Potential of Rapeseed Oil as Diesel Engine Fuel

Nishi, Kensuke; Korematsu, Koji; Tanaka, Junya

doi:10.4271/2004-01-1858

Cited by 9 publications

(3 citation statements)

References 9 publications

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“…Other studies of NOx emissions from direct injection engine using SVO fuels have found opposing results. Nishi et al (2004) [5] records SVO fuel NOx emissions increases of similar magnitude to this study's data. However, Shaheed et al (1999) [6] and Almeida et al (2002) [7] report decreases in NOx emissions for SVO fuel compared to diesel fuel.…”

supporting

confidence: 81%

Performance of a Direct Injection of IC Engine on SVO and Biodiesel from Multiple Feedstocks

Nettles-Anderson¹,

Olsen²,

Johnson³

et al. 2014

JPEE

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Straight Vegetable Oil (SVO) is a promising biofuel with a low energy input to energy output ratio. Successful use of SVO in engines depends on engine performance, wear and emissions. This study focuses on short-term engine emissions and performance. The primary objective is to compare engine efficiency and emissions from SVO, biodiesel, and petroleum diesel using vegetable oil from four locally produced oilseed species. This research uses oils produced in Colorado as a full diesel fuel substitute in a modified single cylinder engine. This engine testing was conducted in the laboratory. The test engine was a Yanmar TF140E, which is naturally aspirated and uses low-pressure (∼140 bar) mechanical direct injection. The engine fuel system was modified to accommodate a 2-tank custom SVO kit. The SVO was heated to 75˚C. Fuel economy and emissions measurements were performed for petroleum diesel, four different vegetable oils (sunflower, canola, camelina, and soybean) and their biodiesel derivatives. Fuel mass flow, oxides of nitrogen (NOx), total hydrocarbons (THC), carbon monoxide (CO), and particulate matter were measured. Overall engine emissions for SVO and biodiesel, with the exception of THC for biodiesel, were higher than petroleum diesel. More favorable biofuel emissions comparisons to diesel are expected with other engine designs based on data from various literature sources. Data comparing raw and refined SVO indicate that refined vegetable oil produces lower Particulate Matter (PM) emissions. General trends were observed showing that oils with higher levels of polyunsaturated fats (e.g. C18:1, C18:2, and C18:3) produce higher levels of NOx and THC's.

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supporting

confidence: 81%

Performance of a Direct Injection of IC Engine on SVO and Biodiesel from Multiple Feedstocks

Nettles-Anderson¹,

Olsen²,

Johnson³

et al. 2014

JPEE

View full text Add to dashboard Cite

show abstract

“…As shown in Fig. 12, a comparison between the data of Nishi [21] and Hemmerlein [3] suggests that injection method has a significant impact on emissions. A comparison of DI and IDI with rapeseed oil is more valid than a similar comparison between different studies with soybean oil because the polyunsaturated lipid acid composition for rapeseed varies by only 14% compared to 47% for soybean oil ( Table 2).…”

Section: Emissionsmentioning

confidence: 97%

Survey of Straight Vegetable Oil Composition Impact on Combustion Properties

Nettles-Anderson¹,

Olsen²

2009

SAE Technical Paper Series

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The Engineering Meetings Board has approved this paper for publication. It has successfully completed SAE's peer review process under the supervision of the session organizer. This process requires a minimum of three (3) reviews by industry experts. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. ISSN 0148-7191 Positions and opinions advanced in this paper are those of the author(s) and not necessarily those of SAE. The author is solely responsible for the content of the paper. SAE ABSTRACTThe combustion of straight vegetable oil (SVO) in internal combustion engines has shown conflicting results in emissions, power, and engine longevity. Many early studies suggested that SVO should not be considered for long term use in diesel engines. However, waste vegetable oil has been fueling adapted vehicles in progressive communities for years. The issues involved in the combustion of SVO or pure plant oils are complex. Engine injection systems, oil type, lipid acid ratio, and fuel temperature all have significant impact on the engine performance and emissions. A review of published studies of SVO combustion with a focus on known SVO composition and chemical structure reveals trends which merit further study. Future engine tests with known vegetable oil profiles will add significantly to the progression of SVO use in engines.

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“…Within the framework of the present study, we investigated the macro-and microscopic characteristics (nature, size, morphology) of PM deposited in three DPFs operating with engines partly using rapeseed methyl ester (RME), a commonly used biofuel (e.g. [4]). The three DPFs operated with the following fuel components: (a) 100% RME (referred to as RME100), (b) a 20% RME -80% diesel fuel blend (referred to as RME20) and (c) 100% diesel fuel (referred to as RME0).…”

Section: Introductionmentioning

confidence: 99%

Comparative Studies of Particles Deposited in Diesel Particulate Filters Operating with Biofuel, Diesel Fuel and Fuel Blends

Liati¹,

Eggenschwiler²,

Czerwiński³

et al. 2011

SAE Technical Paper Series

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Macroscopic studies and scanning electron microscope (SEM), as well as transmission electron microscope (TEM) research were carried out to investigate the nature and properties of particulate matter (PM) deposited in three diesel particulate filters (DPFs) operating with different fuels: 100% rapeseed methyl ester (RME100), a blend of 20% RME and 80% diesel (RME20), as well as 100% diesel (RME0). The DPFs were catalytically coated with V 2 O 5 /TiO 2. The PM deposits were either extracted from sectioned DPFs or studied 'in situ', as deposited. In the RME100-DPF, the lowest soot and highest ash depositions are found. The higher amount of ash in RME100-DPF, as well as the higher participation of the element Ca in the ash from this filter, indicate that in addition to lubricating oil, the RME fuel contributes also to ash formation. Ash is found accumulating in the plugged inlet channels only in RME100 and as a few tens of µm-thick layer on the channel walls of all three filters. Most commonly, ash is mixed with fibres deriving from the gasket on the DPF inlet surface, fibres from the intumescing mat around the DPF and the diesel oxidation catalyst (DOC) upstream the DPF, as well as with newly formed V-O long-prismatic nanocrystals originating from the catalytic coating layer. SEM images reveal the presence of a 130-170 µm thick soot cake on the filter walls of RME20-and RME0-DPF. In RME100-DPF, the soot cake is thinner (ca. 100 µm) and is not any more attached on the channel walls but rather occurs as fragments within the filter channels. EDX analyses of the layer deposited on the channel walls underneath the soot reveal the following elements: Ca, P, Zn, Mg, S, Na (typical ash elements), V, Ti, W (deriving from the catalytic coating) and Fe, Cu from engine wear. The size distribution of individual soot particles in the soot aggregates (average diameter: 21 nm), together with the nanostructure of soot particles obtained by high resolution transmission electron microscopy (HRTEM) indicate that the RME100 soot is relatively more reactive compared to diesel soot.

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Potential of Rapeseed Oil as Diesel Engine Fuel

Cited by 9 publications

References 9 publications

Performance of a Direct Injection of IC Engine on SVO and Biodiesel from Multiple Feedstocks

Performance of a Direct Injection of IC Engine on SVO and Biodiesel from Multiple Feedstocks

Survey of Straight Vegetable Oil Composition Impact on Combustion Properties

Comparative Studies of Particles Deposited in Diesel Particulate Filters Operating with Biofuel, Diesel Fuel and Fuel Blends

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