The Experts below are selected from a list of 324 Experts worldwide ranked by ideXlab platform
Rizalman Mamat - One of the best experts on this subject based on the ideXlab platform.
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Impact of Fusel Oil moisture reduction on the fuel properties and combustion characteristics of SI engine fueled with gasoline-Fusel Oil blends
Renewable Energy, 2018Co-Authors: Omar Ibraheem Awad, Obed M. Ali, Ali Thaeer Hammid, Rizalman MamatAbstract:Abstract In this study, statistical analysis was used to reveal the significant relation between fuel properties and the reduction of moisture contents at a various fraction of Fusel Oil in the blend. In addition to this, it is also aimed to conduct a comparative study on the effect of the fuel properties on the combustion characteristics before and after moisture extraction from Fusel Oil. The moisture content of Fusel Oil was extracted by employing rotary extractor method, and the fuels were tested in an SI engine under different open throttle valve position (load) and 4500 rpm speed of the engine. As a result, the heating value and carbon content improved significantly after extracting the moisture content from Fusel Oil by 13% and 7% respectively. According to the statistical analysis of test fuel properties results, the heating value, oxygen, and carbon content have statistically significant effects on the test fuels as the fraction of Fusel Oil increased especially after moisture extraction. Furthermore, the brake power and BSFC observed to be improved by extracting the moisture content with shorter combustion durations. Almost all Fusel Oil-gasoline blends have lower COV IMEP at all engine loads compared to pure gasoline.
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Effects of Fusel Oil water content reduction on fuel properties, performance and emissions of SI engine fueled with gasoline -Fusel Oil blends
Renewable Energy, 2018Co-Authors: Omar Ibraheem Awad, Rizalman Mamat, Thamir K. Ibrahim, Maurice Kettner, Kumaran Kadirgama, Abdul Mutalib Leman, A.i.m. SaifulAbstract:Abstract This study sets out to determine the effects of water reduction on the properties characteristic of Fusel Oil-gasoline blends, also to study the effects of this reduction on the performance and emissions of an SI engine. The experiments were performed on a SI engine under 4500 rpm speed, different open throttle valve position (% of WOT) as engine loads. As a result of the reduced water contentfrom 13.5% to 6.5%, the heating value and carbon content improved by 13% and 7.9% respectively. While the oxygen content reduced by 14%. The brake power was slightly increased than that of gasoline for most Fusel Oil–gasoline blends. Furthermore, it was observed that the Fusel Oil after water extraction (FAWE10 and FAWE20), the Fusel Oil had slightly higher power compared to the Fusel Oil before water extraction (FBWE10 and FBWE20). Moreover, brake-specific fuel consumption (BSFC) and brake thermal efficiency (BTE) improved by reducing the water content. The engine emissions were also slightly increased with the reduction of water content.
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By-Product Alcohol: Fusel Oil as an Alternative Fuel in Spark Ignition Engine
World Academy of Science Engineering and Technology International Journal of Transport and Vehicle Engineering, 2017Co-Authors: Omar I. Awad, Rizalman Mamat, M. M. Noor, F. Yusop, I.m. YusriAbstract:Fusel Oil is a by-product obtained through the fermentation of some agricultural products. The Fusel Oil properties are closer to other alternative combustible types and the limited number of studies on the use of Fusel Oil as an alcohol derivative in SI engines constitutes to the base of this study. This paper experimentally examined the impacts of a by-product of alcohol, which is Fusel Oil by blending it with gasoline, on engine performance, combustion characteristics, and emissions in a 4-cylinder SI engine. The test was achieved at different engine speeds and a 60 % throttle valve (load). As results, brake power, BTE, and BSFC of F10 are higher at all engine speeds. Maximum engine BTE was 33.9%, at the lowest BSFC with F10. Moreover, it is worth seeing that the F10 under rich air-fuel ratio has less variation of COVIMEP compared to the F20 and gasoline. F10 represents shorter combustion duration, thereby, the engine power increased. NOx emission for F10 at 4500 rpm was lower than gasoline. The highest value of HC emission is obtained with F10 compared to gasoline and F20 with an average increase of 11% over the engine speed range. CO and CO2 emissions increased when using Fusel Oil blends.
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Using Fusel Oil as a blend in gasoline to improve SI engine efficiencies: A comprehensive review
Renewable and Sustainable Energy Reviews, 2017Co-Authors: Omar Ibraheem Awad, Obed M. Ali, Rizalman Mamat, A.a. Abdullah, Gholamhassan Najafi, M.k. Kamarulzaman, I.m. Yusri, M. M. NoorAbstract:Alternative fuels are becoming important due to higher energy demands but with limited fuel supplies. 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. Fusel Oil can be used as a clean and high-efficiency spark ignition fuel with a reduced NOx. The energy value of Fusel Oil is near to other alternative combustible types and the limited number of researches on the use of Fusel Oil as an alcohol derivative in spark ignition engines constitute to the base of this research. The literature relevant to Fusel Oil use was reviewed and summarized to demonstrate the viability of Fusel Oil as an alternative fuel from renewable energy source. The aim of this paper was to review the potential for the utilization of Fusel Oil as a candidate for an alternative fuel for spark-ignition engine, while also describing the production and utilization of Fusel Oil generally. The octane number and density of Fusel Oil present the most important properties that make Fusel Oil a candidate for an alternative fuel for SI fuel engines. It was observed that the octane number increased with the increase in percentage of Fusel Oil in the blend tests. It was also noted that when the Fusel Oil was used as a blend with gasoline, the engine torque was slightly increased and the volumetric efficiency and specific fuel consumption also increased. The hydro-carbon (HC) and carbon monoxide (CO) emissions were averagely increased. Furthermore, knocking and nitrogen oxides (NOx) were observed to decrease when Fusel Oil was used. On the other hand, negative effects occurred in the engine performance caused by the higher water content in Fusel Oil.
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Performance and Combustion Characteristics of an SI Engine Fueled With Fusel Oil-Gasoline at Different Water Content
Applied Thermal Engineering, 2017Co-Authors: Omar I. Awad, Obed M. Ali, Rizalman Mamat, Thamir K. Ibrahim, Kumaran Kadirgama, Abdul Mutalib LemanAbstract:The main objective of the current study is to investigate the impacts of Fusel Oil-gasoline blends with different water content on performance and combustion characteristics of an SI engine. The water content of Fusel Oil is reduced by employing rotary extractor method. The parameters examined in the current study are the effects of test fuels upon engine performance criteria, fuel combustion, location of CA50 and coefficient of variation of indicated mean effective pressure (COVIMEP). The experiments are conducted in a SI engine with two blending ratio of gasoline-Fusel Oil (FBWE10 and FAWE10) in addition to pure gasoline as a standard fuel under different engine speeds and constant 45% of WOT engine load. The study results reveal that engine power, torque, and brake thermal efficiency have slightly improved with Fusel Oil-gasoline blends that were obvious clearly after reduction of water content. On the other hand, though the brake specific fuel consumption of FAWE10 slightly improve compared to FBWE10 but still higher than gasoline. Furthermore, the peak in-cylinder pressure, rate of heat release, and rate of pressure rise enhanced with Fusel Oil-gasoline blends. The (CA 0–10) and (CA 10–90) duration could be simultaneously decreased by reducing the water content of Fusel Oil, all of that are helpful to improve the stability of combustion and thought to be reasons for the reduction in COVIMEP. As a conclusion, the reduction of Fusel Oil water content has played positively to enhance the combustion and performance characteristics of the fuel blend and result in more stable engine operation.
Sanjay M. Mahajani - One of the best experts on this subject based on the ideXlab platform.
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esterification of Fusel Oil using reactive distillation part i reaction kinetics
Chemical Engineering Journal, 2012Co-Authors: Prafull Patidar, Sanjay M. MahajaniAbstract:Abstract Fusel Oil is a mixture of C2–C5 alcohols such as ethanol, n -propanol, iso -butanol and iso -amyl alcohol. It is expected that reactive distillation (RD), which is a proven intensification strategy for esterification of individual alcohols can also be a promising option for simultaneous esterification of all the alcohols in Fusel Oil. To evaluate its feasibility and design a unit on large scale, kinetic and phase equilibrium models are necessary. In this work, we experimentally investigate reaction kinetics for all the esterification and trans- esterification reactions of the different constituents of Fusel Oil with acetic acid. The reactions are performed in the presence of cation exchange resin, Amberlyst-15, in a batch reactor over a wide range of parameters such as temperature, mole ratio and catalyst loading. A unified Langmuir–Hinshelwood–Hougen–Watson (LHHW) model is proposed for the reacting system consisting of all the alcohols and the experimental data is used to estimate the model parameters. The predictions are in line with the experimental data for individual alcohols as well as their mixtures. A feasible process based on reactive distillation is simulated in ASPEN PLUS using the kinetics developed in this work.
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Esterification of Fusel Oil using reactive distillation – Part I: Reaction kinetics
Chemical Engineering Journal, 2012Co-Authors: Prafull Patidar, Sanjay M. MahajaniAbstract:Abstract Fusel Oil is a mixture of C2–C5 alcohols such as ethanol, n -propanol, iso -butanol and iso -amyl alcohol. It is expected that reactive distillation (RD), which is a proven intensification strategy for esterification of individual alcohols can also be a promising option for simultaneous esterification of all the alcohols in Fusel Oil. To evaluate its feasibility and design a unit on large scale, kinetic and phase equilibrium models are necessary. In this work, we experimentally investigate reaction kinetics for all the esterification and trans- esterification reactions of the different constituents of Fusel Oil with acetic acid. The reactions are performed in the presence of cation exchange resin, Amberlyst-15, in a batch reactor over a wide range of parameters such as temperature, mole ratio and catalyst loading. A unified Langmuir–Hinshelwood–Hougen–Watson (LHHW) model is proposed for the reacting system consisting of all the alcohols and the experimental data is used to estimate the model parameters. The predictions are in line with the experimental data for individual alcohols as well as their mixtures. A feasible process based on reactive distillation is simulated in ASPEN PLUS using the kinetics developed in this work.
Abdul Mutalib Leman - One of the best experts on this subject based on the ideXlab platform.
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Effects of Fusel Oil water content reduction on fuel properties, performance and emissions of SI engine fueled with gasoline -Fusel Oil blends
Renewable Energy, 2018Co-Authors: Omar Ibraheem Awad, Rizalman Mamat, Thamir K. Ibrahim, Maurice Kettner, Kumaran Kadirgama, Abdul Mutalib Leman, A.i.m. SaifulAbstract:Abstract This study sets out to determine the effects of water reduction on the properties characteristic of Fusel Oil-gasoline blends, also to study the effects of this reduction on the performance and emissions of an SI engine. The experiments were performed on a SI engine under 4500 rpm speed, different open throttle valve position (% of WOT) as engine loads. As a result of the reduced water contentfrom 13.5% to 6.5%, the heating value and carbon content improved by 13% and 7.9% respectively. While the oxygen content reduced by 14%. The brake power was slightly increased than that of gasoline for most Fusel Oil–gasoline blends. Furthermore, it was observed that the Fusel Oil after water extraction (FAWE10 and FAWE20), the Fusel Oil had slightly higher power compared to the Fusel Oil before water extraction (FBWE10 and FBWE20). Moreover, brake-specific fuel consumption (BSFC) and brake thermal efficiency (BTE) improved by reducing the water content. The engine emissions were also slightly increased with the reduction of water content.
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Performance and Combustion Characteristics of an SI Engine Fueled With Fusel Oil-Gasoline at Different Water Content
Applied Thermal Engineering, 2017Co-Authors: Omar I. Awad, Obed M. Ali, Rizalman Mamat, Thamir K. Ibrahim, Kumaran Kadirgama, Abdul Mutalib LemanAbstract:The main objective of the current study is to investigate the impacts of Fusel Oil-gasoline blends with different water content on performance and combustion characteristics of an SI engine. The water content of Fusel Oil is reduced by employing rotary extractor method. The parameters examined in the current study are the effects of test fuels upon engine performance criteria, fuel combustion, location of CA50 and coefficient of variation of indicated mean effective pressure (COVIMEP). The experiments are conducted in a SI engine with two blending ratio of gasoline-Fusel Oil (FBWE10 and FAWE10) in addition to pure gasoline as a standard fuel under different engine speeds and constant 45% of WOT engine load. The study results reveal that engine power, torque, and brake thermal efficiency have slightly improved with Fusel Oil-gasoline blends that were obvious clearly after reduction of water content. On the other hand, though the brake specific fuel consumption of FAWE10 slightly improve compared to FBWE10 but still higher than gasoline. Furthermore, the peak in-cylinder pressure, rate of heat release, and rate of pressure rise enhanced with Fusel Oil-gasoline blends. The (CA 0–10) and (CA 10–90) duration could be simultaneously decreased by reducing the water content of Fusel Oil, all of that are helpful to improve the stability of combustion and thought to be reasons for the reduction in COVIMEP. As a conclusion, the reduction of Fusel Oil water content has played positively to enhance the combustion and performance characteristics of the fuel blend and result in more stable engine operation.
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Response Surface Methodology (RSM) Based Multi-Objective Optimization of Fusel Oil-Gasoline Blends at Different Water Content in SI Engine
Energy Conversion and Management, 2017Co-Authors: Omar I. Awad, Obed M. Ali, Rizalman Mamat, Kumaran Kadirgama, Abdul Mutalib Leman, I.m. Yusri, W.h. Azmi, Talal YusafAbstract:The main objective of this study is to determine the optimal blend ratio of Fusel Oil–gasoline before and after water extraction (FBWE10, FBWE20, FAWE10, and FAWE20) regarding the performance and emissions of spark ignition engine using response surface methodology (RSM). The multi-objective optimization is applied to maximize the brake power, brake thermal efficiency and minimize the brake specific fuel consumption (BSFC), NOx emission, HC emission and CO emission. The water content of Fusel Oil has been extracted by employing rotary extractor method. The experimental of this study has been carried out with different Fusel Oil–gasoline blends, different throttle valve opening position (15%, 30%, 45% and 60%) and different engine speed (1500, 2500, 3500 and 4500 rpm). All the developed models for responses were determined to be statistically significant at 95% confidence level. The study results reveal an improvement in heating value of Fusel Oil after water extraction with FAWE20 (80 vol% gasoline fuel, 20 vol% Fusel Oil after water extracted) as the optimally blended fuel. The best condition of engine parameters with FAWE20 were 55.4% of WOT for load and 4499 rpm engine speed. In additional of the optimal values with a high desirability of 0.707 were 62.511 kW, 241.139 g/kW h, 36%, 1895.913 ppm140.829 ppm and % for brake power, BSFC, BTE, NOx, HC and CO emissions respectively. The reduction of water content in Fusel Oil has a statistical significance influence to increases BTE, NOx emission and decreases the BSFC, HC and CO emissions.
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Calorific value enhancement of Fusel Oil by moisture removal and its effect on the performance and combustion of a spark ignition engine
Energy Conversion and Management, 2017Co-Authors: Omar I. Awad, Rizalman Mamat, Thamir K. Ibrahim, I.m. Yusri, M. M. Noor, Ftwi Yohaness Hagos, Abdul Mutalib LemanAbstract:The major limitation in the usability of Fusel Oil as blend fuel in spark-ignition (SI) engine is the presence of moisture that plays a negative role in the calorific value (CV). The main objective of the current study is to improve the CV of Fusel Oil by the extraction of moisture content. In addition to this, it is aimed to conduct comparative study on the effect of the improvement of the CV of the blend fuel on the combustion and performance. The experiment is conducted in an SI engine under and engine speed of 4500 rpm, 60 throttle open and at different blending ratio of gasoline-Fusel Oil. The parameters examined in the current study are the effects of test fuels upon the brake power (BP), the brake thermal efficiency (BTE), the brake specific fuel consumption (BSFC), the in-cylinder pressure, the rate of heat release (ROHR), the rate of pressure rise (ROPR), the mass fraction burned (MFB), the combustion durations (CD), the indicated mean effective pressure (IMEP) and the coefficient of variation of the indicated mean effective pressure (IMEP) (COVimep). With the reduction of the moisture content of the Fusel Oil from 13.5% to 6.5%, the improvement on the CV is reported to be by 13%. The BP, BSFC and BTE have slightly improved with the extraction of moisture. On the comparative study on the combustion and performance, the peak cylinder pressure, the maximum ROPR and the IMEP increased, and its corresponding COV reduced after reducing the moisture content at 10% concentration of Fusel Oil. CD has also reduced with the moisture extraction. As a conclusion, the moisture content of Fusel Oil has played negatively to limit the combustion and performance of the fuel blend despite the high oxygen content of Fusel Oil.
Omar I. Awad - One of the best experts on this subject based on the ideXlab platform.
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Wavelet analysis of an SI engine cycle-to-cycle variations fuelled with the blending of gasoline -Fusel Oil at a various water content
Energy Conversion and Management, 2019Co-Authors: Ahmed N. Abdalla, Obed M. Ali, Omar I. Awad, Hai TaoAbstract:Abstract Cycle to cycle variation of a spark ignition engine is analyzed utilising wavelet analysis technique based on the spectral-temporal approach to stabilizing high cyclic variations. The selected examples of previously published cyclic IMEP measurements from a DISI engine a different percentage of Fusel Oil blended with gasoline (FAWE10, FAWE20, FBWE10 and FBWE20) under 4500 rpm engine speed and 60% WOT are studied. The results reveal that the increase in spectral power is observed with increasing Fusel Oil up to 20% with both blends (FBWE20 and FAWE20). The indicates a pronounced influence of Fusel Oil ratio on the engine CCV of IMEP. However, the maximum peak in GWS observed for FBWE20 fuel blend with more uniform overall spectral power for FAWE20 fuel blend which indicates a noticeable enhancement in cyclic variations behaviour after water extraction. As an outcome, the Fusel Oil water content has acted negatively to restrict the combustion as the Fusel Oil increased as well as the cyclic variations affected despite the high oxygen content and octane number of Fusel Oil.
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By-Product Alcohol: Fusel Oil as an Alternative Fuel in Spark Ignition Engine
World Academy of Science Engineering and Technology International Journal of Transport and Vehicle Engineering, 2017Co-Authors: Omar I. Awad, Rizalman Mamat, M. M. Noor, F. Yusop, I.m. YusriAbstract:Fusel Oil is a by-product obtained through the fermentation of some agricultural products. The Fusel Oil properties are closer to other alternative combustible types and the limited number of studies on the use of Fusel Oil as an alcohol derivative in SI engines constitutes to the base of this study. This paper experimentally examined the impacts of a by-product of alcohol, which is Fusel Oil by blending it with gasoline, on engine performance, combustion characteristics, and emissions in a 4-cylinder SI engine. The test was achieved at different engine speeds and a 60 % throttle valve (load). As results, brake power, BTE, and BSFC of F10 are higher at all engine speeds. Maximum engine BTE was 33.9%, at the lowest BSFC with F10. Moreover, it is worth seeing that the F10 under rich air-fuel ratio has less variation of COVIMEP compared to the F20 and gasoline. F10 represents shorter combustion duration, thereby, the engine power increased. NOx emission for F10 at 4500 rpm was lower than gasoline. The highest value of HC emission is obtained with F10 compared to gasoline and F20 with an average increase of 11% over the engine speed range. CO and CO2 emissions increased when using Fusel Oil blends.
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Performance and Combustion Characteristics of an SI Engine Fueled With Fusel Oil-Gasoline at Different Water Content
Applied Thermal Engineering, 2017Co-Authors: Omar I. Awad, Obed M. Ali, Rizalman Mamat, Thamir K. Ibrahim, Kumaran Kadirgama, Abdul Mutalib LemanAbstract:The main objective of the current study is to investigate the impacts of Fusel Oil-gasoline blends with different water content on performance and combustion characteristics of an SI engine. The water content of Fusel Oil is reduced by employing rotary extractor method. The parameters examined in the current study are the effects of test fuels upon engine performance criteria, fuel combustion, location of CA50 and coefficient of variation of indicated mean effective pressure (COVIMEP). The experiments are conducted in a SI engine with two blending ratio of gasoline-Fusel Oil (FBWE10 and FAWE10) in addition to pure gasoline as a standard fuel under different engine speeds and constant 45% of WOT engine load. The study results reveal that engine power, torque, and brake thermal efficiency have slightly improved with Fusel Oil-gasoline blends that were obvious clearly after reduction of water content. On the other hand, though the brake specific fuel consumption of FAWE10 slightly improve compared to FBWE10 but still higher than gasoline. Furthermore, the peak in-cylinder pressure, rate of heat release, and rate of pressure rise enhanced with Fusel Oil-gasoline blends. The (CA 0–10) and (CA 10–90) duration could be simultaneously decreased by reducing the water content of Fusel Oil, all of that are helpful to improve the stability of combustion and thought to be reasons for the reduction in COVIMEP. As a conclusion, the reduction of Fusel Oil water content has played positively to enhance the combustion and performance characteristics of the fuel blend and result in more stable engine operation.
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The Impacts of Moisture Content on Performance and Emissions of a Four-Cylinder SI Engine Running with Fusel Oil –Gasoline Blends
2017Co-Authors: Omar I. Awad, Rizalman Mamat, M. M. Noor, F. Yusop, I.m. YusriAbstract:Biofuels from Biomass are meant to decrease significantly dependence on fossil Oil and reduce the environmental influences in energy use. Fusel Oil one of biofuel that composed of a mixture of alcohols. Fusel Oil obtained by-product during fermentation of agricultural products such as beet, cone, sweet molasses, grains, potatoes. According to the high research and motor octane rating also a high density of Fusel Oil compared with other fuels maybe it will get an essential place in the alternative. The main objective of this study was to determine the impacts of moisture on performance and emissions characteristics of a four-cylinder engine running with Fusel Oil-gasoline blends. The experiments were performed on spark ignition engine under 4500rpm engine speed, different engine loads and the different blending ratio of gasoline-Fusel Oil (G100, FBWE20, and FAWE20). In addition, the effects of test fuels upon brake power, brake thermal efficiency, brake specific fuel consumption, maximum in-cylinder pressure, and emissions (nitrogen oxide NOx, hydrocarbon HC, carbon monoxide CO, and carbon dioxide CO2) were examined. The heating value of Fusel Oil after water extracted (FAWE) become 33.8 MJ/kg that improved by 13% compared with original one (FBWE) 29.9 MJ/kg. Mostly at all blending of Fusel Oil–gasoline the brake power is slightly increased than that of gasoline. Also, the brake specific fuel consumption (BSFC) and thermal efficiency improved by reduced the water content of fuel Oil. Furthermore, the NOx emission decreased with Fusel Oil-gasoline blends compared with pure gasoline at all engine loads. However, HC, CO, and CO2 emissions increased with Fusel Oil-gasoline blends. In general, the higher oxygen content and octane number of Fusel Oil with reducing water content led to improving the engine performance and NOx emission.
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Response Surface Methodology (RSM) Based Multi-Objective Optimization of Fusel Oil-Gasoline Blends at Different Water Content in SI Engine
Energy Conversion and Management, 2017Co-Authors: Omar I. Awad, Obed M. Ali, Rizalman Mamat, Kumaran Kadirgama, Abdul Mutalib Leman, I.m. Yusri, W.h. Azmi, Talal YusafAbstract:The main objective of this study is to determine the optimal blend ratio of Fusel Oil–gasoline before and after water extraction (FBWE10, FBWE20, FAWE10, and FAWE20) regarding the performance and emissions of spark ignition engine using response surface methodology (RSM). The multi-objective optimization is applied to maximize the brake power, brake thermal efficiency and minimize the brake specific fuel consumption (BSFC), NOx emission, HC emission and CO emission. The water content of Fusel Oil has been extracted by employing rotary extractor method. The experimental of this study has been carried out with different Fusel Oil–gasoline blends, different throttle valve opening position (15%, 30%, 45% and 60%) and different engine speed (1500, 2500, 3500 and 4500 rpm). All the developed models for responses were determined to be statistically significant at 95% confidence level. The study results reveal an improvement in heating value of Fusel Oil after water extraction with FAWE20 (80 vol% gasoline fuel, 20 vol% Fusel Oil after water extracted) as the optimally blended fuel. The best condition of engine parameters with FAWE20 were 55.4% of WOT for load and 4499 rpm engine speed. In additional of the optimal values with a high desirability of 0.707 were 62.511 kW, 241.139 g/kW h, 36%, 1895.913 ppm140.829 ppm and % for brake power, BSFC, BTE, NOx, HC and CO emissions respectively. The reduction of water content in Fusel Oil has a statistical significance influence to increases BTE, NOx emission and decreases the BSFC, HC and CO emissions.
Omar Ibraheem Awad - One of the best experts on this subject based on the ideXlab platform.
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The effects of Fusel Oil water content reduction on performance and emissions of SI engine with Fusel Oil – gasoline blended fuel
2018Co-Authors: Omar Ibraheem AwadAbstract: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
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Impact of Fusel Oil moisture reduction on the fuel properties and combustion characteristics of SI engine fueled with gasoline-Fusel Oil blends
Renewable Energy, 2018Co-Authors: Omar Ibraheem Awad, Obed M. Ali, Ali Thaeer Hammid, Rizalman MamatAbstract:Abstract In this study, statistical analysis was used to reveal the significant relation between fuel properties and the reduction of moisture contents at a various fraction of Fusel Oil in the blend. In addition to this, it is also aimed to conduct a comparative study on the effect of the fuel properties on the combustion characteristics before and after moisture extraction from Fusel Oil. The moisture content of Fusel Oil was extracted by employing rotary extractor method, and the fuels were tested in an SI engine under different open throttle valve position (load) and 4500 rpm speed of the engine. As a result, the heating value and carbon content improved significantly after extracting the moisture content from Fusel Oil by 13% and 7% respectively. According to the statistical analysis of test fuel properties results, the heating value, oxygen, and carbon content have statistically significant effects on the test fuels as the fraction of Fusel Oil increased especially after moisture extraction. Furthermore, the brake power and BSFC observed to be improved by extracting the moisture content with shorter combustion durations. Almost all Fusel Oil-gasoline blends have lower COV IMEP at all engine loads compared to pure gasoline.
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Effects of Fusel Oil water content reduction on fuel properties, performance and emissions of SI engine fueled with gasoline -Fusel Oil blends
Renewable Energy, 2018Co-Authors: Omar Ibraheem Awad, Rizalman Mamat, Thamir K. Ibrahim, Maurice Kettner, Kumaran Kadirgama, Abdul Mutalib Leman, A.i.m. SaifulAbstract:Abstract This study sets out to determine the effects of water reduction on the properties characteristic of Fusel Oil-gasoline blends, also to study the effects of this reduction on the performance and emissions of an SI engine. The experiments were performed on a SI engine under 4500 rpm speed, different open throttle valve position (% of WOT) as engine loads. As a result of the reduced water contentfrom 13.5% to 6.5%, the heating value and carbon content improved by 13% and 7.9% respectively. While the oxygen content reduced by 14%. The brake power was slightly increased than that of gasoline for most Fusel Oil–gasoline blends. Furthermore, it was observed that the Fusel Oil after water extraction (FAWE10 and FAWE20), the Fusel Oil had slightly higher power compared to the Fusel Oil before water extraction (FBWE10 and FBWE20). Moreover, brake-specific fuel consumption (BSFC) and brake thermal efficiency (BTE) improved by reducing the water content. The engine emissions were also slightly increased with the reduction of water content.
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Using Fusel Oil as a blend in gasoline to improve SI engine efficiencies: A comprehensive review
Renewable and Sustainable Energy Reviews, 2017Co-Authors: Omar Ibraheem Awad, Obed M. Ali, Rizalman Mamat, A.a. Abdullah, Gholamhassan Najafi, M.k. Kamarulzaman, I.m. Yusri, M. M. NoorAbstract:Alternative fuels are becoming important due to higher energy demands but with limited fuel supplies. 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. Fusel Oil can be used as a clean and high-efficiency spark ignition fuel with a reduced NOx. The energy value of Fusel Oil is near to other alternative combustible types and the limited number of researches on the use of Fusel Oil as an alcohol derivative in spark ignition engines constitute to the base of this research. The literature relevant to Fusel Oil use was reviewed and summarized to demonstrate the viability of Fusel Oil as an alternative fuel from renewable energy source. The aim of this paper was to review the potential for the utilization of Fusel Oil as a candidate for an alternative fuel for spark-ignition engine, while also describing the production and utilization of Fusel Oil generally. The octane number and density of Fusel Oil present the most important properties that make Fusel Oil a candidate for an alternative fuel for SI fuel engines. It was observed that the octane number increased with the increase in percentage of Fusel Oil in the blend tests. It was also noted that when the Fusel Oil was used as a blend with gasoline, the engine torque was slightly increased and the volumetric efficiency and specific fuel consumption also increased. The hydro-carbon (HC) and carbon monoxide (CO) emissions were averagely increased. Furthermore, knocking and nitrogen oxides (NOx) were observed to decrease when Fusel Oil was used. On the other hand, negative effects occurred in the engine performance caused by the higher water content in Fusel Oil.
