Water injection in spark ignition engines—Impact on engine cycle

Water injection in internal combustion engines is mainly used for additional cooling of the combustion chamber and knock suppression. The main advantages of the water injection are the potential for the enhancement of the performance of the engine. Studies conducted so far have aimed to track engine...

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Autores principales:	Michael Fratita, Florin Popescu, Jorge Martins, F.P. Brito, Tiago Costa, Ion Ion
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Port water injection Side valve engine Spark ignition engine Internal combustion engine Engine cycle Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/a40d202829644062a01e19cf3a10adbb
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id	oai:doaj.org-article:a40d202829644062a01e19cf3a10adbb
record_format	dspace
spelling	oai:doaj.org-article:a40d202829644062a01e19cf3a10adbb2021-11-18T04:49:43ZWater injection in spark ignition engines—Impact on engine cycle2352-484710.1016/j.egyr.2021.07.113https://doaj.org/article/a40d202829644062a01e19cf3a10adbb2021-11-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S235248472100576Xhttps://doaj.org/toc/2352-4847Water injection in internal combustion engines is mainly used for additional cooling of the combustion chamber and knock suppression. The main advantages of the water injection are the potential for the enhancement of the performance of the engine. Studies conducted so far have aimed to track engine performance at maximum load and fuel consumption (brake-specific fuel consumption BSFC). Specialized literature is less consistent as regards to the injection of water at medium and low loads. This work monitors the effects of water injection at medium loads and the evolution processes of the four-strokes in the engine with and without water injection. A side-valve, air cooled natural aspirated engine with water and fuel injections in the intake manifold was used for this study. The work during expansion was increased, but this trend was reversed by the higher loads required during intake, compression and exhaust strokes, leading to a reduction in the indicated efficiency when water was injected.Michael FratitaFlorin PopescuJorge MartinsF.P. BritoTiago CostaIon IonElsevierarticlePort water injectionSide valve engineSpark ignition engineInternal combustion engineEngine cycleElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENEnergy Reports, Vol 7, Iss , Pp 374-379 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Port water injection Side valve engine Spark ignition engine Internal combustion engine Engine cycle Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Port water injection Side valve engine Spark ignition engine Internal combustion engine Engine cycle Electrical engineering. Electronics. Nuclear engineering TK1-9971 Michael Fratita Florin Popescu Jorge Martins F.P. Brito Tiago Costa Ion Ion Water injection in spark ignition engines—Impact on engine cycle
description	Water injection in internal combustion engines is mainly used for additional cooling of the combustion chamber and knock suppression. The main advantages of the water injection are the potential for the enhancement of the performance of the engine. Studies conducted so far have aimed to track engine performance at maximum load and fuel consumption (brake-specific fuel consumption BSFC). Specialized literature is less consistent as regards to the injection of water at medium and low loads. This work monitors the effects of water injection at medium loads and the evolution processes of the four-strokes in the engine with and without water injection. A side-valve, air cooled natural aspirated engine with water and fuel injections in the intake manifold was used for this study. The work during expansion was increased, but this trend was reversed by the higher loads required during intake, compression and exhaust strokes, leading to a reduction in the indicated efficiency when water was injected.
format	article
author	Michael Fratita Florin Popescu Jorge Martins F.P. Brito Tiago Costa Ion Ion
author_facet	Michael Fratita Florin Popescu Jorge Martins F.P. Brito Tiago Costa Ion Ion
author_sort	Michael Fratita
title	Water injection in spark ignition engines—Impact on engine cycle
title_short	Water injection in spark ignition engines—Impact on engine cycle
title_full	Water injection in spark ignition engines—Impact on engine cycle
title_fullStr	Water injection in spark ignition engines—Impact on engine cycle
title_full_unstemmed	Water injection in spark ignition engines—Impact on engine cycle
title_sort	water injection in spark ignition engines—impact on engine cycle
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/a40d202829644062a01e19cf3a10adbb
work_keys_str_mv	AT michaelfratita waterinjectioninsparkignitionenginesimpactonenginecycle AT florinpopescu waterinjectioninsparkignitionenginesimpactonenginecycle AT jorgemartins waterinjectioninsparkignitionenginesimpactonenginecycle AT fpbrito waterinjectioninsparkignitionenginesimpactonenginecycle AT tiagocosta waterinjectioninsparkignitionenginesimpactonenginecycle AT ionion waterinjectioninsparkignitionenginesimpactonenginecycle
_version_	1718424996817141760

Water injection in spark ignition engines—Impact on engine cycle

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