1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Liquid petroleum products Determination of indicated cetane number (ICN) of middle distillate fuels Primary reference fuels calibration method using a constant volume combustion chamberBS EN 17155:2018EUROPEAN STANDARD
2、NORME EUROPENNE EUROPISCHE NORM EN 17155 July 2018 ICS 75.160.20 English Version Liquid petroleum products - Determination of indicated cetane number (ICN) of middle distillate fuels - Primary reference fuels calibration method using a constant volume combustion chamber Produits ptroliers liquides -
3、 Dtermination de lindice de ctane indiqu (ICI) des distillats moyens - Mthode dtalonnage avec carburants de rfrence primaires et chambre de combustion volume constant Flssige Minerallerzeugnisse - Bestimmung der indizierten Cetanzahl (ICZ) von Kraftstoffen aus Mitteldestillaten - Verfahren mittels K
4、alibrierung mit primren Bezugskraftstoffen unter Verwendung einer Verbrennungskammer mit konstantem Volumen This European Standard was approved by CEN on 20 April 2018. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European S
5、tandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (Eng
6、lish, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium,
7、 Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Sw
8、itzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN
9、national Members. Ref. No. EN 17155:2018 ENational forewordThis British Standard is the UK implementation of EN 17155:2018.The UK participation in its preparation was entrusted to Technical Committee PTI/2, Liquid Fuels.A list of organizations represented on this committee can be obtained on request
10、 to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 98481 5ICS 75.160.20Compliance with a British Sta
11、ndard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 July 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 17155:2018EUROPEAN STANDARD NORME EUROPENNE
12、 EUROPISCHE NORM EN 17155 July 2018 ICS 75.160.20 English Version Liquid petroleum products - Determination of indicated cetane number (ICN) of middle distillate fuels - Primary reference fuels calibration method using a constant volume combustion chamber Produits ptroliers liquides - Dtermination d
13、e lindice de ctane indiqu (ICI) des distillats moyens - Mthode dtalonnage avec carburants de rfrence primaires et chambre de combustion volume constant Flssige Minerallerzeugnisse - Bestimmung der indizierten Cetanzahl (ICZ) von Kraftstoffen aus Mitteldestillaten - Verfahren mittels Kalibrierung mit
14、 primren Bezugskraftstoffen unter Verwendung einer Verbrennungskammer mit konstantem Volumen This European Standard was approved by CEN on 20 April 2018. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the sta
15、tus of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, G
16、erman). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croa
17、tia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turk
18、ey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Member
19、s. Ref. No. EN 17155:2018 EBS EN 17155:2018EN 17155:2018 (E) 2 Contents Page European foreword . 4 Introduction 5 1 Scope 6 2 Normative references 6 3 Terms and definitions . 6 4 Principle . 8 5 Reagents and materials . 8 6 Apparatus 10 7 Sampling 11 8 Sample handling and preparation . 11 9 Apparatu
20、s installation 11 10 Preparation of apparatus 11 10.1 System start-up and warm-up . 11 10.2 Standard operating and test conditions 12 11 Calibration, verification and quality control 12 11.1 General . 12 11.2 PRF Calibration . 12 11.3 Apparatus verification . 13 11.4 Quality control (QC) 13 12 Test
21、procedure 14 13 Calculation 14 14 Expression of results . 14 15 Precision 15 15.1 General . 15 15.2 Repeatability 16 15.3 Reproducibility . 16 16 Test report 16 Annex A (normative) Combustion analyser with auto-sampler description . 17 A.1 General . 17 A.2 Apparatus description 17 A.2.1 Combustion c
22、hamber 17 A.2.2 Fuel injection system 17 A.2.3 Waste container 18 A.2.4 Coolant system 19 A.2.5 Combustion Charge Air and exhaust system 19 A.2.6 Automatic carousel 20 BS EN 17155:2018EN 17155:2018 (E) 3 A.3 Control and data acquisition 20 Annex B (normative) Operation details in support of the stan
23、dard test procedure . 21 B.1 General . 21 B.2 Test sequence after the combustion chamber is at a stable temperature . 21 B.3 Unit shutdown 22 Annex C (informative) Preparation of calibration and verification fluids 23 C.1 General . 23 C.2 Checks . 23 C.3 Blending . 23 C.4 Recording. 24 Bibliography
24、. 25 BS EN 17155:2018EN 17155:2018 (E) 4 European foreword This document (EN 17155:2018) has been prepared by Technical Committee CEN/TC 19 “Gaseous and liquid fuels, lubricants and related products of petroleum, synthetic and biological origin”, the secretariat of which is held by NEN. This Europea
25、n Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by January 2019, and conflicting national standards shall be withdrawn at the latest by January 2019. Attention is drawn to the possibility that some of the elemen
26、ts of this document may be the subject of patent rights. CEN not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austri
27、a, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain,
28、 Sweden, Switzerland, Turkey and the United Kingdom. BS EN 17155:2018EN 17155:2018 (E) 5 Introduction This document is derived from standardization work within the Energy Institute (IP 617) and ASTM International. A similar technically equivalent test method is under development by ASTM Internationa
29、l. The described method is an alternative quantitative determination of the cetane number of middle distillate fuels intended for use in compression ignition engines. A correlation study between this method and EN ISO 5165 1 is fully reported in Research Report IP 617 ILS 2. This method is based on
30、calibration by blends of primary reference fuels on a scale of 0 (1-Methylnaphthalene) and 100 (n-hexadecane) with the units of measurement being designated Indicated Cetane Number (ICN). The on-going performance of this test method will be monitored and evaluated through the existing European and A
31、merican fuel exchange programmes. The ICN value determined by this test method can provide a measure of the ignition characteristics of middle distillate fuels used in compression ignition engines. This test is for use by engine manufacturers, petroleum refiners and marketers, and in commerce as a s
32、pecification aid to relate or match fuels and engines. This test is also applicable to non-conventional middle distillate fuels. For the purpose of this standard, the abbreviation ICN (Indicated Cetane Number) is being used to discriminate it from other techniques. For the moment the basics of one t
33、ype of apparatus are described. Once more correlation data on different types of indicated cetane number testing equipment is available, CEN/TC 19 will consider revising this European Standard. BS EN 17155:2018EN 17155:2018 (E) 6 1 Scope This European Standard specifies a test method for the quantit
34、ative determination of the indicated cetane number (ICN) of middle distillate fuels and blending components, intended for use in compression ignition engines. The test method utilizes a constant volume combustion chamber with direct fuel injection into heated compressed air. Calibration of the appar
35、atus using blends of primary reference materials over a scale of 0 to 100 enables fuel ignition delays, measured from the resulting pressure increase, to be used to determine and report ICN results. This European Standard is applicable to middle distillate fuels of both petroleum and non-petroleum o
36、rigin, hydrocarbon oils, oil-sands based fuels, blending components, fatty acid methyl esters (FAME), blends of fuel containing biodiesel material, diesel fuel oils containing cetane number improver additives, low-sulfur diesel fuel oils, aviation turbine fuels and polyoxymethylene dimethyl ether (O
37、ME). However, users applying this standard especially to unconventional distillate fuels are warned that the relationship between cetane number and combustion behaviour in real engines is not yet fully understood. This European Standard covers the calibrated range of 35 ICN to 85 ICN. NOTE 1 The ana
38、lyser can measure ICN outside the calibrated range, but precision has not been determined. NOTE 2 For the purpose of this standard, the expression “% (V/V)” is used to represent the volume fraction. WARNING The use of this standard can involve hazardous materials, operations and equipment. This Stan
39、dard does not purport to address all of the safety problems associated with its use. It is the responsibility of users of this standard to take appropriate measures to ensure the safety and health of personnel prior to application of the standard, and fulfil statutory and regulatory requirements for
40、 this purpose. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (incl
41、uding any amendments) applies. EN ISO 3170, Petroleum liquids Manual sampling (ISO 3170) EN ISO 3171, Petroleum liquids Automatic pipeline sampling (ISO 3171) EN ISO 3696, Water for analytical laboratory use Specification and test methods (ISO 3696) ISO 1998-2, Petroleum industry Terminology Part 2:
42、 Properties and tests ASTM D3703, Hydroperoxide Number of Aviation Turbine Fuels, Gasoline and Diesel Fuels 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 1998-2 and the following apply. 3.1 cetane number CN measure of the ignition performance of a
43、diesel fuel oil obtained by comparing it to reference fuels in a standardized engine test BS EN 17155:2018EN 17155:2018 (E) 7 Note 1 to entry: Ignition performance is understood to mean the ignition delay of the fuel as determined when the standard test engine is operated under controlled conditions
44、 of fuel flow rate, injection timing and compression ratio. 3.2 ignition delay ID period of time, in milliseconds (ms), between the start of fuel injection and the start of combustion Note 1 to entry: In the context of this test method it is the mean of ID0 and ID150. 3.2.1 Ignition delay 0 kPa pres
45、sure recovery ID0period of time, in milliseconds (ms), between the start of fuel injection and the point where the relative pressure recovers to 0 kPa Note 1 to entry: See Figure B.1 for visual explanation. 3.2.2 ignition delay 150 kPa threshold ID150period of time, in milliseconds (ms), between the
46、 start of fuel injection and the point where the relative pressure reaches 150 kPa Note 1 to entry: See Figure B.1 for visual explanation. Note 2 to entry: In the context of this test method, the start of fuel injection is interpreted as the start of the electronic signal that opens the piezoelectri
47、c injector; timings for the ID0 and ID150 ignition delays commence at this start point. 3.3 indicated cetane number ICN measure of the ignition performance of a middle distillate fuel obtained by comparing it to primary reference fuels that have been blended to a scale; where 0 and 100 are represent
48、ed by 1-methylnaphthalylene and n-hexadecane respectively to create a calibration curve Note 1 to entry: It is in principle a number indicated from a calibration curve that has been generated on the analyser under test using primary reference fuel blend calibration points. The calibration curve, ICN
49、 = function of ignition delay (ID); details and examples of the equation are given in the research report. 3.4 quality control sample QC sample stable and homogenous material(s) similar in nature to the materials under test, stored to ensure integrity, and available in sufficient quantity for repeated long term testing 3.5 primary reference fuels PRF n-hexadecane (n-cetane) and 1-methylnaphthalene(1-MN) Note 1 to entry: Volumetrically proportioned blends, at 20 C, of these materials define the indicated cetane number by
