Investigation of Influences of Secondary butyl-alcohol Blends on Performance and Cycle-To-Cycle Variations in a Spark Ignition Engines

Investigation of Influences of Secondary butyl-alcohol Blends on Performance and Cycle-To-Cycle Variations in a Spark Ignition Engines

Depletion of fossilised fuels coupled with stringent energy security has directed automotive researches to continuously investigate the use of alternative fuels in internal combustion engines. Within this subject, the research presented in this work is focused on using butanol as gasoline fuels subs...

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Main Authors: I. M., Yusri, R., Mamat, Azmi, W. H., Awad, Omar I., Mohd Hafizil, Mat Yasin, Ahmad Fitri, Yusop
Format: Article
Language:English
Published: Elsevier Ltd 2017
Subjects:
TJ Mechanical engineering and machinery
Online Access:http://umpir.ump.edu.my/id/eprint/17898/
http://umpir.ump.edu.my/id/eprint/17898/
http://umpir.ump.edu.my/id/eprint/17898/
http://umpir.ump.edu.my/id/eprint/17898/1/fkm-2017-fitri-%20Investigation%20of%20Influences%20of%20Secondary.pdf
id ump-17898
recordtype eprints
spelling ump-178982019-10-03T08:18:21Z http://umpir.ump.edu.my/id/eprint/17898/ Investigation of Influences of Secondary butyl-alcohol Blends on Performance and Cycle-To-Cycle Variations in a Spark Ignition Engines I. M., Yusri R., Mamat Azmi, W. H. Awad, Omar I. Mohd Hafizil, Mat Yasin Ahmad Fitri, Yusop TJ Mechanical engineering and machinery Depletion of fossilised fuels coupled with stringent energy security has directed automotive researches to continuously investigate the use of alternative fuels in internal combustion engines. Within this subject, the research presented in this work is focused on using butanol as gasoline fuels substitution in a spark ignition engines. The present study reveals the combustion analysis specifically on cycle-to-cycle variations in spark ignition engines and performance characteristics of secondary butyl alcohol (sec-butanol) – gasoline blends at 5%, 10% and 15% by volume of sec-butanol in gasoline fuels. The engine performance characteristics was evaluated at 1000 to 4000 RPM with 50% of wide open throttle positions, while the in-cylinder pressure data were collected over 200 consecutive engine cycles for engine test at 3500 RPM. The indicated mean effective pressure time series is analyzed using the coefficient of variations and the wavelet analysis method. Comparative analysis of the performance characteristics showed that 2-butanol–gasoline blended fuel produced less brake power and brake mean effective pressure by 12.3%, 9.2% and 4.3%, for GBu5, GBu10 and GBu15, respectively, with regard to G100. From the wavelet power spectrum, it is observed that the long-term periodicities appear in gasoline fuels, while the short period oscillations become intermittently visible in blended fuels. Reduction of coefficient of variations occur as the additive of sec-butanol ratios increased, which agrees with the wavelet analysis results. Furthermore, the spectral power reduced with an increase in the additive ratio, indicating that the additive has a noticeable influence on reducing the cycle-to-cycle variations. Elsevier Ltd 2017 Article PeerReviewed application/pdf en cc_by_nc_nd http://umpir.ump.edu.my/id/eprint/17898/1/fkm-2017-fitri-%20Investigation%20of%20Influences%20of%20Secondary.pdf I. M., Yusri and R., Mamat and Azmi, W. H. and Awad, Omar I. and Mohd Hafizil, Mat Yasin and Ahmad Fitri, Yusop (2017) Investigation of Influences of Secondary butyl-alcohol Blends on Performance and Cycle-To-Cycle Variations in a Spark Ignition Engines. Energy Procedia, 110. pp. 310-315. ISSN 1876-6102 https://doi.org/10.1016/j.egypro.2017.03.145 doi: 10.1016/j.egypro.2017.03.145
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
I. M., Yusri
R., Mamat
Azmi, W. H.
Awad, Omar I.
Mohd Hafizil, Mat Yasin
Ahmad Fitri, Yusop
Investigation of Influences of Secondary butyl-alcohol Blends on Performance and Cycle-To-Cycle Variations in a Spark Ignition Engines
description Depletion of fossilised fuels coupled with stringent energy security has directed automotive researches to continuously investigate the use of alternative fuels in internal combustion engines. Within this subject, the research presented in this work is focused on using butanol as gasoline fuels substitution in a spark ignition engines. The present study reveals the combustion analysis specifically on cycle-to-cycle variations in spark ignition engines and performance characteristics of secondary butyl alcohol (sec-butanol) – gasoline blends at 5%, 10% and 15% by volume of sec-butanol in gasoline fuels. The engine performance characteristics was evaluated at 1000 to 4000 RPM with 50% of wide open throttle positions, while the in-cylinder pressure data were collected over 200 consecutive engine cycles for engine test at 3500 RPM. The indicated mean effective pressure time series is analyzed using the coefficient of variations and the wavelet analysis method. Comparative analysis of the performance characteristics showed that 2-butanol–gasoline blended fuel produced less brake power and brake mean effective pressure by 12.3%, 9.2% and 4.3%, for GBu5, GBu10 and GBu15, respectively, with regard to G100. From the wavelet power spectrum, it is observed that the long-term periodicities appear in gasoline fuels, while the short period oscillations become intermittently visible in blended fuels. Reduction of coefficient of variations occur as the additive of sec-butanol ratios increased, which agrees with the wavelet analysis results. Furthermore, the spectral power reduced with an increase in the additive ratio, indicating that the additive has a noticeable influence on reducing the cycle-to-cycle variations.
format Article
author I. M., Yusri
R., Mamat
Azmi, W. H.
Awad, Omar I.
Mohd Hafizil, Mat Yasin
Ahmad Fitri, Yusop
author_facet I. M., Yusri
R., Mamat
Azmi, W. H.
Awad, Omar I.
Mohd Hafizil, Mat Yasin
Ahmad Fitri, Yusop
author_sort I. M., Yusri
title Investigation of Influences of Secondary butyl-alcohol Blends on Performance and Cycle-To-Cycle Variations in a Spark Ignition Engines
title_short Investigation of Influences of Secondary butyl-alcohol Blends on Performance and Cycle-To-Cycle Variations in a Spark Ignition Engines
title_full Investigation of Influences of Secondary butyl-alcohol Blends on Performance and Cycle-To-Cycle Variations in a Spark Ignition Engines
title_fullStr Investigation of Influences of Secondary butyl-alcohol Blends on Performance and Cycle-To-Cycle Variations in a Spark Ignition Engines
title_full_unstemmed Investigation of Influences of Secondary butyl-alcohol Blends on Performance and Cycle-To-Cycle Variations in a Spark Ignition Engines
title_sort investigation of influences of secondary butyl-alcohol blends on performance and cycle-to-cycle variations in a spark ignition engines
publisher Elsevier Ltd
publishDate 2017
url http://umpir.ump.edu.my/id/eprint/17898/
http://umpir.ump.edu.my/id/eprint/17898/
http://umpir.ump.edu.my/id/eprint/17898/
http://umpir.ump.edu.my/id/eprint/17898/1/fkm-2017-fitri-%20Investigation%20of%20Influences%20of%20Secondary.pdf
first_indexed 2023-09-18T22:25:00Z
last_indexed 2023-09-18T22:25:00Z
_version_ 1777415907605217280

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