Undiluted Measurement of the Particle Size Distribution of Different Oxygenated Biofuels in a Gasoline-Optimised DISI Engine

The utilisation of internal combustion engines is one of the main causes of particle emissions in urban areas. As the interest for the utilisation of biofuels increases, it is important to understand their effect on particle number emissions. In this paper, the particle size distribution and the par...

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Autores principales:	Tara Larsson, Ulf Olofsson, Anders Christiansen Erlandsson
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	renewable fuels biofuels ethanol methanol butanol MTBE Meteorology. Climatology QC851-999
Acceso en línea:	https://doaj.org/article/299021dcc1154820b0a6d4350d43151c
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id	oai:doaj.org-article:299021dcc1154820b0a6d4350d43151c
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spelling	oai:doaj.org-article:299021dcc1154820b0a6d4350d43151c2021-11-25T16:45:33ZUndiluted Measurement of the Particle Size Distribution of Different Oxygenated Biofuels in a Gasoline-Optimised DISI Engine10.3390/atmos121114932073-4433https://doaj.org/article/299021dcc1154820b0a6d4350d43151c2021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4433/12/11/1493https://doaj.org/toc/2073-4433The utilisation of internal combustion engines is one of the main causes of particle emissions in urban areas. As the interest for the utilisation of biofuels increases, it is important to understand their effect on particle number emissions. In this paper, the particle size distribution and the particle number emissions from a gasoline-optimised direct-injected spark-ignited (DISI) engine are investigated. The effects of five different biofuel alternatives on these emissions were evaluated and compared to gasoline. The utilisation of the high-resolution, high-temperature ELPI+ enabled undiluted measurements of the particle size distribution down to 6 nm, without extensive cooling of the engine exhaust. Contrary to other studies, the results show that the particle number emissions for the three measured cut-off sizes (23, 10 and 7 nm) increased with the utilisation of oxygenated biofuels. The results indicate that the decreased volatility and energy density of the alcohols has a more significant impact on the particle formation in a DISI engine than the increased oxygen content of these fuels.Tara LarssonUlf OlofssonAnders Christiansen ErlandssonMDPI AGarticlerenewable fuelsbiofuelsethanolmethanolbutanolMTBEMeteorology. ClimatologyQC851-999ENAtmosphere, Vol 12, Iss 1493, p 1493 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	renewable fuels biofuels ethanol methanol butanol MTBE Meteorology. Climatology QC851-999
spellingShingle	renewable fuels biofuels ethanol methanol butanol MTBE Meteorology. Climatology QC851-999 Tara Larsson Ulf Olofsson Anders Christiansen Erlandsson Undiluted Measurement of the Particle Size Distribution of Different Oxygenated Biofuels in a Gasoline-Optimised DISI Engine
description	The utilisation of internal combustion engines is one of the main causes of particle emissions in urban areas. As the interest for the utilisation of biofuels increases, it is important to understand their effect on particle number emissions. In this paper, the particle size distribution and the particle number emissions from a gasoline-optimised direct-injected spark-ignited (DISI) engine are investigated. The effects of five different biofuel alternatives on these emissions were evaluated and compared to gasoline. The utilisation of the high-resolution, high-temperature ELPI+ enabled undiluted measurements of the particle size distribution down to 6 nm, without extensive cooling of the engine exhaust. Contrary to other studies, the results show that the particle number emissions for the three measured cut-off sizes (23, 10 and 7 nm) increased with the utilisation of oxygenated biofuels. The results indicate that the decreased volatility and energy density of the alcohols has a more significant impact on the particle formation in a DISI engine than the increased oxygen content of these fuels.
format	article
author	Tara Larsson Ulf Olofsson Anders Christiansen Erlandsson
author_facet	Tara Larsson Ulf Olofsson Anders Christiansen Erlandsson
author_sort	Tara Larsson
title	Undiluted Measurement of the Particle Size Distribution of Different Oxygenated Biofuels in a Gasoline-Optimised DISI Engine
title_short	Undiluted Measurement of the Particle Size Distribution of Different Oxygenated Biofuels in a Gasoline-Optimised DISI Engine
title_full	Undiluted Measurement of the Particle Size Distribution of Different Oxygenated Biofuels in a Gasoline-Optimised DISI Engine
title_fullStr	Undiluted Measurement of the Particle Size Distribution of Different Oxygenated Biofuels in a Gasoline-Optimised DISI Engine
title_full_unstemmed	Undiluted Measurement of the Particle Size Distribution of Different Oxygenated Biofuels in a Gasoline-Optimised DISI Engine
title_sort	undiluted measurement of the particle size distribution of different oxygenated biofuels in a gasoline-optimised disi engine
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/299021dcc1154820b0a6d4350d43151c
work_keys_str_mv	AT taralarsson undilutedmeasurementoftheparticlesizedistributionofdifferentoxygenatedbiofuelsinagasolineoptimiseddisiengine AT ulfolofsson undilutedmeasurementoftheparticlesizedistributionofdifferentoxygenatedbiofuelsinagasolineoptimiseddisiengine AT anderschristiansenerlandsson undilutedmeasurementoftheparticlesizedistributionofdifferentoxygenatedbiofuelsinagasolineoptimiseddisiengine
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Undiluted Measurement of the Particle Size Distribution of Different Oxygenated Biofuels in a Gasoline-Optimised DISI Engine

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