Experimental Investigation of Injection Pressure Fluctuations Employing Alternative Fuels

2020-01-2122

09/15/2020

Features
Event
SAE Powertrains, Fuels & Lubricants Meeting
Authors Abstract
Content
Injection pressure oscillations are proven to determine considerable deviations from the expected mass flow rate, leading to the jet velocities non-uniformity, which in turn implies the uneven spatial distribution of A/F ratio. Furthermore, once the injector is triggered, these oscillations might lead the rail pressure to experience a decreasing stage, to the detriment of spray penetration length, radial propagation and jet break-up timing. This has urged the research community to develop models predicting injection-induced pressure fluctuations within the rail. Additionally, several devices have been designed to minimize and eliminate such fluctuations. However, despite the wide literature dealing with the injection-induced pressure oscillations, many aspects remain still unclear. Moreover, the compulsory compliance with environmental regulations has shifted focus onto alternative fuels, which represent a promising pathway for sustainable vehicle mobility. This scenario has motivated the authors to undertake an experimental campaign devoted to assess the rail pressure fluctuations employing neat diesel and two furan-based blends under various injection settings. The blends are referred as MF30 and MF50, given the volumetric composition of 30% and 50% of 2-methylfuran, respectively. The paper describes the technical and scientific details of the research activity, which aims to provide a further insight into the correlation of rail pressure fluctuations with fuel properties.
Meta TagsDetails
DOI
https://doi.org/10.4271/2020-01-2122
Pages
12
Citation
Coratella, C., Parry, L., and Xu, H., "Experimental Investigation of Injection Pressure Fluctuations Employing Alternative Fuels," SAE Technical Paper 2020-01-2122, 2020, https://doi.org/10.4271/2020-01-2122.
Additional Details
Publisher
Published
Sep 15, 2020
Product Code
2020-01-2122
Content Type
Technical Paper
Language
English