1、BS ISO 19030-3:2016Ships and marine technology Measurement of changes inhull and propeller performancePart 3: Alternative methodsBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO 19030-3:2016 BRITISH STANDARDNational forewordThis British Standard is the UK imple
2、mentation of ISO 19030-3:2016. The UK participation in its preparation was entrusted to TechnicalCommittee SME/32, Ships and marine technology - Steering committee.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to i
3、nclude all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 83591 9 ICS 47.020.99 Compliance with a British Standard cannot confer immunity from legal obligations.Th
4、is British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 December 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS ISO 19030-3:2016 ISO 2016Ships and marine technology Measurement of changes in hull and propeller perf
5、ormance Part 3: Alternative methodsNavires et technologie maritime Mesurage de la variation de performance de la coque et de lhlice Partie 3: Mthodes alternativesINTERNATIONAL STANDARDISO19030-3First edition2016-11-15Reference numberISO 19030-3:2016(E)BS ISO 19030-3:2016ISO 19030-3:2016(E)ii ISO 201
6、6 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2016, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the in
7、ternet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47cop
8、yrightiso.orgwww.iso.orgBS ISO 19030-3:2016ISO 19030-3:2016(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Measurement parameters and alternatives . 24.1 General . 24.2 Proxy for the primary measurement parameters . 24.2.1 General 24.2.2 Proxy for speed th
9、rough water measurement (speed over ground measurement) 24.2.3 Proxy for delivered power (Alternative methods for estimating delivered power other than ISO 19030-2:2016, Annex B and Annex C) 34.3 Secondary measurement parameters and alternatives . 44.3.1 General 44.3.2 Alternative measurement of win
10、d speed 54.3.3 Alternative measurement of static draught (fore and aft) . 54.3.4 Alternative measurement of water depth 55 Measurement procedures and alternatives . 55.1 General . 55.2 Data acquisition . 55.3 Data storage . 65.4 Data preparation . 65.4.1 General 65.4.2 Alternative procedure for expe
11、cted speed calculation . 66 Calculation of performance indicators (PIs) . 96.1 General . 96.2 Definition of performance indicators 96.3 Calculation of performance indicators . 96.3.1 General 96.3.2 Determination of reference conditions 96.3.3 Establishment of reference period and evaluation, and alt
12、ernative durations of reference and evaluation periods 106.3.4 Extraction of subsets of performance values from the complete set with performance indicators that fulfil reference conditions for reference periode(s) and evaluation period 106.3.5 Calculation of the PI .107 Accuracy of the performance
13、indicators (PIs) 117.1 General 117.2 Standard combinations or primary parameters, secondary parameters and measurement procedure details . 117.3 Estimations of the uncertainty in the period average performance value .117.4 Calculating the performance indicator and estimating the accuracy of the perf
14、ormance indicator. 13Bibliography .15 ISO 2016 All rights reserved iiiContents PageBS ISO 19030-3:2016ISO 19030-3:2016(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International St
15、andards is normally carried out through ISO technical committees. 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
16、 take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In
17、 particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements
18、 of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (s
19、ee www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence
20、to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html.The committee responsible for this document is ISO/TC 8, Ships and marine technology, Subcommittee SC 2, Marine environment protection.A list of part of the
21、ISO 19030 series can be found on the ISO website.iv ISO 2016 All rights reservedBS ISO 19030-3:2016ISO 19030-3:2016(E)IntroductionHull and propeller performance refers to the relationship between the condition of a ships underwater hull and propeller and the power required to move the ship through w
22、ater at a given speed. Measurements of changes in ship specific hull and propeller performance over time make it possible to indicate the impact of hull and propeller maintenance, repair and retrofit activities on the overall energy efficiency of the ship in question.The aim of this document is to p
23、rescribe practical methods for measuring changes in ship specific hull and propeller performance and to define a set of relevant performance indicators for hull and propeller maintenance, repair, retrofit activities. The methods are not intended for comparing the performance of ships of different ty
24、pes and sizes (including sister ships) nor to be used in a regulatory framework.This document consists of three parts. ISO 19030-1 outlines general principles for how to measure changes in hull and propeller performance and defines a set of performance indicators for hull and propeller maintenance,
25、repair and retrofit activities. ISO 19030-2 defines the default method for measuring changes in hull and propeller performance and for calculating the performance indicators. It also provides guidance on the expected accuracy of each performance indicator. ISO 19030-3 outlines alternatives to the de
26、fault method. Some will result in lower overall accuracy but increase applicability of the standard. Others may result in same or higher overall accuracy but includes elements which are not yet broadly used in commercial shipping.The general principles outlined, and methods defined, in this document
27、 are based on measurement equipment, information, procedures and methodologies which are generally available and internationally recognized. ISO 2016 All rights reserved vBS ISO 19030-3:2016BS ISO 19030-3:2016Ships and marine technology Measurement of changes in hull and propeller performance Part 3
28、: Alternative methods1 ScopeThis document outlines alternatives to the default method. Some will result in lower overall accuracy but increase applicability of the standard. Others can result in same or higher overall accuracy but includes elements which are not yet broadly used in commercial shippi
29、ng.The general principles outlined and performance indicators defined are applicable to all ship types driven by conventional fixed pitch propellers, where the objective is to compare the hull and propeller performance of the same ship to itself over time.This document presents alternatives to measu
30、rement parameters (primary and then secondary) in Clause 4, then alternatives to measurement procedures (including alternative reference and evaluation periods) in Clause 5, describes the calculation of performance indicators in Clause 6, and finally the estimation of performance indicator accuracy
31、in Clause 7. The structure used duplicates the structure of ISO 19030-2 to facilitate cross-reference between the two documents.NOTE Support for additional configurations (e.g. variable pitch propellers) will, if justified, be included in later revisions of this document.2 Normative referencesThe fo
32、llowing documents are referred to in the text in such a way that some or all of their content constitutes requirements 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
33、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 useISO 19030-1:2016, Ships and marine technology Measurement of changes in hull and propeller performan
34、ce Part 1: General principlesISO 19030-2:2016, Ships and marine technology Measurement of changes in hull and propeller performance Part 2: Default method3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 19030-1 and ISO 19030-2 apply.ISO and IEC maintai
35、n terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obpINTERNATIONAL STANDARD ISO 19030-3:2016(E) ISO 2016 All rights reserved 1BS ISO 19030-3:2016ISO
36、 19030-3:2016(E)4 Measurement parameters and alternatives4.1 GeneralThis clause explores alternatives to the primary and secondary measurement parameters defined for the default method in ISO 19030-2. Whether using ISO 19030-2 or ISO 19030-3 (method alternatives), in all instances, any instruments,
37、automated equipment and sensors used shall be installed, maintained and calibrated in accordance with the specification in ISO 19030-2:2016, 4.3.4.2 Proxy for the primary measurement parameters4.2.1 GeneralHull and propeller performance as defined in ISO 19030-1:2016, 4.1 gives measurements of ship
38、speed through water and of power delivered to the propeller as the two primary measurement parameters. ISO 19030-2:2016, Clause 4, defines minimum sensor requirements for these two parameters.If the primary measurement parameters cannot be measured or the minimum sensor requirements cannot be met, p
39、roxies can be used to approximate the parameters. As compared with the default method, this will generally result in reduced accuracy. Table 1 summarises relevant proxies. 4.2 and 4.3 describe the proxies and estimate impact on accuracy. Speed data should be measured in m/s or converted from knots t
40、o m/s using the conversion factor 1 knot = 0,514 4 m/s.Table 1 Sensor proxies for the primary measurement parametersParameter Proxy Measurement approach UnitSpeed through waterSpeed Over Ground (SOG) Calculate SOG from GPS/navigation system(m/s)Delivered power Alternative methods for estimat-ing of
41、delivered power (other than ISO 19030-2:2016, Annex B and Annex C)Alternatives to ISO 19030-2:2016, Annex B and Annex C approach(kW)4.2.2 Proxy for speed through water measurement (speed over ground measurement)4.2.2.1 GeneralIt is possible to approximate a ships speed through water using speed over
42、 ground measurements. Speed over ground measurements are typically directly available as, or can be calculated based on information from, the GPS or navigation system. Using speed over ground as a proxy introduces an uncertainty due to the influence of currents. This uncertainty will affect all ship
43、s, but to varying extents depending on the area of operation and the ships frequency of encountering current speeds with a similar magnitude to the ships speed through the water (e.g. current speed greater than 10 % of the ships speed through the water). The impact of the uncertainty associated with
44、 the use of this proxy is estimated and discussed in ISO 19030-1:2016, Annex A.Vvvvdmee=100 (1)whereVdis the percentage speed loss;vmis the measured speed through water;veis the expected speed through water.2 ISO 2016 All rights reservedBS ISO 19030-3:2016ISO 19030-3:2016(E)When used as a proxy, spe
45、ed over ground is a direct substitution for the measured speed (Vm) through water (in m/s) as defined in ISO 19030-2:2016, 5.4.7.2 and Formula (3) and in Formula (1).4.2.2.2 Procedure for calculating the average speed over groundThe vessels speed over ground is a key quantity for measuring the chang
46、es in hull and propeller performance. This data should be as accurate and precise as is practical.When automatic recording systems for the vessels speed over ground are not available, alternative methods to measure, calculate, and record the speed over ground are required.When manual readings are re
47、quired, the interval between measurements should be maintained as much as is practical.When a calculation of distance travelled per period of time is used, it is important to consider how the distance travelled is measured and the method used shall be clearly documented. To ensure minimum uncertaint
48、y of the performance value, speed and draught shall be kept approximately constant over the period of time used to determine speed.A clear procedure shall be documented to ensure that measurements and calculations are consistently performed.4.2.3 Proxy for delivered power (Alternative methods for es
49、timating delivered power other than ISO 19030-2:2016, Annex B and Annex C)4.2.3.1 GeneralAs one of the default methods for estimating delivered power, ISO 19030-2:2016, Annex B describes an approach for estimating delivered power from fuel consumption data, using mass or volumetric flow meters. This alternative considers situations where mass or volumetric flow meter data is not available.This alternative method assumes a conventional propulsion system of a two-stroke main engine directly coupled to a propeller (no gea
