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Experimental study on the effects of blending PODE(n) on performance, combustion and emission characteristics of heavy-duty diesel engines meeting China VI emission standard

To study the influence of diesel fuel blended with polyoxymethylene dimethyl ethers (PODE(n)), a new alternative fuel with a high oxygen content and large cetane number, on the combustion characteristics, fuel economies, and emission characteristics of heavy-duty diesel engines that meet China VI em...

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Autores principales: Zhao, Yuwei, Geng, Cong, E, Weibo, Li, Xiaoquan, Cheng, Peiyuan, Niu, Tianlin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8097013/
https://www.ncbi.nlm.nih.gov/pubmed/33947936
http://dx.doi.org/10.1038/s41598-021-89057-y
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author Zhao, Yuwei
Geng, Cong
E, Weibo
Li, Xiaoquan
Cheng, Peiyuan
Niu, Tianlin
author_facet Zhao, Yuwei
Geng, Cong
E, Weibo
Li, Xiaoquan
Cheng, Peiyuan
Niu, Tianlin
author_sort Zhao, Yuwei
collection PubMed
description To study the influence of diesel fuel blended with polyoxymethylene dimethyl ethers (PODE(n)), a new alternative fuel with a high oxygen content and large cetane number, on the combustion characteristics, fuel economies, and emission characteristics of heavy-duty diesel engines that meet China VI emission standards, relevant tests were conducted on a supercharged intercooled high-pressure common-rail diesel engine. The PODE(n) were blended with diesel fuel at three different ratios (volume fractions of 10%, 20%, and 30%). The test results showed that the PODE(n) could optimize the combustion process of diesel engines that met the China VI emission standards, effectively improve the thermal efficiencies of diesel engines, and reduce the emissions of hydrocarbon (HC), carbon monoxide (CO), and soot. With an increase in the PODE(n) blending ratio, the peak values of the in-cylinder pressure, average in-cylinder temperature, and instantaneous heat release rate gradually decreased, and each peak progressively moved forward. As the start of combustion gradually moved forward, the combustion duration was shortened by 0.7–2.8°CA, the heat release process became more concentrated, and the effective thermal efficiency was increased by up to 2.57%. The effective fuel consumption gradually increased, yet the equivalent effective fuel consumption gradually decreased, with the largest drop being as high as 4.55%. The nitrogen oxides (NO(x)) emission increased slightly, and the emissions of HC, CO, and soot gradually decreased. The emissions of CO and soot declined significantly under high-speed and high-load conditions, with the highest reductions reaching 66.2% and 76.3%, respectively.
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spelling pubmed-80970132021-05-05 Experimental study on the effects of blending PODE(n) on performance, combustion and emission characteristics of heavy-duty diesel engines meeting China VI emission standard Zhao, Yuwei Geng, Cong E, Weibo Li, Xiaoquan Cheng, Peiyuan Niu, Tianlin Sci Rep Article To study the influence of diesel fuel blended with polyoxymethylene dimethyl ethers (PODE(n)), a new alternative fuel with a high oxygen content and large cetane number, on the combustion characteristics, fuel economies, and emission characteristics of heavy-duty diesel engines that meet China VI emission standards, relevant tests were conducted on a supercharged intercooled high-pressure common-rail diesel engine. The PODE(n) were blended with diesel fuel at three different ratios (volume fractions of 10%, 20%, and 30%). The test results showed that the PODE(n) could optimize the combustion process of diesel engines that met the China VI emission standards, effectively improve the thermal efficiencies of diesel engines, and reduce the emissions of hydrocarbon (HC), carbon monoxide (CO), and soot. With an increase in the PODE(n) blending ratio, the peak values of the in-cylinder pressure, average in-cylinder temperature, and instantaneous heat release rate gradually decreased, and each peak progressively moved forward. As the start of combustion gradually moved forward, the combustion duration was shortened by 0.7–2.8°CA, the heat release process became more concentrated, and the effective thermal efficiency was increased by up to 2.57%. The effective fuel consumption gradually increased, yet the equivalent effective fuel consumption gradually decreased, with the largest drop being as high as 4.55%. The nitrogen oxides (NO(x)) emission increased slightly, and the emissions of HC, CO, and soot gradually decreased. The emissions of CO and soot declined significantly under high-speed and high-load conditions, with the highest reductions reaching 66.2% and 76.3%, respectively. Nature Publishing Group UK 2021-05-04 /pmc/articles/PMC8097013/ /pubmed/33947936 http://dx.doi.org/10.1038/s41598-021-89057-y Text en © The Author(s) 2021 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Zhao, Yuwei
Geng, Cong
E, Weibo
Li, Xiaoquan
Cheng, Peiyuan
Niu, Tianlin
Experimental study on the effects of blending PODE(n) on performance, combustion and emission characteristics of heavy-duty diesel engines meeting China VI emission standard
title Experimental study on the effects of blending PODE(n) on performance, combustion and emission characteristics of heavy-duty diesel engines meeting China VI emission standard
title_full Experimental study on the effects of blending PODE(n) on performance, combustion and emission characteristics of heavy-duty diesel engines meeting China VI emission standard
title_fullStr Experimental study on the effects of blending PODE(n) on performance, combustion and emission characteristics of heavy-duty diesel engines meeting China VI emission standard
title_full_unstemmed Experimental study on the effects of blending PODE(n) on performance, combustion and emission characteristics of heavy-duty diesel engines meeting China VI emission standard
title_short Experimental study on the effects of blending PODE(n) on performance, combustion and emission characteristics of heavy-duty diesel engines meeting China VI emission standard
title_sort experimental study on the effects of blending pode(n) on performance, combustion and emission characteristics of heavy-duty diesel engines meeting china vi emission standard
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8097013/
https://www.ncbi.nlm.nih.gov/pubmed/33947936
http://dx.doi.org/10.1038/s41598-021-89057-y
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