Emissions Characteristics of Soy Methyl Ester Fuels in an IDI Compression Ignition Engine

950400

02/01/1995

Event
International Congress & Exposition
Authors Abstract
Content
As part of an ongoing program to control the emissions of diesel-powered equipment used in underground mines, the U. S. Bureau of Mines evaluated exhaust emissions from a compression ignition engine using oxygenated diesel fuels and a diesel oxidation catalyst (DOC). The fuels include neat (100%) soy methyl ester (SME), and a blend of 30% SME (by volume) with 70% petroleum diesel fuel. A Caterpillar 3304 PCNA engine was tested for approximately 50 hours on each fuel. Compared with commercial low-sulfur diesel fuel (D2), neat SME increased volatile organic diesel particulate matter (DPM) but greatly decreased non-volatile DPM, for a net decrease in total DPM. The DOC further reduced volatile and total DPM NOx emissions were slightly reduced for the case of neat SME, but otherwise were not significantly affected.
Peak brake power decreased 9% and brake specific fuel consumption increased 13 to 14% for the neat methyl soyate because of its lower energy content compared with D2. An analysis of apparent heat release rates found that SME exhibited a shorter ignition delay and some part load reductions in premixed burn.
Meta TagsDetails
DOI
https://doi.org/10.4271/950400
Pages
19
Citation
McDonald, J., Purcell, D., McClure, B., and Kittelson, D., "Emissions Characteristics of Soy Methyl Ester Fuels in an IDI Compression Ignition Engine," SAE Technical Paper 950400, 1995, https://doi.org/10.4271/950400.
Additional Details
Publisher
Published
Feb 1, 1995
Product Code
950400
Content Type
Technical Paper
Language
English