Analysis of Blended Fuel Properties and Engine Cyclic Variations with Ethanol Additive

The challenge of addressing increasing energy demand due to modern social development requirements, together with the crises of mineral oil depletion, make renewable energy sources promising alternatives for energy production. Currently, diesel fuel is mainly used in the industrial and transportatio...

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Main Authors:	Obed M., Ali, R., Mamat, Nik Rosli, Abdullah, Abdul Adam, Abdullah
Format:	Article
Language:	English
Published:	American Scientific Publishers 2015
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/9485/ http://umpir.ump.edu.my/id/eprint/9485/ http://umpir.ump.edu.my/id/eprint/9485/ http://umpir.ump.edu.my/id/eprint/9485/1/fkm-2015-obed-Analysis%20of%20Blended%20Fuel%20Properties.pdf

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recordtype	eprints
spelling	ump-94852018-01-30T05:57:52Z http://umpir.ump.edu.my/id/eprint/9485/ Analysis of Blended Fuel Properties and Engine Cyclic Variations with Ethanol Additive Obed M., Ali R., Mamat Nik Rosli, Abdullah Abdul Adam, Abdullah TJ Mechanical engineering and machinery The challenge of addressing increasing energy demand due to modern social development requirements, together with the crises of mineral oil depletion, make renewable energy sources promising alternatives for energy production. Currently, diesel fuel is mainly used in the industrial and transportation sectors. Though blended biodiesel-diesel fuel can replace diesel satisfactorily at low blending ratios up to 20%, fuel property problems may persist and worsen at high blending ratios. Hence, the feasibility of the blended biodiesel-diesel fuel B30 was investigated in the present study with respect to its property and engine cyclic variations when using ethanol as an additive. The blended fuel and ethanol additive were tested experimentally in a diesel engine. The in-cylinder pressure data were collected and analysed using the coefficient of variation and wavelet power spectrum. The fuel property test results showed slight improvement in density and acid value with a significant reduction in viscosity when increasing the ethanol additive. Furthermore, the blended fuel pour point was reduced to –7 °C at 8% ethanol additive. However, the fuel energy content was slightly affected with increasing ethanol additive ratio in the blend. From the wavelet analysis results, the short-period oscillations appear intermittently in blended fuel, while the long and intermediate-term periodicities tend to appear with increasing additive ratio in the blend. Furthermore, the spectral power increased with an increase in the additive ratio, indicating that the additive has a noticeable effect on increasing the engine cycle to cycle variations. This behaviour validates the coefficient of variation of the indicated mean effective pressure time series, which reveals that the blended fuel B30 has the lowest engine cyclic variations. However, the engine cycle variation increases with increasing additive ratio and become comparable to that of diesel fuel up to 4% ethanol additive. American Scientific Publishers 2015 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/9485/1/fkm-2015-obed-Analysis%20of%20Blended%20Fuel%20Properties.pdf Obed M., Ali and R., Mamat and Nik Rosli, Abdullah and Abdul Adam, Abdullah (2015) Analysis of Blended Fuel Properties and Engine Cyclic Variations with Ethanol Additive. Journal of Biobased Materials and Bioenergy, 9 (2). pp. 108-114. ISSN 1556-6560 http://dx.doi.org/10.1166/jbmb.2015.1505 DOI: 10.1166/jbmb.2015.1505
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Obed M., Ali R., Mamat Nik Rosli, Abdullah Abdul Adam, Abdullah Analysis of Blended Fuel Properties and Engine Cyclic Variations with Ethanol Additive
description	The challenge of addressing increasing energy demand due to modern social development requirements, together with the crises of mineral oil depletion, make renewable energy sources promising alternatives for energy production. Currently, diesel fuel is mainly used in the industrial and transportation sectors. Though blended biodiesel-diesel fuel can replace diesel satisfactorily at low blending ratios up to 20%, fuel property problems may persist and worsen at high blending ratios. Hence, the feasibility of the blended biodiesel-diesel fuel B30 was investigated in the present study with respect to its property and engine cyclic variations when using ethanol as an additive. The blended fuel and ethanol additive were tested experimentally in a diesel engine. The in-cylinder pressure data were collected and analysed using the coefficient of variation and wavelet power spectrum. The fuel property test results showed slight improvement in density and acid value with a significant reduction in viscosity when increasing the ethanol additive. Furthermore, the blended fuel pour point was reduced to –7 °C at 8% ethanol additive. However, the fuel energy content was slightly affected with increasing ethanol additive ratio in the blend. From the wavelet analysis results, the short-period oscillations appear intermittently in blended fuel, while the long and intermediate-term periodicities tend to appear with increasing additive ratio in the blend. Furthermore, the spectral power increased with an increase in the additive ratio, indicating that the additive has a noticeable effect on increasing the engine cycle to cycle variations. This behaviour validates the coefficient of variation of the indicated mean effective pressure time series, which reveals that the blended fuel B30 has the lowest engine cyclic variations. However, the engine cycle variation increases with increasing additive ratio and become comparable to that of diesel fuel up to 4% ethanol additive.
format	Article
author	Obed M., Ali R., Mamat Nik Rosli, Abdullah Abdul Adam, Abdullah
author_facet	Obed M., Ali R., Mamat Nik Rosli, Abdullah Abdul Adam, Abdullah
author_sort	Obed M., Ali
title	Analysis of Blended Fuel Properties and Engine Cyclic Variations with Ethanol Additive
title_short	Analysis of Blended Fuel Properties and Engine Cyclic Variations with Ethanol Additive
title_full	Analysis of Blended Fuel Properties and Engine Cyclic Variations with Ethanol Additive
title_fullStr	Analysis of Blended Fuel Properties and Engine Cyclic Variations with Ethanol Additive
title_full_unstemmed	Analysis of Blended Fuel Properties and Engine Cyclic Variations with Ethanol Additive
title_sort	analysis of blended fuel properties and engine cyclic variations with ethanol additive
publisher	American Scientific Publishers
publishDate	2015
url	http://umpir.ump.edu.my/id/eprint/9485/ http://umpir.ump.edu.my/id/eprint/9485/ http://umpir.ump.edu.my/id/eprint/9485/ http://umpir.ump.edu.my/id/eprint/9485/1/fkm-2015-obed-Analysis%20of%20Blended%20Fuel%20Properties.pdf
first_indexed	2023-09-18T22:08:07Z
last_indexed	2023-09-18T22:08:07Z
_version_	1777414845019193344

Analysis of Blended Fuel Properties and Engine Cyclic Variations with Ethanol Additive

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