ASTM D7170-2012 3750 Standard Test Method for Determination of Derived Cetane Number (DCN) of Diesel Fuel OilsFixed Range Injection Period Constant Volume Combustion Chamber Method.pdf
《ASTM D7170-2012 3750 Standard Test Method for Determination of Derived Cetane Number (DCN) of Diesel Fuel OilsFixed Range Injection Period Constant Volume Combustion Chamber Method.pdf》由会员分享,可在线阅读,更多相关《ASTM D7170-2012 3750 Standard Test Method for Determination of Derived Cetane Number (DCN) of Diesel Fuel OilsFixed Range Injection Period Constant Volume Combustion Chamber Method.pdf(13页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D7170 12Standard Test Method forDetermination of Derived Cetane Number (DCN) of DieselFuel OilsFixed Range Injection Period, Constant VolumeCombustion Chamber Method1This standard is issued under the fixed designation D7170; the number immediately following the designation indicates the
2、 year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This test method covers the quantitative determina
3、tionof the ignition characteristics of conventional diesel fuel oils,diesel fuel oils containing cetane number improver additives,and is applicable to products typical of Specification D975,Grades No. 1-D and 2-D regular and low-sulfur diesel fuel oils,European standard EN 590, and Canadian standard
4、s CAN/CGSB-3.517-2000 and CAN/CGSB 3.6-2000. The test methodmay also be applied to the quantitative determination of theignition characteristics of blends of fuel oils containing bio-diesel material, and diesel fuel oil blending components.1.2 This test method measures the ignition delay and utilize
5、sa constant volume combustion chamber with direct fuel injec-tion into heated, compressed air. An equation converts anignition delay determination to a derived cetane number(DCN).1.3 This test method covers the ignition delay range from aminimum value of 35.0 DCN (ignition delay of 4.89 ms) to amaxi
6、mum value of 59.6 DCN (ignition delay of 2.87 ms). Theaverage DCN result for each sample in the ILS ranged from37.29 (average ignition delay of 4.5894 ms) to 56.517 (averageignition delay of 3.0281 ms).1.4 The values stated in SI units are to be regarded asstandard. No other units of measurement are
7、 included in thisstandard.1.5 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations pr
8、ior to use.2. Referenced Documents2.1 ASTM Standards:2D613 Test Method for Cetane Number of Diesel Fuel OilD975 Specification for Diesel Fuel OilsD1193 Specification for Reagent WaterD4057 Practice for Manual Sampling of Petroleum andPetroleum ProductsD4175 Terminology Relating to Petroleum, Petrole
9、umProducts, and LubricantsD4177 Practice for Automatic Sampling of Petroleum andPetroleum ProductsD5854 Practice for Mixing and Handling of Liquid Samplesof Petroleum and Petroleum ProductsD6299 Practice for Applying Statistical Quality Assuranceand Control Charting Techniques to Evaluate Analytical
10、Measurement System PerformanceD6300 Practice for Determination of Precision and BiasData for Use in Test Methods for Petroleum Products andLubricantsD6708 Practice for StatisticalAssessment and Improvementof Expected Agreement Between Two Test Methods thatPurport to Measure the Same Property of a Ma
11、terialE456 Terminology Relating to Quality and StatisticsE832 Specification for Laboratory Filter Papers2.2 EN Standard:3EN 590 Automotive FuelsDieselRequirements andTest Methods2.3 Energy Institute Standard:41This test method is under the jurisdiction of ASTM Committee D02 onPetroleum Products and
12、Lubricants and is the direct responsibility of SubcommitteeD02.01 on Combustion Characteristics.Current edition approved June 15, 2012. Published July 2012. Originallyapproved in 2006. Last previous edition approved in 2011 as D717011. DOI:10.1520/D7170-12.2For referenced ASTM standards, visit the A
13、STM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from European Committee for standardization. Central Secretariat:rue de Stassart, 36, B-1050
14、Brussels, Belgium.4Available from Energy Institute, 61 New Cavendish St., London, WIG 7AR,U.K.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.IP 41 Ignition Quality of
15、 Diesel FuelsCetane Engine TestMethod2.4 Canadian Standards:5CAN/CGSB-3.517-2000 Regular Sulphur Diesel FuelSpecificationCAN/CGSB 3.6-2000 Automotive Low-Sulphur DieselFuelSpecification2.5 DIN Standard:6DIN 73372 Einspritzdsen Grsse T und U3. Terminology3.1 Definitions:3.1.1 accepted reference value
16、 (ARV), na value thatserves as an agreed-upon reference for comparison and that isderived as (1) a theoretical or established value, based onscientific principles, (2) an assigned value, based on experi-mental work of some national or international organization,such as the U.S. National Institute of
17、 Standards and Technol-ogy (NIST), or (3) a consensus value, based on collaborativeexperimental work under the auspices of a scientific orengineering group. E4563.1.1.1 DiscussionIn the context of this method, acceptedreference value is understood to apply to the ignition delay ofspecific reference
18、materials determined under reproducibilityconditions by collaborative experimental work.3.1.2 cetane number (CN), na measure of the ignitionperformance of a diesel fuel oil obtained by comparing it toreference fuels in a standardized engine test. D41753.1.2.1 DiscussionIn the context of this method,
19、 cetanenumber is that defined by ASTM D613/IP 41.3.1.3 check standard, nin QC testing, a material havingan accepted reference value used to determine the accuracy ofa measurement system. D62993.1.3.1 DiscussionIn the context of this test method,check standard refers to heptane.3.1.4 quality control
20、(QC) sample, nfor use in qualityassurance programs to determine and monitor the precision andstability of a measurement system, a stable and homogeneousmaterial having physical or chemical properties, or both,similar to those of typical samples tested by the analyticalmeasurement system. The materia
21、l is properly stored to ensuresample integrity, and is available in sufficient quantity forrepeated, long term testing. D62993.2 Definitions of Terms Specific to This Standard:3.2.1 calibration reference material, na pure chemicalhaving an assigned ignition delay accepted reference value.3.2.2 charg
22、e air, ncompressed air at a specified pressureintroduced into the combustion chamber at the beginning ofeach test cycle.3.2.3 charge air temperature, ntemperature, in C, of theair inside the combustion chamber.3.2.4 combustion analyzer, nan integrated compressionignition apparatus to measure the ign
23、ition characteristics ofdiesel fuel oil.3.2.5 derived cetane number (DCN), na number calcu-lated using a conversion equation to determine a cetanenumber.3.2.5.1 DiscussionThe conversion equation relates a mea-sured ignition delay or ignition delay and combustion delayfrom a combustion analyzer to a
24、cetane number.3.2.6 ignition delay (ID), nthat period of time, in milli-seconds (ms), between the start of fuel injection and the start ofcombustion as determined using the specific combustion ana-lyzer applicable for this test method.3.2.6.1 DiscussionIn the context of this test method, startof fue
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
本资源只提供5页预览,全部文档请下载后查看!喜欢就下载吧,查找使用更方便
5000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- ASTMD717020123750STANDARDTESTMETHODFORDETERMINATIONOFDERIVEDCETANENUMBERDCNOFDIESELFUELOILSFIXEDRANGEINJECTIONPERIODCONSTANTVOLUMECOMBUSTIONCHAMBERMETHODPDF

链接地址:http://www.mydoc123.com/p-524700.html