Baowei Fan , Mingming Fan , Jianfeng Pan , Wenming Yang , Yonghao Zeng , Haidong Yang , Xin Wu
{"title":"Research and evaluation of turbulent jet ignition mode for improving combustion performance of ethanol rotary engine","authors":"Baowei Fan , Mingming Fan , Jianfeng Pan , Wenming Yang , Yonghao Zeng , Haidong Yang , Xin Wu","doi":"10.1016/j.applthermaleng.2024.125067","DOIUrl":null,"url":null,"abstract":"<div><div>Improving the combustion performance of ethanol rotary engine (ERE) is crucial for enhancing energy efficiency and reducing emissions, particularly in the context of global emission reduction efforts. Although the application of ethanol as a clean alternative fuel is growing, research on optimizing its combustion in rotary engines remains limited. The novelty of this work lies in the comparison of two ignition modes: the conventional spark plug ignition mode (CSPIM) and the turbulent jet ignition mode (TJIM). Experimental validation and numerical simulation methods were employed to evaluate the effects of these two ignition modes on in-cylinder flow field and combustion characteristics. The results indicate that, compared to the CSPIM, the use of the TJIM significantly improves turbulence intensity, increases peak pressure, reduces combustion duration, and expands the flame propagation area, leading to an average increase of 0.42 kW in the power output of the ERE. Furthermore, the use of the TJIM leads to a 130 % average increase in NO mass produced in the cylinder, while CO emissions are reduced by 40 % on average. These findings demonstrate that the TJIM has significant potential to improve the combustion performance of ERE, offering considerable advantages in both efficiency and emissions control.</div></div>","PeriodicalId":8201,"journal":{"name":"Applied Thermal Engineering","volume":"261 ","pages":"Article 125067"},"PeriodicalIF":6.1000,"publicationDate":"2024-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Thermal Engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1359431124027352","RegionNum":2,"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
Abstract
Improving the combustion performance of ethanol rotary engine (ERE) is crucial for enhancing energy efficiency and reducing emissions, particularly in the context of global emission reduction efforts. Although the application of ethanol as a clean alternative fuel is growing, research on optimizing its combustion in rotary engines remains limited. The novelty of this work lies in the comparison of two ignition modes: the conventional spark plug ignition mode (CSPIM) and the turbulent jet ignition mode (TJIM). Experimental validation and numerical simulation methods were employed to evaluate the effects of these two ignition modes on in-cylinder flow field and combustion characteristics. The results indicate that, compared to the CSPIM, the use of the TJIM significantly improves turbulence intensity, increases peak pressure, reduces combustion duration, and expands the flame propagation area, leading to an average increase of 0.42 kW in the power output of the ERE. Furthermore, the use of the TJIM leads to a 130 % average increase in NO mass produced in the cylinder, while CO emissions are reduced by 40 % on average. These findings demonstrate that the TJIM has significant potential to improve the combustion performance of ERE, offering considerable advantages in both efficiency and emissions control.
期刊介绍:
Applied Thermal Engineering disseminates novel research related to the design, development and demonstration of components, devices, equipment, technologies and systems involving thermal processes for the production, storage, utilization and conservation of energy, with a focus on engineering application.
The journal publishes high-quality and high-impact Original Research Articles, Review Articles, Short Communications and Letters to the Editor on cutting-edge innovations in research, and recent advances or issues of interest to the thermal engineering community.