A rapid engine test to measure injector fouling in diesel engines using vegetable oil fuels

Korus, Roger A.; Jo, J.-D.; Peterson, C. L.

doi:10.1007/bf02541685

Cited by 62 publications

(20 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some investigators have attempted to visually rate the outside of the injector tip as a measure of deposits [17,18,19,20]. Table 2 contains photographs of the exteriors of the nozzles after the tests from the present study, arranged in order of increasing change in IMEP.…”

Section: Visual Comparison Of Nozzle Exteriorsmentioning

confidence: 99%

Investigations on Deposit Formation in the Holes of Diesel Injector Nozzles

Birgel¹,

Ladommatos²,

Aleiferis³

et al. 2011

SAE Int. J. Fuels Lubr.

View full text Add to dashboard Cite

Current developments in fuels and emissions regulations are resulting in an increasingly severe operating environment for diesel fuel injection systems. The formation of deposits within the holes or on the outside of the injector nozzle can affect the overall system performance. The rate of deposit formation is affected by a number of parameters, including operating conditions and fuel composition. For the work reported here an accelerated test procedure was developed to evaluate the relative importance of some of these parameters in a high pressure common rail fuel injection system. The resulting methodology produced measurable deposits in a custom made injector nozzle on a single cylinder engine. The results indicate that fuels containing 30%v/v and 100% Fatty Acid Methyl Ester (FAME), that does not meet EN 14214 produced more deposit than an EN590 petroleum diesel fuel. Overall, the addition of zinc to the fuel had the biggest effect on deposit formation and resulted in a 12.2% decrease in Indicated Mean Effective Pressure (IMEP). The effects of zinc were unexpectedly reduced when it was added to fuel containing 30%v/v biodiesel. Reducing the common-rail pressure with 30%v/v biodiesel (no added zinc) increased the loss in IMEP. Raising the air and fuel temperatures by 40°C and 30°C respectively showed no bigger loss in IMEP. The results indicate that deposit formation may continue after engine shut down.

show abstract

Section: Visual Comparison Of Nozzle Exteriorsmentioning

confidence: 99%

Investigations on Deposit Formation in the Holes of Diesel Injector Nozzles

Birgel¹,

Ladommatos²,

Aleiferis³

et al. 2011

SAE Int. J. Fuels Lubr.

View full text Add to dashboard Cite

show abstract

“…The buildup on injectors results in improper mixture of the fuel and air. When the injectors improperly spray fuel into the cylinder, the SVO hits the cylinder walls, improperly combusts and polymerizes [2]. The unburned fuel buildup can also infiltrate the engine lubrication oil, potentially leading to the engine seizing.…”

Section: Svo Challengesmentioning

confidence: 99%

Survey of Straight Vegetable Oil Composition Impact on Combustion Properties

Nettles-Anderson¹,

Olsen²

2009

SAE Technical Paper Series

View full text Add to dashboard Cite

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.

show abstract

“…The paper by Sem [1] gives a visual comparison of injectors run on pure biodiesel (rapeseed methyl ester (RME) and soybean methyl ester (SME)) and diesel, to show that running on biodiesel creates a larger amount of deposits on the outer surface of injector nozzles, see Figure 1. Optical investigation of the amount of the deposits on injector nozzles is described in papers [18,19]. In these papers the injectors were photographed and the visible amount of deposits was calculated.…”

Section: Test Cycles and Optical Investigationsmentioning

confidence: 99%

“…In these papers the injectors were photographed and the visible amount of deposits was calculated. Fuels were D2 diesel, different safflower oils, and blends of these [19] as well as oxygenated diesel [18]. However these papers do not investigate any influences on the creation of deposits.…”

Section: Test Cycles and Optical Investigationsmentioning

confidence: 99%

Deposit Formation in the Holes of Diesel Injector Nozzles: A Critical Review

Birgel¹,

Ladommatos²,

Aleiferis³

et al. 2008

SAE Technical Paper Series

View full text Add to dashboard Cite

Current developments in fuels and emissions regulations are resulting in increasingly severe operating environment for the injection system. Formation of deposits within the holes of the injector nozzle or on the outside of the injector tip may have an adverse effect on overall system performance. This paper provides a critical review of the current understanding of the main factors affecting deposit formation.Two main types of engine test cycles, which attempt to simulate field conditions, are described in the literature. The first type involves cycling between high and low load. The second involves steady state operation at constant speed either at medium or high load.

show abstract

A rapid engine test to measure injector fouling in diesel engines using vegetable oil fuels

Cited by 62 publications

References 6 publications

Investigations on Deposit Formation in the Holes of Diesel Injector Nozzles

Investigations on Deposit Formation in the Holes of Diesel Injector Nozzles

Survey of Straight Vegetable Oil Composition Impact on Combustion Properties

Deposit Formation in the Holes of Diesel Injector Nozzles: A Critical Review

Contact Info

Product

Resources

About