提高运输柴油机废气中颗粒物重量控制系统的精度

Q4 Engineering
A. Polyvianchuk, V.L. Khreshchenetskyi, O.P. Antonuk, M.V. Mitko, A. Dmitrieva
{"title":"提高运输柴油机废气中颗粒物重量控制系统的精度","authors":"A. Polyvianchuk, V.L. Khreshchenetskyi, O.P. Antonuk, M.V. Mitko, A. Dmitrieva","doi":"10.20998/0419-8719.2022.2.08","DOIUrl":null,"url":null,"abstract":"The requirements of regulatory documents - UNECE Regulations R-49, R-96, international standard ISO 8178, etc. were analyzed regarding the technical characteristics and conditions of use of reference full-flow and alternative partial-flow systems (tunnels) for diluting the exhaust gases of transport diesel engines with air and carrying out gravimetric control of the content of solid particles in them. The world and domestic experience of operating dilution tunnels of various types - full-flow with 1st and 2nd dilution lines and partial-flow mini- and micro-tunnels and partial-flow mini- and micro-tunnels were studied, which made it possible to establish empirical dependencies for evaluating the degree of influence of the temperature regimes of gas sampling on the accuracy of measurements of mass emissions particulate matter in different modes of diesel operation. Mathematical models have been developed to determine the sample temperatures of diluted exhaust gases in tunnels of various types and to estimate the resulting measurement error of the normalized average operational emission of diesel particulate matter - the PM indicator. Based on the results of environmental tests of transport diesel engines 1Ch12/14 and 4ChN12/14 according to the 13-step ESC test cycle and developed mathematical models, calculation studies were carried out to assess the effect on the accuracy of a mini-tunnel with a diameter of 10 cm and a micro-tunnel with a diameter of 3 cm of the sampling temperature regimes, which were compared with a reference tunnel with a diameter of 46 cm. The research results proved the expediency of adjusting the temperature of the sample in the micro-tunnel to increase its accuracy by eliminating the significant methodical errors of measuring the PM indicator, which amount to -1.6 ... -1.7%. It was established that in the mini-tunnel the corresponding errors are not significant and amount to -0.3 ... -0.4%, which indicates that there is no need to adjust the temperature of the sample in this system.","PeriodicalId":35991,"journal":{"name":"Neiranji Xuebao/Transactions of CSICE (Chinese Society for Internal Combustion Engines)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2022-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"IMPROVING THE ACCURACY OF SYSTEMS FOR GRAVIMETRIC CONTROL OF PARTICULATE MATTER IN EXHAUST GASES OF TRANSPORT DIESEL ENGINES\",\"authors\":\"A. Polyvianchuk, V.L. Khreshchenetskyi, O.P. Antonuk, M.V. Mitko, A. Dmitrieva\",\"doi\":\"10.20998/0419-8719.2022.2.08\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The requirements of regulatory documents - UNECE Regulations R-49, R-96, international standard ISO 8178, etc. were analyzed regarding the technical characteristics and conditions of use of reference full-flow and alternative partial-flow systems (tunnels) for diluting the exhaust gases of transport diesel engines with air and carrying out gravimetric control of the content of solid particles in them. The world and domestic experience of operating dilution tunnels of various types - full-flow with 1st and 2nd dilution lines and partial-flow mini- and micro-tunnels and partial-flow mini- and micro-tunnels were studied, which made it possible to establish empirical dependencies for evaluating the degree of influence of the temperature regimes of gas sampling on the accuracy of measurements of mass emissions particulate matter in different modes of diesel operation. Mathematical models have been developed to determine the sample temperatures of diluted exhaust gases in tunnels of various types and to estimate the resulting measurement error of the normalized average operational emission of diesel particulate matter - the PM indicator. Based on the results of environmental tests of transport diesel engines 1Ch12/14 and 4ChN12/14 according to the 13-step ESC test cycle and developed mathematical models, calculation studies were carried out to assess the effect on the accuracy of a mini-tunnel with a diameter of 10 cm and a micro-tunnel with a diameter of 3 cm of the sampling temperature regimes, which were compared with a reference tunnel with a diameter of 46 cm. The research results proved the expediency of adjusting the temperature of the sample in the micro-tunnel to increase its accuracy by eliminating the significant methodical errors of measuring the PM indicator, which amount to -1.6 ... -1.7%. It was established that in the mini-tunnel the corresponding errors are not significant and amount to -0.3 ... -0.4%, which indicates that there is no need to adjust the temperature of the sample in this system.\",\"PeriodicalId\":35991,\"journal\":{\"name\":\"Neiranji Xuebao/Transactions of CSICE (Chinese Society for Internal Combustion Engines)\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2022-11-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Neiranji Xuebao/Transactions of CSICE (Chinese Society for Internal Combustion Engines)\",\"FirstCategoryId\":\"1087\",\"ListUrlMain\":\"https://doi.org/10.20998/0419-8719.2022.2.08\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"Engineering\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Neiranji Xuebao/Transactions of CSICE (Chinese Society for Internal Combustion Engines)","FirstCategoryId":"1087","ListUrlMain":"https://doi.org/10.20998/0419-8719.2022.2.08","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Engineering","Score":null,"Total":0}
引用次数: 0

摘要

分析了规范性文件- UNECE条例R-49、R-96、国际标准ISO 8178等关于用空气稀释运输柴油发动机废气和对其中固体颗粒含量进行重量控制的参考全流和替代部分流系统(隧道)的技术特性和使用条件的要求。本文研究了国内外不同类型稀释隧道的运行经验,包括带1和2稀释线的全流、部分流微型和微型隧道以及部分流微型和微型隧道,从而可以建立经验依赖关系,以评估气体取样温度制度对柴油不同运行模式下质量排放颗粒物测量精度的影响程度。数学模型已经被开发出来,以确定各种类型隧道中稀释废气的样品温度,并估计由此产生的柴油颗粒物(PM指标)标准化平均操作排放的测量误差。基于1Ch12/14和4ChN12/14运输柴油机按13步ESC试验循环进行的环境试验结果,建立数学模型,对直径为10 cm的微型隧道和直径为3 cm的微型隧道的取样温度对精度的影响进行了计算研究,并与直径为46 cm的参考隧道进行了比较。研究结果表明,通过调整微隧道内试样的温度,消除了测量PM指标的显著方法误差(-1.6…-1.7%。结果表明,在小型隧道中,相应的误差不显著,为-0.3…-0.4%,表示该系统不需要调整样品温度。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
IMPROVING THE ACCURACY OF SYSTEMS FOR GRAVIMETRIC CONTROL OF PARTICULATE MATTER IN EXHAUST GASES OF TRANSPORT DIESEL ENGINES
The requirements of regulatory documents - UNECE Regulations R-49, R-96, international standard ISO 8178, etc. were analyzed regarding the technical characteristics and conditions of use of reference full-flow and alternative partial-flow systems (tunnels) for diluting the exhaust gases of transport diesel engines with air and carrying out gravimetric control of the content of solid particles in them. The world and domestic experience of operating dilution tunnels of various types - full-flow with 1st and 2nd dilution lines and partial-flow mini- and micro-tunnels and partial-flow mini- and micro-tunnels were studied, which made it possible to establish empirical dependencies for evaluating the degree of influence of the temperature regimes of gas sampling on the accuracy of measurements of mass emissions particulate matter in different modes of diesel operation. Mathematical models have been developed to determine the sample temperatures of diluted exhaust gases in tunnels of various types and to estimate the resulting measurement error of the normalized average operational emission of diesel particulate matter - the PM indicator. Based on the results of environmental tests of transport diesel engines 1Ch12/14 and 4ChN12/14 according to the 13-step ESC test cycle and developed mathematical models, calculation studies were carried out to assess the effect on the accuracy of a mini-tunnel with a diameter of 10 cm and a micro-tunnel with a diameter of 3 cm of the sampling temperature regimes, which were compared with a reference tunnel with a diameter of 46 cm. The research results proved the expediency of adjusting the temperature of the sample in the micro-tunnel to increase its accuracy by eliminating the significant methodical errors of measuring the PM indicator, which amount to -1.6 ... -1.7%. It was established that in the mini-tunnel the corresponding errors are not significant and amount to -0.3 ... -0.4%, which indicates that there is no need to adjust the temperature of the sample in this system.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
CiteScore
1.00
自引率
0.00%
发文量
3050
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信