Combined influence of ignition chamber volume and spark plug channel diameter on the performance of small-scale natural gas Wankel rotary engine

To improve the poor in-cylinder combustion condition of the small spark ignition Wankel rotary engine (SI-WRE) and improve its efficiency, this paper conducted a comprehensive optimization of its ignition environment. Since there are no known effects of ignition chamber characteristics, including ig...

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Autores principales:	Huichao Jiao, Jinxiang Liu, Run Zou, Nana Wang
Formato:	article
Lenguaje:	EN
Publicado:	Taylor & Francis Group 2021
Materias:	spark ignition wankel rotary engine (si-wre) ignition chamber spark plug channel ignition environment Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/7365d6a158834adbab743e92bc2fdd35
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spelling	oai:doaj.org-article:7365d6a158834adbab743e92bc2fdd352021-11-11T14:23:42ZCombined influence of ignition chamber volume and spark plug channel diameter on the performance of small-scale natural gas Wankel rotary engine1994-20601997-003X10.1080/19942060.2021.1994470https://doaj.org/article/7365d6a158834adbab743e92bc2fdd352021-01-01T00:00:00Zhttp://dx.doi.org/10.1080/19942060.2021.1994470https://doaj.org/toc/1994-2060https://doaj.org/toc/1997-003XTo improve the poor in-cylinder combustion condition of the small spark ignition Wankel rotary engine (SI-WRE) and improve its efficiency, this paper conducted a comprehensive optimization of its ignition environment. Since there are no known effects of ignition chamber characteristics, including ignition chamber volume ( $ V_{ic} $ ) and spark plug channel diameter ( $ D_{spc} $ ), on the ignition environment, various combinations of $ V_{ic} $ and $ D_{spc} $ were established, simulated, and compared, using Computational Fluid Dynamics (CFD) methods with validated models. As there are small and complex structures in the small SI-WRE, along with the huge simulation load in the case study, special treatments were adopted in mesh division to maintain the fast and accurate simulation. The results showed a wide thermal efficiency range of 8.51–32.13% under various $ V_{ic} $ and $ D_{spc} $ combinations, indicating that the engine performance was deeply limited by the ignition chamber. $ V_{ic} $ and $ D_{spc} $ also had profound influences on short-term (affected by $ D_{spc} $ ) and long-term (affected by $ V_{ic} $ ) flow losses, fresh intake at spark region, combustion speed, and working stability. Stable working condition was achieved when $ V_{ic} = 1.5 $ cc and $ D_{spc} = 2 $ mm, while powerful situations were $ V_{ic} = 1.5 $ cc and $ D_{spc} = 8 $ mm, or $ V_{ic} = 0.5 $ cc and $ D_{spc} = 2 $ mm.Huichao JiaoJinxiang LiuRun ZouNana WangTaylor & Francis Grouparticlespark ignition wankel rotary engine (si-wre)ignition chamberspark plug channelignition environmentEngineering (General). Civil engineering (General)TA1-2040ENEngineering Applications of Computational Fluid Mechanics, Vol 15, Iss 1 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	spark ignition wankel rotary engine (si-wre) ignition chamber spark plug channel ignition environment Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	spark ignition wankel rotary engine (si-wre) ignition chamber spark plug channel ignition environment Engineering (General). Civil engineering (General) TA1-2040 Huichao Jiao Jinxiang Liu Run Zou Nana Wang Combined influence of ignition chamber volume and spark plug channel diameter on the performance of small-scale natural gas Wankel rotary engine
description	To improve the poor in-cylinder combustion condition of the small spark ignition Wankel rotary engine (SI-WRE) and improve its efficiency, this paper conducted a comprehensive optimization of its ignition environment. Since there are no known effects of ignition chamber characteristics, including ignition chamber volume ( $ V_{ic} $ ) and spark plug channel diameter ( $ D_{spc} $ ), on the ignition environment, various combinations of $ V_{ic} $ and $ D_{spc} $ were established, simulated, and compared, using Computational Fluid Dynamics (CFD) methods with validated models. As there are small and complex structures in the small SI-WRE, along with the huge simulation load in the case study, special treatments were adopted in mesh division to maintain the fast and accurate simulation. The results showed a wide thermal efficiency range of 8.51–32.13% under various $ V_{ic} $ and $ D_{spc} $ combinations, indicating that the engine performance was deeply limited by the ignition chamber. $ V_{ic} $ and $ D_{spc} $ also had profound influences on short-term (affected by $ D_{spc} $ ) and long-term (affected by $ V_{ic} $ ) flow losses, fresh intake at spark region, combustion speed, and working stability. Stable working condition was achieved when $ V_{ic} = 1.5 $ cc and $ D_{spc} = 2 $ mm, while powerful situations were $ V_{ic} = 1.5 $ cc and $ D_{spc} = 8 $ mm, or $ V_{ic} = 0.5 $ cc and $ D_{spc} = 2 $ mm.
format	article
author	Huichao Jiao Jinxiang Liu Run Zou Nana Wang
author_facet	Huichao Jiao Jinxiang Liu Run Zou Nana Wang
author_sort	Huichao Jiao
title	Combined influence of ignition chamber volume and spark plug channel diameter on the performance of small-scale natural gas Wankel rotary engine
title_short	Combined influence of ignition chamber volume and spark plug channel diameter on the performance of small-scale natural gas Wankel rotary engine
title_full	Combined influence of ignition chamber volume and spark plug channel diameter on the performance of small-scale natural gas Wankel rotary engine
title_fullStr	Combined influence of ignition chamber volume and spark plug channel diameter on the performance of small-scale natural gas Wankel rotary engine
title_full_unstemmed	Combined influence of ignition chamber volume and spark plug channel diameter on the performance of small-scale natural gas Wankel rotary engine
title_sort	combined influence of ignition chamber volume and spark plug channel diameter on the performance of small-scale natural gas wankel rotary engine
publisher	Taylor & Francis Group
publishDate	2021
url	https://doaj.org/article/7365d6a158834adbab743e92bc2fdd35
work_keys_str_mv	AT huichaojiao combinedinfluenceofignitionchambervolumeandsparkplugchanneldiameterontheperformanceofsmallscalenaturalgaswankelrotaryengine AT jinxiangliu combinedinfluenceofignitionchambervolumeandsparkplugchanneldiameterontheperformanceofsmallscalenaturalgaswankelrotaryengine AT runzou combinedinfluenceofignitionchambervolumeandsparkplugchanneldiameterontheperformanceofsmallscalenaturalgaswankelrotaryengine AT nanawang combinedinfluenceofignitionchambervolumeandsparkplugchanneldiameterontheperformanceofsmallscalenaturalgaswankelrotaryengine
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Combined influence of ignition chamber volume and spark plug channel diameter on the performance of small-scale natural gas Wankel rotary engine

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