Impact of the Wall Film Formation on the Full Load Performance of an Engine Operated with the Ethanol Blend E85

2011-32-0535

11/08/2011

Event
Small Engine Technology Conference & Exposition
Authors Abstract
Content
A naturally aspirated SI engine with port fuel injection was investigated at the Institute for Powertrains and Automotive Technology of the Vienna University of Technology to analyze the impact of the ethanol blend E85 on the full load performance. Measurements and numerical studies with a predictive wall film model have been carried out to explain the mixture cooling, the calorific fluid properties after inlet valve closing and the volumetric efficiency with conventional fuel and E85.
It could be shown that only with a detailed modelling of the wall film formation in the inlet port an accurate prediction of the engine's full load performance is possible when studying different fuels with varying fluid properties. Anyway, an integrated approach that includes measurements and numerical investigations is necessary to analyse the mixture preparation and the engine process correctly.
Meta TagsDetails
DOI
https://doi.org/10.4271/2011-32-0535
Pages
9
Citation
Lauer, T., Heiss, M., and Klein, M., "Impact of the Wall Film Formation on the Full Load Performance of an Engine Operated with the Ethanol Blend E85," SAE Technical Paper 2011-32-0535, 2011, https://doi.org/10.4271/2011-32-0535.
Additional Details
Publisher
Published
Nov 8, 2011
Product Code
2011-32-0535
Content Type
Technical Paper
Language
English