000 05012ntm a2200349 i 4500
001 vtls000104312
003 KUKTEM
005 20251117113410.0
008 180716s2018 my da f am 000 0 eng d
020 _aTHE0005224(Local)
039 9 _a201905141458
_bhanafiah
_c201904251603
_dhuda
_y201807161146
_zsaini
040 _aUMP
_beng
_cUMP
_erda
090 _aFKM .A93 2018 r Thesis
100 1 _aAwad, Omar Ibraheem,
_eauthor.
245 1 4 _aThe effects of fusel oil water content reduction on performance and emissions of SI engine with fusel oil – gasoline blended fuel /
_cOmar Ibraheem Awad
264 1 _aKuantan, Pahang :
_bUMP,
_c2018
300 _axvi, 194 pages :
_billustrations (some color), chart ;
_c30 cm. +
_e1 CD-ROM
336 _atext
_2rdacontent
337 _aunmediated
_2rdamedia
337 _acomputer
_2rdamedia
338 _avolume
_2rdacarrier
338 _acomputer disc
_2rdacarrier
347 _atext file
_bPDF
_2rda
500 _aFaculty of Mechanical Engineering
502 _aThesis (Doctor of Philosophy of Mechanical Engineering) -- Universiti Malaysia Pahang – 2018
504 _aIncludes bibliographical references
520 3 _aEnergy security and global warming concerns are the two main driving forces for the global alcohol development that also has the effort to animate the agro-industry. Generally, alcohol fuels are produced from several sources and have less heating value then fossil fuel. Fusel oil is a by-product obtained through the fermentation of some agricultural products such as beets, cones, grains, potatoes, sweet potatoes, rice and wheat. The high research octane number and motor octane number (RON 106 and MON 103), high oxygen content (30.23% wt) and single boiling point of fusel oil indicated it can be used as a fuel in SI engines. On the other hand, the higher water content of fusel oil (around 10-20%) led to a lower heating value by 31% compared to gasoline. Also, the higher water content of fusel oil effect negatively on the combustion duration, thereby engine performance and emission are affected. Comprehensive analyses of the fusel oil properties, performance and emissions have been performed. The data of fusel oil-gasoline properties were analyzed statistically in different ways to indicate the effects of fusel oil before and after water content extraction on the test fuels properties. The experimental conducted with direct injection SI engine run with fusel oil-gasoline blends and pure gasoline as the baseline fuel at different open throttle valve positions (% of WOT) as engine loads and engine speeds (rpm). Response surface methodology (RSM) based multi-objective optimization was applied in this work to determine the optimal blend ratio of fusel oil –gasoline before and after water extraction (FBWE10, FBWE20, FAWE10, and FAWE20) on the performance and emissions. The heating value and carbon content of fusel oil improved significantly after extracting the water content by 13% and 7%, respectively, while the oxygen content reduced. According to the statistical analysis of test fuel properties results (fusel oil-gasoline blends), the heating value, oxygen, and carbon content have statistically significant effects on the test fuels as the fraction of fusel oil increased especially after water content extraction. The engine power has improved with the extraction of water content and the highest brake power is registered with FAWE10 under rich fuel (λ<1). The lowest brake specific fuel consumption (BSFC) is reported to be 275 g/kW.h with gasoline while the highest BSFC is with FBWE10 which is reported to be 285 g/kW.h. Furthermore, the BSFC has decreased on average by 6.8% and 1.7% with FAWE10 and FAWE20, compared to FBWE 10 and FAWE20 respectively. The water content of fusel oil led to the limitation of the engine combustion thereby the NOx emission reduced. The blended fuel has insignificant effects on brake power while the highest impact of blended fuel was on BTE and BSFC responses. The extracted water content from fusel oil (FAWE10 and FAWE20) has a statistical significance in order to increase the brake thermal efficiency (BTE), NOx emission and decrease the brake specific fuel consumption (BSFC) and HC emissions while having insignificant effects on brake power. Thus, the best solution was with 20% of fusel oil after water extraction (FAWE20) at higher load and engine speed. Finally, the validation of the results showed a good agreement with the experimental data and the maximum percentage of error which is less than 5%.The findings from this study will make significant contributions to the future applications of fusel fuel in an internal combustion engine by improving the heating value.
610 2 0 _aFaculty of Mechanical Engineering
_xDissertations
650 0 _aUniversities and colleges
_xDisertations
650 0 _aTheses
999 _aVIRTUA40
_c7986
_d7992
999 _aVTLSSORT0080*0200*0400*0900*1000*2450*2640*3000*3360*3370*3371*3380*3381*3470*5000*5020*5040*5200*6100*6500*6501*9992