A comparative study on the effect of nano-additives on performance and emission characteristics of CI engine run on castor biodiesel blended fuel
Biodiesel is a promising alternative fuel because of its renewable status, biodegradability, non-toxicity, and low pollution levels. However, other limitations such as high viscosity, low thermal energy content, poor atomization, greater densities, and higher (NOx) exhaust emissions hinder its adopt...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-10-01
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| Series: | Energy Conversion and Management: X |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2590174523001496 |
| _version_ | 1797449785921241088 |
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| author | Mishamo Tesfaye Lamore Dinku Seyoum Zeleke Belayneh Yitayew Kassa |
| author_facet | Mishamo Tesfaye Lamore Dinku Seyoum Zeleke Belayneh Yitayew Kassa |
| author_sort | Mishamo Tesfaye Lamore |
| collection | DOAJ |
| description | Biodiesel is a promising alternative fuel because of its renewable status, biodegradability, non-toxicity, and low pollution levels. However, other limitations such as high viscosity, low thermal energy content, poor atomization, greater densities, and higher (NOx) exhaust emissions hinder its adoption as a prospective diesel alternative. The current study focuses on comparing and analyzing the performance and emission effects of introducing single and hybrid cerium oxide (CeO2) and aluminum oxide (Al2O3) nanoparticles to a fuel blend of 20 % castor biodiesel and 80 % diesel (CB20) made from castor seed oil. The pulsed plasma in liquid technique, a straightforward one-step procedure, was used to create cerium oxide (CeO2) nanoparticles. When Al2O3 nanoparticles were added to the CB20, the cylinder pressure and rate of heat release increased. Therefore, in this study single and hybrid cerium oxide (CeO2) and aluminum oxide (Al2O3) nanoparticles are introduced. The tests were conducted on a single cylinder compression ignition engine at varied engine speeds between 1250 and 3200 rpm while keeping a constant engine load. Using a water bath and sonication, two concentrations of the nanoparticles—80 and 100 ppm—were introduced to the fuel blends, along with Tween 80 and span 80 surfactants to improve blend stability. Different tested fuel samples, including pure diesel CB0, CB20, CB20C100, CB20C80, CB20A100, CB20A80, CB20A40C40, and CB20A50C50, were examined for their physiochemical properties, such as density, viscosity, cloud point, pour point, flash point, and fire points, as well as engine performance parameters, including torque, power, fuel consumption, BTE, and EGT. CB20A50C50 and CB20A40C40 both had an average brake power that was higher than diesel fuel by 6.14 % and 1.25 percent, respectively. The average brake-specific fuel consumption decreased by 3.21 % to 8.29 % when using hybrid and single nano-additive blended fuels compared to CB20. CB20A50C50 exhibited a 20.38 % higher brake thermal efficiency than CB20. Notably, CB20C100 showed a 29.52 % reduction in HC and a 38.32 % reduction in CO, while CB20A50C50 demonstrated a 10.24 % decrease in NOx compared to CB20. Overall, the results of this study indicate that the generated fuel blends combining castor biodiesel and aluminum oxide/cerium oxide nanoparticles hold promise as alternate fuels for diesel engines, with positive impacts on engine performance and emissions. |
| first_indexed | 2024-03-09T14:30:05Z |
| format | Article |
| id | doaj.art-bacc7cc11a6d4797a438dcd04bac7841 |
| institution | Directory Open Access Journal |
| issn | 2590-1745 |
| language | English |
| last_indexed | 2024-03-09T14:30:05Z |
| publishDate | 2023-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Conversion and Management: X |
| spelling | doaj.art-bacc7cc11a6d4797a438dcd04bac78412023-11-28T04:06:18ZengElsevierEnergy Conversion and Management: X2590-17452023-10-0120100493A comparative study on the effect of nano-additives on performance and emission characteristics of CI engine run on castor biodiesel blended fuelMishamo Tesfaye Lamore0Dinku Seyoum Zeleke1Belayneh Yitayew Kassa2Department of Mechanical Engineering, Wachemo University, P.O Box 667, Hossana, EthiopiaDepartment of Mechanical Engineering, College of Engineering, Addis Ababa Science and Technology University, P.O Box 16417, Addis Ababa, Ethiopia; Corresponding author.Department of Automotive Engineering, Arba Minch University, P.O Box 21, Arba Minch, EthiopiaBiodiesel is a promising alternative fuel because of its renewable status, biodegradability, non-toxicity, and low pollution levels. However, other limitations such as high viscosity, low thermal energy content, poor atomization, greater densities, and higher (NOx) exhaust emissions hinder its adoption as a prospective diesel alternative. The current study focuses on comparing and analyzing the performance and emission effects of introducing single and hybrid cerium oxide (CeO2) and aluminum oxide (Al2O3) nanoparticles to a fuel blend of 20 % castor biodiesel and 80 % diesel (CB20) made from castor seed oil. The pulsed plasma in liquid technique, a straightforward one-step procedure, was used to create cerium oxide (CeO2) nanoparticles. When Al2O3 nanoparticles were added to the CB20, the cylinder pressure and rate of heat release increased. Therefore, in this study single and hybrid cerium oxide (CeO2) and aluminum oxide (Al2O3) nanoparticles are introduced. The tests were conducted on a single cylinder compression ignition engine at varied engine speeds between 1250 and 3200 rpm while keeping a constant engine load. Using a water bath and sonication, two concentrations of the nanoparticles—80 and 100 ppm—were introduced to the fuel blends, along with Tween 80 and span 80 surfactants to improve blend stability. Different tested fuel samples, including pure diesel CB0, CB20, CB20C100, CB20C80, CB20A100, CB20A80, CB20A40C40, and CB20A50C50, were examined for their physiochemical properties, such as density, viscosity, cloud point, pour point, flash point, and fire points, as well as engine performance parameters, including torque, power, fuel consumption, BTE, and EGT. CB20A50C50 and CB20A40C40 both had an average brake power that was higher than diesel fuel by 6.14 % and 1.25 percent, respectively. The average brake-specific fuel consumption decreased by 3.21 % to 8.29 % when using hybrid and single nano-additive blended fuels compared to CB20. CB20A50C50 exhibited a 20.38 % higher brake thermal efficiency than CB20. Notably, CB20C100 showed a 29.52 % reduction in HC and a 38.32 % reduction in CO, while CB20A50C50 demonstrated a 10.24 % decrease in NOx compared to CB20. Overall, the results of this study indicate that the generated fuel blends combining castor biodiesel and aluminum oxide/cerium oxide nanoparticles hold promise as alternate fuels for diesel engines, with positive impacts on engine performance and emissions.http://www.sciencedirect.com/science/article/pii/S2590174523001496Nano-additivesAlternative fuelsCastor biodieselWater bath-sonication processEngine performanceEmission characteristics |
| spellingShingle | Mishamo Tesfaye Lamore Dinku Seyoum Zeleke Belayneh Yitayew Kassa A comparative study on the effect of nano-additives on performance and emission characteristics of CI engine run on castor biodiesel blended fuel Energy Conversion and Management: X Nano-additives Alternative fuels Castor biodiesel Water bath-sonication process Engine performance Emission characteristics |
| title | A comparative study on the effect of nano-additives on performance and emission characteristics of CI engine run on castor biodiesel blended fuel |
| title_full | A comparative study on the effect of nano-additives on performance and emission characteristics of CI engine run on castor biodiesel blended fuel |
| title_fullStr | A comparative study on the effect of nano-additives on performance and emission characteristics of CI engine run on castor biodiesel blended fuel |
| title_full_unstemmed | A comparative study on the effect of nano-additives on performance and emission characteristics of CI engine run on castor biodiesel blended fuel |
| title_short | A comparative study on the effect of nano-additives on performance and emission characteristics of CI engine run on castor biodiesel blended fuel |
| title_sort | comparative study on the effect of nano additives on performance and emission characteristics of ci engine run on castor biodiesel blended fuel |
| topic | Nano-additives Alternative fuels Castor biodiesel Water bath-sonication process Engine performance Emission characteristics |
| url | http://www.sciencedirect.com/science/article/pii/S2590174523001496 |
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