Investigation of the Performance and Emission Characteristics of a Diesel Engine with Different Diesel–Methanol Dual-Fuel Ratios

In this paper, the effects of different diesel–methanol blends on the combustion and emission characteristics of diesel engines are investigated in terms of cylinder pressure, heat release rate, cylinder temperature, brake specific fuel consumption, thermal brake efficiency, brake power, and soot, n...

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Autores principales:	Shaoji Chen, Jie Tian, Jiangtao Li, Wangzhen Li, Zhiqing Zhang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	diesel engine diesel methanol AVL-Fire combustion and emission characteristics Chemical technology TP1-1185 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/87cb229f1e2b4213b5f82d23b37be3ee
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spelling	oai:doaj.org-article:87cb229f1e2b4213b5f82d23b37be3ee2021-11-25T18:50:39ZInvestigation of the Performance and Emission Characteristics of a Diesel Engine with Different Diesel–Methanol Dual-Fuel Ratios10.3390/pr91119442227-9717https://doaj.org/article/87cb229f1e2b4213b5f82d23b37be3ee2021-10-01T00:00:00Zhttps://www.mdpi.com/2227-9717/9/11/1944https://doaj.org/toc/2227-9717In this paper, the effects of different diesel–methanol blends on the combustion and emission characteristics of diesel engines are investigated in terms of cylinder pressure, heat release rate, cylinder temperature, brake specific fuel consumption, thermal brake efficiency, brake power, and soot, nitrogen oxides, and carbon monoxide emissions in a four-stroke diesel engine. The corresponding three-dimensional Computational Fluid Dynamics (CFD) model was established using the Anstalt für Verbrennungskraftmaschinen List (AVL)-Fire coupled Chemkin program, and the chemical kinetic mechanism, including 135 reactions and 77 species, was established. The simulation model was verified by the experiment at 50% and 100% loads, and the combustion processes of pure diesel (D100) and diesel–methanol (D90M10, D80M20, and D70M30) were investigated, respectively. The results showed that the increase in methanol content in the blended fuel significantly improved the emission and power characteristics of the diesel engine. More specifically, at full load, the cylinder pressures increased by 0.78%, 1.21%, and 1.41% when the proportions of methanol in the blended fuel were 10%, 20%, and 30%, respectively. In addition, the power decreased by 2.76%, 5.04%, and 8.08%, respectively. When the proportion of methanol in the blended fuel was 10%, 20%, and 30%, the soot emissions were decreased by 16.45%, 29.35%, and 43.05%, respectively. Therefore, methanol content in blended fuel improves the combustion and emission characteristics of the engine.Shaoji ChenJie TianJiangtao LiWangzhen LiZhiqing ZhangMDPI AGarticlediesel enginediesel methanolAVL-Firecombustion and emission characteristicsChemical technologyTP1-1185ChemistryQD1-999ENProcesses, Vol 9, Iss 1944, p 1944 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	diesel engine diesel methanol AVL-Fire combustion and emission characteristics Chemical technology TP1-1185 Chemistry QD1-999
spellingShingle	diesel engine diesel methanol AVL-Fire combustion and emission characteristics Chemical technology TP1-1185 Chemistry QD1-999 Shaoji Chen Jie Tian Jiangtao Li Wangzhen Li Zhiqing Zhang Investigation of the Performance and Emission Characteristics of a Diesel Engine with Different Diesel–Methanol Dual-Fuel Ratios
description	In this paper, the effects of different diesel–methanol blends on the combustion and emission characteristics of diesel engines are investigated in terms of cylinder pressure, heat release rate, cylinder temperature, brake specific fuel consumption, thermal brake efficiency, brake power, and soot, nitrogen oxides, and carbon monoxide emissions in a four-stroke diesel engine. The corresponding three-dimensional Computational Fluid Dynamics (CFD) model was established using the Anstalt für Verbrennungskraftmaschinen List (AVL)-Fire coupled Chemkin program, and the chemical kinetic mechanism, including 135 reactions and 77 species, was established. The simulation model was verified by the experiment at 50% and 100% loads, and the combustion processes of pure diesel (D100) and diesel–methanol (D90M10, D80M20, and D70M30) were investigated, respectively. The results showed that the increase in methanol content in the blended fuel significantly improved the emission and power characteristics of the diesel engine. More specifically, at full load, the cylinder pressures increased by 0.78%, 1.21%, and 1.41% when the proportions of methanol in the blended fuel were 10%, 20%, and 30%, respectively. In addition, the power decreased by 2.76%, 5.04%, and 8.08%, respectively. When the proportion of methanol in the blended fuel was 10%, 20%, and 30%, the soot emissions were decreased by 16.45%, 29.35%, and 43.05%, respectively. Therefore, methanol content in blended fuel improves the combustion and emission characteristics of the engine.
format	article
author	Shaoji Chen Jie Tian Jiangtao Li Wangzhen Li Zhiqing Zhang
author_facet	Shaoji Chen Jie Tian Jiangtao Li Wangzhen Li Zhiqing Zhang
author_sort	Shaoji Chen
title	Investigation of the Performance and Emission Characteristics of a Diesel Engine with Different Diesel–Methanol Dual-Fuel Ratios
title_short	Investigation of the Performance and Emission Characteristics of a Diesel Engine with Different Diesel–Methanol Dual-Fuel Ratios
title_full	Investigation of the Performance and Emission Characteristics of a Diesel Engine with Different Diesel–Methanol Dual-Fuel Ratios
title_fullStr	Investigation of the Performance and Emission Characteristics of a Diesel Engine with Different Diesel–Methanol Dual-Fuel Ratios
title_full_unstemmed	Investigation of the Performance and Emission Characteristics of a Diesel Engine with Different Diesel–Methanol Dual-Fuel Ratios
title_sort	investigation of the performance and emission characteristics of a diesel engine with different diesel–methanol dual-fuel ratios
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/87cb229f1e2b4213b5f82d23b37be3ee
work_keys_str_mv	AT shaojichen investigationoftheperformanceandemissioncharacteristicsofadieselenginewithdifferentdieselmethanoldualfuelratios AT jietian investigationoftheperformanceandemissioncharacteristicsofadieselenginewithdifferentdieselmethanoldualfuelratios AT jiangtaoli investigationoftheperformanceandemissioncharacteristicsofadieselenginewithdifferentdieselmethanoldualfuelratios AT wangzhenli investigationoftheperformanceandemissioncharacteristicsofadieselenginewithdifferentdieselmethanoldualfuelratios AT zhiqingzhang investigationoftheperformanceandemissioncharacteristicsofadieselenginewithdifferentdieselmethanoldualfuelratios
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Investigation of the Performance and Emission Characteristics of a Diesel Engine with Different Diesel–Methanol Dual-Fuel Ratios

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