuel and lubricating oil consumptions, and test methods Additional requirements for engines for general use ISO 3046-4, Reciproca
24、ting internal combustion engines Performance Part 4: Speed governing ISO 3046-5, Reciprocating internal combustion engines Performance Part 5: Torsional vibrations ISO 8528-1 2) , Reciprocating internal combustion engine driven alternating current generating sets Part 1: Application, ratings and per
25、formance ISO 8528-5 2) , Reciprocating internal combustion engine driven alternating current generating sets Part 5: Generating sets 2) ISO 8528-1 and ISO 8528-5 are under revision. BS ISO 8528-2:20052 3 Symbols, terms and definitions An explanation of the symbols and abbreviations used in this Inte
26、rnational Standard is shown in Table 1. Table 1 Symbols, terms and definitions Symbol Term Unit Definition n Engine speed min 1n rDeclared speed min 1Engine speed at declared power corresponding to the rated frequency of the generating set. n sfFiring speed min 1Engine speed to which an engine must
27、be accelerated from rest by the use of an external supply of energy separate from the fuel feed system before the engine becomes self-sustaining. n maxMaximum permissible speed min 1Speed of the engine specified by the RIC engine manufacturer which lies a safe amount below the speed limit (see Note
28、1 and Figure 3). n aPartial-load speed min 1Steady-state engine speed of an engine running at a % of the declared power given by: a r 100 P a P = EXAMPLE: at 45 % power, a = 45 (see Figure 2) For a = 45 a ai , r i , rr r i,r i,r r () 0, 45 ( ) P nn nn P nn n = = Corresponding values of declared spee
29、d and partial-load speed are based on an unchanged speed setting. n i,rDeclared no-load speed min 1Steady-state engine speed without load at the same speed setting as for the declared speed n r . n i,minLowest adjustable no-load speed min 1Lowest steady-state engine speed without load obtainable on
30、the governor speed setting device. n i,maxHighest adjustable no-load speed min 1Highest steady-state engine speed without load obtainable on the governor speed setting device. n d,sSetting speed of overspeed limiting device min 1Speed of the engine, the exceeding of which activates the overspeed lim
31、iting device (see Figure 3). n d,oOperating speed of overspeed limiting device min 1Speed of the engine at which, for a given setting speed, the limiting device starts to operate (see Note 2 and Figure 3). BS ISO 8528-2:2005 3Table 1 (continued) Symbol Term Unit Definition n sSpeed setting related r
32、ange % Range of speed setting, expressed as a percentage of the declared speed given by: i,max i,min s r 100 nn n n = n sSpeed setting range min 1Range between the highest and lowest adjustable no-load speeds given by: si , m a xi , m i n nn n = n s,doSpeed setting downward range min 1Range between
33、the declared no-load speed and the lowest adjustable no-load speed given by: s,do i,r i,min nnn = n s,doSpeed setting related downward range % Downward range of speed setting, expressed as a percentage of the declared speed given by: i,r i,min s,do r 100 nn n n = n s,upSpeed setting upward range min
34、 1Range between the highest adjustable no- load speed and the declared no-load speed given by: s,up i,max i,r nnn = n s,upSpeed setting related upward range % Upward range of speed setting, expressed as a percentage of the declared speed given by: i,max i,r s,up r 100 nn n n = nSpeed setting rate of
35、 change %s 1Rate of change of speed setting under remote control, expressed as a percentage of the related range of speed setting per second given by: i,max i,min r n () / 100 nnn t = Adjustment range min 1Speed range over which the overspeed limiting device may be adjusted. n stSpeed droop % Differ
36、ence between the declared no-load speed and the declared speed at declared power, for a fixed speed setting (see Figure 1). It is expressed as a percentage of the declared speed given by: i,r r st r 100 nn n n = n stSpeed/power characteristic deviation % Maximum deviation from a linear speed power c
37、haracteristic curve in the power range between no-load and declared power, expressed as a percentage of the declared speed (see Figure 2). Speed/power characteristic curve Curve of steady-state speeds in the power range between no-load and declared power plotted against RIC engine power (see Figures
38、 1 and 2). BS ISO 8528-2:20054 Table 1 (continued) Symbol Term Unit Definition P Engine power kW P aActual engine power kW P rDeclared engine power kW t rResponse time s Time between activation of the overspeed limiting device and commencement of its operation. p meBrake mean effective pressure kPa
39、V stEngine swept volume l NOTE 1 The speed limit is the maximum calculated speed which the engine may sustain without risk of damage. NOTE 2 For a given engine, the operating speed depends on the total inertia of the generating set and the design of the overspeed protection system. NOTE 3 100 kPa =
40、1 bar. BS ISO 8528-2:2005 5Key P engine power n engine speed 1 speed/power characteristic curve 2 power limit aUpward speed setting. bDownward speed setting range. cRange of speed setting. Figure 1 Speed/power characteristic, range of speed setting BS ISO 8528-2:20056 Key P engine power n engine spe
41、ed 1 linear Speed/Power characteristic curve 2 speed/Power characteristic curve aSpeed/Power characteristic deviation. Figure 2 Speed/power characteristic deviation from the linear curve BS ISO 8528-2:2005 7Key t time n engine speed aSetting speed of overspeed limiting device. bOperating speed of ov
42、erspeed limiting device. cMaximum permissible speed. dSpeed limit. eAdjustment range. Figure 3 Typical speed curve illustrating engine overspeed 4 Other regulations and additional requirements For RIC engines driving a.c. generating sets used on board ships and offshore installations which have to c
43、omply with rules of a classification society, the additional requirements of the classification society shall be observed. The classification society name shall be stated by the customer prior to placing the order. For engines operating in non-classified equipment, any additional requirements are su
44、bject to agreement between the manufacturer and customer. If special requirements arising from regulations or a regulatory authority (e.g. inspecting and/or legislative authorities) have to be met, the authority name shall be stated by the customer prior to placing the order. Any additional requirem
45、ents shall be subject to agreement between the manufacturer and customer. BS ISO 8528-2:20058 5 General characteristics 5.1 Power characteristics 5.1.1 General The power output required at the RIC engine coupling (net brake power as defined in ISO 3046-1) shall take into account: a) the electrical p
46、ower required for the customers plant; b) the electrical power required for the essential independent auxiliaries (see ISO 3046-1); and c) the power loss in the a.c. generator itself. In addition to the steady-state power requirement, sudden power changes due to additional loads (e.g. caused by elec
47、tric motor starting) shall be taken into account since they affect the power output characteristics of the RIC engine and voltage characteristics of the a.c. generator. The generating set manufacturer shall take account of the connected electrical load characteristics and of any load acceptance cond
48、itions expected by the customer. 5.1.2 ISO standard power The power of the RIC engine shall be declared by the engine manufacturer in accordance with the requirements of ISO 3046-1. 5.1.3 Service power The RIC engine power (see ISO 8528-1) required for a particular application to drive the a.c. gene
49、rator under site conditions with any essential independent auxiliaries attached/connected (see ISO 3046-1) and with the generating set developing its rated electrical power, shall be determined in accordance with the requirements of ISO 3046-1. In order to ensure that a continuous supply of electrical power is available to the connected load, it is essential that
