Experimental Research of High-Pressure Methane Pulse Jet and Premixed Ignition Combustion Performance of a Direct Injection Injector

Natural gas (NG) direct injection (DI) technology benefits the engine with high efficiency and clean emissions, and the high-pressure gas fuel injection process causes crucial effects on the combustion. This study presents an optical experimental investigation on the high-pressure methane single-hol...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Shenggang Guo, Yan Lei, Xiaofeng Wang, Tao Qiu, Bin Pang, Lei Shi, Xuehui An
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	direct injection methane gas jet premixed ignition constant volume bomb (CVB) Chemical technology TP1-1185 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/70b1a3ec1a8b4e88a4941b0635afd6b3
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:70b1a3ec1a8b4e88a4941b0635afd6b3
record_format	dspace
spelling	oai:doaj.org-article:70b1a3ec1a8b4e88a4941b0635afd6b32021-11-25T18:51:08ZExperimental Research of High-Pressure Methane Pulse Jet and Premixed Ignition Combustion Performance of a Direct Injection Injector10.3390/pr91119772227-9717https://doaj.org/article/70b1a3ec1a8b4e88a4941b0635afd6b32021-11-01T00:00:00Zhttps://www.mdpi.com/2227-9717/9/11/1977https://doaj.org/toc/2227-9717Natural gas (NG) direct injection (DI) technology benefits the engine with high efficiency and clean emissions, and the high-pressure gas fuel injection process causes crucial effects on the combustion. This study presents an optical experimental investigation on the high-pressure methane single-hole direct injection and premixed ignition combustion based on a visualization cuboid constant volume bomb (CVB) test rig. The experimental results show that the methane jet process is divided into two stages. The methane gas jet travels at a faster speed during the unstable stage I than that during the stable stage II. The injection pressure causes more influence on both the jet penetration distance and the jet cone area during stage II. The methane jet premixed flame is a stable flame with a nearly spherical shape, and its equivalent radius linearly increases. The methane jet premixed flame area also increases while the flame stretch rate declines. The methane jet premixed flame velocity rises as both the standing time and equivalent ratio increase. The methane jet premixed flame is a partial premixed flame, and the peak of the methane jet premixed flame occurs at greater equivalence ratio <i>ϕ</i>, i.e., <i>ϕ</i> > 2. As the injection pressure rises, the jet premixed flame equivalent radius increases, and the flame velocity linearly increases. The higher the methane injection pressure, the faster the jet premixed flame velocity.Shenggang GuoYan LeiXiaofeng WangTao QiuBin PangLei ShiXuehui AnMDPI AGarticledirect injectionmethanegas jetpremixed ignitionconstant volume bomb (CVB)Chemical technologyTP1-1185ChemistryQD1-999ENProcesses, Vol 9, Iss 1977, p 1977 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	direct injection methane gas jet premixed ignition constant volume bomb (CVB) Chemical technology TP1-1185 Chemistry QD1-999
spellingShingle	direct injection methane gas jet premixed ignition constant volume bomb (CVB) Chemical technology TP1-1185 Chemistry QD1-999 Shenggang Guo Yan Lei Xiaofeng Wang Tao Qiu Bin Pang Lei Shi Xuehui An Experimental Research of High-Pressure Methane Pulse Jet and Premixed Ignition Combustion Performance of a Direct Injection Injector
description	Natural gas (NG) direct injection (DI) technology benefits the engine with high efficiency and clean emissions, and the high-pressure gas fuel injection process causes crucial effects on the combustion. This study presents an optical experimental investigation on the high-pressure methane single-hole direct injection and premixed ignition combustion based on a visualization cuboid constant volume bomb (CVB) test rig. The experimental results show that the methane jet process is divided into two stages. The methane gas jet travels at a faster speed during the unstable stage I than that during the stable stage II. The injection pressure causes more influence on both the jet penetration distance and the jet cone area during stage II. The methane jet premixed flame is a stable flame with a nearly spherical shape, and its equivalent radius linearly increases. The methane jet premixed flame area also increases while the flame stretch rate declines. The methane jet premixed flame velocity rises as both the standing time and equivalent ratio increase. The methane jet premixed flame is a partial premixed flame, and the peak of the methane jet premixed flame occurs at greater equivalence ratio <i>ϕ</i>, i.e., <i>ϕ</i> > 2. As the injection pressure rises, the jet premixed flame equivalent radius increases, and the flame velocity linearly increases. The higher the methane injection pressure, the faster the jet premixed flame velocity.
format	article
author	Shenggang Guo Yan Lei Xiaofeng Wang Tao Qiu Bin Pang Lei Shi Xuehui An
author_facet	Shenggang Guo Yan Lei Xiaofeng Wang Tao Qiu Bin Pang Lei Shi Xuehui An
author_sort	Shenggang Guo
title	Experimental Research of High-Pressure Methane Pulse Jet and Premixed Ignition Combustion Performance of a Direct Injection Injector
title_short	Experimental Research of High-Pressure Methane Pulse Jet and Premixed Ignition Combustion Performance of a Direct Injection Injector
title_full	Experimental Research of High-Pressure Methane Pulse Jet and Premixed Ignition Combustion Performance of a Direct Injection Injector
title_fullStr	Experimental Research of High-Pressure Methane Pulse Jet and Premixed Ignition Combustion Performance of a Direct Injection Injector
title_full_unstemmed	Experimental Research of High-Pressure Methane Pulse Jet and Premixed Ignition Combustion Performance of a Direct Injection Injector
title_sort	experimental research of high-pressure methane pulse jet and premixed ignition combustion performance of a direct injection injector
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/70b1a3ec1a8b4e88a4941b0635afd6b3
work_keys_str_mv	AT shenggangguo experimentalresearchofhighpressuremethanepulsejetandpremixedignitioncombustionperformanceofadirectinjectioninjector AT yanlei experimentalresearchofhighpressuremethanepulsejetandpremixedignitioncombustionperformanceofadirectinjectioninjector AT xiaofengwang experimentalresearchofhighpressuremethanepulsejetandpremixedignitioncombustionperformanceofadirectinjectioninjector AT taoqiu experimentalresearchofhighpressuremethanepulsejetandpremixedignitioncombustionperformanceofadirectinjectioninjector AT binpang experimentalresearchofhighpressuremethanepulsejetandpremixedignitioncombustionperformanceofadirectinjectioninjector AT leishi experimentalresearchofhighpressuremethanepulsejetandpremixedignitioncombustionperformanceofadirectinjectioninjector AT xuehuian experimentalresearchofhighpressuremethanepulsejetandpremixedignitioncombustionperformanceofadirectinjectioninjector
_version_	1718410651568701440

Experimental Research of High-Pressure Methane Pulse Jet and Premixed Ignition Combustion Performance of a Direct Injection Injector

Ejemplares similares