DIN EN 15195-2015 Liquid petroleum products - Determination of ignition delay and derived cetane number (DCN) of middle distillate fuels by combustion in a constant volume chamber .pdf

1、February 2015Translation by DIN-Sprachendienst.English price group 14No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).IC

2、S 75.160.20!%Y“2296154www.din.deDDIN EN 15195Liquid petroleum products Determination of ignition delay and derived cetane number (DCN) ofmiddle distillate fuels by combustion in a constant volume chamber;English version EN 15195:2014,English translation of DIN EN 15195:2015-02Flssige Minerallerzeugn

3、isse Bestimmung des Zndverzugs und der abgeleiteten Cetanzahl (ACZ) von Kraftstoffen ausMitteldestillaten in einer Verbrennungskammer mit konstantem Volumen;Englische Fassung EN 15195:2014,Englische bersetzung von DIN EN 15195:2015-02Produits ptroliers liquides Dtermination de dlai dinflammation et

4、de lindice de ctane driv (ICD) des distillatsmoyens par combustion dans une enceinte volume constant;Version anglaise EN 15195:2014,Traduction anglaise de DIN EN 15195:2015-02SupersedesDIN EN 15195:2007-08www.beuth.deIn case of doubt, the German-language original shall be considered authoritative.Do

5、cument comprises 31 pages02.15 DIN EN 15195:2015-02 2 A comma is used as the decimal marker. National foreword This document (EN 15195:2014) has been prepared by Technical Committee CEN/TC 19 “Gaseous and liquid fuels, lubricants and related products of petroleum, synthetic and biological origin” (S

6、ecretariat: NEN, Netherlands). The responsible German body involved in its preparation was the DIN-Normenausschuss Materialprfung (DIN Standards Committee Materials Testing), Working Committee NA 062-06-43 AA Motorische Prfung von flssigen Kraftstoffen of the Fachausschuss Minerall- und Brennstoffno

7、rmung (FAM). The DIN Standards corresponding to the International Standards referred to in this document are as follows, whereby EN ISO Standards are only listed below if these have not been published as DIN EN ISO Standards with the same number: EN ISO 3696 DIN ISO 3696 ISO 4010:1977*)DIN ISO 4010

8、In addition to the legal units of measurement, this standard also uses the unit “psi”. It should, however, be noted that the Gesetz ber Einheiten im Messwesen (German Law on units in metrology) prohibits the use of this unit for official and commercial purposes in Germany. Conversion: Non-SI unit SI

9、 unit Conversion psi Pa 1 psi = 6 894,757 Pa Amendments This standard differs from DIN EN 15195:2007-08 as follows: a) based on recent data from EI and ASTM correlation schemes, the precision of the method has been improved (by around 25 %) and a common global precision statement for EN 15195 has be

10、en incorporated (see also the Introduction); b) the ignition delay range has been expanded from 2,8 ms up to 6,3 ms (71 DCN to 34 DCN), where it used to be 3,3 ms to 6,4 ms (61 DCN to 34 DCN); c) the scope has been expanded to include diesel blends with 7 % (V/V) up to 30 % (V/V) FAME; d) the test p

11、rocedure has been updated following experience in the market; e) the standard operating and test conditions have been defined more precisely; f) the calibration information has been improved; g) an alternative system cleaning procedure has been introduced in Annex B. Previous editions DIN EN 15195:

12、2007-08 *) ISO 4010:1998 has not been published as a DIN ISO Standard. DIN EN 15195:2015-02 3 National Annex NA (informative) Bibliography DIN ISO 3696, Water for analytical laboratory use Specification and test methods DIN ISO 4010, Calibrating nozzle Delay pintle type DIN EN 15195:2015-02 4 This p

13、age is intentionally blank EN 15195 November 2014 ICS 75.160.20 Supersedes EN 15195:2007English Version Liquid petroleum products - Determination of ignition delay and derived cetane number (DCN) of middle distillate fuels by combustion in a constant volume chamber Produits ptroliers liquides - Dter

14、mination de dlai dinflammation et de lindice de ctane driv (ICD) des distillats moyens par combustion dans une enceinte volume constant Flssige Minerallerzeugnisse - Bestimmung des Zndverzugs und der abgeleiteten Cetanzahl (ACZ) von Kraftstoffen aus Mitteldestillaten in einer Verbrennungskammer mit

15、konstantem Volumen This European Standard was approved by CEN on 20 September 2014. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists an

16、d 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, German). A version in any other language made by translation under the

17、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, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugosla

18、v Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000

19、Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15195:2014 EEUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 15195:201

20、4 (E) 2 Contents Page Foreword 4 Introduction .5 1 Scope 6 2 Normative references 6 3 Terms and definitions .7 4 Principle 8 5 Reagents and materials 8 6 Apparatus .9 6.1.1 General 9 7 Sampling 11 8 Apparatus assembly and installation . 11 9 Preparation of apparatus . 11 9.1 System start-up and warm

21、-up . 11 9.2 Standard operating and test conditions . 12 10 Calibration, verification and quality control 13 10.1 General . 13 10.2 Calibration . 13 10.3 Apparatus verification 14 10.4 Quality control (QC) 14 11 Test procedure 14 12 Calculation . 15 13 Expression of results . 15 14 Precision 15 14.1

22、 General . 15 14.2 Repeatability 15 14.3 Reproducibility 15 15 Test report . 16 Annex A (normative) Test apparatus description . 17 A.1 General . 17 A.2 Apparatus description and assembly . 17 A.3 Utilities . 19 A.4 Control and data acquisition . 19 A.5 Auxiliary apparatus. 19 Annex B (normative) Op

23、erational details in support to the standard test procedure 20 B.1 Fuel injection system flushing 20 B.2 Fuel injection system filling and purging . 20 B.3 Test sequence . 21 B.3.1 General . 21 DIN EN 15195:2015-02EN 15195:2014 (E) 3 B.3.2 Test sequence 21 B.3.3 Data record . 22 B.4 Fuel injection s

24、ystem cleaning 23 B.5 Alternative fuel injection system cleaning 23 Annex C (informative) Apparatus maintenance . 25 C.1 General . 25 C.2 Daily maintenance . 25 C.3 Weekly maintenance . 25 C.4 Yearly maintenance . 25 Annex D (informative) Equation outside scope of method 26 Bibliography 27 DIN EN 15

25、195:2015-02EN 15195:2014 (E) 4 Foreword This document (EN 15195:2014) 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 European Standard shall be

26、 given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by May 2015 and conflicting national standards shall be withdrawn at the latest by May 2015. Attention is drawn to the possibility that some of the elements of this document may be t

27、he subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 15195:2007. Based on new data sets used and experience in the field, the major updates towards the former version are: based on recent data from EI

28、 and ASTM correlation schemes precision of the method has been improved (by around 25 %) and a common global precision statement for EN 15195 has been incorporated (see also the Introduction) 9; the ignition delay range has been expanded to 2,8 ms to 6,3 ms (71 DCN to 34 DCN), where it used to be 3,

29、3 ms to 6,4 ms (61 DCN to 34 DCN); the scope has been expanded to from diesel blends with 7 % (V/V) up to 30 % (V/V) of FAME; the test procedure has been updated following experience in the market; the standard operating and test conditions have been more precisely defined; the calibration informati

30、on has been improved; an alternative system cleaning procedure has been introduced in Annex B. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus

31、, 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United K

32、ingdom. DIN EN 15195:2015-02EN 15195:2014 (E) 5 Introduction This document is derived from joint standardization work in the Energy Institute and ASTM International. It has originally been based on IP 498/06 1 published by the Energy Institute and harmonized with equivalent ASTM 2 Standards. The des

33、cribed method is an alternative quantitative determination of the cetane number of middle distillate fuels intended for use in compression ignition engines. Correlation studies between this method and EN ISO 5165 have been done and the results of this are incorporated in this European Standard. The

34、basis of this method is the derived cetane number correlation equation as given in Clause 13. The on-going validation of the equation is monitored and evaluated through the existing monthly American and European fuel exchange programs. The validation data will be reviewed by CEN/TC 19 with a frequen

35、cy of at least every two years. As a result of the review, CEN/TC 19 may make the decision to, if necessary, modify the existing equation/correlation or develop a new one. As part of this review, the sample types will be examined, and if certain types are underrepresented, further steps may be taken

36、 to evaluate how they perform. For the moment the basics of one type of apparatus are described1. Once more correlation data on different types of derived cetane number testing equipment is available, CEN/TC 19 will consider revising this European Standard. 1The injection pump in the currently descr

37、ibed apparatus is covered by a patent. DIN EN 15195:2015-02EN 15195:2014 (E) 6 1 Scope This European Standard specifies a test method for the quantitative determination of ignition delay of middle distillate fuels intended for use in compression ignition engines. The method utilizes a constant volum

38、e combustion chamber designed for operation by compression ignition, and employing direct injection of fuel into compressed air that is controlled to a specified pressure and temperature. An equation is given to calculate the derived cetane number (DCN) from the ignition delay measurement. This Euro

39、pean Standard is applicable to diesel fuels, including those containing fatty acid methyl esters (FAME) up to 30 % (V/V). The method is also applicable to middle distillate fuels of non-petroleum origin, oil-sands based fuels, blends of fuel containing biodiesel material, diesel fuel oils containing

40、 cetane number improver additives and low-sulfur diesel fuel oils. However, users applying this standard especially to unconventional distillate fuels are warned that the relationship between derived cetane number and combustion behaviour in real engines is not yet fully understood. The test method

41、is also applicable to the quantitative determination of the ignition characteristics of FAME, especially the ignition delay. However the correlation data available were inconclusive about the precision of the equation. So the determination of derived cetane number for FAME fuel, also known as B100,

42、has not been included in the precision determination as in Clause 122). This European Standard covers the ignition delay range from 2,8 ms to 6,3 ms (71 DCN to 34 DCN). The combustion analyser can measure shorter or longer ignition delays, but precision is not known. For these shorter or longer igni

43、tion delays the correlation equation for DCN is given in Annex D. NOTE 1 There is no information about how DCNs outside the 34 to 71 range compares to EN ISO 5165. NOTE 2 For the purpose of this European Standard, the expression “% (V/V)” is used to represent the volume fraction and “% (m/m)” the ma

44、ss fraction. WARNING The use of this standard may involve hazardous materials, operations and equipment. This standard does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health prac

45、tices and determine the applicability of regulatory limitations prior to use. 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

46、references, the latest edition of the referenced document (including 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 method

47、s (ISO 3696) EN ISO 5165:1998, Petroleum products Determination of the ignition quality of diesel fuels Cetane engine method (ISO 5165:1998) ISO 1998-2:1998, Petroleum industry Terminology Part 2: Properties and tests ISO 4010, Diesel engines Calibrating nozzle, delay pintle type 2) A further Round

48、Robin study for B100 samples is being considered by CEN. DIN EN 15195:2015-02EN 15195:2014 (E) 7 IP 537, Determination of the purity of Derived Cetane Number reference materials Gas chromatography method 3 Terms and definitions For the purposes of this document, the terms and definitions given in IS

49、O 1998-2:1998 and the following apply. 3.1 cetane number CN measure of the ignition performance of a diesel fuel in a standardized engine test on a scale defined by reference fuels Note 1 to entry: It is expressed as the percentage by volume of hexadecane (cetane) in a reference blend having the same ignition delay as the fuel for analysis. The higher the cetane number, the shorter the ignition delay. Note 2 to entry: IS