Fabio Bozza , Luigi Teodosio , Josip Krajnović , Momir Sjerić , Vincenzo De Bellis , Enrica Malfi
{"title":"对包括不同前腔几何形状在内的前腔发动机燃烧和污染物排放模型进行广泛验证","authors":"Fabio Bozza , Luigi Teodosio , Josip Krajnović , Momir Sjerić , Vincenzo De Bellis , Enrica Malfi","doi":"10.1016/j.fuel.2024.132282","DOIUrl":null,"url":null,"abstract":"<div><p>In this work, a 0D/1D model of a single-cylinder pre-chamber spark ignition (PCSI) engine is extensively validated with experimental data in terms of performance, combustion, and emissions by varying the pre-chamber geometry and operating conditions.</p><p>In the first stage, an experimental study is carried out on the PCSI engine at 1600 rpm and wide-open throttle, exploring different pre-chamber (PC) designs and various relative air/fuel (A/F) ratios, λ, in the main chamber.</p><p>In the second stage, a phenomenological combustion model for PCSI engines is coupled with additional user-defined sub-models of in-cylinder turbulence, heat transfer, and pollutant emissions. These are integrated into a 1D engine model and used to reproduce a set of 16 measured data for a reference PC geometry. The model adequately describes the performance, pollutant production, and burn rate in both the pre- and main-chamber considering the effects of jet-induced turbulence and distributed multiple flame kernels in the main chamber.</p><p>The predictive capability of the 1D model is further tested on an extended dataset composed of 163 points, including variations in the PC geometry, proving to satisfactorily reproduce experiments in terms of performance, combustion, and emissions. This last aspect represents the novelty of the present work, demonstrating the reliability of the physical background included within the in-cylinder sub-models.</p></div>","PeriodicalId":325,"journal":{"name":"Fuel","volume":null,"pages":null},"PeriodicalIF":6.7000,"publicationDate":"2024-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0016236124014303/pdfft?md5=6cddf577851cb76c66b80a30d835accd&pid=1-s2.0-S0016236124014303-main.pdf","citationCount":"0","resultStr":"{\"title\":\"Extensive validation of a combustion and pollutant emission model of a pre-chamber engine including different pre-chamber geometries\",\"authors\":\"Fabio Bozza , Luigi Teodosio , Josip Krajnović , Momir Sjerić , Vincenzo De Bellis , Enrica Malfi\",\"doi\":\"10.1016/j.fuel.2024.132282\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>In this work, a 0D/1D model of a single-cylinder pre-chamber spark ignition (PCSI) engine is extensively validated with experimental data in terms of performance, combustion, and emissions by varying the pre-chamber geometry and operating conditions.</p><p>In the first stage, an experimental study is carried out on the PCSI engine at 1600 rpm and wide-open throttle, exploring different pre-chamber (PC) designs and various relative air/fuel (A/F) ratios, λ, in the main chamber.</p><p>In the second stage, a phenomenological combustion model for PCSI engines is coupled with additional user-defined sub-models of in-cylinder turbulence, heat transfer, and pollutant emissions. These are integrated into a 1D engine model and used to reproduce a set of 16 measured data for a reference PC geometry. The model adequately describes the performance, pollutant production, and burn rate in both the pre- and main-chamber considering the effects of jet-induced turbulence and distributed multiple flame kernels in the main chamber.</p><p>The predictive capability of the 1D model is further tested on an extended dataset composed of 163 points, including variations in the PC geometry, proving to satisfactorily reproduce experiments in terms of performance, combustion, and emissions. This last aspect represents the novelty of the present work, demonstrating the reliability of the physical background included within the in-cylinder sub-models.</p></div>\",\"PeriodicalId\":325,\"journal\":{\"name\":\"Fuel\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":6.7000,\"publicationDate\":\"2024-06-29\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S0016236124014303/pdfft?md5=6cddf577851cb76c66b80a30d835accd&pid=1-s2.0-S0016236124014303-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Fuel\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0016236124014303\",\"RegionNum\":1,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENERGY & FUELS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Fuel","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0016236124014303","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
引用次数: 0
摘要
在这项工作中,通过改变前腔几何形状和工作条件,用实验数据对单缸前腔火花点火(PCSI)发动机的 0D/1D 模型在性能、燃烧和排放方面进行了广泛验证。第一阶段,在 1600 rpm 和大开油门条件下对 PCSI 发动机进行了实验研究,探索了不同的前腔(PC)设计和主腔中的各种相对空气/燃料(A/F)比λ。这些模型被集成到一维发动机模型中,并用于再现一组 16 个参考 PC 几何形状的测量数据。该模型充分描述了前腔和主腔的性能、污染物产生量和燃烧率,同时考虑到了喷射引起的湍流和主腔中分布的多个火焰核的影响。该一维模型的预测能力在由 163 个点组成的扩展数据集上进行了进一步测试,包括 PC 几何形状的变化,结果证明在性能、燃烧和排放方面令人满意地再现了实验结果。最后一个方面代表了本工作的新颖性,证明了气缸内子模型所包含的物理背景的可靠性。
Extensive validation of a combustion and pollutant emission model of a pre-chamber engine including different pre-chamber geometries
In this work, a 0D/1D model of a single-cylinder pre-chamber spark ignition (PCSI) engine is extensively validated with experimental data in terms of performance, combustion, and emissions by varying the pre-chamber geometry and operating conditions.
In the first stage, an experimental study is carried out on the PCSI engine at 1600 rpm and wide-open throttle, exploring different pre-chamber (PC) designs and various relative air/fuel (A/F) ratios, λ, in the main chamber.
In the second stage, a phenomenological combustion model for PCSI engines is coupled with additional user-defined sub-models of in-cylinder turbulence, heat transfer, and pollutant emissions. These are integrated into a 1D engine model and used to reproduce a set of 16 measured data for a reference PC geometry. The model adequately describes the performance, pollutant production, and burn rate in both the pre- and main-chamber considering the effects of jet-induced turbulence and distributed multiple flame kernels in the main chamber.
The predictive capability of the 1D model is further tested on an extended dataset composed of 163 points, including variations in the PC geometry, proving to satisfactorily reproduce experiments in terms of performance, combustion, and emissions. This last aspect represents the novelty of the present work, demonstrating the reliability of the physical background included within the in-cylinder sub-models.
期刊介绍:
The exploration of energy sources remains a critical matter of study. For the past nine decades, fuel has consistently held the forefront in primary research efforts within the field of energy science. This area of investigation encompasses a wide range of subjects, with a particular emphasis on emerging concerns like environmental factors and pollution.