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Impact of biodiesel on injector deposit formation

Reducing exhaust emissions from CI engines through continued legislative pressure has resulted in the development of advanced fuel injection equipment. This advanced injection system produces higher temperature and pressure at the injector tip which initiates deposit formation at and around the in...

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Main Authors: Liaquat, A.M., Masjuki, Haji Hassan, Kalam, M.A., Varman, M.
Format: Conference or Workshop Item
Language:English
Published: 2012
Subjects:
TJ Mechanical engineering and machinery
TL Motor vehicles. Aeronautics. Astronautics
Online Access:http://eprints.um.edu.my/9629/1/Hanoi_M_Varman_2012.pdf
http://eprints.um.edu.my/9629/
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spelling my.um.eprints.96292018-10-18T01:16:58Z http://eprints.um.edu.my/9629/ Impact of biodiesel on injector deposit formation Liaquat, A.M. Masjuki, Haji Hassan Kalam, M.A. Varman, M. TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics Reducing exhaust emissions from CI engines through continued legislative pressure has resulted in the development of advanced fuel injection equipment. This advanced injection system produces higher temperature and pressure at the injector tip which initiates deposit formation at and around the injector. However, in the short term operation, there are many acceptable studies showing good performance results for engines operating with biofuels in literature. In more extended operations, some of the same fuels can cause degradation of engine performance, excessive carbon deposits and actual damage to the engine. In this research work, the endurance test was carried out for 250 h on 2 fuel samples; DF (diesel fuel) as baseline fuel and JB20 (20% Jatropha biodiesel and 80% DF) in a single cylinder CI engine to investigate the effects of JB20 on the injector nozzle deposits and engine lubricating oil. According to the results of the investigations, visual inspection shows that some deposit accumulation appeared on liners of injectors for both fuel samples (DF and JB20). However using Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray spectroscopy (EDX), greater carbon deposits at and around the injector tip were observed in case of JB20. Moreover, the lubricating oil analysis showed excessive wear metal concentrations for JB20 when compared to the engine running with diesel fuel. Viscosity decreased very soon to values below the minimum recommended due to dilution with both fuel samples, but especially more with JB20. 2012-09-26 Conference or Workshop Item PeerReviewed application/pdf en http://eprints.um.edu.my/9629/1/Hanoi_M_Varman_2012.pdf Liaquat, A.M. and Masjuki, Haji Hassan and Kalam, M.A. and Varman, M. (2012) Impact of biodiesel on injector deposit formation. In: 5th Regional Conference on New and Renewable Energy (RCNRE 2012), 26-27 September 2012, Hanoi, Vietnam.
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
language English
topic TJ Mechanical engineering and machinery
TL Motor vehicles. Aeronautics. Astronautics
spellingShingle TJ Mechanical engineering and machinery
TL Motor vehicles. Aeronautics. Astronautics
Liaquat, A.M.
Masjuki, Haji Hassan
Kalam, M.A.
Varman, M.
Impact of biodiesel on injector deposit formation
description Reducing exhaust emissions from CI engines through continued legislative pressure has resulted in the development of advanced fuel injection equipment. This advanced injection system produces higher temperature and pressure at the injector tip which initiates deposit formation at and around the injector. However, in the short term operation, there are many acceptable studies showing good performance results for engines operating with biofuels in literature. In more extended operations, some of the same fuels can cause degradation of engine performance, excessive carbon deposits and actual damage to the engine. In this research work, the endurance test was carried out for 250 h on 2 fuel samples; DF (diesel fuel) as baseline fuel and JB20 (20% Jatropha biodiesel and 80% DF) in a single cylinder CI engine to investigate the effects of JB20 on the injector nozzle deposits and engine lubricating oil. According to the results of the investigations, visual inspection shows that some deposit accumulation appeared on liners of injectors for both fuel samples (DF and JB20). However using Scanning Electron Microscopy (SEM) and Energy Dispersive X-ray spectroscopy (EDX), greater carbon deposits at and around the injector tip were observed in case of JB20. Moreover, the lubricating oil analysis showed excessive wear metal concentrations for JB20 when compared to the engine running with diesel fuel. Viscosity decreased very soon to values below the minimum recommended due to dilution with both fuel samples, but especially more with JB20.
format Conference or Workshop Item
author Liaquat, A.M.
Masjuki, Haji Hassan
Kalam, M.A.
Varman, M.
author_facet Liaquat, A.M.
Masjuki, Haji Hassan
Kalam, M.A.
Varman, M.
author_sort Liaquat, A.M.
title Impact of biodiesel on injector deposit formation
title_short Impact of biodiesel on injector deposit formation
title_full Impact of biodiesel on injector deposit formation
title_fullStr Impact of biodiesel on injector deposit formation
title_full_unstemmed Impact of biodiesel on injector deposit formation
title_sort impact of biodiesel on injector deposit formation
publishDate 2012
url http://eprints.um.edu.my/9629/1/Hanoi_M_Varman_2012.pdf
http://eprints.um.edu.my/9629/
_version_ 1643688613895995392
score 13.211869

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